{"type": "FeatureCollection", "features": [{"id": "10.1007/s11104-015-2552-z", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:14:54Z", "type": "Journal Article", "created": "2015-06-16", "title": "Plant tolerance of ammonium varies between co-existing Mediterranean species", "description": "Previous studies showed that the two main Mediterranean plant functional groups, summer semi-deciduous and evergreen sclerophylls, differ in soil characteristics and nitrate (NO3 \u2212) use strategies: even though summer semi-deciduous plants have higher NO3 \u2212 availability than evergreen sclerophylls, NO3 \u2212 reduction (i.e., nitrate reductase activity\u2014NRA) is lower, and is not stimulated by substrate (NO3 \u2212 ) availability. Test if in Cistus albidus plants, a summer semi-deciduous species, ammonium (NH4 + ) can inhibit NRA, despite the availability of NO3 \u2212 , and whether Olea europaea plants, evergreen sclerophyll, are more tolerant of NH4 + than the former. One-year-old C. albidus and wild O. europaea potted plants were supplied with both NH4 + and NO3 \u2212 at increasing levels (0.1; 0.2; 0.4; 0.8 and 1.6\u00a0% N). Tolerance of NH4 + was evaluated using integrative (mortality and biomass accumulation) and plant nitrogen metabolism parameters (in vitro NRA and concentrations of NO3 \u2212 and NH4 +) determined in roots and leaves. C. albidus plants were consistently less NH4 + tolerant than O. europaea, displaying: higher mortality; growth and NRA inhibition and NH4 + accumulation above 0.2\u00a0% NH4NO3-N in the soil. In contrast, O. europaea plants seemed to buffer the full range of tested NH4NO3 levels. C. albidus plants were less NH4 + tolerant than O. europaea. The ecological implications of this contrasting NH4 + tolerance are discussed.", "keywords": ["ammonium", "NRA", "0301 basic medicine", "0303 health sciences", "03 medical and health sciences", "Cistus albidus", "partitioning", "Mediterranean", "root shoot", "15. Life on land", "Olea europaea", "6. Clean water"]}, "links": [{"href": "http://link.springer.com/content/pdf/10.1007/s11104-015-2552-z"}, {"href": "https://doi.org/10.1007/s11104-015-2552-z"}, {"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/s11104-015-2552-z", "name": "item", "description": "10.1007/s11104-015-2552-z", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-015-2552-z"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-06-17T00:00:00Z"}}, {"id": "10.1016/j.eja.2012.03.002", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:15:32Z", "type": "Journal Article", "created": "2012-04-04", "title": "Changes Of Soil Properties And Tree Performance Induced By Soil Management In A High-Density Olive Orchard", "description": "Abstract Long-term effects of plant covers on yield and oil quality in olive orchards are poorly known. We compared performance of Olea europaea trees grown under either tillage (CT) or permanent natural cover (NC) in a sandy-loam soil over five years and determined changes in soil properties. The soil was tilled from the year of planting until the end of the second growing season, when both soil management treatments were established. The CT treatment was kept weed-free using a harrow with vertical blades (0.10\u00a0m depth), whereas the NC was obtained by letting the natural flora grow. Trees were fully irrigated until year 3 after planting, when deficit irrigation (about 50% of full) was started for both soil treatments. Trunk cross sectional area (TCSA) of NC trees was 77 and 87% to that of CT trees at the end of the 2006 and 2010 growing seasons, respectively. Fruit yield and oil yield of NC trees were 65 and 69% to those of CT ones, respectively (means of five years), however, when expressed on a TCSA basis, they resulted 87 and 95%, respectively. The fruit number of NC trees was lower than CT ones, whereas the oil content was similar. There were no differences in free acidity, peroxide value, spectrophotometric indexes, and fatty acid composition, but phenolic concentrations of the NC treatment were slightly higher than those of CT oils. Soil macroporosity in the topsoil was 5.2 and 2% for the NC and CT treatments, respectively. Water infiltration rate in CT plots was lower than in NC ones because of soil surface crusting; NC had higher values of total organic carbon and total extractable carbon than CT, whereas the humic carbon content was unaffected.", "keywords": ["Olea europaea L.; Oil quality; Plant cover; Soil macroporosity; Tillage; Water infiltration.", "2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.eja.2012.03.002"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/European%20Journal%20of%20Agronomy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.eja.2012.03.002", "name": "item", "description": "10.1016/j.eja.2012.03.002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.eja.2012.03.002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-08-01T00:00:00Z"}}, {"id": "10.1016/j.eja.2022.126597", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:15:33Z", "type": "Journal Article", "created": "2022-08-05", "title": "Effects of herbaceous covers and mineral fertilizers on the nutrient stocks and fluxes in a Mediterranean olive grove", "description": "The preservation of nutrient capital, soil fertility, and carbon (C) sequestration capacity in