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。
The ecological land is the basis to constitute the regional ecological security, and has a great signifi- cance 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 pro- tection, 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.
出处
《中国农业资源与区划》
CSCD
北大核心
2017年第5期48-56,共9页
Chinese Journal of Agricultural Resources and Regional Planning
基金
国家自然科学基金项目"基于3S技术的怒江峡谷农业产业结构调整与生态修复互动研究"(41161070)
云南省科技惠民项目"云南怒江流域精细化地质灾害气象预警系统研究及示范"(2013CA014)
云南省自然科学基金项目"怒江州产业结构变化及其生态环境效应研究"(2013FZ001)
