| 湖南省水土流失及其危害 |
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| 引用本文： | 贺建林.湖南省水土流失及其危害[J].生态环境,2000,9(4):266-269. |
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| 作者姓名： | 贺建林 |
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| 作者单位： | 湘潭师范学院地理系．湖南 湘潭 411201 |
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| 基金项目： | 国家社会科学基金项目(99BZS021)和湖南省教委重点科研项目(99A09) |
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| 摘 要： | 目前湖南省水土流失面积已由50a前的1.87万km2增加为4.40万km2，占全省土地总面积的20.8％。水土流失为中等以上的县市占全省的比例达到了60％。湖南省水土流失以面蚀为主，水土流失日趋严重。水土流失主要有以下危害降低土壤肥力，加剧旱洪灾害尤其是湖区的洪涝灾害，降低水利工程效益和阻碍水上交通。由此可见，水土保持工作不仅关系到湖南山区的经济发展和广大山区人民的脱贫致富，还关系到保护环境、资源和洞庭湖区的长治久安问题。
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| 关 键 词： | 水土流失 危害 水土保持 措施 湖南省 |
| 文章编号： | 1008-181X(2000)03-0266-04 |
| 修稿时间： | 2000年5月25日 |
Soil and Water Loss and Its Dangers in Hunan Province |
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| HE Jian-lin.Soil and Water Loss and Its Dangers in Hunan Province[J].Ecology and Environmnet,2000,9(4):266-269. |
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| Authors: | HE Jian-lin |
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| Abstract: | Soil and water loss area in Hunan province has increased to 4.4×104 km2 at the moment from 1.87×104 km2 50 yearsago. That is 20.8% of all area in Hunan province. That soil and water loss is becoming stronger day by day and has the main following dangers: to reduce soil fertility, to aggravate flood and drought disasters especially flood in Dongting lake area, to reducebenefit of water conservancy projects and to block the water traffic. Thus, soil and water conservation works are related to not onlyeconomic development of mountain area in Hunan province, but also environmental and resources protection, and the safe and rich in Dongting lake area. |
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| Keywords: | soil and water loss dangers soil and water conservation countermeasure Hunan province |
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