Mediterranean olive groves requires evaluation of agricultural practices beyond short-term productivity. We aim to contribute with a mechanistic understanding on the effects that the preservation of herbaceous cover and the use of chemical fertilizers have on the performance of olive trees and on the biogeochemical cycles of the agroecosystem. We compared nutrient fluxes and aboveground leafy stocks in an olive grove that had been organically managed for more than 60 years, in a treatment in which the annual spontaneous herbaceous cover was maintained (H), and after two years of shift to conventional management treatments in which the growth of herbaceous vegetation was avoided by the use of herbicides (NH), and where exclusion of the herbaceous cover is also combined with the supply of mineral fertilizers (NHF). Maintenance of herbaceous vegetation in H contributed to the retention of a high aboveground capital of C and nutrients, particularly nitrogen, (N), phosphorus (P) and potassium (K) that were about 2.9, 3.9 and 7.4 times greater than in NH, respectively. The permanence of herbaceous cover stimulated olive tree leaf litter decomposition rates by about 86 % and increased nutrient release. However, the H treatment led to a 37 % decrease in olive yield and lowered olive foliar N and P content as negative short-term effects. The addition of fertilizers (N, P, K, and Mg) in mineral and solid form in NHF resulted inefficient to improve olive tree nutritional status and olive production, and decelerated olive tree litter decomposition rates by 21 % and nutrient release. The nutrient retention in organic forms in the fast-growing species of herbaceous covers and the progressive nutrient release as litter decomposes may contribute to regulate and better adapt nutrient availability to the nutrient requirements of olive trees.", "keywords": ["2. Zero hunger", "Agroecosistemas", "Cubierta vegetal", "Agroecosystem", "Litter decomposition", "Sustainable agriculture", "Microclimate amelioration", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Agricultura sostenible", "Nutritional status", "Weed cover", "13. Climate action", "Olive production", "Abonos inorg\u00e1nicos", "0401 agriculture", " forestry", " and fisheries", "Olea europaea", "Hojarasca", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.eja.2022.126597"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/European%20Journal%20of%20Agronomy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.eja.2022.126597", "name": "item", "description": "10.1016/j.eja.2022.126597", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.eja.2022.126597"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-10-01T00:00:00Z"}}, {"id": "10.1016/j.still.2014.07.010", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:16:25Z", "type": "Journal Article", "created": "2014-07-31", "title": "Influence Of Soil Management On Soil Physical Characteristics And Water Storage In A Mature Rainfed Olive Orchard", "description": "Mechanical tillage represents the most common technique of soil management in olive orchards within the Mediterranean Basin. Such practice may result in soil structure degradation which can significantly reduce water infiltration causing runoff and erosion processes. An alternative opportunity is given by the use of cover crops which eliminates most of the disadvantages of conventional tillage. An experiment was carried out from 2007 to 2009 in a mature and rainfed olive grove located in Southern Italy with the aim to evaluate the effect of different soil management techniques on soil structure and soil water content and storage along the profile. The experimental site was characterised by a slope gradient ranging from 0 to 16%. Since 2000, the olive grove was subjected to two different management systems: sustainable system, SS (no-tillage, spontaneous vegetation cover, annual recycling of pruning material) and conventional system, CS (tillage, no recycling of pruning material). Modifications of soil structure induced by the two different management systems were quantified by micromorphometric analysis of macroporosity. Soil hydrological behavior was determined by field saturated hydraulic conductivity (Ksat) measurements. Soil water content was measured at 10/15-day intervals by gypsum resistivity blocks placed in flat and steep areas (summit, backslope, and footslope) of both systems at different soil depths (25, 50, 75, 100, 150 and 200\u00a0cm). In the SS soil macroporosity was not very high (about 10%) but homogeneously distributed along the profile which favored the vertical water movement down to deeper horizons. In the CS the occurrence of soil crusting and of compacted layers along the profile hindered infiltration and percolation of rainfall water influencing the soil water content below the 100\u00a0cm layer. The SS was able to better store water from rainfall, received during the autumn\u2013winter period, especially in the deepest soil layer (from 100 to 200\u00a0cm). This was evident especially in the steep area at the summit position, where the water amounts stored by SS were 45 and 17% higher than those retained by the CS in 2007 and 2009, respectively. During summer such reserves were available for the olive root systems which usually, under the driest conditions, explore the deep