| 城市土地生态系统建设研究--以西安市为例 |
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| 引用本文： | 李晶,任志远.城市土地生态系统建设研究--以西安市为例[J].干旱区研究,2002,19(1):75-78. |
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| 作者姓名： | 李晶 任志远 |
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| 作者单位： | 陕西师范大学旅游与环境学院,西安,710062 |
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| 基金项目： | 教育部重大课题 (项目号 2 0 0 0ZDXM 770 0 12 ) |
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| 摘 要： | 城市是以土地为基础,以人为中心的自然社会经济复合系统,根据西安市城市土地利用类型,划分了50个土地生态元,18个土地生态子系统,建立西安市城市土地生态系统。由于城市的发展,每个土地生态单元都存在着一些问题,在仿自然原型的基础上,对其进行人与自然共同创造的设计,真正有利于西安市人地关系的协调与经济的可持续发展。
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| 关 键 词： | 城市土地生态系统 土生态区 西安市 土地利用类型 |
| 文章编号： | 1001-4675(2002)01-0075-04 |
Construction of Urban Land Ecosystems--A Case Study in the Xi'an Regin |
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| LI Jing,REN Zhiyuan.Construction of Urban Land Ecosystems--A Case Study in the Xi'an Regin[J].Arid Zone Research,2002,19(1):75-78. |
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| Authors: | LI Jing REN Zhiyuan |
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| Abstract: | The Xi'an region is located in the central Shaaxi plain, the climate is warm, precipiation is moderate, and the natural conditions are favourite. Xi'an occupies an important position in society, economy, agriculture, industry, high-tech industry, tourism, etc., in Shaaxi Province and even in China. However, the contradiction between land supply and demand is increasing with population growth and social and economic development, which results in the excessive land use, soil erosion, land degradation, etc. According to the land use types in the Xi'an region, in this paper the Xi'an region is divided into 50 eco-types in 18 land subecosystems so as to develop the urban land ecosystems in the Xi'an region. Each of the land ecosystems not only has its own characteristics but also the ecological environment problems. The ecological construction conception put forward in this paper is to improve the land use situation and to control the environment pollution so as to develop Xi'an as a "landlocked ecological city" with the moderate population density, rational land use, fine environmental quality, sufficient land ecosystems, complete infrastructure, and effective natural protection. All these are really advantageous for the coordination of the human-land relations and the sustainable development of the economy in Xi'an. |
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| Keywords: | land ecosystem land-ecological area |
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