干旱区生态环境知识资源中心(Arid): 塔里拉玛干沙漠土壤水分运动参数的计算

Arid

	塔里拉玛干沙漠土壤水分运动参数的计算
其他题名	Calculating soil hydraulic properties in Taklimakan Desert
	黄强 1; 刘玉芸 2; 李生秀 1; 宋郁东 3
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2002
卷号	25 期号:1 页码:75-78
中文摘要	利用田间实测的一套土壤含水率对应基质势数据，根据Van Genuchten提出的水分特征曲线公式，用最小二乘法拟合了塔克拉玛干沙漠中部土壤的水分特征曲线方程。根据水分特征曲方程中的参数，采用Mualem提出的非饱和土壤导水率公式，推算了当地非饱和土壤导水率公式。并根据上述计算结果，推算了非饱和土壤扩散率和比水容量两个参数的计算公式。
英文摘要	A set of data about soil water contents corresponding to soil water potentials were collected in the center of Taklimakan Desert. A water retention equation based on a closed form equation quf forwarded by Van Genuchten was established by using this set of data, and as a results, there were small differences between calculated values and observed values. Meanwhile, an equation for soil water conductivity vs soil water potential was also established by employed the equation forwarded by Mualem. Finally, equations for soil water diffusion vssoil water potential and soil water capacity vs soil water were calculated by using above two results. From above calculated equations, the results shows that the water retention curve sharp declined when soil water potentials were between 0～300cm. Also, in corresponding to this characteristic, the soil water conductivity and soil water capacity were larger than those of clay when soil water potentials were between 0～300cm.
中文关键词	塔里拉玛干沙漠 ; 水分特征曲线 ; 土壤导水率 ; 土壤水分扩散率 ; 比水容量
英文关键词	Tallimakan Desert soil water retention curve soil water conductivity soil water diffusion soil water capacity
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:988677
来源机构	中国科学院新疆生态与地理研究所 ; 西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203163
作者单位	1.西北农林科技大学, 杨陵, 721000; 2.新疆农业职业技术学院, 昌吉, 新疆 831100, 中国; 3.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	黄强,刘玉芸,李生秀,等. 塔里拉玛干沙漠土壤水分运动参数的计算[J]. 中国科学院新疆生态与地理研究所, 西北农林科技大学,2002,25(1):75-78.
APA	黄强,刘玉芸,李生秀,&宋郁东.(2002).塔里拉玛干沙漠土壤水分运动参数的计算.干旱区地理,25(1),75-78.
MLA	黄强,et al."塔里拉玛干沙漠土壤水分运动参数的计算".干旱区地理 25.1(2002):75-78.