Estimation and analysis of the ratio of transpiration to evapotranspiration in forest ecosystems along the North-South Transect of East China

doi:10.1007/s11442-019-1691-1

	Estimation and analysis of the ratio of transpiration to evapotranspiration in forest ecosystems along the North-South Transect of East China
	Ren Xiaoli 1; Lu Qianqian 2; He Honglin 1,3; Zhang Li 1,3; Niu Zhongen 1,4
刊名	JOURNAL OF GEOGRAPHICAL SCIENCES
	2019-11-01
卷号	29 期号:11 页码:1807-1822
关键词	The North-South Transect of East China (NSTEC) forest ecosystems ratio of transpiration to evapotranspiration (T/ET) water use efficiency (WUE)
ISSN号	1009-637X
DOI	10.1007/s11442-019-1691-1
通讯作者	Ren Xiaoli(renxl@igsnrr.ac.cn)
英文摘要	The ratio of transpiration to evapotranspiration (T/ET) is a key parameter for quantifying water use efficiency of ecosystems and understanding the interaction between ecosystem carbon uptake and water cycling in the context of global change. The estimation of T/ET has been paid increasing attention from the scientific community in recent years globally. In this paper, we used the Priestly-Taylor Jet Propulsion Laboratory Model (PT-JPL) driven by regional remote sensing data and gridded meteorological data, to simulate the T/ET in forest ecosystems along the North-South Transect of East China (NSTEC) during 2001-2010, and to analyze the spatial distribution and temporal variation of T/ET, as well as the factors influencing the variation in T/ET. The results showed that: (1) The PT-JPL model is suitable for the simulation of evapotranspiration and its components of forest ecosystems in Eastern China, and has relatively good stability and reliability. (2) Spatial distribution of T/ET in forest ecosystems along NSTEC was heterogeneous, i.e., T/ET was higher in the north and lower in the south, with an averaged value of 0.69; and the inter-annual variation of T/ET showed a significantly increasing trend, with an increment of 0.007/yr (p<0.01). (3) Seasonal and inter-annual variations of T/ET had different dominant factors. Temperature and EVI can explain around 90% (p<0.01) of the seasonal variation in T/ET, while the inter-annual variation in T/ET was mainly controlled by EVI (53%, p<0.05).
资助项目	National Key Research and Development Program of China[2015CB954102] ; National Natural Science Foundation of China[31700417] ; National Natural Science Foundation of China[41571424]
WOS关键词	WATER-USE EFFICIENCY ; EVAPORATION ; VARIABILITY
WOS研究方向	Physical Geography
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000505517300003
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/130920]
专题	中国科学院地理科学与资源研究所
通讯作者	Ren Xiaoli
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Zhongke Tongde Beijing Ecol Technol Co, Beijing 100124, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Ren Xiaoli,Lu Qianqian,He Honglin,et al. Estimation and analysis of the ratio of transpiration to evapotranspiration in forest ecosystems along the North-South Transect of East China[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2019,29(11):1807-1822.
APA	Ren Xiaoli,Lu Qianqian,He Honglin,Zhang Li,&Niu Zhongen.(2019).Estimation and analysis of the ratio of transpiration to evapotranspiration in forest ecosystems along the North-South Transect of East China.JOURNAL OF GEOGRAPHICAL SCIENCES,29(11),1807-1822.
MLA	Ren Xiaoli,et al."Estimation and analysis of the ratio of transpiration to evapotranspiration in forest ecosystems along the North-South Transect of East China".JOURNAL OF GEOGRAPHICAL SCIENCES 29.11(2019):1807-1822.