干旱区生态环境知识资源中心(Arid): 新疆干旱区天然植被最低生态耗水量概念分析

Arid

	新疆干旱区天然植被最低生态耗水量概念分析
其他题名	Analysis on the Minimum Water Requirment of Natural Vegetations in Arid Regions in Xinjiang
	杨海梅; 李明思; 彭玉刚
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2005
卷号	28 期号:6 页码:770-774
中文摘要	干旱区天然植被的最低生态耗水量问题关系到该地区生态建设的标准问题,也是评价水资源生态承载力所必须考虑的指标.同时,天然植被的最低生态耗水量是制定绿洲农业用水和节水规划的依据之一.据不同的生态目标分析并提出了天然植被不同的最低生态耗水量的概念,指出植物的最低生态耗水量是最低生态效应下的植物的耗水量,而且不同生态区要求的生态效应不同,因此,植物在不同生态目标下会表现出的最低生态耗水量不同.进行天然植被最低生态耗水量评价时,首先要明确生态目标.另外,通过试验发现,天然植被存在着生态耗水效率的概念,水分的生态效应存在最优值.
英文摘要	Agriculture in Xinjiang is oasis agriculture under irrigation conditions, and the water consumption for agriculture occupies over 94% of the total water consumption. In the peripheral deserts of oases at the middle and lower reaches of rivers in Xinjiang, the natural vegetations are seriously degenerated, land desertification becomes more serious, and the existence and development of oases are threatened due to the serious shortage of water resources. Therefore, the regeneration of natural vegetations is an urgent matter for the sustainable development in Xinjiang, and water-saving irrigation must be implemented so as to supply the minimum water consumption for the natural vegetations. The minimum ecological water requirement of natural vegetations in arid regions relates to the standards of ecological regeneration, and it is also an index which must be considered in assessing the ecological bearing capacity of water recourse in arid regions. Furthermore, the minimum ecological water requirement of natural vegetations is one of the basic data in working out the water consumption for agriculture and in the technical development of water-saving irrigation in oases. Under the consideration of different ecological objects, this paper develops and analyzes the concepts of different volumes of minimum ecological water requirement of the different natural vegetations, and it is pointed out that the volumes of minimum ecological water requirement of natural vegetations are the water requirements when the natural vegetations exert the lowest ecological effects. The ecological effects are different from the different ecological regions, so the minimum ecological water requirement is different under the different ecological objects. Therefore, the ecological objects should be firstly considered in assessing the minimum ecological water requirement of natural vegetations in arid regions. After carrying out the experiment, it is found that there is an optimal volume of ecological water consumption.
中文关键词	生态耗水量 ; 生态效应 ; 天然植被 ; 干旱区 ; 绿洲农业
英文关键词	the minimum ecological water requirement the lowest ecological effect natural vegetation ecological regeneration
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:2207006
来源机构	石河子大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206194
作者单位	石河子大学水利建筑工程学院, 石河子, 新疆 832003, 中国
推荐引用方式 GB/T 7714	杨海梅,李明思,彭玉刚. 新疆干旱区天然植被最低生态耗水量概念分析[J]. 石河子大学,2005,28(6):770-774.
APA	杨海梅,李明思,&彭玉刚.(2005).新疆干旱区天然植被最低生态耗水量概念分析.干旱区地理,28(6),770-774.
MLA	杨海梅,et al."新疆干旱区天然植被最低生态耗水量概念分析".干旱区地理 28.6(2005):770-774.