摘要
根据中国土壤侵蚀面积高达 4 92万km2 ,占国土总面积的 51 2 % ,已严重的影响和制约国民经济的发展和社会的安定的实际情况 ,本文对土壤侵蚀形成的原因作了系统的分析 ,研究土壤侵蚀出现破坏土地资源、制约粮食增长、致使灾害发生、降低土壤肥力、污染水资源环境、淤积库容湖泊、危害城市安全等一系列的危害 ,从中可以知道土壤侵蚀是破坏生态环境最为关键的因素 ,以供决策部门提出最佳的综合防治措施 。
The total area of soil erosion, which is 51.2% of the national region, is 4.92 million km\+2 in China, The economic development and social stability is heavily influenced by the erosion. This paper analyses the formative factors and damage of soil erosion. All the damage includes damaging land resources, decreasing cereal production, inducing natural disaster, reducing soil fertility, polluting water enviroment, causing lakes and reservoir deposited and menacing cities et al. Overall, soil erosion is the key factor to damage ecosystem. With the conclusion above, it's useful for the government to prepare the best measures to prevent the erosion and reduce its damage.
出处
《首都师范大学学报（自然科学版）》
2000年第2期88-94,共7页
Journal of Capital Normal University：Natural Science Edition
基金
国家重点科技攻关项目!(96 0 0 4 0 5 12 )和 96 0 0 4 0 5 13
赴港合作项目
关键词
土壤侵蚀
成因
危害
水土保持
生态环境
中国
Soil erosion, cause, damage, soil and water conservation, environment.
