{"type": "FeatureCollection", "features": [{"id": "10.5281/zenodo.4487144", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:21:04Z", "type": "Dataset", "title": "Eddy Covariance data from ICOS-associated station IT-NIV \u2013 August-November 2019", "description": "RestrictedData stored here refer to Eddy Covariance (EC) data measured in 2019 between August and November at the Alpine CZO (Critical Zone Observatory, hereafter CZO@Nivolet) which was established at the Nivolet Plain (Piani del Nivolet) in the Gran Paradiso National Park (GPNP), located in the western Italian Alps. The EC site (IT-NIV) is an ICOS-associated station. CZO@Nivolet is aimed at investigating the cross-scale interactions between climatic shifts and ecosystem functions multiple scales, involving multidisciplinary studies. The main research questions that we aim to answer are concerning: (a) the effect of bedrock lithology, soil physics and chemisty, topographic hetereogenity, biotic components and meteo-climatic parameters in modulating CO2 flux in alpine grassland; and (b) what are the controlling factors of organic C and weathering under geologic substrates and different topographic positions. The investigations started in 2017. In 2019, the EC tower was added to deeply study CO2, H20, latent and sensible heat exchanges between soil, vegetation, and atmosphere. Carbon dioxide fluxes and environmental variables are recorded during the snow-free season to estimate carbon storage and explore CO2 fluxes drivers in high-altitude grasslands. Further developments will regard the integration of different techniques (Eddy Covariance, Remote Sensing, Flux chambers) to improve both spatial and temporal extent of carbon fluxes estimates to finally assess grasslands' productivity.", "keywords": ["13. Climate action", "alpine grassland", "15. Life on land", "Gran Paradiso National Park", "Mountain", "EO_Data", "Eddy Covariance", "Net Ecosystem Exchange", "ecosystem-atmosphere carbon exchange"], "contacts": [{"organization": "Vivaldo, Gianna, Raco, Brunella, Baneschi, Ilaria, Giamberini, Maria Silvia,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.4487144"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.4487144", "name": "item", "description": "10.5281/zenodo.4487144", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.4487144"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-05-20T00:00:00Z"}}, {"id": "10.5194/gmd-10-1903-2017", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:19:59Z", "type": "Journal Article", "created": "2017-05-17", "title": "GLEAM\u00a0v3: satellite-based land evaporation and root-zone soil moisture", "description": "

Abstract. The Global Land Evaporation Amsterdam Model (GLEAM) is a set of algorithms dedicated to the estimation of terrestrial evaporation and root-zone soil moisture from satellite data. Ever since its development in 2011, the model has been regularly revised, aiming at the optimal incorporation of new satellite-observed geophysical variables, and improving the representation of physical processes. In this study, the next version of this model (v3) is presented. Key changes relative to the previous version include (1)\uffc2\uffa0a revised formulation of the evaporative stress, (2)\uffc2\uffa0an optimized drainage algorithm, and (3)\uffc2\uffa0a new soil moisture data assimilation system. GLEAM\uffc2\uffa0v3 is used to produce three new data sets of terrestrial evaporation and root-zone soil moisture, including a 36-year data set spanning 1980\uffe2\uff80\uff932015, referred to as v3a (based on satellite-observed soil moisture, vegetation optical depth and snow-water equivalent, reanalysis air temperature and radiation, and a multi-source precipitation product), and two satellite-based data sets. The latter share most of their forcing, except for the vegetation optical depth and soil moisture, which are based on observations from different passive and active C- and L-band microwave sensors (European Space Agency Climate Change Initiative, ESA CCI) for the v3b data set (spanning 2003\uffe2\uff80\uff932015) and observations from the Soil Moisture and Ocean Salinity (SMOS) satellite in the v3c data set (spanning 2011\uffe2\uff80\uff932015). Here, these three data sets are described in detail, compared against analogous data sets generated using the previous version of GLEAM (v2), and validated against measurements from 91 eddy-covariance towers and 2325 soil moisture sensors across a broad range of ecosystems. Results indicate that the quality of the v3 soil moisture is consistently better than the one from v2: average correlations against in situ surface soil moisture measurements increase from 0.61 to 0.64 in the case of the v3a data set and the representation of soil moisture in the second layer improves as well, with correlations increasing from 0.47 to 0.53. Similar improvements are observed for the v3b and c data sets. Despite regional differences, the quality of the evaporation fluxes remains overall similar to the one obtained using the previous version of GLEAM, with average correlations against eddy-covariance measurements ranging between 0.78 and 0.81 for the different data sets. These global data sets of terrestrial evaporation and root-zone soil moisture are now openly available at www.GLEAM.eu and may be used for large-scale hydrological applications, climate studies, or research on land\uffe2\uff80\uff93atmosphere feedbacks.

", "keywords": ["TERRESTRIAL WATER FLUXES", "QE1-996.5", "PONDEROSA PINE", "CARBON-DIOXIDE EXCHANGE", "WACMOS-ET PROJECT", "TRIPLE COLLOCATION ANALYSIS", "DATA ASSIMILATION SYSTEM", "Geology", "15. Life on land", "01 natural sciences", "DECIDUOUS FOREST", "EDDY-COVARIANCE", "PARAMETER RETRIEVAL MODEL", "13. Climate action", "Earth and Environmental Sciences", "ENERGY-BALANCE", "14. Life underwater", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://gmd.copernicus.org/articles/10/1903/2017/gmd-10-1903-2017.pdf"}, {"href": "https://doi.org/10.5194/gmd-10-1903-2017"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoscientific%20Model%20Development", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/gmd-10-1903-2017", "name": "item", "description": "10.5194/gmd-10-1903-2017", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/gmd-10-1903-2017"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-08-05T00:00:00Z"}}, {"id": "00fcaa98-fb45-4696-a450-c5dcb1a480d8", "type": "Feature", "geometry": null, "properties": {"updated": "2025-09-02T09:54:15", "type": "Dataset", "language": "de", "title": "INSPIRE-WFS Soil / Sorptionsverm\u00f6gen im effektiven Wurzelraum BB", "description": "Der interoperable INSPIRE-WFS ist ein Downloaddienst, der Daten im Annex-Schema Boden (abgeleitet aus dem origin\u00e4ren Datensatz: Sorptionsverm\u00f6gen im effektiven Wurzelraum Brandenburg) bereitstellt. Er gibt einen \u00dcberblick \u00fcber die Sorptionskapazit\u00e4t im effektiven Wurzelraum der B\u00f6den Brandenburgs. Diese Karte basiert auf den Legendeneinheiten der Boden\u00fcbersichtskarte (B\u00dcK300) mit entsprechender Zuordnung von parametrisierten Fl\u00e4chenbodenformen. Diese stellen je Legendeneinheit eine Bodenformengesellschaft dar. Die einzelnen (Fl\u00e4chen-)Bodenformen wurden mit Parametern belegt, einschlie\u00dflich der entsprechenden Werte zur Kationenaustauschkapazit\u00e4t (KAK), die durch Gel\u00e4nde- und Laboruntersuchungen bestimmt wurden. Gleiche Horizont-Substrat-Kombinationen wurden zusammengefasst und die entsprechenden Parameter statistisch abgeleitet. Die Abfolge von Horizont-Substrat-Kombinationen in den Fl\u00e4chenbodenformen mit ihren KAK-Werten bildeten die Grundlage f\u00fcr die Berechnung des Sorptionskapazit\u00e4t im effektiven Wurzelraum (s. Hennings 2000, Verkn\u00fcpfungsregel 2.3). Gem\u00e4\u00df der INSPIRE-Datenspezifikation Soil (D2.8.III.3_v3.0) liegen die Inhalte der Boden\u00fcbersichtskarte INSPIRE-konform vor. Der WFS beinhaltet die folgenden FeatureTypes: - Beobachtungsprozess (ompr:Process) mit Angaben zu der am Prozess beteiligten Organisation LBGR, - abgeleitetes Bodenobjekt (so:SoilDerivedObject) mit Angaben zur Beobachtung der Bodeneigenschaft zur Beschreibung des abgeleiteten Bodenobjekts, - Beobachtung einer Bodeneigenschaft (om:OM_Observation) mit Angaben zum Charakter des vom Boden abgeleiteten Objekts, der beobachtete Eigenschaft, der vom Boden abgeleiteten Beobachtung bodenbezogene Eigenschaften, dem Ergebnis der Beobachtungen des abgeleiteten Bodenobjekts, - Bodenk\u00f6rper (so:SoilBody), abgegrenzter und hinsichtlich bestimmter Bodeneigenschaften und/oder r\u00e4umlicher Muster homogener Teil der Bodendecke, und - Bodenschicht (so:SoilLayer) mit Angaben zur Zuordnung der Schicht zu einem ihrer Art entsprechenden Begriff, zum abgeleiteten Profil, das als Referenzprofil f\u00fcr eine bestimmte Art von Boden in einem bestimmten geografischen Gebiet dient, der oberen und unteren Tiefe des Profilelements, gemessen von der Oberfl\u00e4che (0 cm) eines Bodenprofils (in cm). --- The compliant INSPIRE-WFS Soil / Sorptionsverm\u00f6gen im effektiven Wurzelraum Brandenburg is a download service that delivers data in the annex schema Soil (derived from the original data set: Adsorption capacity in the effective root zone Brandenburg). It provides an overview of the adsorption capacity in the effective root zone of the soils in Brandenburg. The map is based on the legend units of the soil map (B\u00dcK300) with corresponding assignment of parameterized soil forms. These represent one soil form society per legend unit. The single soil forms were assigned with parameters, including the corresponding values for cation exchange capacity (CEC), which were determined by field and laboratory investigations. Identical horizon-substrate combinations were summarized and the corresponding parameters were statistically derived. The sequence of horizon-substrate combinations in the soil forms with their CEC values formed the basis for the calculation of the sorption capacity in the effective root zone (see Hennings 2000, method 2.3). The content of the soil map is compliant to the INSPIRE data specification for the annex theme Soil (D2.8.III.3_v3.0). The WFS includes the following feature types: - Observation process (ompr:Process) with information about the organization LBGR involved in the process, - Soil derived object (so:SoilDerivedObject) with information on the observation of the soil property for characterizing the soil derived object, - Observations of a soil derived object (om:OM_Observation) with information about the character of the soil derived object, the observed property, the soil derived observation of soil related properties, the result of the observations of the soil derived object, - Soil body (so:SoilBody), part of the soil cover that is delineated and that is homogeneous with regard to certain soil properties and/or spatial patterns, and - Soil layer (so:SoilLayer) with information about the assignation of the layer according to the concept that fits its kind, to the derived soil profile, which serves as a reference profile for a particular type of soil in a specific geographical area, including the upper and lower depth of the profile element from the surface (0 cm) of a soil profile (in cm).", "formats": [{"name": "HTML"}], "keywords": ["bboxbebb", "boden", "bodenkunde", "bodenschutz", "brandenburg", "cation-exchange-capacity", "de", "depthinterval", "derivedsoilprofile", "geologie", "infofeatureaccessservice", "inspireidentifiziert", "interoperabel", "interoperability", "kationenaustauschkapazita\u0308t", "oberboden", "om_observation", "opendata", "process", "soil", "soilbody", "soilderivedobject", "soillayer", "sorptioncapacityinrootzonedepth", "sorptioncapacityinrootzonedepthwithorganicsurfacelayer", "sorptionsvermo\u0308gen", "sorptionsvermo\u0308gen-im-effektiven-wurzelraum-brandenburg", "wfs"], "contacts": [{"organization": "Landesamt f\u00fcr Bergbau, Geologie und Rohstoffe Brandenburg (LBGR)", "roles": ["creator"]}]}, "links": [{"href": "https://geoportal.brandenburg.de/detailansichtdienst/render?view=gdibb&url=https%3A%2F%2Fgeoportal.brandenburg.de%2Fgs-json%2Fxml%3Ffileid%3D00fcaa98-fb45-4696-a450-c5dcb1a480d8"}, {"href": "https://inspire.brandenburg.de/services/so_sorption_wfs?REQUEST=GetCapabilities&SERVICE=WFS"}, {"href": "https://isk.geobasis-bb.de/geodienste/Sonstiges/Hilfe_Nutzung_Downloaddienst.pdf"}, {"href": "http://data.europa.eu/88u/dataset/00fcaa98-fb45-4696-a450-c5dcb1a480d8~~1"}, {"rel": "self", "type": "application/geo+json", "title": "00fcaa98-fb45-4696-a450-c5dcb1a480d8", "name": "item", "description": "00fcaa98-fb45-4696-a450-c5dcb1a480d8", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/00fcaa98-fb45-4696-a450-c5dcb1a480d8"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"null": "date"}}, {"id": "10.1002/2017JD027346", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:14:24Z", "type": "Journal Article", "created": "2017-12-28", "title": "Soil Moisture-Temperature Coupling in a Set of Land Surface Models", "description": "Abstract

The land surface controls the partitioning of water and energy fluxes and therefore plays a crucial role in the climate system. The coupling between soil moisture and air temperature, in particular, has been shown to affect the severity and occurrence of temperature extremes and heat waves. Here we study soil moisture\uffe2\uff80\uff90temperature coupling in five land surface models, focusing on the terrestrial segment of the coupling in the warm season. All models are run off\uffe2\uff80\uff90line over a common period with identical atmospheric forcing data, in order to allow differences in the results to be attributed to the models' partitioning of energy and water fluxes. Coupling is calculated according to two semiempirical metrics, and results are compared to observational flux tower data. Results show that the locations of the global hot spots of soil moisture\uffe2\uff80\uff90temperature coupling are similar across all models and for both metrics. In agreement with previous studies, these areas are located in transitional climate regimes. The magnitude and local patterns of model coupling, however, can vary considerably. Model coupling fields are compared to tower data, bearing in mind the limitations in the geographical distribution of flux towers and the differences in representative area of models and in situ data. Nevertheless, model coupling correlates in space with the tower\uffe2\uff80\uff90based results (r = 0.5\uffe2\uff80\uff930.7), with the multimodel mean performing similarly to the best\uffe2\uff80\uff90performing model. Intermodel differences are also found in the evaporative fractions and may relate to errors in model parameterizations and ancillary data of soil and vegetation characteristics.

