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
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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 |
DOI | 10.1016/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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