{"type": "FeatureCollection", "features": [{"id": "10.1016/j.foreco.2022.120355", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-31T06:57:09Z", "type": "Journal Article", "created": "2022-06-22", "title": "Do mycorrhizal symbionts drive latitudinal trends in photosynthetic carbon use efficiency and carbon sequestration in boreal forests?", "description": "There is evidence that carbon fluxes and stocks decrease with increasing latitude in boreal forests, suggesting a reduction in carbon use efficiency. While vegetation and soil carbon dynamics have been widely studied, the empirical finding that ectomycorrhizal fungi (ECM) become more abundant towards the north has not been quantitatively linked to carbon use efficiency. We formulated a conceptual model of combined fine-root and ECM carbon use efficiency (CUE) as NPP/GPP (net primary production/gross primary production). For this, we included the mycorrhiza as gains in plant NPP but considered the extramatrical hyphae as well as exudates as losses. We quantified the carbon processes across a latitudinal gradient using published eco-physiological and morphological measurements from boreal coniferous forests. In parallel, we developed two CUE models using large-scale empirical measurements amended with established models. All models predicted similar latitudinal trends in vegetation CUE and net ecosystem production (NEP). CUE in the ECM model declined on average by 0.1 from latitude 60 to 70 with overall mean 0.390 +/- 0.037. NEP declined by 200 g m(-2) yr(-1) with mean 171 +/- 79.4 g m(-2) yr(-)(1). ECM had no significant effect on predicted soil carbon. Our findings suggest that ECM can use a significant proportion of the carbon assimilated by vegetation and hence be an important driver of the decline in CUE at higher latitudes. Our model suggests the quantitative contribution of ECM to soil carbon to be less important but any possible implications through litter quality remain to be assessed. The approach provides a simple proxy of ECM processes for regional C budget models and estimates.", "keywords": ["Soil C balance", "570", "550", "Forest Science", "hiilen kierto", "Carbon residence time", "Carbon use efficiency", "Forestry", "Carbon allocation", "hiilensidonta", "15. Life on land", "ta4112", "13. Climate action", "maaper\u00e4geologia", "Net ecosystem production", "Soil C:N ratio", "Mycorrhiza", "Model"]}, "links": [{"href": "https://pub.epsilon.slu.se/31150/1/makela-a-et-al-20230622.pdf"}, {"href": "https://doi.org/10.1016/j.foreco.2022.120355"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2022.120355", "name": "item", "description": "10.1016/j.foreco.2022.120355", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2022.120355"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-09-01T00:00:00Z"}}, {"id": "10138/570094", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-31T07:05:07Z", "type": "Journal Article", "created": "2022-06-22", "title": "Do mycorrhizal symbionts drive latitudinal trends in photosynthetic carbon use efficiency and carbon sequestration in boreal forests?", "description": "There is evidence that carbon fluxes and stocks decrease with increasing latitude in boreal forests, suggesting a reduction in carbon use efficiency. While vegetation and soil carbon dynamics have been widely studied, the empirical finding that ectomycorrhizal fungi (ECM) become more abundant towards the north has not been quantitatively linked to carbon use efficiency. We formulated a conceptual model of combined fine-root and ECM carbon use efficiency (CUE) as NPP/GPP (net primary production/gross primary production). For this, we included the mycorrhiza as gains in plant NPP but considered the extramatrical hyphae as well as exudates as losses. We quantified the carbon processes across a latitudinal gradient using published eco-physiological and morphological measurements from boreal coniferous forests. In parallel, we developed two CUE models using large-scale empirical measurements amended with established models. All models predicted similar latitudinal trends in vegetation CUE and net ecosystem production (NEP). CUE in the ECM model declined on average by 0.1 from latitude 60 to 70 with overall mean 0.390 +/- 0.037. NEP declined by 200 g m(-2) yr(-1) with mean 171 +/- 79.4 g m(-2) yr(-)(1). ECM had no significant effect on predicted soil carbon. Our findings suggest