文献类型：期刊文献

中文题名：东北典型黑土区侵蚀沟发育演化特征分析

英文题名：Development Evolution Characteristics of Gully Erosion in Typical Black Soil Region of Northeast China

作者：王文娟[1];邓荣鑫[2];张树文[3];岳书平[4]

第一作者：王文娟

机构：[1]河南财经政法大学资源与环境学院,河南郑州450002;[2]华北水利水电大学资源与环境学院,河南郑州450011;[3]中国科学院东北地理与农业生态研究所,吉林长春130012;[4]南京信息工程大学地理科学学院,江苏南京210044

第一机构：河南财经政法大学资源与环境学院

年份：2019

卷号：35

期号：4

起止页码：105-110

中文期刊名：地理与地理信息科学

外文期刊名：Geography and Geo-Information Science

收录：CSTPCD;;国家哲学社会科学学术期刊数据库;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

基金：国家自然科学基金青年科学基金项目(41601458);河南省高等学校青年骨干教师培养计划项目

语种：中文

中文关键词：沟蚀;土地利用;东北黑土区;侵蚀沟

外文关键词：gully erosion;land use;black soil region of Northeast China;gully

摘要：沟蚀是当前东北黑土区面临的重要环境问题。该文选择东北典型黑土区中的乌裕尔河和讷谟尔河流域作为研究区,以高分辨影像Corona(1965年)和SPOT5(2005年)为基础数据源,提取了不同时期的沟蚀分布状况,通过重心分析、方向性分析和热点分析,探讨了研究区40年间侵蚀沟发育演化特征。结果表明:研究区沟蚀重心出现向西北移动的趋势,纬向上向北移动了17.88km,经向上向西移动了10.12km;侵蚀沟重心的纬向移动方向与耕地重心的移动方向一致,这与毁草开荒带来的耕地面积增加有密切关系;1965年和2005年沟蚀发生的主要方向基本一致,沟蚀发生的朝向主要受该区水系走向影响,2005年沟蚀发生方向性椭圆范围相比1965年有较大规模扩展;1965年约60%的侵蚀沟处于随机分布的发展模式,到2005年约70%的侵蚀沟处于集聚分布的发展模式,侵蚀沟发展模式的转变导致黑土区沟蚀状况愈发剧烈。
Gully erosion is an important environment problem in the black soil region of Northeast China.Increasingly severe gully erosion had seriously affected on the economic and social sustainable development in this region.Therefore,Wuyuer River and Nemoer River basin,which was the typical black soil region in Northeast China,was chosen as the study area.Gully distribution data for the study area in 1965 and 2005 were extracted from Corona imagery and SPOT5 imagery respectively.Based on mean center analysis,directional distribution analysis and hot spot analysis,the development evolution of gully erosion in the study area in the past 40 years were discussed.Results showed that the mean center of gully erosion had a trend of moving to northwest.It moved northward by 17.88 km in latitude and 10.12 km westward in longitude.For the movement of mean center,the moving direction of gully erosion in latitude was consistent with land use,revealing that the mean center movement of gully erosion was closely related to the increase in cultivated land area caused by grassland reclamation.The main directions of gully erosion occuring in 1965 and 2005 were basically same,and the direction of gully erosion was mostly affected by the river distribution.The directional ellipse range of gully erosion in 2005 was larger than that in 1965.About 60% of the gullies were in the development mode of random pattern in 1965;however,about 70% of the gullies were in the development mode of clustering pattern in 2005.The change from random pattern to clustering pattern increased the risk of gully erosion in black soil region of Northeast China.