| 全球荒漠化防治现状及发展趋势 |
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| 引用本文： | 王礼.全球荒漠化防治现状及发展趋势[J].世界林业研究,1994,7(1):10-17. |
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| 作者姓名： | 王礼 |
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| 作者单位： | 北京林业大学 |
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| 摘 要： | 文章在讨论了荒漠化定义的基础上,介绍了全球荒漠的分布状况和因荒漠化引起的经济损失情况,论述了荒漠化的主要危害,并针对干旱地区的不同地类,如旱作农地、灌溉农地、草地、林地分别提出了相应的荒漠化防治对策。
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| 关 键 词： | 荒漠化 干旱区 半干旱区 防治 |
| 收稿时间： | 8/3/1993 12:00:00 AM |
The State of Control and the Tendency of Development of the Global Desertification |
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| Wang Lixian.The State of Control and the Tendency of Development of the Global Desertification[J].World Forestry Research,1994,7(1):10-17. |
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| Authors: | Wang Lixian |
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| Institution: | Beijing Forestry University |
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| Abstract: | This paper gives the definition of desertification that has been owned universally in the world: "Desertification means the process of soil deterioration in the arid zone,semi arid zone and the dry semi-wet zone under the influence of various factors including climate and human activities." Based on this definition the desertified land in China is divided into two types:one is the sand desert resulting from sandy surface suffering from ftiequent drought,wind,and intensified land use.The other is desertified land due to erosion by running water plus repeated accumulation of earthlike matter(or weathered product) and intensified land use by human beings.The area of desertified land in China is 3.327 million ha,being 34% of the total territory.Of the desertified land,l.533 million ha is desertified sandy land,and l.794 million ha is desertified land resulting from water erosion.Almost four hundred million of people are threatened by the desertification.Based on domestic and foreign experience in desertification control,the author describes the integrated control system for the desertified unirrigated farm land,irrigated farm land,grassland and forest land.He points out that the global struggle against desertification is a struggle for human survival.Recommendations are made to streng then the cooperation and exchange between China and other countries in the desertification control.The Ministry of Forestry should strengthen the organization and management of the institutes set up for desertification control.The forest construction in arid zone,semi arid zone and dry semi-wet zone should be closely combined with desertification control. |
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