干旱区生态环境知识资源中心(Arid): 吉林省西部半干旱地区土地利用方式对土壤养分的影响以吉林省通榆县为例

Arid

	吉林省西部半干旱地区土地利用方式对土壤养分的影响以吉林省通榆县为例
其他题名	Effects of land use type on soil nutrients in the semiarid area of western Jilin ProvinceA case study in Tongyu County of Jilin
	任春颖; 张柏; 王宗明; 宋开山; 刘殿伟
来源期刊	干旱地区农业研究
ISSN	1000-7601
出版年	2010
卷号	28 期号:4 页码:206-212
中文摘要	选取位于吉林省西部的通榆县作为研究区,利用全国第二次土壤普查数据和2006年土壤采样分析数据,结合土地利用数据,研究土地利用方式及其动态变化对县域尺度表层(020 cm)土壤养分的影响.结果表明:近20年来通榆县土地利用格局变化显著,表层土壤全量养分显著降低,土壤有机质和速效养分则无显著变化.2006年耕地,林地和草地的土壤有机质,全氮,全钾,速效氮,速效磷含量无显著差异,全磷和速效钾含量差异性显著;除全磷,全钾和速效钾外,盐碱地土壤养分含量均显著低于耕地,林地和草地.除荒地开垦后土壤有机质含量增加,毁草,毁湿开荒以及多年放牧和耕作均造成土壤有机质含量降低;不同土地利用变化过程对土壤全量养分的影响以降低含量为主,而速效养分则以增加含量为主
英文摘要	Taking Tongyu County as a typical study area, this paper evaluated the effects of land use type and its changes on soil nutrients in the surface soil of semiarid area of western Jilin Province. Field soil sample data and land use data were used to identify land use changes within two typical periods of 1986 and 2006,to examine soil nutrient changes between 1986 and 2006, and to analyze the relationship between land use changes and soil nutrient changes. The results indicated that the spatial pattern of land use types in Tongyu County had obvious changes in recent 20 years. The area percentage of cropland increased by 53%, while that of grassland declined from 27.3% to 13.5%.The level of soil nutrients in the surface soil of Tongyu County is very low. Total nitrogen, total phosphorus and total potassium of 2006 decreased significantly in comparison with 1986, while soil organic matter and available nutrients had no significant difference between 1986 and 2006. Among samples of 2006, significant differences between cropland, grassland and woodland were found on soil nutrients including total phosphorus and available potassium. Except total phosphorus, total potassium and available potassium, the contents of other soil nutrients in salina land were obviously lower than those in cropland, grassland and woodland. Land use changes had resulted in soil nutrient changes in the study area. Land reclamation led to the increase of soil organic matter, but other land use conversion resulted in the decrease of soil organic matter. Most total nutrients declined, while available nutrients increased after the conversion of land use type
中文关键词	土地利用方式 ; 土壤养分 ; 吉林省西部 ; 通榆县
英文关键词	land use type land use change soil nutrients western Jilin Tongyu County
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:4057434
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/378664
作者单位	任春颖, 中国科学院东北地理与农业生态研究所, 长春, 吉林 130012, 中国.; 张柏, 中国科学院东北地理与农业生态研究所, 长春, 吉林 130012, 中国.; 王宗明, 中国科学院东北地理与农业生态研究所, 长春, 吉林 130012, 中国.; 宋开山, 中国科学院东北地理与农业生态研究所, 长春, 吉林 130012, 中国.; 刘殿伟, 中国科学院东北地理与农业生态研究所, 长春, 吉林 130012, 中国.
推荐引用方式 GB/T 7714	任春颖,张柏,王宗明,等. 吉林省西部半干旱地区土地利用方式对土壤养分的影响以吉林省通榆县为例[J],2010,28(4):206-212.
APA	任春颖,张柏,王宗明,宋开山,&刘殿伟.(2010).吉林省西部半干旱地区土地利用方式对土壤养分的影响以吉林省通榆县为例.干旱地区农业研究,28(4),206-212.
MLA	任春颖,et al."吉林省西部半干旱地区土地利用方式对土壤养分的影响以吉林省通榆县为例".干旱地区农业研究 28.4(2010):206-212.