干旱区生态环境知识资源中心(Arid): 基于GIS的黄土高原不同植被区土壤侵蚀研究

Arid

	基于GIS的黄土高原不同植被区土壤侵蚀研究
其他题名	Study on Soil Erosion of Different Vegetation Regions in Loess Plateau Based on GLS
	李斌 1; 张金屯 2
来源期刊	农业环境科学学报
ISSN	1672-2043
出版年	2010
卷号	29 期号:1 页码:134-138
中文摘要	在对黄土高原植被进行分区的基础上,利用地理信息系统技术和景观生态学方法对黄土高原植被区空间数据和土壤侵蚀空间数据进行了空间叠加分析.结果表明,黄土高原被划分为森林植被区、森林草原植被区、温性草原植被区和荒漠半荒漠植被区.在森林植被区,黄土高原土壤侵蚀主要以水蚀为主,轻度以卜的侵蚀百分比为41.92%,水蚀土壤侵蚀指数比温性草原植被区和荒漠半荒漠植被区的水蚀土壤侵蚀指数大,为346.90.在森林草原植被区,黄土高原土壤侵蚀主要以水蚀为主,轻度以上的侵蚀百分比为70.45%,水蚀土壤侵蚀指数均比其他植被区的水蚀土壤侵蚀指数大,为449.40,水蚀最为严重.在温性草原植被区,黄土高原土壤侵蚀主要以水-风混合侵蚀为主,风蚀微度-水蚀剧烈的百分比最大,为33.01%,水-风混合侵蚀土壤侵蚀指数均比其他植被区的水-风混合侵蚀土壤侵蚀指数大,为633.45,水-风混合侵蚀最为严重.在荒漠半荒漠植被区,黄土高原土壤侵蚀主要以风蚀为主,轻度以上的侵蚀百分比为99.65%,风蚀土壤侵蚀指数均比其他植被区的风蚀土壤侵蚀指数大,为589.78,风蚀最为严重.黄土高原的土壤侵蚀表现出明显的地带性分异规律.
英文摘要	The spatial data of vegetation regions and soil erosion in loess plateau were spatially overlap-analyzed with geographical information system(GIS) technology and landscape ecological methods on the basis of loess plateau vegetation regions classification. For a long time,severe soil erosion has not only produced a great impact on agriculture in this area,but also seriously damaged the ecological system of the Loess Plateau and the near areas. The study shows the crucial factor leading to soil erosion was vegetation. The vegetation region attributes in Loess Plateau were embodied with geographical information system(GIS) technology,two-way indicator species analysis(TWINSPAN) and detrended canonical correspondence analysis (DCCA). The Loess Plateau is classified into four regions,which are forest vegetation region,forest-steppe vegetation region,steppe vegetation region and semi-desert and desert vegetation region. There existed a close relation between the vegetation region and soil erosion in Loess Plateau land-scale. The relationship of the vegetation region and soil erosion in loess Plateau was discussed by using the spatial overlap statistics of the soil erosion data and vegetation region data based on geographical information system. The results showed that frozen erosion distributes in both forest-steppe vegetation region and steppe vegetation region while water erosion,wind erosion and water-wind erosion distribute in all vegetation regions. In forest vegetation region,water erosion above the light degree accounted for 41.92％,and water erosion index,being 346.90,was bigger than those in the steppe vegetation region and semi-desert and desert vegetation region. In forest-steppe vegetation region,water erosion above the light degree accounted for 70.45％,and water erosion index,being 449.40,was biggest in all the indexes of the vegetation regions,which meant water erosion in the forest-steppe vegetation region was the most severe.In steppe vegetation region,water-wind erosion was main,accounting for 33.01％,and water-wind erosion index,being 633.45,was biggest in all the indexes of the vegetation regions,which meant water-wind erosion in the steppe vegetation region was the most severe. In semi-desert and desert vegetation region,wind erosion above the light degree accounted for 99.65％,and wind erosion index,being 589.78,was bigger than any other index in the rest vegetation regions,which meant wind erosion in the semi-desert and desert vegetation region was the most severe. The distribution of soil erosion in loess plateau was obviously characterized by spatial change,and such results can demonstrate the effectiveness of studying the relationships of the vegetation region and soil erosion with geographical information system and landscape ecological method and provide scientific evidences for the protection,utilization,recovery and reconstruction of Loess Plateau.
中文关键词	黄土高原 ; 地理信息系统 ; 景观生态学方法 ; 植被区 ; 土壤侵蚀
英文关键词	Loess Plateau geographical information system landscape ecological methods vegetation region soil erosion
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:3810472
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/225418
作者单位	1.中北大学化工与环境学院, 太原, 山西 030051, 中国; 2.北京师范大学生命科学学院, 北京 100875, 中国
推荐引用方式 GB/T 7714	李斌,张金屯. 基于GIS的黄土高原不同植被区土壤侵蚀研究[J]. 北京师范大学,2010,29(1):134-138.
APA	李斌,&张金屯.(2010).基于GIS的黄土高原不同植被区土壤侵蚀研究.农业环境科学学报,29(1),134-138.
MLA	李斌,et al."基于GIS的黄土高原不同植被区土壤侵蚀研究".农业环境科学学报 29.1(2010):134-138.