", "keywords": ["ENVIRONMENT SIMULATOR JULES", "FLUXES", "0207 environmental engineering", "02 engineering and technology", "01 natural sciences", "CO2 EXCHANGE", "models", "WATER", "SCALE", "Research Articles", "0105 earth and related environmental sciences", "land surface", "CARBON-DIOXIDE EXCHANGE", "eartH2Observe", "temperature", "15. Life on land", "DECIDUOUS FOREST", "CLIMATE", "EVAPORATION", "VARIABILITY", "13. Climate action", "Earth and Environmental Sciences", "BALANCE", "land surface models", "SENSIBLE HEAT", "land-atmosphere interactions", "soil moisture"]}, "links": [{"href": "https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/2017JD027346"}, {"href": "https://doi.org/10.1002/2017JD027346"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Geophysical%20Research%3A%20Atmospheres", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/2017JD027346", "name": "item", "description": "10.1002/2017JD027346", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/2017JD027346"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-02-01T00:00:00Z"}}, {"id": "0f85c381-e496-47d9-89d8-f1fe2ee1a517", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[-180.0, -90.0], [-180.0, 90.0], [180.0, 90.0], [180.0, -90.0], [-180.0, -90.0]]]}, "properties": {"themes": [{"concepts": [{"id": "geoscientificInformation"}], "scheme": "https://standards.iso.org/iso/19139/resources/gmxCodelists.xml#MD_TopicCategoryCode"}, {"concepts": [{"id": "Soil science"}], "scheme": "Stratum"}, {"concepts": [{"id": "Global"}], "scheme": "Region"}], "updated": "2025-02-05T10:34:26", "type": "Dataset", "language": "eng", "title": "A homogenized soil data file for global environmental research: A subset of FAO, ISRIC and NRCS profiles", "description": "A homogenized, global set of 1,125 soil profiles is presented. These profiles have been extracted from the database developed at ISRIC for a project on \"World Inventory of Soil Emission Potentials\" (WISE), as a contribution to the activities of the Global Soils Data Task Group of IGBP-DIS. The subset consists of a selection of 665 profiles originating from digital data files released by the Natural Resources Conservation Service (NRCS, Lincoln), 250 profiles obtained from the Food and Agriculture Organization (FAO, Rome), and 210 profiles from the reference collection of the International Soil Reference and Information Centre (ISRIC, Wageningen). All profiles are georeferenced and classified in the FAO-Unesco Legend whereby they can be linked to the edited and digital version of the FAO-Unesco Soil Map of the World. This data set is being released in the public domain for use by global modellers and other interested scientists. It is envisaged that the data set will be expanded by ISRIC when new, uniform soil profile data become available.\n\nNote: \na) A more recent version (some 10,000 profiles) of WISE profiles is available at: http://data.isric.org/geonetwork/srv/eng/catalog.search#/metadata/a351682c-330a-4995-a5a1-57ad160e621c (2009)\nb) For a larger compilation see the WoSIS database: http://isric.org/explore/wosis (2017)", "formats": [{"name": "zip"}, {"name": "WWW:DOWNLOAD-1.0-ftp--download"}, {"name": "WWW:LINK-1.0-http--related"}], "keywords": ["calcium", "carbon", "cation exchange capacity", "electrical conductivity", "nitrogen", "organic carbon", "bulk density", "soil classification", "soil depth", "soil profiles", "pH", "salinity", "texture", "water holding capacity", "soil profiles", "nutrients", "Soil science", "Global"], "contacts": [{"name": "Niels Batjes", "organization": "ISRIC - World Soil Information", "position": "Senior Soil Scientist", "roles": ["Author"], "phones": [{"value": null}], "emails": [{"value": "niels.batjes@isric.org"}], "addresses": [{"deliveryPoint": ["PO Box 353"], "city": "Wageningen", "administrativeArea": null, "postalCode": "6700AJ", "country": "Netherlands"}], "links": [{"href": null}]}, {"name": "Eloi Ribeiro", "organization": "ISRIC - World Soil Information (WDC - Soils)", "position": "Geoinformatic", "roles": ["author"], "phones": [{"value": null}], "emails": [{"value": "data@isric.org"}], "addresses": [{"deliveryPoint": ["P.O. Box 47"], "city": "Wageningen", "administrativeArea": null, "postalCode": "6708 PB", "country": "Netherlands"}], "links": [{"href": null}]}, {"name": "Data info desk", "organization": "ISRIC - World Soil Information (WDC - Soils)", "position": null, "roles": ["custodian"], "phones": [{"value": null}], "emails": [{"value": "data@isric.org"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": null}]}, {"name": "Data info desk", "organization": "ISRIC - World Soil Information (WDC - Soils)", "position": null, "roles": ["pointOfContact"], "phones": [{"value": null}], "emails": [{"value": "data@isric.org"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": null}]}, {"organization": "ISRIC - World Soil Information (WDC - Soils)", "roles": ["contributor"]}], "distancevalue": "30", "distanceuom": "arc-second"}, "links": [{"href": "https://files.isric.org/public/wise/ISRIC_report_1995_10b.zip", "name": "Download", "protocol": "WWW:DOWNLOAD-1.0-ftp--download", "rel": "download"}, {"href": "https://www.isric.org/documents/document-type/isric-report-199510b-homogenized-soil-data-file-global-environmental", "name": "Project webpage", "protocol": "WWW:LINK-1.0-http--related", "rel": "information"}, {"href": "https://files.isric.org/public/thumbnails/wise/ISRIC-WISE_Internat_Soil_Prof_Data_Set_c.png", "name": "preview", "description": "Web image thumbnail (URL)", "protocol": "WWW:LINK-1.0-http--image-thumbnail", "rel": "preview"}, {"rel": "self", "type": "application/geo+json", "title": "0f85c381-e496-47d9-89d8-f1fe2ee1a517", "name": "item", "description": "0f85c381-e496-47d9-89d8-f1fe2ee1a517", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/0f85c381-e496-47d9-89d8-f1fe2ee1a517"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"interval": ["1950-01-01T00:00:00Z", "1995-07-01T00:00:00Z"]}}, {"id": "10.1002/2017jg004139", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:14:24Z", "type": "Journal Article", "created": "2017-12-12", "title": "Acclimation of Biogenic Volatile Organic Compound Emission From Subarctic Heath Under Long-Term Moderate Warming", "description": "Abstract

Biogenic volatile organic compound (BVOC) emissions from subarctic ecosystems have shown to increase drastically in response to a long\uffe2\uff80\uff90term temperature increase of only 2\uffc2\uffb0C. We assessed whether this increase takes place already after 3\uffc2\uffa0years of warming and how the increase changes over time. To test this, we measured BVOC emissions and CO2 fluxes in a field experiment on a subarctic wet heath, where ecosystem plots were subjected to passive warming by open top chambers for 3 (OTC3) or 13\uffc2\uffa0years (OTC13) or were kept as unmanipulated controls. Already after 3\uffc2\uffa0years of moderate temperature increase of 1\uffe2\uff80\uff932\uffc2\uffb0C, warming increased the emissions of isoprene (five\uffe2\uff80\uff90 to sixfold) and monoterpenes (three\uffe2\uff80\uff90 to fourfold) from the subarctic heath. The several\uffe2\uff80\uff90fold higher BVOC emissions in the warmed plots are likely a result of increased vegetation biomass and altered vegetation composition as a shift in the species coverage was observed already after 3\uffc2\uffa0years of warming. Warming also increased gross ecosystem production and ecosystem respiration, but the increases were much lower than those for BVOCs. Our results demonstrate that the strong BVOC responses to warming already appeared after 3\uffc2\uffa0years, and the BVOC and CO2 fluxes had acclimated to this warming after 3\uffc2\uffa0years, showing no differences with another 10\uffc2\uffa0years of warming. This finding has important implications for predicting CO2 and BVOC fluxes in subarctic ecosystems.

", "keywords": ["BVOC", "Arctic", "climate change", "tundra", "13. Climate action", "CO2 exchange", "11. Sustainability", "15. Life on land", "isoprene", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/2017JG004139"}, {"href": "https://doi.org/10.1002/2017jg004139"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Geophysical%20Research%3A%20Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/2017jg004139", "name": "item", "description": "10.1002/2017jg004139", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/2017jg004139"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-01-01T00:00:00Z"}}, {"id": "10.1002/adsc.201900132", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-22T16:14:24Z", "type": "Journal Article", "created": "2019-03-26", "title": "Transhalogenation Catalysed by Haloalkane Dehalogenases Engineered to Stop Natural Pathway at Intermediate", "description": "Abstract

Haloalkane dehalogenases (HLDs) are \uffce\uffb1/\uffce\uffb2\uffe2\uff80\uff90hydrolases that convert halogenated compounds to their corresponding alcohols. The overall kinetic mechanism proceeds via four steps: (i) binding of halogenated substrate, (ii) bimolecular nucleophilic substitution (SN2) leading to the cleavage of a carbon\uffe2\uff80\uff90halogen bond and the formation of an alkyl\uffe2\uff80\uff90enzyme intermediate, (iii) nucleophilic addition of a water molecule resulting in the hydrolysis of the intermediate to the corresponding alcohol and (iv) release of the reaction products \uffe2\uff80\uff93 an alcohol, a halide ion and a proton. Although, the overall reaction has been reported as irreversible, several kinetic evidences from previous studies suggest the reversibility of the first SN2 chemical step. To study this phenomenon, we have engineered HLDs to stop the catalytic cycle at the stage of the alkyl\uffe2\uff80\uff90enzyme intermediate. The ability of the intermediate to exchange halides was confirmed by a stopped\uffe2\uff80\uff90flow fluorescence binding analysis. Finally, the transhalogenation reaction was confirmed with several HLDs and 2,3\uffe2\uff80\uff90dichloropropene in the presence of a high concentration of iodide. The formation of the transhalogenation product 3\uffe2\uff80\uff90iodo\uffe2\uff80\uff902\uffe2\uff80\uff90chloropropene catalysed by five mutant HLDs was identified by gas chromatography coupled with mass spectrometry. Hereby we demonstrated the reversibility of the cleavage of the carbon\uffe2\uff80\uff90halogen bond by HLDs resulting in a transhalogenation. After optimization, the transhalogenation reaction can possibly find its use in biocatalytic applications. Enabling this reaction by strategically engineering the enzyme to stop at an intermediate in the catalytic cycle that is synthetically more useful than the product of the natural pathway is a novel concept.

magnified image

", "keywords": ["0301 basic medicine", "enzyme catalysis; halide exchange; haloalkane dehalogenase; nucleophilic substitution; redirection of reaction; transhalogenation", "0303 health sciences", "03 medical and health sciences"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1002/adsc.201900132"}, {"href": "https://doi.org/10.1002/adsc.201900132"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Advanced%20Synthesis%20%26amp%3B%20Catalysis", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/adsc.201900132", "name": "item", "description": "10.1002/adsc.201900132", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/adsc.201900132"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-04-17T00:00:00Z"}}, {"id": "10.1002/rcm.8478", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:14:31Z", "type": "Journal Article", "created": "2019-05-07", "title": "Determination of the triple oxygen and carbon isotopic composition of CO 2 from atomic ion fragments formed in the ion source of the 253 Ultra high\u2010resolution isotope ratio mass spectrometer", "description": "Rationale

Determination of \uffce\uffb417O values directly from CO2 with traditional gas source isotope ratio mass spectrometry is not possible due to isobaric interference of 13C16O16O on 12C17O16O. The methods developed so far use either chemical conversion or isotope equilibration to determine the \uffce\uffb417O value of CO2. In addition, \uffce\uffb413C measurements require correction for the interference from 12C17O16O on 13C16O16O since it is not possible to resolve the two isotopologues.

Methods

We present a technique to determine the \uffce\uffb417O, \uffce\uffb418O and \uffce\uffb413C values of CO2 from the fragment ions that are formed upon electron ionization in the ion source of the Thermo Scientific 253 Ultra high\uffe2\uff80\uff90resolution isotope ratio mass spectrometer (hereafter 253 Ultra). The new technique is compared with the CO2\uffe2\uff80\uff90O2 exchange method and the 17O\uffe2\uff80\uff90correction algorithm for \uffce\uffb417O and \uffce\uffb413C values, respectively.

Results

The scale contractions for \uffce\uffb413C and \uffce\uffb418O values are slightly larger for fragment ion measurements than for molecular ion measurements. The \uffce\uffb417O and \uffce\uff9417O values of CO2 can be measured on the 17O+ fragment with an internal error that is a factor 1\uffe2\uff80\uff932 above the counting statistics limit. The ultimate precision depends on the signal intensity and on the total time that the 17O+ beam is monitored; a precision of 14\uffe2\uff80\uff89ppm (parts per million) (standard error of the mean) was achieved in 20\uffe2\uff80\uff89hours at the University of G\uffc3\uffb6ttingen. The \uffce\uff9417O measurements with the O\uffe2\uff80\uff90fragment method agree with the CO2\uffe2\uff80\uff90O2 exchange method over a range of \uffce\uff9417O values of \uffe2\uff88\uff920.3 to +0.7\uffe2\uff80\uffb0.

Conclusions

Isotope measurements on atom fragment ions of CO2 can be used as an alternative method to determine the carbon and oxygen isotopic composition of CO2 without chemical processing or corrections for mass interferences.

