干旱区生态环境知识资源中心(Arid): 干旱半干旱区地下水引起的生态效应的研究现状与发展趋势

Arid

	干旱半干旱区地下水引起的生态效应的研究现状与发展趋势
其他题名	Reviews and prospects on eco-effect induced by groundwater in arid and semi-arid regions
	杨泽元; 王文科
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2009
卷号	32 期号:5 页码:739-745
中文摘要	以地下水与生态环境之间关系为出发点,从地下水与人类活动相互影响的互馈机制研究、地下水引起的生态效应机理及评价指标与模型研究三方面对干旱半干旱区地下水引起的生态效应的研究现状进行了评述,以地下水状态为核心,从地下水生态学学科的建立、面向生态的区域地下水资源评价理论与方法及地下水状态调控机理研究三方面展望了其发展趋势.
英文摘要	Based on a large amount of articles and relevant documents,according to the relationship between groundwater and eco - environment,this paper elaborated the latest achievements of research on eco - effects induced by groundwater in arid and semi - arid regions from three aspects.Firstly,it was mutual back coupling mechanism between groundwater and human activities.On the one hand,abundance degree of groundwater resources, groundwater table and groundwater quality all could affect eco - environment.On the other hand,when human activities vary groundwater states obviously,which include buried depth of groundwater table,mineralization degree of groundwater,moisture content and salt content of aeration zones,positive or negative eco - effect would yield.Secondly,it was eco - effect mechanism induced by groundwater.The researches are mainly on the definition and qualitative assessment of the optimal and critical groundwater states.Thirdly,it was assessment indexes and models.These assessment indexes all imposed on importance of groundwater states.Models mainly included assessment models,transport models of moisture content and salt content in aeration zones and management models etc.Based on the discussion above,around the core of groundwater states,the paper forecasts the prospects from three aspects as follows.Firstly,it is the foundation of groundwater ecology.On the base of analysis of supergene eco - effect of groundwater,from the point of sustainable development,eco - function,eco - value definition,its connotation and extension on groundwater should be discussed deeply.Then on the base of quality and energy conservation principle,and base of researches of dynamic mechanism and cyclic process among atmospheric precipitation, surface water,aerizone water and groundwater,concepts,classifications,calculation means of eco - environment water demand and percentage of all constituent should be defined and perfected.Because groundwater is related to food safety,life safety,environment safety,economy and society safety,it is very important to study concepts of eco - safety and their threshold conditions.These theories above and technology of"3S"(Remote Sensing,Geographic Information System,Global Positioning System),numerical simulation and isotope will compose the base of groundwater ecology.Secondly,they are theories and methods of regional groundwater resource assessment oriented - ecology.For the purpose of harmonious development between sustainable utilization of water resources and eco-environment, goal of regional groundwater resource assessment ecology - oriented will be demonstrated,then on a platform of an assessment information system,regional groundwater resource assessment models,which should combine a lumped parameter model - the groundwater balance model with a distributed parameter model - the numerical simulation model,coupling with the moisture and saline transport models in aeration zones and saturated zones,will be established under conditions of natural resources and the proper groundwater states.Thirdly,it is regulation and control mechanism of groundwater states.In fact the problem is a multi - goal programming problem.That is,an optimum multi - goal management model,which object function is the most synthetic benefit and the least influence on eco - environment,coupling with the moisture and saline transport models in aeration zones and saturated zones, is established to stimulate dynamically variation of groundwater states,under conditions of geology,geomorphology, hydrogeology,engineering geology,environment geology.Then some more operable scenarios can be put forth.
中文关键词	地下水状态 ; 生态效应 ; 干旱半干旱地区
英文关键词	groundwater states eco-effect arid and semi-arid regions
类型	Article
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:3684598
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223572
作者单位	杨泽元, 长安大学环境科学与工程学院, 西安, 陕西 710054, 中国.; 王文科, 长安大学环境科学与工程学院, 西安, 陕西 710054, 中国.
推荐引用方式 GB/T 7714	杨泽元,王文科. 干旱半干旱区地下水引起的生态效应的研究现状与发展趋势[J],2009,32(5):739-745.
APA	杨泽元,&王文科.(2009).干旱半干旱区地下水引起的生态效应的研究现状与发展趋势.干旱区地理,32(5),739-745.
MLA	杨泽元,et al."干旱半干旱区地下水引起的生态效应的研究现状与发展趋势".干旱区地理 32.5(2009):739-745.