@article{3684ef419a2545d28f6841a3905af20f,
title = "Persistent and enhanced carbon sequestration capacity of alpine grasslands on Earth's Third Pole",
abstract = "The carbon sequestration capacity of alpine grasslands, composed of alpine meadows and steppes, in the Tibetan Plateau has an essential role in regulating the regional carbon cycle. However, inadequate understanding of its spatiotemporal dynamics and regulatory mechanisms restricts our ability to determine potential climate change impacts. We assessed the spatial and temporal patterns and mechanisms of the net ecosystem exchange (NEE) of carbon dioxide in the Tibetan Plateau. The carbon sequestration of the alpine grasslands ranged from 26.39 to 79.19 Tg C year-1 and had an increasing rate of 1.14 Tg C year-1 between 1982 and 2018. While alpine meadows were relatively strong carbon sinks, the semiarid and arid alpine steppes were nearly carbon neutral. Alpine meadow areas experienced strong increases in carbon sequestration mainly because of increasing temperatures, while alpine steppe areas had weak increases mainly due to increasing precipitation. Carbon sequestration capacity of alpine grasslands on the plateau has undergone persistent enhancement under a warmer and wetter climate.",
author = "Yuyang Wang and Jingfeng Xiao and Yaoming Ma and Jinzhi Ding and Xuelong Chen and Zhiyong Ding and Yiqi Luo",
note = "Funding Information: Acknowledgments:W esincerelythankY .Li,Y .Zhang,D.W ei, Z.Hu,B.Niu,Z.Li,F .Li,X.Li,and S.Liuforprovingthevaluableobservationfluxdata.W ethankZ.Xie,L.Yuan,andJ.Xufor helping with the remote sensing data. Special thanks to Y . Zhou for support in the whole process. Funding: This research was funded by the Second Tibetan Plateau Scientific ExpeditionandResearchProgram(STEP)(2019QZKK0103),andtheNationalNatur al Science FoundationofChina(42230610,91837208and42207223).J.X.wassupportedbytheUniversity ofNewHampshire.Authorcontributions:Conceptualization:Y .M., Y .W ., X.C.,andJ.X. Methodology:Y .W .Investigation:Y .W .andY .M. Visualization:Y .W .andZ.D.Supervision:Y .M., X.C.,J.X.,J.D.,andY .L. Writing—originaldraft:Y .W .Writing—reviewandediting:Y .W ., J.X.,Y .M., J.D.,X.C.,Z.D.,andY .L. Competinginterests:Theauthorsdeclarethattheyhavenocompeting interests.Dataandmaterialsavailability:Theeddycovariancefluxdataareaccessiblefrom theBigEarthDataPlatformforThreePoles(https://poles.tpdc.ac.cn/en/)andtheofficial websiteofChinaFlux(http://chinaflux.org/enn/).TheNDVIandEVIdatafromtheMODIS MOD13Q1canbeaccessedathttps://search.earthdata.nasa.gov/.TheNDVIdatafromA VHRR-V6arefreelyavailableathttps://ncei.noaa.gov/products/climate-data-records/normalized-difference-vegetation-index.TheSIFdatacanbedownloadedathttp://data.globalecology.unh. edu/data/GOSIF_v2/. The regional-scale gridded reanalysis meteorological datasets can be accessedathttps://poles.tpdc.ac.cn/en/.TheIndependentNEEdatasetsfromtheMsTMIPcan bedownloadedathttps://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1225.Alldataneededto evaluatetheconclusionsinthepaperarepresentinthepaperand/ortheSupplementary Materials. Publisher Copyright: {\textcopyright} 2023 The Authors.",
year = "2023",
doi = "10.1126/sciadv.ade6875",
language = "English (US)",
volume = "9",
journal = "Science Advances",
issn = "2375-2548",
publisher = "American Association for the Advancement of Science",
number = "20",
}