", "keywords": ["550", "NITROUS-OXIDE", "O-17/O-16", "ANALYTICAL SYSTEM", "01 natural sciences", "O-2", "0104 chemical sciences", "O-17 CORRECTION", "HIGH-PRECISION MEASUREMENTS", "13. Climate action", "Life Science", "ABUNDANCE", "DELTA-O-17", "EXCHANGE", "DIOXIDE", "Research Articles", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1002/rcm.8478"}, {"href": "https://doi.org/10.1002/rcm.8478"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Rapid%20Communications%20in%20Mass%20Spectrometry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/rcm.8478", "name": "item", "description": "10.1002/rcm.8478", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/rcm.8478"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-08-05T00:00:00Z"}}, {"id": "10.1016/j.agrformet.2008.10.002", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:15:24Z", "type": "Journal Article", "created": "2008-11-27", "title": "Multiple Measurements Constrain Estimates Of Net Carbon Exchange By A Eucalyptus Forest", "description": "Abstract Net ecosystem exchange of carbon ( F NEE ) was estimated for a temperate broadleaf, evergreen eucalypt forest ecosystem at Tumbarumba in south-eastern Australia to investigate the processes controlling forest carbon sinks and their response to climate. Measurements at a range of temporal and spatial scales were used to make three different estimates of F NEE based on: (1) the difference between fluxes of carbon input by photosynthesis and output by autotrophic plus heterotrophic respiration, (2) changes over time in the carbon pools in the above- and below-ground biomass, soil and litter, and (3) micrometeorological flux measurements that provide a continuous estimate of the net exchange. A rigorous comparison of aggregated component fluxes and the net eddy fluxes within a flux tower source area was achieved based on an inventory of the site and a detailed sampling strategy. Measurements replicated in space and time provided mean values, confidence limits and patterns of variation of carbon pools and fluxes that allowed comparisons within known limits of uncertainty. As a result of comparisons between nighttime eddy flux and chamber measurements of respiration, a revised micrometeorological method was developed for estimating nighttime carbon flux using flux tower measurements. Uncertainty in the final estimate of F NEE was reduced through mutual constraints of each of these measurement approaches. F NEE for the period October 2001\u2013September 2002, with average rainfall, was an uptake of 6.7 (5.1\u20138.3)\u00a0tC\u00a0ha \u22121 \u00a0yr \u22121 estimated from component fluxes, and 5.4 (3.0\u20137.5)\u00a0tC\u00a0ha \u22121 \u00a0yr \u22121 estimated from the revised eddy flux method. Biomass increment was 4.5 (3.7\u20135.4)\u00a0tC\u00a0ha \u22121 \u00a0yr \u22121 and the remaining 0.9\u20132.2\u00a0tC\u00a0ha \u22121 \u00a0yr \u22121 could represent a carbon sink in the soil and litter pools or lie within the confidence limits of the measured fluxes. F NEE was reduced to \u22120.1 to 2.4\u00a0tC\u00a0ha \u22121 \u00a0yr \u22121 during a period of drought and insect disturbance in October 2002\u2013September 2003, with biomass increment being the main component reduced. The forest is a large carbon sink compared with other forest ecosystems, but this is subject to high-annual variability in response to climate variability and disturbance.", "keywords": ["biosphere", "Ecosystem respiration", "net ecosystem exchange", "01 natural sciences", "Carbon budget", "carbon sinks", "evergreen forest", "forests and forestry", "Hexapoda Biosphere-atmosphere interaction", "XXXXXX - Unknown", "measurement method", "estimation method", "0105 earth and related environmental sciences", "Eucalyptus", "Australasia", "carbon", "Tumbarumba", "Carbon sinks", "Australia", "04 agricultural and veterinary sciences", "15. Life on land", "Keywords: carbon emission", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "New South Wales", "ecosystems", "respiration"]}, "links": [{"href": "https://openresearch-repository.anu.edu.au/bitstream/1885/51624/5/09_Keith_-_Multiple_measurements.pdf.jpg"}, {"href": "https://openresearch-repository.anu.edu.au/bitstream/1885/51624/7/01_Keith_Multiple_measurements_2009.pdf.jpg"}, {"href": "https://doi.org/10.1016/j.agrformet.2008.10.002"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agricultural%20and%20Forest%20Meteorology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agrformet.2008.10.002", "name": "item", "description": "10.1016/j.agrformet.2008.10.002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agrformet.2008.10.002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-03-01T00:00:00Z"}}, {"id": "10.1007/s10661-009-0774-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:14:56Z", "type": "Journal Article", "created": "2009-02-19", "title": "Lead Contamination Of An Agricultural Soil In The Vicinity Of A Shooting Range", "description": "In this study, coupled Pb concentration/Pb isotope data were used to evaluate the effect of a shooting range (operational for over 30 years) on Pb contamination of adjacent agricultural soils and the associated environmental risks. Lead was mainly concentrated in the arable layer of the contaminated agricultural soils at total concentrations ranging from 573 to 694 mg kg(-1). Isotopic analyses ((206)Pb/(207)Pb) proved that Pb originated predominantly from the currently used pellets. Chemical fractionation analyses showed that Pb was mainly associated with the reducible fraction of the contaminated soil, which is in accordance with its predominant soil phases (PbO, PbCO(3)). The 0.05 M EDTA extraction showed that up to 62% of total Pb from the contaminated site is potentially mobilizable. Furthermore, Pb concentrations obtained from the synthetic precipitation leaching procedure extraction exceeded the regulatory limit set by the United States Environmental Protection Agency for drinking water. Ion exchange resin bags showed to be inefficient for determining the vertical distribution of free Pb(2 + ) throughout the soil profile. Increased Pb concentrations were found in the biomass of spring barley (Hordeum vulgare L.) sampled at the studied site and two possible pathways of Pb uptake have been identified: (1) through passive diffusion-driven uptake by roots and (2) especially through atmospheric deposition, which was also proved by analyses of a bioindicator species (bryophyte Hypnum cupressiforme Hedw.). This study showed that shooting ranges can present an important source of Pb contamination of agricultural soils located in their close vicinity.", "keywords": ["2. Zero hunger", "Firearms", "Lead", "Soil Pollutants", "0401 agriculture", " forestry", " and fisheries", "Agriculture", "Ion Exchange Resins", "04 agricultural and veterinary sciences", "01 natural sciences", "6. Clean water", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1007/s10661-009-0774-3"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Monitoring%20and%20Assessment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10661-009-0774-3", "name": "item", "description": "10.1007/s10661-009-0774-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10661-009-0774-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-02-20T00:00:00Z"}}, {"id": "10.1007/s11099-016-0672-1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:15:00Z", "type": "Journal Article", "created": "2016-11-07", "title": "Soil Water Content And Photosynthetic Capacity Of Spring Wheat As Affected By Soil Application Of Nitrogen-Enriched Biochar In A Semiarid Environment", "description": "A field trial was conducted to determine the effect of nitrogen-enriched biochar on soil water content, plant\u2019s photosynthetic parameters, and grain yield of spring wheat at the Dingxi Experimental Station during the 2014 and 2015 cropping seasons. Results showed that biochar applied with nitrogen fertilizer at a rate of 50 kg ha\u20131 of N (BN50) increased soil water content in the 0\u201330 cm depth range by approximately 40, 32, and 53% on average at anthesis, milking, and maturity, respectively, compared with zero-amendment (CN0). Stomatal conductance and net photosynthetic rate after the BN50 treatment increased by approximately 40 to 50% compared to CN0. Soil water content and photosynthetic traits also increased in other treatments using straw plus nitrogen fertilizer, but to lesser extent than that of BN50. Grain yields were highest (1905 and 2133 kg ha\u20131 in 2014 and 2015, respectively) under BN50. From this, biochar appears to have a potential for its use with N-fertilizer as a cost-effective amendment for crop production in semiarid environments.", "keywords": ["2. Zero hunger", "crop residues", "chemical fertilizer", "0401 agriculture", " forestry", " and fisheries", "biochar", "gas exchange", "04 agricultural and veterinary sciences", "15. Life on land", "crop productivity", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1007/s11099-016-0672-1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Photosynthetica", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11099-016-0672-1", "name": "item", "description": "10.1007/s11099-016-0672-1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11099-016-0672-1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-09-01T00:00:00Z"}}, {"id": "10.1016/j.agrformet.2009.04.003", "type": "Feature", "geometry": null, "properties": {"license": "Restricted", "updated": "2026-09-22T16:15:24Z", "type": "Journal Article", "created": "2009-05-20", "title": "Seasonal And Interannual Patterns Of Carbon And Water Fluxes Of A Poplar Plantation Under Peculiar Eco-Climatic Conditions", "description": "This paper reports 3 years of eddy covariance measurements (2002-2004) on a poplar plantation (Populus; x cancidensis Moench, Clone I-214) in Northern Italy. We analyzed seasonal and interannual variability of the net ecosystem exchange (NEE), gross primary production (GPP), ecosystem respiration (R(ECO)) and evapotranspiration (ET) in relation to different meteorological and environmental conditions experienced by the plantation and to natural disturbances. In particular, during 2003 climatic conditions were exceptionally severe, with the highest mean air temperatures and the lowest precipitations observed in the study area in the last 50 years. In addition, during the late summer of 2004, the plantation was attacked by fall webworm larvae (Hyphantria cunea). The cumulated NEE during the three growing season (April-September) was -752.8, -626.7 and -702.7 g C m(-2) for 2002, 2003 and 2004, respectively. In the period June-August 2003, NEE was 35% and 29% higher than the NEE measured in the same period in 2002 and 2004, respectively, resulting in a lower net carbon uptake. As R(ECO) did not show large differences over the three growing seasons, the reduction in net carbon sequestration of June-August 2003 is mainly explained by a reduction of GPP (-18% and -17% in 2002 and 2004, respectively). The cumulated ET over the three growing seasons was 388, 471, 484 kg H(2)O m(-2) for 2002, 2003 and 2004, respectively. This behaviour was due to the fact that the position of the water table remained close to the roots, therefore supplying enough water to the plantation, even during the driest period. The analysis of light curve parameters, their residuals and canopy conductance suggests that the reduction Of CO(2) uptake during summer 2003 was mainly controlled by stomatal and non-stomatal limitations due to high temperatures, directly and in particular indirectly (i.e. through D) rather than by soil water stress. In conclusion, our study shows that in the presence of a heat-wave, a significant reduction of net productivity during summer may occur even in the absence of marked soil water stress. In addition to this sensitivity to high temperatures, which will likely increase in the future, the effects of natural disturbances may add further uncertainties, thus suggesting caution in the evaluation of the potential carbon sequestration of these ecosystems. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.", "keywords": ["Poplar plantations; 2003 Heat-wave; Eddy covariance; Net ecosystem exchange", "13. Climate action", "0207 environmental engineering", "02 engineering and technology", "15. Life on land", "01 natural sciences", "6. Clean water", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.agrformet.2009.04.003"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agricultural%20and%20Forest%20Meteorology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agrformet.2009.04.003", "name": "item", "description": "10.1016/j.agrformet.2009.04.003", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agrformet.2009.04.003"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-09-01T00:00:00Z"}}, {"id": "10.1007/s11104-023-05991-y", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:15:08Z", "type": "Journal Article", "created": "2023-05-10", "title": "Tree stem and soil methane and nitrous oxide fluxes, but not carbon dioxide fluxes, switch sign along a topographic gradient in a tropical forest", "description": "Purpose
Tropical forests exchange large amounts of greenhouse gases (GHGs: carbon dioxide, CO2; methane, CH4; and nitrous oxide, N2O) with the atmosphere. Forest soils and stems can be either sources or sinks for CH4 and N2O, but little is known about what determines the sign and magnitude of these fluxes. Here, we aimed to study how stem and soil GHG fluxes vary along a topographic gradient in a tropical forest.

Methods
Fluxes of GHG from 56 individual tree stems and adjacent soils were measured with manual static chambers. The topographic gradient was characterized by a soil moisture gradient, with one end in a wetland area (\u201cseasonally flooded\u201d; SF), the other end in an upland area (\u201cterra firme\u201d; TF) and in between a transitional area on the slope (SL).

Results
Tree stems and soils were always sources of CO2 with higher fluxes in SF compared to TF and SL. Fluxes of CH4 and N2O were more variable, even within one habitat. Results showed that, in TF, soils acted as sinks for N2O whereas, in SF and SL, they acted as sources. In contrast, tree stems which were predominantly sources of N2O in SF and TF, were sinks in SL. In the soil, N2O fluxes were significantly influenced by both temperature and soil water content, whereas CH4 fluxes were only significantly correlated with soil water content.

Conclusion
SF areas were major sources of the three gases, whereas SL and TF soils and tree stems acted as either sources or sinks for CH4 and N2O. Our results indicate that tree stems represent overlooked sources of CH4 and N2O in tropical forests that need to be further studied to refine GHG budgets.", "keywords": ["[SDV.SA.AGRO] Life Sciences [q-bio]/Agricultural sciences/Agronomy", "106022 Mikrobiologie", "550", "source", "Spatial variation", "Sink", "[SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomy", "spatial variation", "Source", "15. Life on land", "Stem", "630", "soil", "[SDV.GEN.GPL]Life Sciences [q-bio]/Genetics/Plants genetics", "Soil", "Greenhouse gas (GHG) exchange", "13. Climate action", "106026 \u00d6kosystemforschung", "[SDV.GEN.GPL] Life Sciences [q-bio]/Genetics/Plants genetics", "106022 Microbiology", "stem", "sink", "106026 Ecosystem research", "Biology", "greenhouse gas (GHG) exchange"]}, "links": [{"href": "https://doi.org/10.1007/s11104-023-05991-y"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11104-023-05991-y", "name": "item", "description": "10.1007/s11104-023-05991-y", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-023-05991-y"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-05-09T00:00:00Z"}}, {"id": "10.1007/s11270-020-04885-4", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-22T16:15:09Z", "type": "Journal Article", "created": "2020-10-03", "title": "Efficacy of Woodchip Biochar and Brown Coal Waste as Stable Sorbents for Abatement of Bioavailable Cadmium, Lead and Zinc in Soil", "description": "Abstract

