{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T05:53:10Z","timestamp":1791006790130,"version":"4.1.0"},"reference-count":40,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T00:00:00Z","timestamp":1787184000000},"content-version":"vor","delay-in-days":19,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["32125025"],"award-info":[{"award-number":["32125025"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["32301347"],"award-info":[{"award-number":["32301347"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["32330066"],"award-info":[{"award-number":["32330066"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["32371630"],"award-info":[{"award-number":["32371630"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Global Change Biology"],"published-print":{"date-parts":[[2026,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>UV radiation can strongly affect litter decomposition across broad climatic gradients, but the magnitude of its contribution differs among ecosystems. Current understanding of this process remains largely based on single\u2010species litter experiments, which overlook the compositional complexity of natural litter inputs and the potential role of litter mixing in modulating UV\u2010driven photodegradation. To address this gap, we conducted a mixed\u2010litter decomposition experiment within a UV\u2010manipulation network across a 25\u00b0 latitudinal gradient spanning four grassland types in China. Using biomass\u2010weighted mixtures of locally dominant species to represent natural litter inputs at each experimental site, we examined how variations in litter diversity and trait dispersion shaped the regional pattern of UV effects on mixed\u2010litter decomposition. After four\u2010year field decomposition, UV attenuation prolonged litter mean residence time by 3%\u201335% across sites. Litter mixtures with higher taxonomic and phylogenetic diversity showed faster early\u2010stage mass loss, a pattern explained by greater availability of dissolved organic carbon for microbial decomposition. In contrast, greater dispersion in species\u2010level C\/N ratios within the litter mixtures imposed increasingly stronger stoichiometric constraint on biotic degradation as decomposition progressed. The magnitude of UV\u2010induced photodegradation increased with UV intensity. However, faster decomposition in phylogenetically diverse mixtures shortened the duration of radiation exposure, thereby constraining the strength of UV\u2010induced litter photodegradation. This mixing\u2010effect\u2010mediated constraint presented a stronger influence than UV exposure intensity on explaining regional variation in UV effects on litter decomposition. Overall, these findings underscore a previously underappreciated role of local litter mixture complexity in modulating the spatial pattern of UV\u2010induced photodegradation across grassland ecosystems. By linking litter mixing effects with UV\u2010driven decomposition, this study extends photodegradation research beyond the common focus on single\u2010species litter and highlights the importance of community\u2010level litter complexity for predicting grassland carbon turnover concurrent with climate change and biodiversity loss.<\/jats:p>","DOI":"10.1111\/gcb.71075","type":"journal-article","created":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T12:40:41Z","timestamp":1787229641000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Litter Mixing Effects Modulate\n                    <scp>UV<\/scp>\n                    \u2010Induced Photodegradation Across Grasslands"],"prefix":"10.1111","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5452-944X","authenticated-orcid":false,"given":"Sen","family":"Yang","sequence":"first","affiliation":[{"name":"State Key Laboratory of Forage Breeding\u2010by\u2010Design and Utilization, Key Laboratory of Vegetation and Environmental Change, Institute of Botany Chinese Academy of Sciences  Beijing China"},{"name":"University of Chinese Academy of Sciences  Beijing China"},{"name":"Institute of Ecology, College of Urban and Environmental Sciences Peking University  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5877-1084","authenticated-orcid":false,"given":"Jiao","family":"Su","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Forage Breeding\u2010by\u2010Design and Utilization, Key Laboratory of Vegetation and Environmental Change, Institute of Botany Chinese Academy of Sciences  Beijing China"},{"name":"University of Chinese Academy of Sciences  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4084-0541","authenticated-orcid":false,"given":"Pengfei","family":"Chang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Forage Breeding\u2010by\u2010Design and Utilization, Key Laboratory of Vegetation and Environmental Change, Institute of Botany Chinese Academy of Sciences  Beijing China"},{"name":"University of Chinese Academy of Sciences  Beijing China"},{"name":"China National Botanical Garden  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuntao","family":"Wu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Forage Breeding\u2010by\u2010Design and Utilization, Key Laboratory of Vegetation and Environmental Change, Institute of Botany Chinese Academy of Sciences  Beijing China"},{"name":"University of Chinese Academy of Sciences  Beijing China"},{"name":"China National Botanical Garden  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Life Sciences Hebei University  Baoding China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Meifeng","family":"Deng","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Forage