| 地域分异规律与北方农牧交错带的退耕还林还草 |
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| 引用本文： | 伍光和,王文瑞.地域分异规律与北方农牧交错带的退耕还林还草[J].中国沙漠,2002,22(5):439-442. |
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| 作者姓名： | 伍光和 王文瑞 |
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| 作者单位： | 1. 兰州大学 西北开发研究所, 甘肃 兰州 730000;2. 兰州大学 资源环境学院, 甘肃 兰州 730000 |
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| 基金项目： | 国家重点基础研究发展规划项目(G2000048705);中国科学院寒区旱区环境与工程研究所知识创新项目(CACX210026)资助 |
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| 摘 要： | 简要论述了北方农牧交错带的自然地理特征,评述了农牧交错带历史时期以来北移西进造成与自然地带的错位,过度垦殖不仅导致交错带本身的生态破坏,还对黄河流域下游及华北平原带来严重的负面影响。依据自然界的地域分异规律对交错带及毗邻地区还林还草进行了分区,并在退耕还林还草背景下,对"三北"防护林工程做了评价,指出东北西部、华北北部山地造林完全正确,而内蒙古和西北广大地域不宜造林,当务之急应该是制止植被破坏,保护沙生植被、荒漠草原和典型草原植被。并建议有关决策部门对"三北"防护林工程进行重新审视。
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| 关 键 词： | 地域分异规律 荒漠 荒漠草原 典型草原 农牧交错带 |
| 文章编号： | 1000-694X(2002)05-0439-04 |
| 收稿时间： | 2002-07-01 |
| 修稿时间： | 2002年7月1日 |
Regionalization and Revegetation in the Agricultural and Pasturing Interlaced Zone of China |
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| WU Guang-he,WANG Wen-rui.Regionalization and Revegetation in the Agricultural and Pasturing Interlaced Zone of China[J].Journal of Desert Research,2002,22(5):439-442. |
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| Authors: | WU Guang-he WANG Wen-rui |
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| Institution: | 1. Northwest China Developmental Institute of Lanzhou University, Lanzhou 730000, China;2. School of Resources and Environment, Lanzhou University, Lanzhou 730000, China |
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| Abstract: | Since the Warring States period the agricultural and pasturing interlaced zone of China has been shifting spatially resulted from population increasing, inhabitant change and climate variation. At last the interlaced zone moved to the northwest in general. The spatial change of the interlaced zone has resulted in the in accordance with the natural zone. Over grazing in this area not only destroyed the local eco-environment but also spread to the North China Plain. According to the natural zonalization the dividing for rational re vegetation in the agricultural and pasturing interlaced zone of China has been done. Based on the present status it was evaluated for the three Norths Shelter Forest Project. The project carried out in western Northeast China and northern North China was completely correct but incorrect in vast Northwest China areas. In Inner Mongolia and even the vast Northwest China areas the typical sand vegetation, desert steppe and steppe vegetation must be protected. So it is suggested to re evaluate the three Norths Shelter Forest Project. |
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| Keywords: | zonalization desert desert steppe typical steppe agricultural and pasturing interlaced zone of China |
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