Organic sorbents alter physicochemical soil properties and mitigate heavy metal (HM) bioavailability. However, some sorbents are labile and, therefore, introduce the risk of HM release into soil after mineralisation. Before field application, new stable organic sorbents such as woodchip biochar (BIO) and brown coal waste (BCW) need to be tested and compared with standard organic amendments like farmyard manure (FYM). An incubated pot experiment was conducted to investigate the efficacy of FYM, BIO and BCW (added to soil in pots at 5 and 10% w/w) to alter soil physicochemical properties and mitigate bioavailability of Cd, Pb and Zn spiked in treatments at different doses (in mg\uffc2\uffa0kg\uffe2\uff88\uff921); 0 (not spiked), 1 (1 Cd, 70 Pb, 100 Zn) and 2 (3 Cd, 500 Pb, 700 Zn), and incubated for 9\uffc2\uffa0weeks. At the end of the experiment, the EDTA-extractable HM fractions, pH, cation exchange capacity (CEC) and specific surface area (SSA, to check trends) were determined in all treated soils. Results showed that FYM, BCW and BIO generally improved all soil properties (except reduced pH from BCW and apparent SSA reduction from FYM) and accounted for respective maximum abatements of Cd (50.2, 69.9 and 25.5%), Pb (34.2, 64.3 and 17.4%) and Zn (14.9, 17.7 and 11.8%) bioavailability in soil. FYM and BCW were more effective at 10% w/w especially in the low contaminated soil, whereas the highest efficacy for BIO was at 5% w/w and in the high contaminated soil. The efficacies of sorption by the organic sorbents varied for different HMs and were in the orders: BCW > FYM > BIO for Cd, FYM > BCW > BIO for Pb and BIO > BCW > FYM for Zn. Soil pH and CEC were strongly correlated with HM bioavailability in all treatments and implied that immobilisation of HMs occurred via complex formation, ion exchange and pH-dependent specific adsorption. All three sorbents were beneficial as soil amendments, and in terms of HM mitigation, BCW had the highest efficacy, followed by FYM and then BIO. Considering the documented high soil stability of BCW and BIO, these results are promising for further trialling at field scale.50\u00a0cm) was significantly higher in the 3-weekly watering treatment as compared to the weekly watering treatment. This might be beneficial to Quercus suber, the tree component in this ecosystem, as its extensive tree root system enables water acquisition from deeper soil layers. However, manipulation of the within-season precipitation variability, with a shift to fewer, but larger rain events, without change in total precipitation amount, had no significant effect on aboveground net primary productivity (ANPP), belowground net primary productivity (BNPP) and species composition, with average values of peak biomass of 385\u00a0g\u00a0m\u22122 and 222\u00a0g\u00a0m\u22122 for ANPP and BNPP, respectively. The experimental precipitation patterns did not result in significant differences in the vegetation gas exchange between the two watering treatments. The CO2 and H2O exchange parameters correlated well with air temperature. In addition, evapotranspiration showed a good correlation with SWC. Incorporating the data of SWC in the conceptual \u2018bucket model\u2019 showed that, independently of the watering regime, soil water availability during the life-cycle of these annual plants did not reach severe water stress conditions, which can explain the lack of a significant treatment effect in our study. In addition, our results showed that the annual plant community in these Mediterranean ecosystems is well adapted to short-term drought, through their phenological patterns and physiological adaptations.", "keywords": ["2. Zero hunger", "Mediterranean Ecosystem", "species composition", "precipitation variability", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "primary productivity", "climate change", "herbaceous understorey", "vegetation gas exchange", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.agrformet.2012.11.020"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agricultural%20and%20Forest%20Meteorology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agrformet.2012.11.020", "name": "item", "description": "10.1016/j.agrformet.2012.11.020", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agrformet.2012.11.020"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-04-01T00:00:00Z"}}, {"id": "10.1016/j.atmosenv.2006.05.008", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-22T16:15:32Z", "type": "Journal Article", "created": "2007-01-27", "title": "Seasonal Soil And Leaf Co2 Exchange Rates In A Mediterranean Holm Oak Forest And Their Responses To Drought Conditions", "description": "Open AccessPeer reviewed", "keywords": ["0106 biological sciences", "2. Zero hunger", "Foliar net photosynthetic rates", "Drought", "Soil VOC exchange", "Microorganisms", "04 agricultural and veterinary sciences", "15. Life on land", "Soil CO2 flux", "Roots", "01 natural sciences", "6. Clean water", "Mediterranean holm oak forest", "13. Climate action", "Soil CO2 exchange", "Monoterpenes", "Climate change", "0401 agriculture", " forestry", " and fisheries", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.atmosenv.2006.05.008"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.atmosenv.2006.05.008", "name": "item", "description": "10.1016/j.atmosenv.2006.05.008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.atmosenv.2006.05.008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-04-01T00:00:00Z"}}, {"id": "10.1016/j.jhazmat.2009.05.074", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:16:13Z", "type": "Journal Article", "created": "2009-05-23", "title": "Enrichment Of Marsh Soils With Heavy Metals By Effect Of Anthropic Pollution", "description": "The impact of waste disposal on marsh soils was assessed in topsoil samples collected at eight randomly selected points in the salt marsh in Ramallosa (Pontevedra, Spain) at 4-month intervals for 2 years. Polluted soil samples were characterized in physico-chemical terms and their heavy metal contents determined by comparison with control, unpolluted samples. The results revealed a marked effect of waste discharges on the soils in the area, which have low contents in heavy metals under normal environmental conditions. In fact, the studied soils were found to contain substantial amounts of total and DTPA-extractable Cd, Cu, Pb and Zn. Based on the relationship of the redox potential with the DTPA-extractable Cd, Cu, Pb, and Zn contents of the soils, strongly reductive conditions raised the total contents in these elements by effect of their remaining in the soils as precipitated sulphides. Such contents, however, decreased as oxidative conditions gradually prevailed. The contents in DTPA-extractable metals increased with increasing Eh through the release of the metals in ionic form to the soil solution under oxidative conditions. The contents in heavy metals concentrating in the polluted soils were several times higher than those in the control soils (viz. 2 vs. 6 for Cd, 4 vs. 6 for Cu, 4 vs. 20 for Pb, and 2 vs. 15 for Zn, all in mgkg(-1)). This can be expected to influence the amounts of available heavy metals present in the soils, and hence the environmental quality of the area, in the near future. Based on its geoaccumulation index (Class >/=3 for Cd and Cu, and 1-4 for Pb and Zn), the Ramallosa marsh is highly polluted with Cd and moderately to highly polluted with Cu, Pb and Zn. The enrichment factors obtained confirm that the salt marsh is highly polluted (especially with Cd) as the primary result of anthropic activity.", "keywords": ["Industrial Waste", "Reproducibility of Results", "Agriculture", "Pentetic Acid", "15. Life on land", "Waste Disposal", " Fluid", "01 natural sciences", "6. Clean water", "Ion Exchange", "13. Climate action", "Metals", " Heavy", "Wetlands", "Linear Models", "Potentiometry", "Water Pollution", " Chemical", "Soil Pollutants", "Oxidation-Reduction", "Algorithms", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.jhazmat.2009.05.074"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Hazardous%20Materials", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.jhazmat.2009.05.074", "name": "item", "description": "10.1016/j.jhazmat.2009.05.074", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jhazmat.2009.05.074"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-10-01T00:00:00Z"}}, {"id": "10.1016/j.geodrs.2023.e00716", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:16:05Z", "type": "Journal Article", "created": "2023-09-27", "title": "Stakeholders' point of view on access to soil knowledge in France. What are the opportunities for further improvement?", "description": "Life on earth depends on soil health. However, soils are threatened across the world. To respond to the challenges posed by climate change and soil degradation, there is a need to better integrate scientific soil knowledge into the practice. The aim of this paper is to better understand the access to soil knowledge in France and identify opportunities for further improvement, with a particular focus on the difference of point of view between six categories of stakeholders. This study is based on 1951 responses from a participatory stakeholders\u2019 consultation we conducted in France. Our results showed that most stakeholders considered the knowledge they have access to as not adapted to their needs. They also expressed that knowledge sharing between stakeholders was not sufficient. To improve access to soil knowledge, stakeholders suggested adapting at the territorial level the content of soil knowledge shared and transferred, as well as improving ways of sharing and transfer soil knowledge. Additionally, stakeholders valued different exchange networks based on their type of knowledge. Stakeholders with more theoretical soil knowledge (public authorities, NGOs, researchers) stated being more interested in networks between policy, science and society. However, networks with farmers and advisors were more favored by stakeholders with empirical soil knowledge. Considering our findings, in order to strengthen knowledge transfer and sharing, we encourage the promotion of the profession of scientific mediator, as well as the implementation of Living Labs and Lighthouse farms to bring together various stakeholders at a local level towards innovation, training and education. This will ensure a transition towards a more sustainable soil management in Europe.", "keywords": ["multi-actor consultation", "partage des connaissances", "[SDE] Environmental Sciences", "vision des acteurs", "Knowledge sharing", "consultation multi-acteurs", "visi\u00f3n de los actores", "Exchange networks", "consulta multiactor", "Knowledge transfer", "stakeholder perspective.", "333", "12. Responsible consumption", "intercambio de conocimientos", "transfert de connaissances", "sant\u00e9 des sols", "EJPSOIL", "Soil health", "11. Sustainability", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "transferencia de conocimientos", "2. Zero hunger", "salud de los suelos", "soil health", "9. Industry and infrastructure", "4. Education", "15. Life on land", "knowledge transfer", "16. Peace & justice", "exchange networks", "r\u00e9seaux d'\u00e9changes", "Multi-actor consultation", "6. Clean water", "13. Climate action", "[SDE]Environmental Sciences", "8. Economic growth", "redes de intercambio", "Stakeholder perspective", "knowledge sharing"], "contacts": [{"organization": "Mason, Elo\u00efse, Cornu, Sophie, Chenu, Claire,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.geodrs.2023.e00716"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma%20Regional", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geodrs.2023.e00716", "name": "item", "description": "10.1016/j.geodrs.2023.e00716", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geodrs.2023.e00716"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-12-01T00:00:00Z"}}, {"id": "10.1016/j.plaphy.2021.07.014", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:16:18Z", "type": "Journal Article", "created": "2021-07-15", "title": "Excessive nitrogen application under moderate soil water deficit decreases photosynthesis, respiration, carbon gain and water use efficiency of maize", "description": "The impact of water stress and nitrogen (N) nutrition on leaf respiration (R), carbon balance and water use efficiency (WUE) remains largely elusive. Therefore, the objective of the present study was to investigate the effect of soil water and N stresses on growth, physiological responses, leaf structure, carbon gain and WUE of maize. The plants were subjected to different soil water and N regimes to maturity. The results showed that the photosynthesis (An) and stomatal conductance (Gs) decreased significantly under the water stressed treatments across the N treatments mainly ascribed to the decreased plant water status. The moderate water stress reduced the photosynthetic capacity and activity and also caused damage to the structure of leaves, resulting in the significant reduction of An, and thus decreased WUEi. The dark respiration (Rd) was significantly decreased due to the damage of mitochondria, however, the Rd/An increased significantly and the carbon gain was seriously compromised, eventually inhibiting biomass growth under the moderately water stressed treatment. Increasing N dose further aggravated the severity of water deficit, decreased An, Gs and WUEi, damaged the structure and reduced the number of mitochondria of leaves, while increased Rd/An considerably under moderate water stress. Consequently, the biomass accumulation, carbon gain and plant level WUEp in the moderately water stressed treatment decreased markedly under the high N supply. Therefore, excessive N application should be avoided when plants suffer soil water stress in maize production.", "keywords": ["0106 biological sciences", "2. Zero hunger", "Nitrogen", "Respiration", "Water potential", "Water", "Stomatal conductance", "04 agricultural and veterinary sciences", "15. Life on land", "Zea mays", "01 natural sciences", "Carbon", "6. Clean water", "Plant Leaves", "Soil", "Response curve", "Gas exchange", "0401 agriculture", " forestry", " and fisheries", "Photosynthesis", "Water deficit"]}, "links": [{"href": "https://doi.org/10.1016/j.plaphy.2021.07.014"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20Physiology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.plaphy.2021.07.014", "name": "item", "description": "10.1016/j.plaphy.2021.07.014", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.plaphy.2021.07.014"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-09-01T00:00:00Z"}}, {"id": "10.1029/2019jd030387", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:17:01Z", "type": "Journal Article", "created": "2019-06-19", "title": "Global 3-D Simulations of the Triple Oxygen Isotope Signature \u0394 17 O in Atmospheric CO 2", "description": "Abstract

The triple oxygen isotope signature \uffce\uff9417O in atmospheric CO2, also known as its \uffe2\uff80\uff9c17O excess,\uffe2\uff80\uff9d has been proposed as a tracer for gross primary production (the gross uptake of CO2 by vegetation through photosynthesis). We present the first global 3\uffe2\uff80\uff90D model simulations for \uffce\uff9417O in atmospheric CO2 together with a detailed model description and sensitivity analyses. In our 3\uffe2\uff80\uff90D model framework we include the stratospheric source of \uffce\uff9417O in CO2 and the surface sinks from vegetation, soils, ocean, biomass burning, and fossil fuel combustion. The effect of oxidation of atmospheric CO on \uffce\uff9417O in CO2 is also included in our model. We estimate that the global mean \uffce\uff9417O (defined as with \uffce\uffbbRL = 0.5229) of CO2 in the lowest 500\uffc2\uffa0m of the atmosphere is 39.6\uffc2\uffa0per meg, which is \uffe2\uff88\uffbc20\uffc2\uffa0per meg lower than estimates from existing box models. We compare our model results with a measured stratospheric \uffce\uff9417O in CO2 profile from Sodankyl\uffc3\uffa4 (Finland), which shows good agreement. In addition, we compare our model results with tropospheric measurements of \uffce\uff9417O in CO2 from G\uffc3\uffb6ttingen (Germany) and Taipei (Taiwan), which shows some agreement but we also find substantial discrepancies that are subsequently discussed. Finally, we show model results for Zotino (Russia), Mauna Loa (United States), Manaus (Brazil), and South Pole, which we propose as possible locations for future measurements of \uffce\uff9417O in tropospheric CO2 that can help to further increase our understanding of the global budget of \uffce\uff9417O in atmospheric CO2.

