| 京郊农田防护林景观生态评价--以北京大兴县北藏乡为例 |
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| 引用本文： | 李春平,关文彬,范秀珍,赵廷宁,陈建刚,孙保平.京郊农田防护林景观生态评价--以北京大兴县北藏乡为例[J].林业研究,2003,14(2):135-140. |
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| 作者姓名： | 李春平 关文彬 范秀珍 赵廷宁 陈建刚 孙保平 |
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| 作者单位： | CollegeofSoilandWaterConservation,BeijingForestryUniversity,Beijing100083,P.R.China |
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| 基金项目： | This research was funded by a sub-program of the Ninth Five Years of China: tudy and demonstration of combating technique of sandy disasters in sub-humid-semi-dry zone，Yongding River Sandlot?(96-017-01-01). |
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| 摘 要： | Based on theories of protective forests and landscape ecology, the reasonableness of structures and patterns of shelterbelt system at Beizang Town, Daxing County, Beijing were analyzed and assessed from the two scales of forest belts and networks, by integrating uses of field investigation, GIS and RS techniques. Results showed that the existent main belt (3-12 m in width) was too narrow, while the assistant belt (3-27.1 m in width) was too wide; the species composition of the existent shelterbelts was single, and the structures and patterns of the shelterbelt system were unreasonable. It is suggested that the structure of the main and the assistant belts should be changed, such as increasing the width of main belts, decreasing the width of assistant belt, and planting more mixed species, and the pattern with arbores in the middle and shrubs in the sides of belts could be taken into account. For the landscape structure of forest network after regenerating or reconstruction, the grid number of closed network should be 13 per km2 and the minimum number of belts should be 34 per km2, This study also testified that integrating GIS and remote technique with landscape ecology could provide an effective method for reasonable reconstruction of the structures and patterns of shelterbelts system.
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| 关 键 词： | 北京 大兴县 农田防护林 景观生态学 林带结构 生态景观 评价 |
| 收稿时间： | 14 March 2003 |
Assessment of landscape ecology of agricultural protection forest system at Beizang Town, Daxing County, Beijing |
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| Li Chun-ping,Guan Wen-bin,Fan Xiu-zhen,Zhao Ting-ning,Chen Jian-gang,Sun Bao-ping.Assessment of landscape ecology of agricultural protection forest system at Beizang Town, Daxing County, Beijing[J].Journal of Forestry Research,2003,14(2):135-140. |
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| Authors: | Li Chun-ping Guan Wen-bin Fan Xiu-zhen Zhao Ting-ning Chen Jian-gang Sun Bao-ping |
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| Institution: | (1) College of Soil and Water Conservation, Beijing Forestry University, 100083 Beijing, P.R. China |
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| Abstract: | Based on theories of protective forests and landscape ecology, the reasonableness of structures and patterns of shelterbelt system at Beizang Town, Daxing County, Beijing were analyzed and assessed from the two scales of forest belts and networks, by integrating uses of field investigation, GIS and RS techniques. Results showed that the existent main belt (3-12 m in width) was too narrow, while the assistant belt (3-27.1 m in width) was too wide; the species composition of the existent shelterbelts was single, and the structures and patterns of the shelterbelt system were unreasonable. It is suggested that the structure of the main and the assistant belts should be changed, such as increasing the width of main belts, decreasing the width of assistant belt, and planting more mixed species, and the pattern with arbores in the middle and shrubs in the sides of belts could be taken into account. For the landscape structure of forest network after regenerating or reconstruction, the grid number of closed network should be 13 per km2 and the minimum number of belts should be 34 per km2. This study also testified that integrating GIS and remote technique with landscape ecology could provide an effective method for reasonable reconstruction of the structures and patterns of shelterbelts system. |
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| Keywords: | Beijing Shelterbelts Shelterbelt structure Ecology landscape Assessment |
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