黑龙江克拜黑土区50多年来侵蚀沟时空变化
收稿日期: 2005-06-06
修回日期: 2005-08-09
网络出版日期: 2005-11-25
基金资助
中国科学院知识创新工程重要方向项目 (KZCX2-SW-320-1)
Temporal and Spatial Variation of Erosion Gullies in Kebai Black Soil Region of Heilongjiang during the Past 50 Years
Received date: 2005-06-06
Revised date: 2005-08-09
Online published: 2005-11-25
Supported by
The key item of Knowledge Innovation Project of CAS, No.KZCX2-SW-320-1
闫业超, 张树文, 李晓燕, 岳书平 . 黑龙江克拜黑土区50多年来侵蚀沟时空变化[J]. 地理学报, 2005 , 60(6) : 1015 -1020 . DOI: 10.11821/xb200506015
The black soil resource of China is famous for its fertility, high organic content, and the best applicability for cultivation. The long-term human activities of over-reclamation and irrational cultivation resulted in water and soil loss on a large scale. Especially the erosion gullies incise the land surface, nibble the field, wash out the fertile soil and degrade the efficiency of the large cultivator. Erosion gully research is one of the important parts of soil erosion subject. In this paper, based on the Remote Sensing and Geographical Information System, taking Kebai area as a case study, using density of erosion gully as the main indicator, the authors analyzed the dynamic change of the erosion gully density, the variation of the erosion gully on different altitudes, slopes and aspects, as well as the variation in different morphogenetic regions, and finally revealed the rule of temporal and spatial variations of erosion gullies in recent 50 years in typical black soil area of Northeast China.
Key words： erosion gully; GIS; RS; black soil; Heilongjiang Province
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