| 陕北风沙区景观格局分析 |
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| 引用本文： | 彭茹燕,张慧芝,哈斯,王志.陕北风沙区景观格局分析[J].干旱区研究,2005,22(1):51-56. |
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| 作者姓名： | 彭茹燕 张慧芝 哈斯 王志 |
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| 作者单位： | 国土资源部,土地整理中心,北京,100035;北京师范大学中国沙漠研究中心,资源学院,北京,100875;中国科学院,新疆生态与地理研究所,乌鲁木齐,830011;北京师范大学中国沙漠研究中心,资源学院,北京,100875 |
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| 基金项目： | 国家“十五”攻关项目 (2 0 0 2BA5 1A0 42 0 0 2BA5 1A13 ) |
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| 摘 要： | 陕北风沙区地处农牧交错带，气候干旱，是一个从沙区向黄土区的过渡区，自然环境复杂、恶劣。区内景观类型简单，半流动沙地、流动沙地占据了主体，是一种典型的沙地景观格局。水是区域景观发展的一个重要因素，绿色景观滩地、草地、林地仅有14．7％，显示出区内生产力低，生态环境脆弱。人为景观成为区域内仅次于沙地的景观大类，区内自然的景观格局正受到人类的强烈干扰。这种区域环境的过渡性及脆弱性，导致了区域景观结构的不稳定性与敏感性。
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| 关 键 词： | 景观格局 沙地 陕北 风沙区 |
| 文章编号： | 1001-4675(2005)01-0051-06 |
Analysis on the Landscape Patterns in the Sand Drift Areas in North Shaanxi Province |
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| PENG Ru-yan,ZHANG Hui-zhi,Hasi,WANG Zhi.Analysis on the Landscape Patterns in the Sand Drift Areas in North Shaanxi Province[J].Arid Zone Research,2005,22(1):51-56. |
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| Authors: | PENG Ru-yan ZHANG Hui-zhi Hasi WANG Zhi |
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| Institution: | PENG Ru-yan1,ZHANG Hui-zhi2,Hasi1,WANG Zhi1 |
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| Abstract: | The sand drift areas in north Shaanxi Province are located in the agro-pastoral ecotone in the Loess Plateau. The vegetation here is sparse, the climate is semi-arid, the ecological environment is vulnerable, soil erosion and land degradation are serious, and these restrict seriously the local economic development. Moreover, the landscape types are sample, semi-mobile and mobile sandlands are dominant and are the typical sandland landscape patterns in the areas, and the area of green landscapes, such as the flood lands, grasslands and woodlands, occupies 14.7% only, which show that the productive forces are low and the ecological environment is vulnerable in these areas. Artificial landscapes are second only to the sandland landscapes, and the natural landscape patterns are seriously disturbed by human activities. How to deal with the relationship between human activities and the environment is directly related to human existence and development. |
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| Keywords: | landscape pattern sandland sand drift area Shaanxi Province |
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