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Tamarix ramosissima stand evapotranspiration and its association with hydroclimatic factors in an arid region in northwest China
Yu, Tengfei1,2,3; Qi, Feng1,2,3; Si, Jianhua1,2,3; Zhang, Xiaoyou1,2; Zhao, Chunyan2
刊名JOURNAL OF ARID ENVIRONMENTS
2017-03-01
卷号138页码:18-26
关键词Evapotranspiration Nighttime transpiration Eddy covariance Tamarix ramosissima Heihe River basin
ISSN号0140-1963
DOI10.1016/j.jaridenv.2016.11.006
通讯作者Yu, Tengfei(yutf@lzb.ac.cn)
英文摘要There is currently only limited quantitative data available on riparian forest evapotranspiration (ET) of saltcedar (Tamarix spp.) in northwest China. We measured ET over a two year period using eddy covariance (EC) in Tamarix ramosissima stands in the lower Heihe River basin, China. We found that during the growing season, measured ET was approximately 520 mm yr(-1) with a mean of 2.82 mm d(-1). This was comparable to results from the lower Tarim River basin in central Asia where Tamarix spp is a native species. Comparisons between measured and estimated daily ET yielded an underestimation of approximately 30%, which could be partly due to errors in EC and nighttime transpiration. Whether directly measured or estimated, T. ramosissima stands were lower in its native environments compared to the western U.S.. Moreover, environmental parameters, such as climate and soil water content, accounted for at least 68%-78% of hourly and daily ET variation, respectively. Soil water factors were more important in accounting for daily ET variation than climate factors, but the opposite was true on a hourly timescale. Results showed that lower water use in T. ramosissima stands in the central Asia likely resulted from its long-term adaptation to hydroclimatic regimes. (C) 2016 Published by Elsevier Ltd.
收录类别SCI
WOS关键词MIDDLE RIO-GRANDE ; EDDY-COVARIANCE ; WATER RELATIONS ; SOIL-WATER ; HYDRAULIC REDISTRIBUTION ; POPULUS-EUPHRATICA ; DESERT REGIONS ; GROWING-SEASON ; UNITED-STATES ; RIVER-BASIN
WOS研究方向Environmental Sciences & Ecology
WOS类目Ecology ; Environmental Sciences
语种英语
出版者ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
WOS记录号WOS:000392896800003
内容类型期刊论文
URI标识http://www.corc.org.cn/handle/1471x/2557618
专题寒区旱区环境与工程研究所
通讯作者Yu, Tengfei
作者单位1.Chinese Acad Sci, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Alax Desert Ecohydrol Expt Res Stn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
3.Gansu Hydrol & Water Resources Engn Res Ctr, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714
Yu, Tengfei,Qi, Feng,Si, Jianhua,et al. Tamarix ramosissima stand evapotranspiration and its association with hydroclimatic factors in an arid region in northwest China[J]. JOURNAL OF ARID ENVIRONMENTS,2017,138:18-26.
APA Yu, Tengfei,Qi, Feng,Si, Jianhua,Zhang, Xiaoyou,&Zhao, Chunyan.(2017).Tamarix ramosissima stand evapotranspiration and its association with hydroclimatic factors in an arid region in northwest China.JOURNAL OF ARID ENVIRONMENTS,138,18-26.
MLA Yu, Tengfei,et al."Tamarix ramosissima stand evapotranspiration and its association with hydroclimatic factors in an arid region in northwest China".JOURNAL OF ARID ENVIRONMENTS 138(2017):18-26.
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