YANG Zi-sheng,HE Yi-mei.Soil Erosion of Cultivated Land in Mountainous Areas at China’s Southwest Border—A Case Study in Yunnan Province[J].Research of Soil and Water Conservation,2009,16(01):1-7.
中国西南边疆山区耕地水土流失研究——以云南省为例
- Title:
- Soil Erosion of Cultivated Land in Mountainous Areas at China’s Southwest Border—A Case Study in Yunnan Province
- Keywords:
- mountainous areas; soil erosion; soil erosion modulus; sloping cultivated land; Yunnan Province
- 分类号:
- S157
- 摘要:
- 水土流失是山区省份耕地（尤其是坡耕地）可持续利用的最主要障碍和影响因素。以已有的坡耕地水土流失试验观测和分析结果以及1996-2006年土地详查及变更调查耕地分类面积和各类耕地坡度分级面积为依据，结合水利部《土壤侵蚀分类分级标准》等相关规程和规定，综合测算了云南省1996-2006年全省不同坡度耕地和耕作方式的土壤流失量以及县域耕地土壤流失总量和土壤侵蚀模数（其中1996年和2006年为分县测算），分析了耕地水土流失的基本特点以及耕地水土流失造成的危害，提出了云南省耕地水土流失治理的对策措施，为制定省域水土保持规划、耕地保护规划及有关政策的科学决策提供基础依据。
- Abstract:
- Soil erosion has been a main obstacle and influencing factor of sustainable use of farmland (especially slope cultivated land) in mountainous province. In the paper, the amount of soil loss under different slopes and cultivation methods in the whole province in 1996-2006 and the total amount of soil loss and soil erosion modulus of cultivated land at county level in Yunnan Province in 1996 and 2006 had been synthetically measured and calculated based on experiments of soil erosion in the past and the detailed investigation of land use and its change survey in 1996-2006 in Yunnan Province, combining Standards for Classification and Gradation of Soil Erosion formulated by the Ministry of Water Recourses of PRC in 1997. In addition, the authors had approached the basic characteristics of soil erosion on cultivated land, analyzed its harms to the sustainability of cultivated land use, and put forward the countermeasures of controlling soil erosion on cultivated land in Yunnan Province. This study has provided a basis for working out the future soil and water conservation planning and farmland protection planning as well as making rational policies of sustainable use for cultivated land in this province.
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备注/Memo
收稿日期:2008-2-17。
基金项目:国家自然科学基金资助项目（40861014）；云南省应用基础研究计划资助项目（2007G078M）
作者简介:杨子生（1964- ），男，云南大理人，博士后，教授，主要从事土地资源与土地利用、土壤侵蚀与水土保持、国土生态安全与区域可持续发展等领域的研究工作。E-mail：yangzisheng@126.com