干旱区生态环境知识资源中心(Arid): 干旱荒漠区植物骆驼刺的耗水规律

Arid

	干旱荒漠区植物骆驼刺的耗水规律
其他题名	Water Consumption of Natural Plant Alhagi Sparsifalia in Arid Desert Region
	朱永华; 仵彦卿
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2003
卷号	23 期号:4 页码:43-45,65
中文摘要	天然植物的耗不量是其生态需水量的一部分，也是确定其生态需水量的基础。额济纳旗位于黑河的下游，属于干旱荒漠区，全区域只在河流沿岸领先地下水形成天然绿洲，骆驼刺是天然绿洲上的一种常见多年生天然矮灌木具有额济纳旗天然植物要系生物量比地上部分生物量大的多且侧根十分发育的共有特点。因此搞清骆驼刺的耗水规律及耗水量将为认识额济纳旗区域内其它天然植物的耗水量及其耗水规律提供科学的基础。同时也将为维持额济纳旗遭受天然生态不再恶化提供科学的依据。为此本文利用由土壤含水量及根系有效长度得到的折算因子与可能蒸散量的积成功地确定了骆驼刺实际蒸散量即其耗水量。得到额济纳旗天然矮灌木骆驼刺林地的年耗水量为132.00mm。并得了额济纳旗矮灌木骆驼刺的耗不量主要来源于潜水蒸发量与土壤贮水量。
英文摘要	The amount of water consumption of natural plant is a part of its amount of water requirement, and also the basis to determine its amount of water requirement. Ejina County lying in the lower reaches of Heihe River basins, belongs to an exceedingly arid region, and only on the bank of Heihe River, there are banded oases nourished by groundwater supplied by the river water in the upper and middle reaches, the left region all is covered by desert. In Ejina County, the main landscape is natural oasis. Alhagi sparsifalia is a familiar kind of perennial natural undershrub in the natural oasis, it has the common character of natural plants in Ejina County, its underground biomass is more than its overground biomass and its lateral roots is very abundant. So to make clear the rule of water consumption and to determine the ecological amount of water consumption of Alhagi sparsifalia will provide scientific basis for determining that of other natural plants in Ejina County. At the same time, this will provide a scientific basis for maintaining present ecological environment of Ejina County. The ecological amount of water consumption of Alhagi sparsifalia is successfully calculated by potential evapotranspiration multiplying a reduction factor, and the reduction factor is determined by soil moisture volume percentage and roots efficacious length. It is obtained that the annual amount of water consumption in natural Alhagi sparsifalia woods in Ejina County is 132. 002 mm, mainly coming from the phreatic water evaporation and the soil moisture storage.
中文关键词	骆驼刺 ; 耗水量 ; 干旱荒漠区
英文关键词	alhagi sparsifalia woodland amount of water consumption arid desert region
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:1206410
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204354
作者单位	中国科学院寒区旱区环境与工程研究所, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	朱永华,仵彦卿. 干旱荒漠区植物骆驼刺的耗水规律[J]. 中国科学院西北生态环境资源研究院,2003,23(4):43-45,65.
APA	朱永华,&仵彦卿.(2003).干旱荒漠区植物骆驼刺的耗水规律.水土保持通报,23(4),43-45,65.
MLA	朱永华,et al."干旱荒漠区植物骆驼刺的耗水规律".水土保持通报 23.4(2003):43-45,65.