that ECM can use a significant proportion of the carbon assimilated by vegetation and hence be an important driver of the decline in CUE at higher latitudes. Our model suggests the quantitative contribution of ECM to soil carbon to be less important but any possible implications through litter quality remain to be assessed. The approach provides a simple proxy of ECM processes for regional C budget models and estimates.", "keywords": ["Soil C balance", "570", "550", "Forest Science", "hiilen kierto", "Carbon residence time", "Carbon use efficiency", "Forestry", "Carbon allocation", "hiilensidonta", "15. Life on land", "ta4112", "13. Climate action", "maaper\u00e4geologia", "Net ecosystem production", "Soil C:N ratio", "Mycorrhiza", "Model"]}, "links": [{"href": "https://pub.epsilon.slu.se/31150/1/makela-a-et-al-20230622.pdf"}, {"href": "https://doi.org/10138/570094"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10138/570094", "name": "item", "description": "10138/570094", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10138/570094"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-09-01T00:00:00Z"}}, {"id": "10.1051/agro/2009046", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-31T06:58:43Z", "type": "Journal Article", "created": "2010-02-18", "title": "Soil And Vegetable Crop Response To Addition Of Different Levels Of Municipal Waste Compost Under Mediterranean Greenhouse Conditions", "description": "In the soil thematic strategy of the European Union Commission, a soil organic carbon content of 2% is indicated as a threshold below which a reduction in soil chemical, biological and physical fertility, and increase in erosion can be observed. Composting of organic matter 'exogenous' to soil (such as from municipalities, industries and agriculture sources) is recommended as an effective way to ensure the return of biomass to soil and the return of the soil organic matter losses. The composting of municipal solid wastes is seen as a strategy to divert organic waste materials from landfills. A municipal source-separated solid waste compost was used in a study carried out during 2003-2006 in Southern Italy. An annual tomato-snap bean-lettuce rotation was planted on a sandy loam soil with 26 g kg\u22121 organic carbon under greenhouse conditions. Different rates of compost (15-30-45 t ha\u22121 on a dry weight basis) and combinations of compost at a rate of 15 t ha\u22121 with reduced doses of mineral N fertilizer (1/2 or 1/4 of optimal supply) were compared with an untreated control and a N, P, K fertilized control. We found that: (1) increasing compost rates produced increasing positive soil organic carbon balances. The C conversion efficiency was 23 and 36% with 15 and 30 t ha\u22121, respectively, but declined to 28% with the highest rate of compost. Indeed, the higher the compost amounts applied, the higher the soil organic carbon losses. (2) Under tunnel-greenhouse conditions, all the fertilization strategies, except compost at a rate of 15 t ha\u22121, increased soil nitrate concentrations by up 100 to 400 mg kg\u22121 dry weight of soil, particularly in the spring-summer seasons. In the same period, nitrate contents in the untreated control reached 100 mg kg\u22121. (3) The average yield of marketable tomato for the four-year period was 114 t ha\u22121 and did not vary significantly among treatments. No differences in snap bean yields were detected among the fertilization treatments. In lettuce cultivation, however, 30 and 45 t ha\u22121 of compost yielded more than other treatments. In the tunnel-greenhouse environment, a high initial content of soil organic matter resulted in high vegetable yields over all four years, even without mineral or organic fertilizer supply. However, among the various fertilization strategies, the best solution able to restore annual soil carbon mineralization was the supply of 15 t ha\u22121 of compost. In addition, this rate reduced the hazards linked to the high release of nitrates in soil caused by 30 and 45 t ha\u22121 rates of compost or mineral fertilization.", "keywords": ["2. Zero hunger", "Compost amendment - Soil C balance - Soil nitrates - Vegetable crops - Greenhouse - Soil enzyme activity", "[SDV.SA] Life Sciences [q-bio]/Agricultural sciences", "soil C balance", "compost amendment", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "12. Responsible consumption", "[SDV.EE] Life