期刊
ENVIRONMENTAL SCIENCE & POLICY
卷 13, 期 8, 页码 793-800出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envsci.2010.07.004
关键词
Black soil; Soil erosion; Control; China
资金
- State Key Laboratory of Hydroscience and Engineering [sklhse-2008-B-01]
- Found of Key Laboratory of Yellow River Sediment Research, MWR [2009002]
- China Institute of Water Resources and Hydropower Research [IWHR02009009]
The black soil region in Northeast China is an important region for cereal grain production in the country. However, several decades of overexploitation and unsustainable land use practices have caused substantial loss of soil and soil productivity. The dominant soil erosion processes in the black soil region are water, wind and meltwater erosion, of which water erosion on the slope farmland is the major contributor to soil erosion. According to landforms and characteristics of soil and water loss, the black soil region of Northeast China can be classified as the rolling hill area, the low mountain hill ravine area, and the farming-pastoral area. As a result, land use strategies, including the Three Defense Lines control pattern, the Pyramid Style control pattern, and the control pattern of Minimum Exploiture and Maximal Protection, are proposed for the three respective areas. Moreover, conservation tillage and participatory management are the promising measures that have not been widely implemented in the black soil region until now. (C) 2010 Elsevier Ltd. All rights reserved.
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