soil zone in search of water. Under our experimental conditions, no yield reduction was observed due to the prompt mowing of the spontaneous cover crops. Therefore, the suitable use of cover crops should be communicated to the olive farmers and strongly recommended within agricultural policy strategies for its evident agronomical and environmental benefits (increase of soil organic carbon, soil structure improvement, reduction of soil and water losses, carbon sequestration).", "keywords": ["2. Zero hunger", "Soil macroporosity", "Cover crops", "Olea europaea; Cover crops; Soil water storage; Soil macroporosity; Saturated hydraulic conductivity", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Saturated hydraulic conductivity", "6. Clean water", "12. Responsible consumption", "Soil water storage", "0401 agriculture", " forestry", " and fisheries", "Olea europaea", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2014.07.010"}, {"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.2014.07.010", "name": "item", "description": "10.1016/j.still.2014.07.010", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2014.07.010"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-12-01T00:00:00Z"}}, {"id": "10.1111/aab.12599", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:17:29Z", "type": "Journal Article", "created": "2020-04-28", "title": "Coexistent Mediterranean woody species as a driving factor of Phytophthora cinnamomi infectivity and survival", "description": "Abstract

The long\uffe2\uff80\uff90term conservation of Mediterranean mixed oak forests is seriously threatened by the massive mortality of Quercus suber caused by the exotic pathogen Phytophthora cinnamomi. This species frequently grows in mixed forests under natural conditions, but nothing is known about how its level of disease might be altered by the diversity and identity of coexisting neighbours varying in susceptibility to the exotic pathogen. Here we analysed the individual and combined effects of Q. suber and the main coexisting tree species (Quercus canariensis and Olea europaea subsp. europaea var. sylvestris) in mixed forests of southern Spain on the production of infective and survival spores of P. cinnamomi. Through in vitro experiments, it was demonstrated that mixtures of Q. suber and Q. canariensis highly stimulated the production of P. cinnamomi zoospores in comparison with both species in monocultures. Olea europaea did not stimulate zoospore production. Under controlled conditions, the initial and final densities of inoculum in soil planted with monocultures of O. europaea and Q. canariensis did not differ. However, inoculum densities significantly decreased along the experiment in Q. suber mixtures with O. europaea and Q. canariensis. Phytophthora cinnamomi was able to infect and cause root rot symptoms on all tree species, including O. europaea var. sylvestris. We concluded that mixed stands of Q. suber and Q. canariensis are able to stimulate P. cinnamomi infectivity and survival much more than monospecific stands, and consequently under favourable conditions for root disease development, the coexistence of Q. suber and Q. canariensis might exacerbate Mediterranean forests decline. This study also constitutes the first report of O. europaea var. sylvestris as host and inductor of P. cinnamomi sporulation under controlled conditions.

", "keywords": ["0301 basic medicine", "Europaea var", "0303 health sciences", "03 medical and health sciences", "Quercus suber", "olea europaea subsp", "Quercus canariensis", "Sylvestris", "Olea europaea subsp. europaea var. sylvestris", " Phytophthora interactions", " Quercus canariensis", " Quercus suber", " soil pathogens", "Phytophthora interactions", "15. Life on land", "Soil pathogens"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/aab.12599"}, {"href": "https://doi.org/10.1111/aab.12599"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Annals%20of%20Applied%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/aab.12599", "name": "item", "description": "10.1111/aab.12599", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/aab.12599"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-05-05T00:00:00Z"}}, {"id": "10.3389/fpls.2016.02042", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:19:17Z", "type": "Journal Article", "created": "2017-02-08", "description": "The soil amendment with organic wastes represents a way to increase the soil fertility and the organic carbon (C) stored in the agro-ecosystems. Among the organic waste materials produced by agricultural and industrial activities, olive mill wastes derived from the olive oil extraction process may represent a suitable soil amendment. The aim of the study was to evaluate the effect of fresh (SOMW) or composted mixture of SOMW and shredded olive tree prunings (C-SOMW+P) on the vegetative and productive activities of olive trees, on the C stored in the tree non-permanent structures (prunings and fruits) and in the soil. The plots treated with SOMW or C-SOMW+P showed higher vegetative and productive activities than the untreated plots, and this was attributed to the higher total N and availability of P and K supplied by the amendments. Consequently, treatments increased the C sequestered in the tree non-permanent structures than in the control trees. However, no