HUANG Jin-guo.Current Situation of Soil and Water Loss and Control Countermeasure in North Karst Mountain Area of Guangdong Province[J].Research of Soil and Water Conservation,2007,14(05):78-80,102.
粤北岩溶山区水土流失现状与治理对策
- Title:
- Current Situation of Soil and Water Loss and Control Countermeasure in North Karst Mountain Area of Guangdong Province
- 分类号:
- S157.1
- 摘要:
- 粤北岩溶山区是广东省水土流失严重的地区之一，水土流失面积达2 753.3 km2。水土流失是由脆弱生态环境及人类破坏森林、陡坡开垦、过度放牧及工程建设等共同作用的结果，严重的土壤侵蚀使土壤层变薄、肥力下降、水利工程淤积及寿命缩短、旱涝灾害加剧。针对粤北岩溶山区水土流失的现状和成因，提出了水土流失综合治理对策。
- Abstract:
- The north karst mountain area of Guangdong is one of the main region with serious soil and water loss,the area of soil and water loss is 2 753.3 km2.The soil and water loss is caused by fragile environment and human social-economic activities such as forestcutting,steep slope land cultivating and over grazing engineering constructing and so on.Serious soil erosion lead soil layer became thinner and its fertility reduced,irrigating works filled up and its using time shortened,and the drought and waterlogging disasters increased.According to the present situation and causes of soil and water loss,the countermeasure of comprehensive harnessing soil and water loss is put forward.
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备注/Memo
收稿日期:2006-7-17。
基金项目:国家自然科学基金项目（30471421）
作者简介:黄金国（1967- ），男，湖南桃源人，副教授，主要从事水土保持与农业资源利用研究。