干旱区生态环境知识资源中心(Arid): 岷江上游干旱河谷区坡面尺度土壤贮水特性研究

Arid

	岷江上游干旱河谷区坡面尺度土壤贮水特性研究
其他题名	Study on Soil Water Content Characteristics at Typical Southern Slope in Arid River Valley Region,Upstream of Minjiang River
	岳永杰 1; 慕长龙 2; 刘兴良 2; 郑绍伟 2; 何飞 2
ISSN	1003-7578
出版年	2008
卷号	22 期号:10 页码:162-166
中文摘要	研究干旱河谷区土壤层的蓄水特性,以期揭示该区不同海拔梯度上土壤水分的时空格局及其供水机理。本文对理县干旱河谷区典型阳坡的土壤水分状况进行了定位监测。结果表明:海拔1450m、1650m、1850m和2050m的0~50cm土层的年平均贮水量分别为54.04mm、42.8mm、56.38mm和66.22mm,表明了在典型阳坡上部土壤水分贮量最大,下坡位次之,水分条件最差的地带出现在中坡。土壤层贮水量在剖面上的垂直变化规律为30~50cm土层>10~30cm土层>0~10cm土层,底层贮水量最大,表层贮水量低且稳定。在典型阳坡不同海拔梯度上,土壤层贮水量季节分布极不平衡,贮水量变化过程与降雨量季节变化不一致,贮水量变化明显滞后于降雨过程,滞后期为1个月。
英文摘要	In order to reveal the water supply mechanism and water content distribution in different altitudes,the soil water content characteristics at typical southern slope in arid river valley region at upstream of Minjiang River in Li county Sichuan Province were studied.The results showed: average water contents at top soil layer(0 to 50cm) were 54.04,42.80,56.38 and 66.22 mm at altitude 1450,1650,1850 and 2050 m,respectively.These indicated in typical southern slope the water content status following the order: top of the slope> down slope > middle slope.The vertical distribution orderliness of water storage in soil layer showed as the order of: layer of 30 to 50 cm>10 to 30 cm>0 to 10 cm.Compared with the different slope sections,the water storage in the bottom soil layer was the highest.Water storage at the top soil layer was the least and more stable than that of in middle and bottom soil layer.The seasonal distribution of water storage was extremely imbalance in different altitudes in southern slope.The seasonal variety of water storage did not accord to the seasonal precipitation.The soil layer water storage displayed obvious lag of one month than precipitation process.
中文关键词	岷江 ; 干旱河谷 ; 海拔 ; 土壤贮水量
英文关键词	Minjiang River arid river valley altitude soil water storage.
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:3461670
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222438
作者单位	1.内蒙古农业大学林学院, 呼和浩特, 内蒙古 010019, 中国; 2.四川省林业科学研究院, 成都, 四川 610081, 中国
推荐引用方式 GB/T 7714	岳永杰,慕长龙,刘兴良,等. 岷江上游干旱河谷区坡面尺度土壤贮水特性研究[J]. 内蒙古农业大学,2008,22(10):162-166.
APA	岳永杰,慕长龙,刘兴良,郑绍伟,&何飞.(2008).岷江上游干旱河谷区坡面尺度土壤贮水特性研究.,22(10),162-166.
MLA	岳永杰,et al."岷江上游干旱河谷区坡面尺度土壤贮水特性研究".22.10(2008):162-166.