文献类型：期刊文献

英文题名：Relationship between Gully Erosion and Agricultural Landscape Pattern in the Typical Black Soil Region of Northeast China

作者：Deng, Rongxin[1];Wang, Wenjuan[2]

第一作者：Deng, Rongxin

通讯作者：Wang, WJ[1]

机构：[1]North China Univ Water Resources & Elect Power, Sch Resources & Environm, Zhengzhou 450045, Henan, Peoples R China;[2]Henan Univ Econ & Law, Coll Resources & Environm, Zhengzhou 450046, Henan, Peoples R China

第一机构：North China Univ Water Resources & Elect Power, Sch Resources & Environm, Zhengzhou 450045, Henan, Peoples R China

通讯机构：[1]corresponding author), Henan Univ Econ & Law, Coll Resources & Environm, Zhengzhou 450046, Henan, Peoples R China.|[104848]河南财经政法大学资源与环境学院;[10484]河南财经政法大学;

年份：2019

卷号：10

期号：4

起止页码：120-134

外文期刊名：TECNOLOGIA Y CIENCIAS DEL AGUA

收录：;Scopus(收录号：2-s2.0-85072691896);WOS:【SCI-EXPANDED(收录号:WOS:000475852300006)】；

基金：This work was supported by Training Plan for Young Backbone Teachers in Colleges and Universities of Henan Province in China, and NG Teng Fong / Sino Outstanding Youth Fund of HUEL.

语种：英文

外文关键词：Gully erosion; gully density; black soil region of Northeast China; landscape metrics

摘要：The black soil region of Northeast China is an important grain producing area that faces a serious erosion problem. We used SPOTS remote sensing imagery from 2008 to establish the gully distribution in a typical black soil region located in the Wuyuer and Nemoer River basin, and Landsat Thematic Mapper imagery to designate landscape patterns. Ninety-three sub-basins were determined based on digital elevation model data using a hydrological analysis module for which landscape pattern metrics and gully density were obtained using FRAGSTATS software and the Geographic Information System (GIS) spatial analysis function, respectively. The results show a gully density of 4,219.2 m(2)/km(2) with 10,149.5 ha of eroded dry land and 25,261.2 ha of destroyed dry land. Correlation analysis between gully density and the landscape percentage of dry land and forest, perimeter-area fractal dimension, contagion index, and Shannon's diversity index indicate that regulation of the proportion of forest, dry land, and grass, and reasonable optimization of landscape arrangement is very important for soil erosion management and control. Additionally, the findings indicate that landscape differences between each sub-basin are not the principal reason for differences in gully erosion. Further research on gully formation should integrate the effect of natural forces and human activities.