", "keywords": ["CARBONIC-ANHYDRASE ACTIVITY", "550", "STRATOSPHERIC CO2", "STOMATAL CONDUCTANCE", "TRACER", "stable isotopes", "MASS", "carbon dioxide (CO)", "01 natural sciences", "7. Clean energy", "DIOXIDE EXCHANGE", "O excess (\u0394O)", "3-DIMENSIONAL SYNTHESIS", "carbon dioxide (CO2)", "carbon cycle", "O-17 excess (Delta O-17)", "SDG 13 - Climate Action", "SDG 14 - Life Below Water", "Research Articles", "0105 earth and related environmental sciences", "O-18 CONTENT", "info:eu-repo/classification/ddc/550", "mass-independent fractionation (MIF)", "ddc:550", "gross primary production (GPP)", "15. Life on land", "Earth sciences", "13. Climate action", "MODEL TM5", "17O excess (\u039417O)", "FIRE EMISSIONS"]}, "links": [{"href": "https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2019JD030387"}, {"href": "https://doi.org/10.1029/2019jd030387"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Geophysical%20Research%3A%20Atmospheres", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/2019jd030387", "name": "item", "description": "10.1029/2019jd030387", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/2019jd030387"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-08-04T00:00:00Z"}}, {"id": "10.1111/j.1438-8677.2012.00627.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:17:58Z", "type": "Journal Article", "created": "2012-06-05", "title": "Physiological And Biochemical Responses Ofquercus Pubescensto Air Warming And Drought On Acidic And Calcareous Soils", "description": "Abstract

The drought\uffe2\uff80\uff90 and thermo\uffe2\uff80\uff90tolerant Quercus pubescens, a tree species growing on both acidic and calcareous soils in the sub\uffe2\uff80\uff90Mediterranean region, was exposed to soil drought (\uffe2\uff88\uff9260% to \uffe2\uff88\uff9280% soil water content) and air warming (+1.2\uffe2\uff80\uff83\uffc2\uffb0C daytime temperature), singly and in combination. The experiment was conducted on two natural forest soils with similar texture but different pH (acidic and calcareous soils). The physiological (photosynthesis) and biochemical (antioxidant system) responses of Q.\uffc2\uffa0pubescens were investigated. On acidic soil, Q.\uffc2\uffa0pubescens had a higher reactive oxygen species (ROS) content than on calcareous soil, confirming that this species is better adapted to the latter soil type. A down\uffe2\uff80\uff90regulation of ascorbate\uffe2\uff80\uff90glutathione cycle enzymes suggests that ROS were used as signalling molecules. Air warming stimulated stomatal opening, while soil drought induced stomatal closure in the late afternoon and reduced Rubisco carboxylation efficiency. Photosynthetic performance in the combined treatment was higher than under single drought stress and similar to control and air warming. Q.\uffc2\uffa0pubescens biochemical responses depended on soil pH. On acidic soil, Q.\uffc2\uffa0pubescens trees exposed to air warming used ROS as signalling molecules. On calcareous soil, these trees were able to balance both soil drought and air warming stress, avoiding ROS toxic effects by increasing antioxidant enzyme activitiy and maintaining a high enzymatic antioxidant defence. When combined, drought and air warming induced either more severe (higher oxidative pressure and impairment of the light\uffe2\uff80\uff90harvesting complex) or different responses (decline of the thermal energy dissipation capacity) relative to the single stressors. Overall, however, Q.\uffc2\uffa0pubescens preserved the functionality of the photosynthetic apparatus and controlled the antioxidant system response, thus confirming its drought and thermo\uffe2\uff80\uff90tolerance and therefore its potential to adapt to the ongoing climate change.

", "keywords": ["0106 biological sciences", "0301 basic medicine", "Hot Temperature", "Climate", "Ribulose-Bisphosphate Carboxylase", "Light-Harvesting Protein Complexes", "Down-Regulation", "Global Warming", "01 natural sciences", "Antioxidants", "Quercus", "Soil", "03 medical and health sciences", "Antioxidant enzyme; ascorbate-glutathione cycle; chlorophyll a fluorescence; gas exchange; oak", "Stress", " Physiological", "Photosynthesis", "Ecosystem", "Antioxidant enzyme; ascorbate-glutathione cycle; chlorophyll a fluorescence; gas exchange; oak.", "Air", "Water", "15. Life on land", "Hydrogen-Ion Concentration", "Adaptation", " Physiological", "6. Clean water", "Droughts", "Oxidative Stress", "13. Climate action", "Plant Stomata"]}, "links": [{"href": "https://doi.org/10.1111/j.1438-8677.2012.00627.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1438-8677.2012.00627.x", "name": "item", "description": "10.1111/j.1438-8677.2012.00627.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1438-8677.2012.00627.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-06-05T00:00:00Z"}}, {"id": "10.1016/j.still.2006.02.003", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:16:40Z", "type": "Journal Article", "created": "2006-04-19", "title": "Effects Of No-Tillage On Chemical Gradients And Topsoil Acidification", "description": "No-tillage is an increasing way of management for agricultural soils. The objective of this study was to identify in which extent the chemical properties of a loamy soil could be affected by no-tillage under temperate conditions. Soil chemical properties were investigated on a field subjected to either conventional or no-tillage management of maize (Zea mays L.) and wheat (Triticum aestivum L.) with identical fertilization practices and no lime supply since 1970. On no-tilled soil, maize was cropped exactly on the same line every other year, which enabled soil sampling under the row and under the interrow.Tilled soil had an homogeneous ploughed horizon, whereas soil under no-tillage exhibited strong vertical gradients of pH, exchangeable cations and organic C. No-tilled soil had 11.4% greater organic C than tilled soil, and the difference was concentrated in the upper 5 cm. The proportion of exchangeable cations was highest in the interrow of no-tilled soil and lowest in tilled soil. Tilled soil contained much lower exchangeable K than no-tilled soil, indicating a difference in retention capacity of this cation. The pH of the upper 5 cm of no-tilled soil was low, probably because of surface accumulation of organic residues. Whatever the tillage system, exchangeable Al was significantly related to pH according to the relation: Al-ex = 76441 x 10(-0.99) (pH) (r(2) = 0.96; p < 0.001). An expected complexing effect of organic matter on Al was not observed, probably hidden by the influence of pH. Since yields were not negatively affected by long-term no-tillage and organic C content was higher, no-tillage appears to be a cost-saving choice for maize and wheat production under these temperate environmental conditions, as well as a way for C sequestration. (c) 2006 Elsevier B.V. All rights reserved.", "keywords": ["2. Zero hunger", "PH", "CHIMIE MINERALE", "04 agricultural and veterinary sciences", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "15. Life on land", "01 natural sciences", "ORGANIC CARBON", "0401 agriculture", " forestry", " and fisheries", "EXCHANGEABLE CATIONS", "NO TILLAGE", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "ALUMINIUM", "ACIDIFICATION", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Limousin, Guillaume, Tessier, Daniel, D.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.still.2006.02.003"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2006.02.003", "name": "item", "description": "10.1016/j.still.2006.02.003", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2006.02.003"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-01-01T00:00:00Z"}}, {"id": "10.1016/j.still.2008.11.007", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:16:41Z", "type": "Journal Article", "created": "2009-01-08", "title": "Soil Organic Carbon And Fertility Interactions Affected By A Tillage Chronosequence In A Brazilian Oxisol", "description": "Abstract No-till (NT) adoption is an essential tool for development of sustainable agricultural systems, and how NT affects the soil organic C (SOC) dynamics is a key component of these systems. The effect of a plow tillage (PT) and NT age chronosequence on SOC concentration and interactions with soil fertility were assessed in a variable charge Oxisol, located in the South Center quadrant of Parana State, Brazil (50\u00b023\u2019W and 24\u00b036'S). The chronosequence consisted of the following six sites: (i) native field (NF); (ii) PT of the native field (PNF-1) involving conversion of natural vegetation to cropland; (iii) NT for 10 years (NT-10); (iv) NT for 20 years (NT-20); (v) NT for 22 years (NT-22); and (vi) conventional tillage for 22 years (CT-22) involving PT with one disking after summer harvest and one after winter harvest to 20\u00a0cm depth plus two harrow disking. Soil samples were collected from five depths (0\u20132.5; 2.5\u20135; 5\u201310; 10\u201320; and 20\u201340\u00a0cm) and SOC, pH (in H 2 O and KCl), \u0394pH, potential acidity, exchangeable bases, and cation exchangeable capacity (CEC) were measured. An increase in SOC concentration positively affected the pH, the negative charge and the CEC and negatively impacted potential acidity. Regression analyses indicated a close relationship between the SOC concentration and other parameters measured in this study. The regression fitted between SOC concentration and CEC showed a close relationship. There was an increase in negative charge and CEC with increase in SOC concentration: CEC increased by 0.37\u00a0cmol c \u00a0kg \u22121 for every g of C\u00a0kg \u22121 soil. The ratio of ECEC:SOC was 0.23\u00a0cmol c \u00a0kg \u22121 for NF and increased to 0.49\u00a0cmol c \u00a0kg \u22121 for NT-22. The rates of P and K for 0\u201310\u00a0cm depth increased by 9.66\u00a0kg\u00a0ha \u22121 \u00a0yr \u22121 and 17.93\u00a0kg\u00a0ha \u22121 \u00a0yr \u22121 , respectively, with NF as a base line. The data presented support the conclusion that long-term NT is a useful strategy for improving fertility of soils with variable charge.", "keywords": ["2. Zero hunger", "Soil management", "Soil organic matter", "Root depth", "Crop residues", "Cation exchange capacity (CEC)", "Conservation agriculture", "Chronosequence", "Acidity", "Sustainable agriculture", "No-till", "Soil ph", "04 agricultural and veterinary sciences", "15. Life on land", "Soil fertility", "Soil quality", "Tillage", "Variable charge", "Soil analysis", "0401 agriculture", " forestry", " and fisheries", "Oxisols", "Field Scale"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2008.11.007"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2008.11.007", "name": "item", "description": "10.1016/j.still.2008.11.007", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2008.11.007"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-06-01T00:00:00Z"}}, {"id": "10.1021/acs.est.1c08789", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-22T16:16:52Z", "type": "Journal Article", "created": "2022-04-18", "title": "Stabilization of Ferrihydrite and Lepidocrocite by Silicate during Fe(II)-Catalyzed Mineral Transformation: Impact on Particle Morphology and Silicate Distribution", "description": "Open AccessISSN:0013-936X", "keywords": ["Minerals", "magnetite", "Silicates", "elemental mapping", "Water", "Ferric Compounds", "01 natural sciences", "Catalysis", "Ferrosoferric Oxide", "atom exchange", "Soil", "iron", "redox", "goethite", "Oxidation-Reduction", "crystal morphology", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://pubs.acs.org/doi/pdf/10.1021/acs.est.1c08789"}, {"href": "https://doi.org/10.1021/acs.est.1c08789"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Science%20%26amp%3B%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1021/acs.est.1c08789", "name": "item", "description": "10.1021/acs.est.1c08789", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1021/acs.est.1c08789"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-04-18T00:00:00Z"}}, {"id": "10.1023/a:1004518730970", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:16:55Z", "type": "Journal Article", "created": "2002-12-21", "description": "Elevated atmospheric CO2 has the potential to change below-ground nutrient cycling and thereby alter the soil-atmosphere exchange of biogenic trace gases. We measured fluxes of CH4 and N2O in trembling aspen (Populus tremuloides Michx.) stands grown in open-top chambers under ambient and twice-ambient CO2 concentrations crossed with \u2018high\u2019 and low soil-N conditions.", "keywords": ["measurement-", "nitrous-oxide", "flux-", "Vascular-Plants", "poplars-", "carbon-dioxide-enrichment", "photosynthesis-", "Nutrition-", "carbon-dioxide: atmospheric-concentration", "stand-growth", "nitrogen-cycle", "michigan-", "methane-: flux-", "soil-", "nitrogen-", "Populus-tremuloides [aspen-] (Salicaceae-)", "carbon-cycle", "methane-production", "soil-fertility", "Salicaceae-: Dicotyledones-", "populus-tremuloides", "cycling-", "Spermatophytes-", "Spermatophyta-", "Plantae-", "biological-activity-in-soil", "Climatology- (Environmental-Sciences)", "Angiosperms-", "Angiospermae-", "Plants-", "gases-", "oxidation-", "forest-soils", "methane-", "04 agricultural and veterinary sciences", "GLOBAL-ECOLOGY", "15. Life on land", "enzyme-activity", "gas-exchange", "nitrous-oxide: emission-", "soil-water", "13. Climate action", "denitrification-", "0401 agriculture", " forestry", " and fisheries", "soil-bacteria", "Dicots-", "efflux-"]}, "links": [{"href": "https://doi.org/10.1023/a:1004518730970"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1023/a:1004518730970", "name": "item", "description": "10.1023/a:1004518730970", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1023/a:1004518730970"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1999-02-01T00:00:00Z"}}, {"id": "10.1029/2010jg001494", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:17:00Z", "type": "Journal Article", "created": "2011-02-03", "title": "Nitrous Oxide Emissions And Isotopic Composition In Urban And Agricultural Systems In Southern California", "description": "[1]\u00a0Nitrous oxide (N2O) is a powerful greenhouse gas increasing in atmospheric mixing ratio and linked to increasing amounts of reactive N in the environment, particularly fertilizer use in agriculture. The consequences of urbanization of agricultural land for global and regional N2O emissions are unclear, due to high spatial and temporal variability of fluxes from different ecosystems and relatively few studies of urban ecosystems. We measured fluxes and the stable isotope composition (\u03b415N and \u03b418O) of N2O over 1 year in urban (ornamental lawns and athletic fields) and agricultural (corn and vegetable fields) ecosystems near Los Angeles, California, United States. We found that urban landscapes (lawns and athletic fields) have annual N2O fluxes equal to or greater than agricultural fields. Fertilization rates of urban landscapes were equal to or greater than agricultural fields, with comparable N2O emissions factors. \u03b415N and \u03b418O of N2O varied widely in all ecosystems, and were not consistent with ecosystem type, season, soil moisture, or temperature. There was, however, a consistent response of \u03b415N-N2O to pulses of N2O emission following fertilization, with an initial depletion in \u03b415N relative to prefertilization values, then gradual enrichment to background values within about 1 week. Preliminary scaling calculations indicated that N2O emissions from urban landscapes are approximately equal to or greater than agricultural emissions in urbanized areas of southern California, which further implies that current estimates of regional N2O emissions (based on agricultural land area) may be too low.", "keywords": ["2. Zero hunger", "long-term", "denitrification", "variability", "methane", "cycle (with supplement)", "04 agricultural and veterinary sciences", "15. Life on land", "carbon-dioxide", "7. Clean energy", "01 natural sciences", "nitrification", "13. Climate action", "11. Sustainability", "global n2o budget", "soil-moisture", "0401 agriculture", " forestry", " and fisheries", "oxygen-exchange", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://escholarship.org/content/qt7q9586fd/qt7q9586fd.pdf"}, {"href": "https://doi.org/10.1029/2010jg001494"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Geophysical%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/2010jg001494", "name": "item", "description": "10.1029/2010jg001494", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/2010jg001494"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-02-04T00:00:00Z"}}, {"id": "10.1038/s41467-017-00192-5", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-22T16:17:05Z", "type": "Journal Article", "created": "2017-08-02", "title": "Zhamanshin astrobleme provides evidence for carbonaceous chondrite and post-impact exchange between ejecta and Earth\u2019s atmosphere", "description": "Abstract

Chemical fingerprints of impacts are usually compromised by extreme conditions in the impact plume, and the contribution of projectile matter to impactites does not often exceed a fraction of per cent. Here we use chromium and oxygen isotopes to identify the impactor and impact-plume processes for Zhamanshin astrobleme, Kazakhstan. \uffce\uffb554Cr values up to 1.54 in irghizites, part of the fallback ejecta, represent the54Cr-rich extremity of the Solar System range and suggest a CI-like chondrite impactor. \uffce\uff9417O values as low as \uffe2\uff88\uff920.22\uffe2\uff80\uffb0 in irghizites, however, are incompatible with a CI-like impactor. We suggest that the observed17O depletion in irghizites relative to the terrestrial range is caused by partial isotope exchange with atmospheric oxygen (\uffce\uff9417O\uffe2\uff80\uff89=\uffe2\uff80\uff89\uffe2\uff88\uff920.47\uffe2\uff80\uffb0) following material ejection. In contrast, combined \uffce\uff9417O\uffe2\uff80\uff93\uffce\uffb554Cr data for central European tektites (distal ejecta) fall into the terrestrial range and neither impactor fingerprint nor oxygen isotope exchange with the atmosphere are indicated.