Sciences [q-bio]/Ecology", " environment", "soil enzyme activity", "13. Climate action", "greenhouse", "11. Sustainability", "0401 agriculture", " forestry", " and fisheries", "vegetable crops", "soil nitrates", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1051/agro/2009046"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agronomy%20for%20Sustainable%20Development", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/agro/2009046", "name": "item", "description": "10.1051/agro/2009046", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/agro/2009046"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-09-01T00:00:00Z"}}, {"id": "10.4081/ija.2016.753", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-31T07:02:04Z", "type": "Journal Article", "created": "2016-10-24", "title": "Introduction Of Sorghum [Sorghum Bicolor (L.) Moench] Green Manure In Rotations Of Head Salads And Baby Leaf Crops Under Greenhouse", "description": "This paper deals with the introduction in tunnel-greenhouses of sweet sorghum cultivated in short, summer cycle as green manure with the aim to amend soils with biomass grown on farm. This practice has been spreading in tunnels of Sele river Valley (Salerno, Italy) where baby leaf crops are cultivated in numerous cycles (up to 5-7) per year. Three sorghum varieties for forage or biomass (Goliath, BMR 201, and BMR 333) were cultivated in two farms at Eboli and San Marzano sul Sarno with the aim of studying their responses in term of fresh and dry aboveground biomass yielded, carbon (C) and nitrogen (N) content of the biomass incorporated in soil, and C balance in amended soils after one year of ordinary cash crop sequences. No differences, with regard to all the parameters measured, were pointed out among the tested varieties in each site. The sorghum cycle lasted 45 days at Eboli, yielding on average 98 and 13 t ha\u20131 of fresh and dry biomass, respectively; soil biomass incorporation supplied on average 5.8 t ha\u20131 of organic C and 273 kg ha\u20131 of total N. In the farm of San Marzano, sorghum cycle lasted 68 days, yielding 116 and 18 t ha\u20131 of fresh and dry biomass, respectively; soil biomass incorporation supplied on average 8 t ha\u20131 of organic C and 372 kg ha\u20131 of total N. After one year, the plots amended with sorghum biomass showed a soil organic carbon (SOC) concentration not different from the starting point, while SOC decreased in fallow plots. At Eboli, initial SOC content was 12.3 g kg\u20131, but one year later it resulted 12.3, 12.8, 12.2 and 11.3 g kg\u20131 in BMR 201, BMR 333, Goliath and control plots, respectively. At San Marzano, initial SOC content was 11.4 g kg\u20131, but one year later it resulted 11, 12, 10.7 and 10.5 g kg\u20131 in BMR 201, BMR 333, Goliath and control plots, respectively. The annual C balance put in evidence that the green manure with sorghum biomass caused SOC losses higher than those detected in fallow plots. This let us suppose a prime effect in boosting the soil microbial C mineralisation. Only cv BMR 333 in the Eboli trial pointed out a positive SOC change of 1.8 t ha\u20131. Further studies are requested to better understand the real efficacy of sorghum cover crop in soil amendment under tunnels devoted to intensive vegetable crop sequence.", "keywords": ["Soil C balance", "2. Zero hunger", "S", "Aboveground biomass", "N recovery", "Plant culture", "0401 agriculture", " forestry", " and fisheries", "Agriculture", "04 agricultural and veterinary sciences", "15. Life on land", "Sorghum cover crop", "SB1-1110"]}, "links": [{"href": "https://doi.org/10.4081/ija.2016.753"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Italian%20Journal%20of%20Agronomy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.4081/ija.2016.753", "name": "item", "description": "10.4081/ija.2016.753", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.4081/ija.2016.753"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-01-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Soil+C+balance&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=Soil+C+balance&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=Soil+C+balance&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Soil+C+balance&offset=4", "hreflang": "en-US"}], "numberMatched": 4, "numberReturned": 4, "distributedFeatures": [], "timeStamp": "2026-05-31T14:00:10.173839Z"}