| 塔里木河下游植被生态需水量(英文) |
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| 引用本文： | 叶朝霞,陈亚宁,李卫红.塔里木河下游植被生态需水量(英文)[J].地理学报(英文版),2010,20(2):261-272. |
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| 作者姓名： | 叶朝霞 陈亚宁 李卫红 |
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| 作者单位： | |
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| 基金项目： | National Natural Science Foundation of China,No.90502004; Knowledge Innovation Project of the CAS,No.KZCX2-YW-Q10-3-4,No.KZCX2-YW-Q10-3 |
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| 摘 要： | We have appraised the relationships between soil moisture,groundwater depth, and plant species diversity in the lower reaches of the Tarim River in western China,by analyzing field data from 25 monitoring wells across eight study sites and 25 permanent vegetation survey plots.It is noted that groundwater depth,soil moisture and plant species diversity are closely related.It has been proven that the critical phreatic water depth is five meters in the lower reaches of the Tarim River.We acquired the mean phreatic evaporation of different groundwater levels every month by averaging the two results of phreatic evaporation using the Qunk and Averyanov formulas.Based on different vegetation types and acreage with different groundwater depth,the total ecological water demand(EWD)of natural vegetation in 2005 was 2.4×108m 3in the lower reaches of the Tarim River.Analyzing the monthly EWD,we found that the EWD in the growth season(from April to September)is 81%of the year's total EWD.The EWD in May,June and July was 47%of the year's total EWD,which indicates the best time for dispensing artificial water.This research aims at realizing the sustainable development of water resources and provides a scientific basis for water resource management and sound collocation of the Tarim River Basin.
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| 关 键 词： | 塔里木河下游 生态需水 天然植被 植物物种多样性 地下水埋深 水资源管理 潜水蒸发 无线设备 |
| 收稿时间： | 21 October 2007 |
Ecological water demand of natural vegetation in the lower Tarim River |
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| Zhaoxia?Ye,Yaning?Chen,Weihong?Li.Ecological water demand of natural vegetation in the lower Tarim River[J].Journal of Geographical Sciences,2010,20(2):261-272. |
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| Authors: | Zhaoxia Ye Yaning Chen Weihong Li |
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| Institution: | Key Laboratory of Oasis Ecology and Desert Environment, Xinjiang Institute of Ecology and Geography, CAS,Urumqi 830011, China |
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| Abstract: | We have appraised the relationships between soil moisture,groundwater depth, and plant species diversity in the lower reaches of the Tarim River in western China,by analyzing field data from 25 monitoring wells across eight study sites and 25 permanent vegetation survey plots.It is noted that groundwater depth,soil moisture and plant species diversity are closely related.It has been proven that the critical phreatic water depth is five meters in the lower reaches of the Tarim River.We acquired the mean phre... |
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| Keywords: | ecological water demand natural vegetation eco-hydrological processes Tarim River |
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