干旱区生态环境知识资源中心(Arid): 干旱区间歇性生态输水对地下水位与植被的影响机理研究

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	干旱区间歇性生态输水对地下水位与植被的影响机理研究
其他题名	Influence mechanism of intermittent ecological water conveyance on groundwater level and vegetation in arid land
	古力米热·哈那提 1; 王光焰 2; 张音 3; 刘迁迁 3; 苏里坦 4
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2018
卷号	41 期号:4 页码:726-733
中文摘要	塔里木河下游生态系统作为典型的干旱区生态系统,对水分具有较强的依赖性。为了解塔里木河下游间歇性生态输水对地下水埋深变化、植被生长的关系,得出地下水埋深、植被生长变化及间歇性生态输水过程之间的相互影响机理,以塔里木河下游英苏断面为研究区,基于达西定律、植物根系吸水速率计算方法,以及20092015年生态输水地下水位变化NDVI变化相互耦合关系,对三者之间相互影响过程及影响机理进行定性与定量分析。结果表明:(1)输水效益的显现是一个漫长的过程,地下水的响应和下游植被的生态响应均在一个大的空间和时间尺度上将逐步显现,另外由于植物生长具有季节性,当年地下水埋深值在一定程度上可影响次年植物生长。(2)多年研究表明,当地下水埋深低于7 m时,满足乔、灌木植物生长需求;低于6 m时,满足草本植物生长需求。(3)在年总输水量为固定情况下,一年两次是利于河岸植被恢复的最适宜输水次数。由于生态输水地下水位变化NDVI变化存在一定的滞后期,建议每年春季4~ 5月份和夏季7~ 8月份作为输水期。
英文摘要	As the typical arid area ecosystem,the ecosystem in lower reaches of Tarim River,Xinjiang,China,has a strong dependence on water. Taking Yingsu-section in the lower reaches of Tarim River as the study area,this paper analyzed qualitatively and quantitatively the interaction process and the mechanism among the ecological water conveyance,the underground water level change and NDVI change based on Darcys law,the calculation method of water absorption rate of plant root system and the intercoupling relationship between ecological water conveyance, underground water level change and NDVI change from 2009 to 2015. The results indicate the following conclusions: (1) It takes a long time for the water conveyance to take effect. The response of the groundwater and the ecological response of vegetation in the lower reaches are gradually revealed at a large spatio-temporal scale,and there is a linear growth with the increase of riverbank distance. The study used monitoring wells C3,C4,C5,C6 with the distance from the riverway of 59,300,500,750 meters respectively,and found that there was a lag period of one to nine months during water conveyance. In addition,due to the seasonal nature of plant growth,the groundwater depth value in one year can affect the plant growth in the next year to a certain degree. (2) The research over years show that when the groundwater depth value is less than seven meters,the growth demand of tree and shrub plants is met. For herbaceous plants,when the groundwater depth value is less than six meters,the growth demand is met. (3) When the annual total water supply is fixed,the optimum number of water conveyance for restoration of riverbank vegetation is twice a year. Because there is a certain lag period on the ecological water conveyancethe change in the groundwater levelthe changes in NDVI,it is recommended that the water conveyance should be held from April to May and from July to August. In that way,water supply will have an influence on plant germination from March to April which is the most important period of plant growth,and have an influence on plant flourishing period from June to August which is the period of maximum water demand.
中文关键词	塔里木河下游 ; 间歇性生态输水 ; 地下水位
英文关键词	NDVI lower reaches of Tarim River groundwater level intermittent ecological water conveyance NDVI
语种	中文
国家	中国
收录类别	CSCD
WOS类目	MINERALOGY
WOS研究方向	Mineralogy
CSCD记录号	CSCD:6312499
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/2XILL650/237602
作者单位	1.新疆水利水电科学研究院水资源研究所;;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;;乌鲁木齐, 新疆;;新疆 830049;;830011, 中国; 2.新疆塔里木河流域干流管理局, 库尔勒, 新疆 841000, 中国; 3.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; 4.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	古力米热·哈那提,王光焰,张音,等. 干旱区间歇性生态输水对地下水位与植被的影响机理研究[J]. 中国科学院新疆生态与地理研究所,2018,41(4):726-733.
APA	古力米热·哈那提,王光焰,张音,刘迁迁,&苏里坦.(2018).干旱区间歇性生态输水对地下水位与植被的影响机理研究.干旱区地理,41(4),726-733.
MLA	古力米热·哈那提,et al."干旱区间歇性生态输水对地下水位与植被的影响机理研究".干旱区地理 41.4(2018):726-733.