中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Quantifying the Impact of Vegetation Greening on Evapotranspiration and Its Components on the Tibetan Plateau

文献类型:期刊论文

作者Han, Peidong1,2; Ren, Hanyu1; Zhao, Yinghan1; Zhao, Na2; Wang, Zhaoqi3; Wang, Zhipeng1; Liu, Yangyang1,2; Wang, Zhenqian4,5
刊名REMOTE SENSING
出版日期2025-05-08
卷号17期号:10页码:1658
关键词Tibetan Plateau evapotranspiration water-sustainable vegetation restoration climate change
DOI10.3390/rs17101658
产权排序2
文献子类Article
英文摘要The Tibetan Plateau (TP) serves as a vital ecological safeguard and water conservation region in China. In recent decades, substantial efforts have been made to promote vegetation greening across the TP; however, these interventions have added complexity to the local water balance and evapotranspiration (ET) processes. To investigate these dynamics, we apply the Priestley-Taylor Jet Propulsion Laboratory (PT-JPL) model to simulate ET components in the TP. Through model sensitivity experiments, we isolate the contribution of vegetation greening to ET variations. Furthermore, we analyze the role of climatic drivers on ET using a suite of statistical techniques. Based on satellite and climate data from 1982 to 2018, we found the following: (1) The PT-JPL model successfully captured ET trends over the TP, revealing increasing trends in total ET, canopy transpiration, interception loss, and soil evaporation at rates of 0.06, 0.39, 0.005, and 0.07 mm/year, respectively. The model's performance was validated using eddy covariance observations from three flux tower sites, yielding R2 values of 0.81-0.86 and RMSEs ranging from 6.31 to 13.20 mm/month. (2) Vegetation greening exerted a significant enhancement on ET, with the mean annual ET under greening scenarios (258.6 +/- 120.9 mm) being 2.9% greater than under non-greening scenarios (251.2 +/- 157.2 mm) during 1982-2018. (3) Temperature and vapor pressure deficit were the dominant controls on ET, influencing 53.5% and 23% of the region, respectively, as identified consistently by both multiple linear regression and dominant factor analyses. These findings highlight the net influence of vegetation greening and offer valuable guidance for water management and sustainable ecological restoration efforts in the region.
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WOS关键词WATER-VAPOR ; TRANSPIRATION ; CARBON ; RIVER
WOS研究方向Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
WOS记录号WOS:001496055600001
出版者MDPI
源URL[http://ir.igsnrr.ac.cn/handle/311030/214648]  
专题资源与环境信息系统国家重点实验室_外文论文
通讯作者Liu, Yangyang
作者单位1.Northwest A&F Univ, Coll Grassland Agr, Yangling 712100, Peoples R China;
2.Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China;
3.Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining 810016, Peoples R China;
4.Stockholm Univ, Dept Phys Geog, S-10691 Stockholm, Sweden;
5.Stockholm Univ, Bolin Ctr Climate Res, S-10691 Stockholm, Sweden
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GB/T 7714
Han, Peidong,Ren, Hanyu,Zhao, Yinghan,et al. Quantifying the Impact of Vegetation Greening on Evapotranspiration and Its Components on the Tibetan Plateau[J]. REMOTE SENSING,2025,17(10):1658.
APA Han, Peidong.,Ren, Hanyu.,Zhao, Yinghan.,Zhao, Na.,Wang, Zhaoqi.,...&Wang, Zhenqian.(2025).Quantifying the Impact of Vegetation Greening on Evapotranspiration and Its Components on the Tibetan Plateau.REMOTE SENSING,17(10),1658.
MLA Han, Peidong,et al."Quantifying the Impact of Vegetation Greening on Evapotranspiration and Its Components on the Tibetan Plateau".REMOTE SENSING 17.10(2025):1658.

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来源:地理科学与资源研究所

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