干旱区生态环境知识资源中心(Arid): 新疆渭干河流域土壤盐渍化及其驱动力分析

Arid

	新疆渭干河流域土壤盐渍化及其驱动力分析
其他题名	Analysis on Characteristics and Driver Forces of Soil Salinization in Weigan River Basin,Xinjiang
	卢磊; 乔木; 周生斌; 闫俊杰
来源期刊	农业现代化研究
ISSN	1000-0275
出版年	2011
卷号	32 期号:3 页码:357-361
中文摘要	运用RS与GIS技术,结合统计学方法研究了渭干河流域土壤盐渍化分布状况、表层土壤(0 cm-30 cm)盐渍化特征及其驱动力。结果表明:①流域盐渍化耕地总面积11.48*10~4 km~2,占总耕地面积的39.83％。土壤盐渍化现象普遍,主要分布在绿洲的下部边缘地带,河流中下游、地势平缓低洼等区域。盐渍化土壤呈条形状分布,在绿洲边缘带呈片状分布,边缘的重度盐渍化土壤交错分布在轻度和中度盐渍化土壤中。②流域土壤pH值平均值为8.42,属于碱性土壤。土壤含盐量较高,平均值达到19.289/kg,土壤盐渍化类型主要以硫酸盐和氯化盐为主。③渭干河流域土壤盐渍化是自然因素和人为因素相结合的产物,自然因素是形成条件,人为因素则促进了盐渍化的发展。
英文摘要	The distribution and characteristic of soil salinization in topsoil (0cm-30cm)and its major causes were studied in Weigan River Basin with a combination of methods statistics,GIS and RS.The results revealed that:1.the area of the saline cultivated land is 11.48 * 104 km~2,accounting for 39.83% of the total area of the Weigan River Basin.The soil salinization phenomenon is common,especially in the lower parts of diluvial fans,middle and lower reaches of rivers,gentle low-lying topography,etc.The saline cultivated land takes the shape of strips and the shape of piece in the oasis marginal zone,and there is interleaving of heavy saline cultivated land with light and moderate saline cultivated land.2.Soil in the Weigan River Basin is mostly alkali soil with a pH of 8.42,and is high in salt content.Salts in the 0 cm -30 cm surface layer can reach 19.28g/kg on average.The main types of soil salinization are sulfate and chloride salts.3.Soil salinization is the product of combination of natural factors and human factors in Weigan River Basin.Natural conditions are the material basis for the salinization,and human activity is the driving force for the formation and development of secondary soil salinization in Weigan River Basin.
中文关键词	土壤盐渍化 ; 驱动力 ; 渭干河流域
英文关键词	soil salinization driver force Weigan River Basin
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:4219067
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226831
作者单位	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	卢磊,乔木,周生斌,等. 新疆渭干河流域土壤盐渍化及其驱动力分析[J]. 中国科学院新疆生态与地理研究所,2011,32(3):357-361.
APA	卢磊,乔木,周生斌,&闫俊杰.(2011).新疆渭干河流域土壤盐渍化及其驱动力分析.农业现代化研究,32(3),357-361.
MLA	卢磊,et al."新疆渭干河流域土壤盐渍化及其驱动力分析".农业现代化研究 32.3(2011):357-361.