干旱区生态环境知识资源中心(Arid): 风沙区灌溉与非灌溉紫花苜蓿地土壤水分时空变化分析

Arid

	风沙区灌溉与非灌溉紫花苜蓿地土壤水分时空变化分析
其他题名	Analysis of spatial - temporal changes of the soil moisture in irrigated and dry lands in wind- sandy area
	陈林; 张庆霞; 宋乃平; 谢应忠
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2010
卷号	24 期号:1 页码:158-162
中文摘要	水分是干旱、半干旱地区植被建设中最重要的生态因子,而在西部干旱地区农业灌溉中,存在水资源有效利用率低、浪费严重的问题.对比分析了风沙区有、无灌溉情况下的土壤水分,结果表明:灌溉地和非灌溉地剖面内土壤水分变异系数随着土层深度的增加均呈现出降低的趋势.灌溉只对0-60cm土壤水分有影响.4～10月灌溉和非灌溉紫花苜蓿地0-20era层土壤含水量呈多"W"型,20-60cm层土壤含水量大致呈"V"型,60-100cm层土壤含水量为平稳型,0-1m土层储水量的变化呈"V"型.土壤水分季节动态变化可划分为3个时期:土壤水分消耗期(5-6月);土壤水分积累期(7-9月);土壤水分稳定期(10月至次年4月).灌溉制度还有待进一步研究.
英文摘要	Water is the most important ecological factor under vegetation construction in arid and semi-arid are-as, but there is a serious problems of low efficiency of water utilization and serious waste of water resources in ag-ricultural irrigation in the western arid areas. In this paper, we analyzed 1he soil moistures of irrigated land and dry land. The results showed that there was a decreasing trends of coefficients of variation in irrigated land and non-irrigated land with the increase in the depth of the soil. It only affected the soil moisture of 0-60cm depth by’irrigation. The soil moistures in irrigated land and non-irrigated land varied in more "W" type in 0-20cm layer, and presented "V" type in 20-40cm layer, while that varied in stable type in 60-100cm layer. The variation of soil water storage capacity presenled "V" type in 0-1 m layer. The seasonal dynamic changes of soil moisture could be divided into 3 periods: consumption period(from May to June) ; accumulation period(from Ju-ly to September) ; stationary period(from October to April of the following year). The irrigation system needs further study.
中文关键词	风沙区 ; 土壤水分 ; 时空变化
英文关键词	wind - sandy area soil moisture spatial - temporal changes
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
WOS研究方向	Agriculture
CSCD记录号	CSCD:3864412
来源机构	宁夏大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/225111
作者单位	陈林, 宁夏大学, 西北退化生态系统恢复与重建省部共建教育部重点实验室, 银川, 宁夏 750021, 中国.; 宋乃平, 宁夏大学, 西北退化生态系统恢复与重建省部共建教育部重点实验室, 银川, 宁夏 750021, 中国.; 谢应忠, 宁夏大学, 西北退化生态系统恢复与重建省部共建教育部重点实验室, 银川, 宁夏 750021, 中国.; 张庆霞, 宁夏大学资源与环境学院, 银川, 宁夏 750021, 中国.
推荐引用方式 GB/T 7714	陈林,张庆霞,宋乃平,等. 风沙区灌溉与非灌溉紫花苜蓿地土壤水分时空变化分析[J]. 宁夏大学,2010,24(1):158-162.
APA	陈林,张庆霞,宋乃平,&谢应忠.(2010).风沙区灌溉与非灌溉紫花苜蓿地土壤水分时空变化分析.干旱区资源与环境,24(1),158-162.
MLA	陈林,et al."风沙区灌溉与非灌溉紫花苜蓿地土壤水分时空变化分析".干旱区资源与环境 24.1(2010):158-162.