", "keywords": ["OXYGEN-ISOTOPE COMPOSITION", "NORDLINGER RIES IMPACT", "ORIGIN", "FRACTIONATION", "carbonaceous chondrite; post-impact exchange; ejecta; Earth\u2019s atmosphere", "Science", "Q", "TARGET ROCKS", "[SDU.ASTR.EP] Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]", "551", "01 natural sciences", "Article", "IVORY-COAST TEKTITES", "13. Climate action", "CRATER", "GLASSES", "ELEMENTS", "WATER", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://www.nature.com/articles/s41467-017-00192-5.pdf"}, {"href": "https://doi.org/10.1038/s41467-017-00192-5"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nature%20Communications", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/s41467-017-00192-5", "name": "item", "description": "10.1038/s41467-017-00192-5", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/s41467-017-00192-5"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-08-09T00:00:00Z"}}, {"id": "10.1038/s41467-019-12976-y", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:17:06Z", "type": "Journal Article", "created": "2019-11-01", "title": "Seasonal dynamics of stem N2O exchange follow the physiological activity of boreal trees", "description": "Abstract

The role of trees in the nitrous oxide (N2O) balance of boreal forests has been neglected despite evidence suggesting their substantial contribution. We measured seasonal changes in N2O fluxes from soil and stems of boreal trees in Finland, showing clear seasonality in stem N2O flux following tree physiological activity, particularly processes of CO2 uptake and release. Stem N2O emissions peak during\uffc2\uffa0the vegetation season, decrease rapidly in October, and remain low but significant to the annual totals during winter dormancy. Trees growing on dry soils even turn to consumption of\uffc2\uffa0N2O from the atmosphere during dormancy, thereby reducing their overall N2O emissions. At an\uffc2\uffa0annual scale, pine, spruce and birch are net N2O sources, with spruce being the strongest emitter. Boreal trees thus markedly contribute to the seasonal dynamics of ecosystem N2O exchange, and their species-specific contribution should be included into forest emission inventories.

", "keywords": ["EDDY COVARIANCE", "Science", "Nitrous Oxide", "NITROUS-OXIDE EMISSIONS", "Article", "CO2 EXCHANGE", "Trees", "CARBON-DIOXIDE", "Soil", "METHANE", "Taiga", "CH4 EMISSIONS", "SCOTS PINE", "Ecosystem", "Finland", "Plant Stems", "Atmosphere", "Q", "Forestry", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "FOREST", "Environmental sciences", "SOIL", "PLANT-GROWTH", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Seasons", "Methane"]}, "links": [{"href": "https://www.nature.com/articles/s41467-019-12976-y.pdf"}, {"href": "https://doi.org/10.1038/s41467-019-12976-y"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nature%20Communications", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/s41467-019-12976-y", "name": "item", "description": "10.1038/s41467-019-12976-y", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/s41467-019-12976-y"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-11-01T00:00:00Z"}}, {"id": "10.1038/s41561-018-0212-7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:17:07Z", "type": "Journal Article", "created": "2018-08-22", "title": "Increased water-use efficiency and reduced CO2 uptake by plants during droughts at a continental scale", "description": "Severe droughts in the Northern Hemisphere cause widespread decline of agricultural yield, reduction of forest carbon uptake, and increased CO2 growth rates in the atmosphere. Plants respond to droughts by partially closing their stomata to limit their evaporative water loss, at the expense of carbon uptake by photosynthesis. This trade-off maximizes their water-use efficiency, as measured for many individual plants under laboratory conditions and field experiments. Here we analyze the 13C/12C stable isotope ratio in atmospheric CO2 (reported as \u03b413C) to provide new observational evidence of the impact of droughts on the water-use efficiency across areas of millions of km2 and spanning one decade of recent climate variability. We find strong and spatially coherent increases in water-use efficiency along with widespread reductions of net carbon uptake over the Northern Hemisphere during severe droughts that affected Europe, Russia, and the United States in 2001-2011. The impact of those droughts on water-use efficiency and carbon uptake by vegetation is substantially larger than simulated by the land-surface schemes of six state-of-the-art climate models. This suggests that drought induced carbon-climate feedbacks may be too small in these models and improvements to their vegetation dynamics using stable isotope observations can help to improve their drought response.", "keywords": ["FLUXES", "330", "GRASSLAND", "MODELS", "0207 environmental engineering", "02 engineering and technology", "CARBON-ISOTOPE DISCRIMINATION", "01 natural sciences", "DIOXIDE EXCHANGE", "LEAF", "Life Science", "0105 earth and related environmental sciences", "2. Zero hunger", "[SDU.OCEAN]Sciences of the Universe [physics]/Ocean", "PRODUCTIVITY", "Atmosphere", "[SDU.OCEAN] Sciences of the Universe [physics]/Ocean", " Atmosphere", "PHOTOSYNTHESIS", "15. Life on land", "ATMOSPHERE", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "6. Clean water", "REDUCTION", "13. Climate action", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "environment"]}, "links": [{"href": "https://centaur.reading.ac.uk/78233/1/manuscript_WUE_v20_maintext.pdf"}, {"href": "http://www.nature.com/articles/s41561-018-0212-7.pdf"}, {"href": "https://doi.org/10.1038/s41561-018-0212-7"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nature%20Geoscience", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/s41561-018-0212-7", "name": "item", "description": "10.1038/s41561-018-0212-7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/s41561-018-0212-7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-08-27T00:00:00Z"}}, {"id": "10.1038/s43247-021-00192-w", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:17:10Z", "type": "Journal Article", "created": "2021-06-10", "title": "Carbon dioxide fluxes increase from day to night across European streams", "description": "Abstract

Globally, inland waters emit over 2 Pg of carbon per year as carbon dioxide, of which the majority originates from streams and rivers. Despite the global significance of fluvial carbon dioxide emissions, little is known about their diel dynamics. Here we present a large-scale assessment of day- and night-time carbon dioxide fluxes at the water-air interface across 34 European streams. We directly measured fluxes four times between October 2016 and July 2017 using drifting chambers. Median fluxes are 1.4 and 2.1\uffe2\uff80\uff89mmol\uffe2\uff80\uff89m\uffe2\uff88\uff922 h\uffe2\uff88\uff921 at midday and midnight, respectively, with night fluxes exceeding those during the day by 39%. We attribute diel carbon dioxide flux variability mainly to changes in the water partial pressure of carbon dioxide. However, no consistent drivers could be identified across sites. Our findings highlight widespread day-night changes in fluvial carbon dioxide fluxes and suggest that the time of day greatly influences measured carbon dioxide fluxes across European streams.An altered empirical method to estimate attenuation correction factors in particle flux measurements.

", "keywords": ["SCALAR SIMILARITY", "Environmental sciences", "Physical sciences", "EDDY COVARIANCE METHOD", "DEPOSITION VELOCITIES", "AEROSOL FLUXES", "13. Climate action", "TURBULENCE", "Urbanisation", "SCOTS PINE FOREST", "EXCHANGE", "SOUTHERN FINLAND", "7. Clean energy"]}, "links": [{"href": "http://pubs.rsc.org/en/content/articlepdf/2018/EN/C8EN00501J"}, {"href": "https://doi.org/10.1039/c8en00501j"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Science%3A%20Nano", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1039/c8en00501j", "name": "item", "description": "10.1039/c8en00501j", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1039/c8en00501j"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-01-01T00:00:00Z"}}, {"id": "10.1071/fp14125", "type": "Feature", "geometry": null, "properties": {"license": "unspecified", "updated": "2026-09-22T16:17:19Z", "type": "Journal Article", "created": "2014-12-03", "title": "Intraspecific Variation In Leaf Growth Of Wheat (Triticum Aestivum) Under Australian Grain Free Air Co2 Enrichment (Agface): Is It Regulated Through Carbon And/Or Nitrogen Supply?", "description": "

Underlying physiological mechanisms of intraspecific variation in growth response to elevated CO2 concentration [CO2] were investigated using two spring wheat (Triticum aestivum L.) cultivars: Yitpi and H45. Leaf blade elongation rate (LER), leaf carbon (C), nitrogen (N) in the expanding leaf blade (ELB, sink) and photosynthesis (A) and C and N status in the last fully expanded leaf blade (LFELB, source) were measured. Plants were grown at ambient [CO2] (~384\uffc2\uffb5molmol\uffe2\uff80\uff931) and elevated [CO2] (~550\uffc2\uffb5molmol\uffe2\uff80\uff931) in the Australian Grains Free Air CO2 Enrichment facility. Elevated [CO2] increased leaf area and total dry mass production, respectively, by 42 and 53% for Yitpi compared with 2 and 13% for H45. Elevated [CO2] also stimulated the LER by 36% for Yitpi compared with 5% for H45. Yitpi showed a 99% increase in A at elevated [CO2] but no A stimulation was found for H45. There was a strong correlation (r2=0.807) between LER of the ELB and soluble carbohydrate concentration in LFELB. In ELB, the highest spatial N concentration was observed in the cell division zone, where N concentrations were 67.3 and 60.6mg g\uffe2\uff80\uff931 for Yitpi compared with 51.1 and 39.2mg g\uffe2\uff80\uff931 for H45 at ambient and elevated [CO2]. In contrast, C concentration increased only in the cell division and cell expansion zone of the ELB of Yitpi. These findings suggest that C supply from the source (LFELB) is cultivar dependent and well correlated with LER, leaf area expansion and whole-plant growth response to elevated [CO2].

", "keywords": ["Diurnal regulation of LER", "580", "0106 biological sciences", "0301 basic medicine", "2. Zero hunger", "070303 Crop and Pasture Biochemistry and Physiology", "leaf blade elongation rate", "diurnal regulation of LER", "gas exchange", "Growth analysis", "15. Life on land", "01 natural sciences", "Leaf blade elongation rate", "03 medical and health sciences", "Elevated (CO2)", "elevated [CO2]", "Gas exchange", "growth analysis"]}, "links": [{"href": "https://doi.org/10.1071/fp14125"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Functional%20Plant%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1071/fp14125", "name": "item", "description": "10.1071/fp14125", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1071/fp14125"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-01-01T00:00:00Z"}}, {"id": "10.1088/1748-9326/8/2/025023", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:17:32Z", "type": "Journal Article", "created": "2013-06-27", "title": "Long-Term Increases In Snow Pack Elevate Leaf N And Photosynthesis In Salix Arctica: Responses To A Snow Fence Experiment In The High Arctic Of Nw Greenland", "description": "We examine the influence of altered winter precipitation on a High Arctic landscape with continuous permafrost. Gas exchange, leaf tissue element and isotopic composition (N, \u03b4 ^13 C, \u03b4 ^15 N), and plant water sources derived from stem and soil water \u03b4 ^18 O were examined in Salix arctica (arctic willow) following a decade of snow-fence-enhanced snow pack in NW Greenland. Study plots in ambient and +snow conditions were sampled in summer 2012. Plants experiencing enhanced snow conditions for 10\u00a0years had higher leaf [N], photosynthetic rate, and more enriched leaf \u03b4 ^15 N. Enhanced snow did not influence stomatal conductance or depth of plant water use. We attribute the higher photosynthetic rate in S.\u00a0arctica exposed to deeper snow pack to altered biogeochemical cycles which yielded higher leaf [N] rather than to enhanced water availability. These data demonstrate the complexity of High Arctic plant responses to changes in winter conditions. Furthermore, our data depict the intricate linkages between winter and summer conditions as they regulate processes such as leaf gas exchange that may control water vapor and CO _2 feedbacks between arctic tundra and the surrounding atmosphere.", "keywords": ["0106 biological sciences", "carbon", "Science", "Physics", "QC1-999", "Greenland", "Q", "Salix arctica (arctic willow)", "gas exchange", "15. Life on land", "Environmental technology. Sanitary engineering", "01 natural sciences", "nitrogen", "6. Clean water", "Thule", "Environmental sciences", "13. Climate action", "GE1-350", "TD1-1066", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1088/1748-9326/8/2/025023"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Research%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1088/1748-9326/8/2/025023", "name": "item", "description": "10.1088/1748-9326/8/2/025023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1088/1748-9326/8/2/025023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-06-01T00:00:00Z"}}, {"id": "10.3390/agronomy10081169", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-22T16:19:17Z", "type": "Journal Article", "created": "2020-08-10", "title": "Adaptation to Water and Salt Stresses of Solanum pimpinellifolium and Solanum lycopersicum var. cerasiforme", "description": "

Solanum pimpinellifolium and Solanum lycopersicum var. cerasiforme represent a valuable tool for tomato breeding, particularly for tolerance to abiotic stresses. Water stress and salinity are major constraints to tomato\uffe2\uff80\uff99s cultivation, and for which limited genetic variability has been reported within the cultivated species. We evaluated four accessions of S. pimpinellifolium and four of S. l. var. cerasiforme for their adaptation to water deficit and salinity. The CO2 assimilation rate, stomatal conductance, substomatal CO2 concentration, transpiration rate, and leaf chlorophyll concentration were evaluated, as well as morphological and agronomic traits. The accessions showed a remarkable inter- and intra-species response variability to both stresses. Two S. pimpinellifolium accessions and one S. l. var. cerasiforme showed unaltered physiological parameters, thus indicating a good adaptation to water deficit. Two S. l. var. cerasiforme accessions showed an interesting performance under salt stress, one of which showing also good adaptation to water stress. In general, both stresses showed a negative impact on leaf size and fruit fresh weight, especially in the big-sized fruits. However, flowering, fruit setting and earliness remained unaltered or even improved when compared to control conditions. Stressed plants yielded fruits with higher \uffc2\uffb0 Brix. Response to stresses seemed to be linked to origin environmental conditions, notwithstanding, variability was observed among accessions of the same region.