Breeding\u2010by\u2010Design and Utilization, Key Laboratory of Vegetation and Environmental Change, Institute of Botany Chinese Academy of Sciences  Beijing China"},{"name":"China National Botanical Garden  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junsheng","family":"Huang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Forage Breeding\u2010by\u2010Design and Utilization, Key Laboratory of Vegetation and Environmental Change, Institute of Botany Chinese Academy of Sciences  Beijing China"},{"name":"China National Botanical Garden  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5696-3151","authenticated-orcid":false,"given":"Lingli","family":"Liu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Forage Breeding\u2010by\u2010Design and Utilization, Key Laboratory of Vegetation and Environmental Change, Institute of Botany Chinese Academy of Sciences  Beijing China"},{"name":"University of Chinese Academy of Sciences  Beijing China"},{"name":"China National Botanical Garden  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,8,20]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365\u20102486.2008.01674.x"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.0909396107"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/nph.20105"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1890\/14\u20101482.1"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41893\u2010019\u20100314\u20102"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-030-59631-6"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1111\/1365\u20102745.12507"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1029\/2008JG000772"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365\u20102486.2007.01428.x"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1023\/A:1010933404324"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/1365\u20102745.13946"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.1111\/2041\u2010210x.12138"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10533\u2010019\u201000616\u2010y"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365\u20102435.2011.01913.x"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.1111\/ele.12137"},{"key":"e_1_2_10_17_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.0030\u20101299.2004.12738.x"},{"key":"e_1_2_10_18_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature13247"},{"key":"e_1_2_10_19_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.ecolsys.36.112904.151932"},{"key":"e_1_2_10_20_1","doi-asserted-by":"publisher","DOI":"10.3390\/f10040360"},{"key":"e_1_2_10_21_1","unstructured":"Hovila J. A.Arola andJ.Tamminen.2013.\u201cOMI\/Aura Surface UVB Irradiance and Erythemal Dose Daily L3 Global Gridded 1.0 Degree x 1.0 Degree V3.\u201dhttps:\/\/doi.org\/10.5067\/Aura\/OMI\/DATA3009."},{"key":"e_1_2_10_22_1","doi-asserted-by":"publisher","DOI":"10.2307\/23359728"},{"key":"e_1_2_10_23_1","doi-asserted-by":"publisher","DOI":"10.1111\/1365\u20102435.14459"},{"key":"e_1_2_10_24_1","doi-asserted-by":"publisher","DOI":"10.1111\/nph.16556"},{"key":"e_1_2_10_25_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.0805600105"},{"key":"e_1_2_10_26_1","doi-asserted-by":"publisher","DOI":"10.1111\/nph.18253"},{"key":"e_1_2_10_27_1","doi-asserted-by":"publisher","DOI":"10.1039\/C9GC04324A"},{"key":"e_1_2_10_28_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11104\u2010012\u20101533\u20108"},{"key":"e_1_2_10_29_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467\u2010020\u201018296\u2010w"},{"key":"e_1_2_10_30_1","doi-asserted-by":"publisher","DOI":"10.1002\/ecy.4280"},{"key":"e_1_2_10_31_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1134853"},{"key":"e_1_2_10_32_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.foreco.2021.119522"},{"key":"e_1_2_10_33_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.soilbio.2006.12.037"},{"key":"e_1_2_10_34_1","doi-asserted-by":"publisher","DOI":"10.1111\/gcb.12812"},{"key":"e_1_2_10_35_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11104\u2010017\u20103290\u20101"},{"key":"e_1_2_10_36_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1197479"},{"key":"e_1_2_10_37_1","doi-asserted-by":"publisher","DOI":"10.2307\/3546010"},{"key":"e_1_2_10_38_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.scitotenv.2024.172122"},{"key":"e_1_2_10_39_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11368\u2010020\u201002810\u20100"},{"key":"e_1_2_10_40_1","doi-asserted-by":"publisher","DOI":"10.1111\/gcb.70456"},{"key":"e_1_2_10_41_1","doi-asserted-by":"publisher","DOI":"10.1029\/2023JG007934"}],"container-title":["Global Change Biology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/gcb.71075","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/gcb.71075","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/gcb.71075","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T05:06:26Z","timestamp":1791003986000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/gcb.71075"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,8]]},"references-count":40,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2026,8]]}},"alternative-id":["10.1111\/gcb.71075"],"URL":"https:\/\/doi.org\/10.1111\/gcb.71075","archive":["Portico"],"relation":{},"ISSN":["1354-1013","1365-2486"],"issn-type":[{"value":"1354-1013","type":"print"},{"value":"1365-2486","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,8]]},"assertion":[{"value":"2026-02-07","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-08-13","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-08-20","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e71075"}}