{"type": "FeatureCollection", "features": [{"id": "10.1111/gcb.12039", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:17:32Z", "type": "Journal Article", "created": "2012-09-25", "title": "Tree Species Diversity Interacts With Elevated Co2to Induce A Greater Root System Response", "description": "Abstract<p>As a consequence of land\uffe2\uff80\uff90use change and the burning of fossil fuels, atmospheric concentrations of CO2 are increasing and altering the dynamics of the carbon cycle in forest ecosystems. In a number of studies using single tree species, fine root biomass has been shown to be strongly increased by elevated CO2. However, natural forests are often intimate mixtures of a number of co\uffe2\uff80\uff90occurring species. To investigate the interaction between tree mixture and elevated CO2, Alnus glutinosa, Betula pendula and Fagus sylvatica were planted in areas of single species and a three species polyculture in a free\uffe2\uff80\uff90air CO2 enrichment study (BangorFACE). The trees were exposed to ambient or elevated CO2 (580\uffc2\uffa0\uffce\uffbcmol\uffc2\uffa0mol\uffe2\uff88\uff921) for 4\uffc2\uffa0years. Fine and coarse root biomass, together with fine root turnover and fine root morphological characteristics were measured. Fine root biomass and morphology responded differentially to the elevated CO2 at different soil depths in the three species when grown in monocultures. In polyculture, a greater response to elevated CO2 was observed in coarse roots to a depth of 20\uffc2\uffa0cm, and fine root area index to a depth of 30\uffc2\uffa0cm. Total fine root biomass was positively affected by elevated CO2 at the end of the experiment, but not by species diversity. Our data suggest that existing biogeochemical cycling models parameterized with data from species grown in monoculture may be underestimating the belowground response to global change.</p>", "keywords": ["0106 biological sciences", "570", "fine roots", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "Plant Roots", "01 natural sciences", "free-air CO2 enrichment", "Trees", "mixture", "Polyculture", "Temperate forest", "monoculture", "Species Specificity", "13. Climate action", "temperate forest", "Mixture", "Monoculture", "polyculture", "0401 agriculture", " forestry", " and fisheries", "Free-air CO2 enrichment", "Fine roots", "Biomass"]}, "links": [{"href": "https://doi.org/10.1111/gcb.12039"}, {"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.12039", "name": "item", "description": "10.1111/gcb.12039", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.12039"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-11-01T00:00:00Z"}}, {"id": "ftinraparis:oai:HAL:hal-04484869v1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:26:24Z", "type": "Report", "title": "Compte-rendu final de projet Feder AgroEcoDiv T2", "description": "Les chercheurs INRAE du consortium AgroEcoDiv 2021-2023 aux c\u00f4t\u00e9s du Cirad et de l'Universit\u00e9 des Antilles, ont r\u00e9alis\u00e9 des exp\u00e9rimentations et mis en place des dispositifs de coconception d'innovations afin d'amplifier la transition agro\u00e9cologique de la petite agriculture familiale, en particulier dans les agro\u00e9cosyst\u00e8mes polyculture-\u00e9levage, en faisant 2 choix m\u00e9thodologiques originaux. Premi\u00e8rement, le challenge de coconcevoir avec les agriculteurs pour plus d'impact a \u00e9t\u00e9 relev\u00e9 (cr\u00e9ation de la ferme exp\u00e9rimentale Kreyol'Inov, dispositif en recherche intervention du Nord Grande-Terre). Au-del\u00e0 de la compr\u00e9hension des processus \u00e9cologiques et des interactions entre les compartiments de l'agro\u00e9cosyst\u00e8me propres \u00e0 l'agro\u00e9cologie, il a fallu aussi appr\u00e9hender un degr\u00e9 de complexit\u00e9 suppl\u00e9mentaire en mettant l'humain au c\u0153ur des innovations. Deuxi\u00e8mement, mission a \u00e9t\u00e9 confi\u00e9e \u00e0 la recherche (particuli\u00e8rement \u00e0 INRAE Porteur du projet) de pratiquer une gouvernance participative pour d\u00e9finir les priorit\u00e9s avec les acteurs de l'agriculture et mieux embrasser leurs volont\u00e9s de changement. Cette posture transdisciplinaire entre les Sciences et la Soci\u00e9t\u00e9 (monde agricole au sens large) a induit une \u00e9volution du projet au fil des interactions internes et externes et la gouvernance du projet est devenue un objet de recherche.", "keywords": ["recherche intervention", "[SDV] Life Sciences [q-bio]", "recherche participative", "agriculture familiale", "guadeloupe", "[SDV]Life Sciences [q-bio]", "polyculture-\u00e9levage", "[SHS] Humanities and Social Sciences", "Transition agro\u00e9cologique", "[SHS]Humanities and Social Sciences"], "contacts": [{"organization": "Mandonnet, Nathalie", "roles": ["creator"]}]}, "links": [{"href": "https://hal.inrae.fr/hal-04484869/file/Rapport_final_AED2_INRAE_28-02-2024.pdf"}, {"href": "https://doi.org/ftinraparis:oai:HAL:hal-04484869v1"}, {"rel": "self", "type": "application/geo+json", "title": "ftinraparis:oai:HAL:hal-04484869v1", "name": "item", "description": "ftinraparis:oai:HAL:hal-04484869v1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/ftinraparis:oai:HAL:hal-04484869v1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-01-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Polyculture&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Polyculture&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Polyculture&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Polyculture&offset=2", "hreflang": "en-US"}], "numberMatched": 2, "numberReturned": 2, "distributedFeatures": [], "timeStamp": "2026-09-22T03:00:07.904590Z"}