", "keywords": ["2. Zero hunger", "0301 basic medicine", "Salinity", "abiotic stress", "phenotyping", "S", "Soil Plant Analysis Development (SPAD) chlorophyll measurement", "Agriculture", "gas exchange", "15. Life on land", "F06 Irrigation", "Abiotic stress", "6. Clean water", "salinity", "Tomato wild relatives", "tomato wild relatives", "GENETICA", "03 medical and health sciences", "Phenotyping", "Gas exchange", "F40 Plant ecology", "Water deficit", "water deficit"], "contacts": [{"organization": "Mart\u00ednez-Cuenca, Mary-Rus, Pereira-D\u00edas, Leandro, Soler Aleixandre, Salvador, L\u00f3pez-Serrano, Lidia, Alonso-Mart\u00edn, David, Calatayud, \u00c1ngeles, D\u00edez, Mar\u00eda Jos\u00e9,", "roles": ["creator"]}]}, "links": [{"href": "http://www.mdpi.com/2073-4395/10/8/1169/pdf"}, {"href": "https://www.mdpi.com/2073-4395/10/8/1169/pdf"}, {"href": "https://doi.org/10.3390/agronomy10081169"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agronomy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/agronomy10081169", "name": "item", "description": "10.3390/agronomy10081169", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/agronomy10081169"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-08-10T00:00:00Z"}}, {"id": "10.1093/treephys/22.7.435", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:17:36Z", "type": "Journal Article", "created": "2012-01-20", "title": "Responses Of Deciduous Broadleaf Trees To Defoliation In A Co2 Enriched Atmosphere", "description": "Relatively little is known about the implications of atmospheric CO2 enrichment for tree responses to biotic disturbances such as folivory. We examined the combined effects of elevated CO2 concentration ([CO2]) and defoliation on growth and physiology of sugar maple (Acer saccharum Marsh.) and trembling aspen (Populus tremuloides Michx.). Seedlings were planted in the ground in eight open-top chambers. Four chambers were ventilated with CO2-enriched air (ambient + 283 micromol mol-1) and four chambers were supplied with ambient air. After 6 weeks of growth, half of the leaf area was removed on a subset of seedlings of each species in each CO2 treatment. We monitored subsequent biomass gain and allocation, along with leaf gas exchange and chemistry. Defoliation did not significantly affect final seedling biomass in either species or CO2 treatment. Growth recovery following defoliation was associated with increased allocation to leaf mass in maple and a slight enhancement of mean photosynthesis in aspen. Elevated [CO2] did not significantly affect aspen growth, and the observed stimulation of maple growth was significant only in mid-season. Correspondingly, simulated responses of whole-tree photosynthesis to elevated [CO2] were constrained by a decrease in photosynthetic capacity in maple, and were partially offset by reductions in specific leaf area and biomass allocation to foliage in aspen. There was a significant interaction between [CO2] and defoliation on only a few of the measured traits. Thus, the data do not support the hypothesis that atmospheric CO2 enrichment will substantially alter tree responses to folivory. However, our findings do provide further indication that regeneration-stage growth rates of certain temperate tree species may respond only moderately to a near doubling of atmospheric [CO2].", "keywords": ["defoliation-", "0106 biological sciences", "Ecophysiology", "Quaking aspen", "biomass-allocation", "growth-response", "Growth", "Environmental-Sciences)", "01 natural sciences", "plant-composition", "Trees", "biomass-", "Spermatophyta-", "Biomass", "Photosynthesis", "plant-physiology", "defoliation", "Angiospermae-", "leaf-area", "GLOBAL-ECOLOGY", "seedling-growth", "source-sink-relations", "Populus-tremuloides", "gas-exchange", "Populus", "broadleaves-", "deciduous-tree", "forest-trees", "atmosphere-", "trees-", "biomass-production", "Acer saccharum", "Nitrogen", "Carbohydrates", "Acer", "carbon-dioxide-enrichment", "photosynthesis-", "growth-", "species-differences", "seedlings-", "wisconsin-", "Populus tremuloides", "photosynthesis", "Climatic changes", "Carbon Dioxide", "15. Life on land", "Plant Leaves", "leaves-", "Aceraceae-: Dicotyledones-", "Carbon dioxide", "Sugar maple", "Seedlings", "Terrestrial-Ecology (Ecology-", "Acer-saccharum"], "contacts": [{"organization": "Volin, John C., Kruger, Eric L., Lindroth, Richard L.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1093/treephys/22.7.435"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Tree%20Physiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/treephys/22.7.435", "name": "item", "description": "10.1093/treephys/22.7.435", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/treephys/22.7.435"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2002-05-01T00:00:00Z"}}, {"id": "10.1111/gcb.14935", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:17:49Z", "type": "Journal Article", "created": "2020-01-20", "title": "Origin of volatile organic compound emissions from subarctic tundra under global warming", "description": "Abstract

Warming occurs in the Arctic twice as fast as the global average, which in turn leads to a large enhancement in terpenoid emissions from vegetation. Volatile terpenoids are the main class of biogenic volatile organic compounds (VOCs) that play crucial roles in atmospheric chemistry and climate. However, the biochemical mechanisms behind the temperature\uffe2\uff80\uff90dependent increase in VOC emissions from subarctic ecosystems are largely unexplored. Using 13CO2\uffe2\uff80\uff90labeling, we studied the origin of VOCs and the carbon (C) allocation under global warming in the soil\uffe2\uff80\uff93plant\uffe2\uff80\uff93atmosphere system of contrasting subarctic heath tundra vegetation communities characterized by dwarf shrubs of the genera Salix or Betula. The projected temperature rise of the subarctic summer by 5\uffc2\uffb0C was realistically simulated in sophisticated climate chambers. VOC emissions strongly depended on the plant species composition of the heath tundra. Warming caused increased VOC emissions and significant changes in the pattern of volatiles toward more reactive hydrocarbons. The 13C was incorporated to varying degrees in different monoterpene and sesquiterpene isomers. We found that de novo monoterpene biosynthesis contributed to 40%\uffe2\uff80\uff9344% (Salix) and 60%\uffe2\uff80\uff9368% (Betula) of total monoterpene emissions under the current climate, and that warming increased the contribution to 50%\uffe2\uff80\uff9358% (Salix) and 87%\uffe2\uff80\uff9395% (Betula). Analyses of above\uffe2\uff80\uff90 and belowground 12/13C showed shifts of C allocation in the plant\uffe2\uff80\uff93soil systems and negative effects of warming on C sequestration by lowering net ecosystem exchange of CO2 and increasing C loss as VOCs. This comprehensive analysis provides the scientific basis for mechanistically understanding the processes controlling terpenoid emissions, required for modeling VOC emissions from terrestrial ecosystems and predicting the future chemistry of the arctic atmosphere. By changing the chemical composition and loads of VOCs into the atmosphere, the current data indicate that global warming in the Arctic may have implications for regional and global climate and for the delicate tundra ecosystems.

", "keywords": ["0301 basic medicine", "volatile organic compound", "Volatile Organic Compounds", "0303 health sciences", "tundra", "net ecosystem exchange", "Arctic Regions", "15. Life on land", "global warming", "Primary Research Articles", "Global Warming", "13co2 ; Arctic ; Climate Change ; De Novo Biosynthesis ; Global Warming ; Net Ecosystem Exchange ; Subarctic Heath ; Terpene ; Tundra ; Volatile Organic Compound", "03 medical and health sciences", "Arctic", "climate change", "de novo biosynthesis", "subarctic heath", "13. Climate action", "(CO2)-C-13", "11. Sustainability", "terpene", "Tundra", "Ecosystem"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.14935"}, {"href": "https://doi.org/10.1111/gcb.14935"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/gcb.14935", "name": "item", "description": "10.1111/gcb.14935", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.14935"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-01-20T00:00:00Z"}}, {"id": "10.1111/gcb.15277", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-22T16:17:49Z", "type": "Journal Article", "created": "2020-07-12", "title": "Low phosphorus supply constrains plant responses to elevated CO 2 : A meta\u2010analysis", "description": "Abstract

Phosphorus (P) is an essential macro\uffe2\uff80\uff90nutrient required for plant metabolism and growth. Low P availability could potentially limit plant responses to elevated carbon dioxide (eCO2), but consensus has yet to be reached on the extent of this limitation. Here, based on data from experiments that manipulated both CO2 and P for young individuals of woody and non\uffe2\uff80\uff90woody species, we present a meta\uffe2\uff80\uff90analysis of P limitation impacts on plant growth, physiological, and morphological response to eCO2. We show that low P availability attenuated plant photosynthetic response to eCO2 by approximately one\uffe2\uff80\uff90quarter, leading to a reduced, but still positive photosynthetic response to eCO2 compared to those under high P availability. Furthermore, low P limited plant aboveground, belowground, and total biomass responses to eCO2, by 14.7%, 14.3%, and 12.4%, respectively, equivalent to an approximate halving of the eCO2 responses observed under high P availability. In comparison, low P availability did not significantly alter the eCO2\uffe2\uff80\uff90induced changes in plant tissue nutrient concentration, suggesting tissue nutrient flexibility is an important mechanism allowing biomass response to eCO2 under low P availability. Low P significantly reduced the eCO2\uffe2\uff80\uff90induced increase in leaf area by 14.3%, mirroring the aboveground biomass response, but low P did not affect the eCO2\uffe2\uff80\uff90induced increase in root length. Woody plants exhibited stronger attenuation effect of low P on aboveground biomass response to eCO2 than non\uffe2\uff80\uff90woody plants, while plants with different mycorrhizal associations showed similar responses to low P and eCO2 interaction. This meta\uffe2\uff80\uff90analysis highlights crucial data gaps in capturing plant responses to eCO2 and low P availability. Field\uffe2\uff80\uff90based experiments with longer\uffe2\uff80\uff90term exposure of both CO2 and P manipulations are critically needed to provide ecosystem\uffe2\uff80\uff90scale understanding. Taken together, our results provide a quantitative baseline to constrain model\uffe2\uff80\uff90based hypotheses of plant responses to eCO2 under P limitation, thereby improving projections of future global change impacts.

", "keywords": ["0106 biological sciences", "910", "01 natural sciences", "XXXXXX - Unknown", "soil phosphorus", "Humans", "phosphorus", "Photosynthesis", "mycorrhizae", "soils", "Ecosystem", "0105 earth and related environmental sciences", "580", "nutrient concentration", "2. Zero hunger", "plant morphology", "biomass", "plants", "carbon dioxide", "Phosphorus", "mycorrhizas", "04 agricultural and veterinary sciences", "Carbon Dioxide", "Plants", "15. Life on land", "leaf gas exchange", "meta-analysis", "plant nutrient uptake", "0401 agriculture", " forestry", " and fisheries"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.15277"}, {"href": "https://doi.org/10.1111/gcb.15277"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/gcb.15277", "name": "item", "description": "10.1111/gcb.15277", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.15277"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-07-31T00:00:00Z"}}, {"id": "10.1111/j.1365-2486.2008.01724.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:17:55Z", "type": "Journal Article", "created": "2008-10-15", "title": "Interactive Effects Of Water Table And Precipitation On Net Co2 Assimilation Of Three Co-Occurring Sphagnum Mosses Differing In Distribution Above The Water Table", "description": "Abstract

Sphagnum cuspidatum,S. magellanicumandS. rubellumare three co\uffe2\uff80\uff90occurring peat mosses, which naturally have a different distribution along the microtopographical gradient of the surface of peatlands. We set out an experiment to assess the interactive effects of water table (low: \uffe2\uff88\uff9210\uffe2\uff80\uff83cm and high: \uffe2\uff88\uff921\uffe2\uff80\uff83cm) and precipitation (present or absent) on the CO2assimilation and evaporation of these species over a 23\uffe2\uff80\uff90day period. Additionally, we measured which sections of the moss layer were responsible for light absorption and bulk carbon uptake. Thereafter, we investigated how water content affected carbon uptake by the mosses. Our results show that at high water table, CO2assimilation of all species gradually increased over time, irrespective of the precipitation. At low water table, net CO2assimilation of all species declined over time, with the earliest onset and highest rate of decline forS. cuspidatum. Precipitation compensated for reduced water tables and positively affected the carbon uptake of all species. Almost all light absorption occurred in the first centimeter of theSphagnumvegetation and so did net CO2assimilation. CO2assimilation rate showed species\uffe2\uff80\uff90specific relationships with capitulum water content, with narrow but contrasting optima forS. cuspidatumandS. rubellum. Assimilation byS. magellanicumwas constant at a relatively low rate over a broad range of capitulum water contents. Our study indicates that prolonged drought may alter the competitive balance between species, favoring hummock species over hollow species. Moreover, this study shows that precipitation is at least equally important as water table drawdown and should be taken into account in predictions about the fate of peatlands with respect to climate change.

", "keywords": ["photosynthesis", "tolerance", "biomass", "growth", "exchange", "temperature", "peat bog", "15. Life on land", "fuscum", "01 natural sciences", "6. Clean water", "desiccation", "level", "13. Climate action", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1111/j.1365-2486.2008.01724.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1365-2486.2008.01724.x", "name": "item", "description": "10.1111/j.1365-2486.2008.01724.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-2486.2008.01724.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-02-06T00:00:00Z"}}, {"id": "10.1111/j.1365-3040.2004.01231.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:17:57Z", "type": "Journal Article", "created": "2004-10-06", "title": "Functional Diversity Of Photosynthesis During Drought In A Model Tropical Rainforest - The Contributions Of Leaf Area, Photosynthetic Electron Transport And Stomatal Conductance To Reduction In Net Ecosystem Carbon Exchange", "description": "ABSTRACT

The tropical rainforest mesocosm within the Biosphere 2 Laboratory, a model system of some 110 species developed over 12\uffe2\uff80\uff83years under controlled environmental conditions, has been subjected to a series of comparable drought experiments during 2000\uffe2\uff80\uff932002. In each study, the mesocosm was subjected to a 4\uffe2\uff80\uff936 week drought, with well\uffe2\uff80\uff90defined rainfall events before and after the treatment. Ecosystem CO2 uptake rate (Aeco) declined 32% in response to the drought, with changes occurring within days and being reversible within weeks, even though the deeper soil layers did not become significantly drier and leaf\uffe2\uff80\uff90level water status of most large trees was not greatly affected. The reduced Aeco during the drought reflected both morphological and physiological responses. It is estimated that the drought\uffe2\uff80\uff90induced 32% reduction of Aeco has three principal components: (1) leaf fall increased two\uffe2\uff80\uff90fold whereas leaf expansion growth of some canopy dominants declined to 60%, leading to a 10% decrease in foliage coverage of the canopy. This might be the main reason for the persistent reduction of Aeco after rewatering. (2) The maximum photosynthetic electron transport rate at high light intensities in remaining leaves was reduced to 71% for three of the four species measured, even though no chronic photo\uffe2\uff80\uff90inhibition occurred. (3) Stomata closed, leading to a reduced ecosystem water conductance to water vapour (33% of pre\uffe2\uff80\uff90drought values), which not only reduced ecosystem carbon uptake rate, but may also have implications for water and energy budgets of tropical ecosystems. Additionally, individual rainforest trees responded differently, expressing different levels of stress and stress avoiding mechanisms. This functional diversity renders the individual response heterogeneous and has fundamental implications to scale leaf level responses to ecosystem dynamics.

