干旱区生态环境知识资源中心(Arid): 塔里木河下游荒漠河岸林地下水蒸散发

Arid

	塔里木河下游荒漠河岸林地下水蒸散发
其他题名	Groundwater Evapotranspiration in Desert Riparian Forest in the Lower Reaches of the Tarim River
	孙海涛 1; 陈亚鹏 1; 陈亚宁2 ; 张颖 1; 何振磊 1
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2020
卷号	37 期号:1 页码:116-125
中文摘要	通过对塔里木河下游4个观测点地下水位的监测和地下水蒸散发的估算,分析荒漠河岸林地下水位月和日的波动、地下水蒸散发(ET_g)的时空变化及其主要影响因素。结果表明: ①在生态输水前(7月21日至8月12日),4个观测点地下水位呈整体下降趋势;而生态输水后,水位保持稳定上升趋势。在整个观测期内,地下水位都表现出明显的昼夜波动现象。② ET_g均呈现出单峰变化特征, 08: 00开始快速增加,在12: 0016: 00维持在一个较高水平上, 18: 00以后快速下降,最高值出现在当地时间14: 00。③ ET_g随着植被类型、覆盖度的不同而存在显著差异,同时又受地下水位埋深的影响。④太阳辐射、温度和饱和水气压差是影响塔里木河下游地下水蒸散发日变化的主要因素,风速对其无显著影响。
英文摘要	In this study, the groundwater level at four observation sites in the lower reaches of the Tarim River was monitored,and the values of groundwater evapotranspiration were estimated. The purposes of the study were to analyze the fluctuations of groundwater level and the groundwater evapotranspiration (ET_g) as well as their main affecting factors. The results showed that: ① A drawdown of groundwater level occurred holistically at the four observation sites before implementing the project of ecologic water conveyance; after implementing the project from July 21 to August 12,however, the groundwater level was in a steady rising trend. There was a diurnal-nocturnal fluctuation of groundwater level during the study period; ② The curve of ET_g was unimodal,ET_g began to rapidly increase from 08: 00,maintained at a high level from 12: 00 to 16: 00,and rapidly decreased after 18: 00. The highest value appeared at 14: 00 local time; ③ ET_g varied significantly with different vegetation types and coverage,and was also affected by groundwater depth; ④ Solar radiation, temperature and vapor pressure deficiency were the main factors affecting the daily variation of groundwater evapotranspiration in the lower reaches of the Tarim River,and the effect of wind speed on it was not significant.
中文关键词	地下水 ; 蒸散发 ; 地下水位 ; 荒漠河岸林 ; 塔里木河下游
英文关键词	groundwater evapotranspiration groundwater level desert riparian forest lower reaches of the Tarim River
语种	中文
收录类别	CSCD
WOS类目	MINERALOGY
WOS研究方向	Mineralogy
CSCD记录号	CSCD:6652374
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315826
作者单位	1.中国科学院新疆生态与地理研究所;;中国科学院大学, 荒漠与绿洲生态国家重点实验室;;, 乌鲁木齐;;, 新疆;;北京 830011;;100049, 中国; 2.中国科学院新疆生态与地理研究所, 荒漠与绿洲生态国家重点实验室, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	孙海涛,陈亚鹏,陈亚宁,等. 塔里木河下游荒漠河岸林地下水蒸散发[J]. 中国科学院新疆生态与地理研究所,2020,37(1):116-125.
APA	孙海涛,陈亚鹏,陈亚宁,张颖,&何振磊.(2020).塔里木河下游荒漠河岸林地下水蒸散发.干旱区研究,37(1),116-125.
MLA	孙海涛,et al."塔里木河下游荒漠河岸林地下水蒸散发".干旱区研究 37.1(2020):116-125.