干旱区生态环境知识资源中心(Arid): Spatiotemporal Variation of Evapotranspiration on Different Land Use/Cover in the Inner Mongolia Reach of the Yellow River Basin

Arid

DOI	10.3390/rs14184499
	Spatiotemporal Variation of Evapotranspiration on Different Land Use/Cover in the Inner Mongolia Reach of the Yellow River Basin
	Zhang, Xiaojing; Wang, Guoqiang; Xue, Baolin; Wang, Yuntao; Wang, Libo
通讯作者	Wang, GQ
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2022
卷号	14 期号:18
英文摘要	The accurate estimation of global evapotranspiration (ET) is essential to understanding the water cycle and land-atmosphere feedbacks in the Earth system. This study focused on the Inner Mongolia Reach of the Yellow River Basin, a typical arid and semi-arid region. Although there are many remote sensing ET datasets, many of the ET algorithms have not considered the impact of soil moisture, especially in water-limited areas. In this paper, the new PT-JPL model, which incorporates soil moisture into ET simulation, is used to improve the accuracy of ET simulation in water-limited areas. The simulation value is evaluated using two Hobq Desert eddy-covariance towers and the Penman-Monteith-Leuning version 2 (PML-V2) dataset. The new PT-JPL model shows the most significant improvements in water-limited regions; the coefficient of determination can reach 0.826, and the RMSE can reduce to 9.645 W/m(2). Soil evaporation is central to the actual ET increase in the study area. Implementing ecological restoration projects reduced the exposed area of land in the study area and reduced the rate of total ET effectively. Furthermore, the most advanced machine learning local interpretation algorithm-the TreeExplainer-based Shapley additive explanation (SHAP) method-was used to identify the driving factors of ET capacity under different land use types. Temperature, NDVI, and root zone soil moisture were the main environmental factors causing ET changes in different plants. Meanwhile, temperature and root zone soil moisture had a noticeable coupling effect, except for grassland. Furthermore, a threshold effect of temperature to ET was found, and the value is 25, 30, and 30 degrees C in the forest, grassland, and cropland, respectively. This study provides an essential reference for accurately describing the ET characteristics of arid and semi-arid regions to achieve the efficient management of water resources.
英文关键词	evapotranspiration soil moisture TreeExplainer-based Shapley additive explanation (SHAP) threshold effect arid and semi-arid region
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000856980500001
WOS关键词	LOESS PLATEAU ; SPATIAL-PATTERN ; SOLAR-RADIATION ; BLACK-BOX ; HEAT-FLUX ; CHINA ; VEGETATION ; SOIL ; AFFORESTATION ; TEMPERATURE
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394200
推荐引用方式 GB/T 7714	Zhang, Xiaojing,Wang, Guoqiang,Xue, Baolin,et al. Spatiotemporal Variation of Evapotranspiration on Different Land Use/Cover in the Inner Mongolia Reach of the Yellow River Basin[J],2022,14(18).
APA	Zhang, Xiaojing,Wang, Guoqiang,Xue, Baolin,Wang, Yuntao,&Wang, Libo.(2022).Spatiotemporal Variation of Evapotranspiration on Different Land Use/Cover in the Inner Mongolia Reach of the Yellow River Basin.REMOTE SENSING,14(18).
MLA	Zhang, Xiaojing,et al."Spatiotemporal Variation of Evapotranspiration on Different Land Use/Cover in the Inner Mongolia Reach of the Yellow River Basin".REMOTE SENSING 14.18(2022).