", "keywords": ["580", "0301 basic medicine", "leaf area", "net ecosystem CO(2) exchange", "photosynthesis", "CLIMATE-CHANGE", "chlorophyll fluorescence", "CANOPY TREE", "drought", "15. Life on land", "6. Clean water", "FRENCH-GUIANA", "03 medical and health sciences", "leaf fall", "tropical trees KeyWords Plus: ATMOSPHERIC CO2 CONCENTRATIONS", "PHOTOSYSTEM-II", "XANTHOPHYLL CYCLE", "WATER-VAPOR", "L LEAVES", "13. Climate action", "leaf growth", "tropical rainforest", "photosynthetic electron transport", "GAS-EXCHANGE"]}, "links": [{"href": "https://doi.org/10.1111/j.1365-3040.2004.01231.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%2C%20Cell%20%26amp%3B%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1365-3040.2004.01231.x", "name": "item", "description": "10.1111/j.1365-3040.2004.01231.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-3040.2004.01231.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-10-01T00:00:00Z"}}, {"id": "10.1111/j.1442-9993.2007.01759.x", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-22T16:17:58Z", "type": "Journal Article", "created": "2007-10-11", "title": "Direct And Indirect Effects Of Climate On Decomposition In Native Ecosystems From Central Argentina", "description": "

Abstract\uffe2\uff80\uff83Climate affects litter decomposition directly through temperature and moisture, determining the ecosystem potential decomposition, and indirectly through its effect on plant community composition and litter quality, determining litter potential decomposition. It would be expected that both the direct and indirect effects of climate on decomposition act in the same direction along gradients of actual evapotranspiration (AET). However, studies from semiarid ecosystems challenge this idea, suggesting that the climatic conditions that favour decomposition activity, and the consequent ecosystem potential decomposition, do not necessarily lead to litter being easier to decompose. We explored the decomposition patterns of four arid to subhumid native ecosystems with different AET in central\uffe2\uff80\uff90western Argentina and we analysed if ecosystem potential decomposition (climatic direct effect), nutrient availability and leaf litter potential decomposition (climatic indirect effect) all increased with AET. In general, the direct effect of climate (AET) on decomposition (i.e. ecosystem potential decomposition), showed a similar pattern to nutrient availability in soils (higher for xerophytic and mountain woodlands and lower for the other ecosystems), but different from the pattern of leaf litter potential decomposition. However, the range of variation in the ecosystem potential decomposition was much higher than the range of variation in litter potential decomposition, indicating that the direct effect of climate on decomposition was far stronger than the indirect effect through litter quality. Our results provide additional experimental evidence supporting the direct control of climate over decomposition, and therefore nutrient cycling. For the ecosystems considered, those with the highest AET are the ecosystems with the highest potential decomposition. But what is more interesting is that our results suggest that the indirect control of climate over decomposition through vegetation characteristics and decomposability does not follow the same trend as the direct effect of climate. This finding has important implications in the prediction of the effects of climate change on semiarid ecosystems.

", "keywords": ["0106 biological sciences", "13. Climate action", "https://purl.org/becyt/ford/1.6", "Gradients", "Arid Ecosystems", "Nutrients", "Litter Quality", "15. Life on land", "Actual Evapotranspiration", "Ionic Exchange Resins", "https://purl.org/becyt/ford/1", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1111/j.1442-9993.2007.01759.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Austral%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1442-9993.2007.01759.x", "name": "item", "description": "10.1111/j.1442-9993.2007.01759.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1442-9993.2007.01759.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-10-10T00:00:00Z"}}, {"id": "10.1111/j.1469-8137.2010.03613.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:17:59Z", "type": "Journal Article", "created": "2011-01-19", "title": "Drought Alters Carbon Fluxes In Alpine Snowbed Ecosystems Through Contrasting Impacts On Graminoids And Forbs", "description": "\u2022 Climate change is predicted to increase the frequency of drought events in alpine ecosystems with the potential to affect carbon turnover. \u2022 We removed intact turfs from a Nardus stricta alpine snowbed community and subjected half of them to two drought events of 8 d duration under controlled conditions. Leachate dissolved organic carbon (DOC) was measured throughout the 6 wk study period, and a (13)CO(2) pulse enabled quantification of fluxes of recent assimilate into shoots, roots and leachate and ecosystem CO(2) exchange. \u2022 The amount of DOC in leachate from droughted cores was 62% less than in controls. Drought reduced graminoid biomass, increased forb biomass, had no effect on bryophytes, and led to an overall decrease in total above-ground biomass compared with controls. Net CO(2) exchange, gross photosynthesis and the amount of (13)CO(2) fixed were all significantly less in droughted turfs. These turfs also retained proportionally more (13)C in shoots, allocated less (13)C to roots, and the amount of dissolved organic (13)C recovered in leachate was 57% less than in controls. \u2022 Our data show that drought events can have significant impacts on ecosystem carbon fluxes, and that the principal mechanism behind this is probably changes in the relative abundance of forbs and grasses.", "keywords": ["0106 biological sciences", "leachate", "Carbon Isotopes", "Nardus stricta", "04 agricultural and veterinary sciences", "Plants", "15. Life on land", "net CO2 exchange", "dissolved organic carbon", "01 natural sciences", "plant diversity", "Carbon", "6. Clean water", "Droughts", "climate change", "13. Climate action", "Snow", "13CO(2)", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Organic Chemicals", "Ecosystem"]}, "links": [{"href": "https://doi.org/10.1111/j.1469-8137.2010.03613.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/New%20Phytologist", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1469-8137.2010.03613.x", "name": "item", "description": "10.1111/j.1469-8137.2010.03613.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1469-8137.2010.03613.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-01-19T00:00:00Z"}}, {"id": "10.1111/nyas.13912", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:18:05Z", "type": "Journal Article", "created": "2018-06-26", "title": "Land-atmospheric feedbacks during droughts and heatwaves: state of the science and current challenges", "description": "Abstract

Droughts and heatwaves cause agricultural loss, forest mortality, and drinking water scarcity, especially when they occur simultaneously as combined events. Their predicted increase in recurrence and intensity poses serious threats to future food security. Still today, the knowledge of how droughts and heatwaves start and evolve remains limited, and so does our understanding of how climate change may affect them. Droughts and heatwaves have been suggested to intensify and propagate via land\uffe2\uff80\uff93atmosphere feedbacks. However, a global capacity to observe these processes is still lacking, and climate and forecast models are immature when it comes to representing the influences of land on temperature and rainfall. Key open questions remain in our goal to uncover the real importance of these feedbacks: What is the impact of the extreme meteorological conditions on ecosystem evaporation? How do these anomalies regulate the atmospheric boundary layer state (event self\uffe2\uff80\uff90intensification) and contribute to the inflow of heat and moisture to other regions (event self\uffe2\uff80\uff90propagation)? Can this knowledge on the role of land feedbacks, when available, be exploited to develop geo\uffe2\uff80\uff90engineering mitigation strategies that prevent these events from aggravating during their early stages? The goal of our perspective is not to present a convincing answer to these questions, but to assess the scientific progress to date, while highlighting new and innovative avenues to keep advancing our understanding in the future.

", "keywords": ["Hot Temperature", "Climate Change", "drought", "SOIL-MOISTURE", "01 natural sciences", "CARBON-DIOXIDE", "heatwave", "SURFACE EVAPORATION", "CLIMATE EXTREMES", "Humans", "drought; heatwave; land feedback; land\u2013atmospheric interactions", "land feedback", "land\u2013atmospheric interactions", "SAHEL CLIMATE", "Ecosystem", "HEAT-WAVE", "0105 earth and related environmental sciences", "2. Zero hunger", "Agriculture", "Models", " Theoretical", "15. Life on land", "FOREST", "6. Clean water", "Droughts", "SUMMER", "WATER-VAPOR", "13. Climate action", "Earth and Environmental Sciences", "land-atmospheric interactions", "GRASSLAND ENERGY-EXCHANGE", "Perspectives"]}, "links": [{"href": "https://nyaspubs.onlinelibrary.wiley.com/doi/pdf/10.1111/nyas.13912"}, {"href": "https://doi.org/10.1111/nyas.13912"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Annals%20of%20the%20New%20York%20Academy%20of%20Sciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/nyas.13912", "name": "item", "description": "10.1111/nyas.13912", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/nyas.13912"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-06-25T00:00:00Z"}}, {"id": "10.1111/nph.17365", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-22T16:18:05Z", "type": "Journal Article", "created": "2021-03-29", "title": "New insight to the role of microbes in the methane exchange in trees: evidence from metagenomic sequencing", "description": "Summary

Methane (CH4) exchange in tree stems and canopies and the processes involved are among the least understood components of the global CH4 cycle. Recent studies have focused on quantifying tree stems as sources of CH4 and understanding abiotic CH4 emissions in plant canopies, with the role of microbial in situ CH4 formation receiving less attention. Moreover, despite initial reports revealing CH4 consumption, studies have not adequately evaluated the potential of microbial CH4 oxidation within trees. In this paper, we discuss the current level of understanding on these processes. Further, we demonstrate the potential of novel metagenomic tools in revealing the involvement of microbes in the CH4 exchange of plants, and particularly in boreal trees. We detected CH4\uffe2\uff80\uff90producing methanogens and novel monooxygenases, potentially involved in CH4 consumption, in coniferous plants. In addition, our field flux measurements from Norway spruce (Picea abies) canopies demonstrate both net CH4 emissions and uptake, giving further evidence that both production and consumption are relevant to the net CH4 exchange. Our findings, together with the emerging diversity of novel CH4\uffe2\uff80\uff90producing microbial groups, strongly suggest microbial analyses should be integrated in the studies aiming to reveal the processes and drivers behind plant CH4 exchange.

", "keywords": ["0301 basic medicine", "330", "ta1172", "metaani", "bakteerit", "Trees", "03 medical and health sciences", "boreal forests", "Ymp\u00e4rist\u00f6tiede", "2. Zero hunger", "0303 health sciences", "Norway", "ta1183", "kasvifysiologia", "puut (kasvit)", "genomiikka", "15. Life on land", "ta4112", "methanogenic archaea", "mets\u00e4t", "plant microbiome", "tree", "methane exchange", "boreaalinen vy\u00f6hyke", "mikrobisto", "13. Climate action", "Environmental Science", "aineiden kierto", "Metagenomics", "methanotrophic bacteria", "arkeonit", "Methane", "captured metagenomics"]}, "links": [{"href": "https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.17365"}, {"href": "https://doi.org/10.1111/nph.17365"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/New%20Phytologist", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/nph.17365", "name": "item", "description": "10.1111/nph.17365", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/nph.17365"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-05-02T00:00:00Z"}}, {"id": "10.1111/nph.20401", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:18:05Z", "type": "Journal Article", "created": "2025-01-17", "title": "Insights into the subdaily variations in methane, nitrous oxide and carbon dioxide fluxes from upland tropical tree stems", "description": "Summary

Recent studies have shown that stem fluxes, although highly variable among trees, can alter the strength of the methane (CH4) sink or nitrous oxide (N2O) source in some forests, but the patterns and magnitudes of these fluxes remain unclear. This study investigated the drivers of subdaily and seasonal variations in stem and soil CH4, N2O and carbon dioxide (CO2) fluxes.

CH4, N2O and CO2 fluxes were measured continuously for 19\uffe2\uff80\uff89months in individual stems of two tree species, Eperua falcata (Aubl.) and Lecythis poiteaui (O. Berg), and surrounding soils using an automated chamber system in an upland tropical forest. Subdaily variations in these fluxes were related to environmental and stem physiological (sap flow and stem diameter variations) measurements under contrasting soil water conditions.

The results showed that physiological and climatic drivers only partially explained the subdaily flux variations. Stem CH4 and CO2 emissions and N2O uptake varied with soil water content, time of day and between individuals. Stem fluxes decoupled from soil fluxes.

Our study contributes to understanding the regulation of stem greenhouse gas fluxes. It suggests that additional variables (e.g. internal gas concentrations, wood\uffe2\uff80\uff90colonising microorganisms, wood density and anatomy) may account for the remaining unexplained variability in stem fluxes, highlighting the need for further studies.

This article differentiates between descriptive and explanatory factors to develop a typology and a theory of stakeholder and public engagement. The typology describes different types of public and stakeholder engagement, and the theory comprises four factors that explain much of the variation in outcomes (for the natural environment and/or for participants) between different types of engagement. First, we use a narrative literature search to develop a new typology of stakeholder and public engagement based on agency (who initiates and leads engagement) and mode of engagement (from communication to coproduction). We then propose a theory to explain the variation in outcomes from different types of engagement: (1) a number of socioeconomic, cultural, and institutional contextual factors influence the outcomes of engagement; (2) there are a number of process design factors that can increase the likelihood that engagement leads to desired outcomes, across a wide range of sociocultural, political, economic, and biophysical contexts; (3) the effectiveness of engagement is significantly influenced by power dynamics, the values of participants, and their epistemologies, that is, the way they construct knowledge and which types of knowledge they consider valid; and (4) engagement processes work differently and can lead to different outcomes when they operate over different spatial and temporal scales. We use the theoretical framework to provide practical guidance for those designing engagement processes, arguing that a theoretically informed approach to stakeholder and public engagement has the potential to markedly improve the outcomes of environmental decision\uffe2\uff80\uff90making processes.