{"type": "FeatureCollection", "features": [{"id": "10.1021/acs.est.3c01816", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-28T16:17:26Z", "type": "Journal Article", "created": "2023-09-08", "title": "Effects of Climate Change on Soil Organic Matter C and H Isotope Composition in a Mediterranean Savannah (Dehesa): An Assessment Using Py-CSIA", "description": "Dehesas are Mediterranean agro-sylvo-pastoral systems sensitive to climate change. Extreme climate conditions forecasted for Mediterranean areas may change soil C turnover, which is of relevance for soil biogeochemistry modeling. The effect of climate change on soil organic matter (SOM) is investigated in a field experiment mimicking environmental conditions of global change scenarios (soil temperature increase, +2-3 \u00b0C, W; rainfall exclusion, 30%, D; a combination of both, W+D). Pyrolysis-compound-specific isotope analysis (Py-CSIA) is used for C and H isotope characterization of SOM compounds and to forecast trends exerted by the induced climate shift. After 2.5 years, significant \u03b413C and \u03b42H isotopic enrichments were detected. Observed short- and mid-chain n-alkane \u03b413C shifts point to an increased microbial SOM reworking in the W treatment; a 2H enrichment of up to 40\u2030 of lignin methoxyphenols was found when combining W+D treatments under the tree canopy, probably related to H fractionation due to increased soil water evapotranspiration. Our findings indicate that the effect of the tree canopy drives SOM dynamics in dehesas and that, in the short term, foreseen climate change scenarios will exert changes in the SOM dynamics comprising the biogeochemical C and H cycles.", "keywords": ["2. Zero hunger", "Take urgent action to combat climate change and its impacts", "Analytical pyrolysis", "Climate Change", "biomarkers", "nalyticalpyrolysis", "15. Life on land", "Mediterranean soil", "Trees", "\u03b42H", "\u03b413C \u03b42H", "Soil", "Isotopes", "13. Climate action", "Alkanes", "\u03b413C", "Climate change", "http://metadata.un.org/sdg/13", "climatechange", "Biomarkers", "Pyrolysis"]}, "links": [{"href": "https://pubs.acs.org/doi/pdf/10.1021/acs.est.3c01816"}, {"href": "https://doi.org/10.1021/acs.est.3c01816"}, {"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.3c01816", "name": "item", "description": "10.1021/acs.est.3c01816", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1021/acs.est.3c01816"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-09-08T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=%CE%B42H&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=%CE%B42H&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=%CE%B42H&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=%CE%B42H&offset=1", "hreflang": "en-US"}], "numberMatched": 1, "numberReturned": 1, "distributedFeatures": [], "timeStamp": "2026-07-28T21:12:57.328798Z"}