| 摘要: |
| ［目的］生态用地是构建区域生态安全格局的基础，对区域可持续发展具有重要意义。结合国家实施的“全国主体功能区规划”、“多规合一”方案，在总结前人相关研究成果的基础上，对生态用地进行概念界定与分类； 在分类基础上以云南省泸水县为例，选取地质灾害规避、土地防护、水资源安全、公路防护带建设、生物多样性保护5个指标因子进行生态用地重要性评价。［方法］利用GIS空间分析方法，叠加5个因子图层得到区域生态用地重要性分级及空间分布。［结果］提出增加生态用地为土地利用类型，将生态用地分为13个二级地类，调整后的土地利用类型为8个一级地类和46个二级地类； 且二级地类在保持与原相关分类一致的前提下，重新归类。更好地与原分类进行了衔接，分类可实施性较强。评价结果分为4个等级。［结论］结果符合泸水县生态用地功能特征，在土地分类实践中具有一定的理论意义，在区域用地规划中有一定的参考性。 |
| 关键词: 生态用地 土地利用分类 生态用地评价 关键性生态用地 规划 |
| DOI：10.7621/cjarrp.1005-9121.20170507 |
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| 基金项目: |
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| IMPORTANCE ASSESSMENT OF COUNTY-SCALE ECOLOGICAL LAND BASED ON GIS——A CASE STUDY IN LUSHUI COUNTY |
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Li Yimin1,2, Ding Yang3, Wei Suhang1,2
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1.School of Resource Environment and Earth Science, Yunnan University;2.Yunnan Institute of Geography, Kunming 650091, China;3.College of Tropical Agriculture and Forestry, Hainan University, Haikou570228, China
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| Abstract: |
| The ecological land is the basis to constitute the regional ecological security, and has a great significance on the regional sustainable development. Based on the planning program of "The National Main-function Zones" and "The Integrated Planning", by overviewing former related studies, this paper defined and classified the ecological lands in Lushui county, Yunnan province.5 key factors (i.e., geological disaster avoidance, land protection, water security, highway protection and biodiversity conservation) were selected to carry out the importance assessment, and then the level and spatial distribution of critical eco-land were obtained by overlapping 5 layers together using GIS method. The results showed that the eco-land was classified into 13 secondary land use types. The adjusted land use was classified to 8 top-level and 46 secondary land use types. The new classification can be well matched the original classification and be operated easily. The results can provide a theoretical significancefor land classification and regional land use planning. |
| Key words: eco-land land use classification assessment of eco-land critical eco-land planning |