significant different effect between SOMW and C-SOMW+P treatments was found for the C stored in prunings and fruits, whereas it was evident a stronger influence of C-SOMW+P than SOMW on soil C sequestration. Indeed, about 50% the C supplied by the treatment with C-SOMW+P was sequestered in the olive grove system, with more than 90% of the sequestered C stored into the soil. The low amount of C sequestered in the soil following the addition of SOMW was attributed to its richness of moisture and easily degradable compounds that triggered the mineralization processes controlled by the soil microbial community. Although the 8 years of amendment produced a higher fruit yields than the control, no difference occurred between the characteristics and the oil content of the olive fruits. Only the total phenol content for the oil obtained from the SOMW-treated plots was significantly higher. The other considered fruit characteristics did not show significant differences.", "keywords": ["2. Zero hunger", "Olea europaea L.", "soil fertility", "Plant Science", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "12. Responsible consumption", "C sequestration", "Olea europaea L.", " organic waste", " agro-ecosystem", " C sequestration", " soil fertility", "0401 agriculture", " forestry", " and fisheries", "agro-ecosystem", "organic waste", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://research.unipg.it/bitstream/11391/1400156/2/fpls-07-02042%20%285%29.pdf"}, {"href": "https://doi.org/10.3389/fpls.2016.02042"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Frontiers%20in%20Plant%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3389/fpls.2016.02042", "name": "item", "description": "10.3389/fpls.2016.02042", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3389/fpls.2016.02042"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-01-09T00:00:00Z"}}, {"id": "10532/6053", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:22:11Z", "type": "Journal Article", "created": "2022-08-05", "title": "Effects of herbaceous covers and mineral fertilizers on the nutrient stocks and fluxes in a Mediterranean olive grove", "description": "The preservation of nutrient capital, soil fertility, and carbon (C) sequestration capacity in Mediterranean olive groves requires evaluation of agricultural practices beyond short-term productivity. We aim to contribute with a mechanistic understanding on the effects that the preservation of herbaceous cover and the use of chemical fertilizers have on the performance of olive trees and on the biogeochemical cycles of the agroecosystem. We compared nutrient fluxes and aboveground leafy stocks in an olive grove that had been organically managed for more than 60 years, in a treatment in which the annual spontaneous herbaceous cover was maintained (H), and after two years of shift to conventional management treatments in which the growth of herbaceous vegetation was avoided by the use of herbicides (NH), and where exclusion of the herbaceous cover is also combined with the supply of mineral fertilizers (NHF). Maintenance of herbaceous vegetation in H contributed to the retention of a high aboveground capital of C and nutrients, particularly nitrogen, (N), phosphorus (P) and potassium (K) that were about 2.9, 3.9 and 7.4 times greater than in NH, respectively. The permanence of herbaceous cover stimulated olive tree leaf litter decomposition rates by about 86 % and increased nutrient release. However, the H treatment led to a 37 % decrease in olive yield and lowered olive foliar N and P content as negative short-term effects. The addition of fertilizers (N, P, K, and Mg) in mineral and solid form in NHF resulted inefficient to improve olive tree nutritional status and olive production, and decelerated olive tree litter decomposition rates by 21 % and nutrient release. The nutrient retention in organic forms in the fast-growing species of herbaceous covers and the progressive nutrient release as litter decomposes may contribute to regulate and better adapt nutrient availability to the nutrient requirements of olive trees.", "keywords": ["2. Zero hunger", "Agroecosistemas", "Cubierta vegetal", "Agroecosystem", "Litter decomposition", "Sustainable agriculture", "Microclimate amelioration", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Agricultura sostenible", "Nutritional status", "Weed cover", "13. Climate action", "Olive production", "Abonos inorg\u00e1nicos", "0401 agriculture", " forestry", " and fisheries", "Olea europaea", "Hojarasca", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10532/6053"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/European%20Journal%20of%20Agronomy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10532/6053", "name": "item", "description": "10532/6053", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10532/6053"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-10-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Olea+europaea&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=Olea+europaea&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=Olea+europaea&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Olea+europaea&offset=7", "hreflang": "en-US"}], "numberMatched": 7, "numberReturned": 7, "distributedFeatures": [], "timeStamp": "2026-09-22T01:48:30.999251Z"}