摘要
低丘缓坡土地资源开发是缓解人地矛盾、优化土地配置的有效途径。以四川省泸县为例,首先界定了低丘缓坡土地资源的范围,提取低丘缓坡土地资源面积共计331.71km^2。然后基于Arc GIS空间分析模块,以生态用地保护为目的,选取土地覆盖类型与地形坡度为阻力因子,应用最小累计阻力模型建立泸县景观生态安全格局。通过与泸县低丘缓坡土地资源现状的叠加分析,对位于不同景观安全水平的低丘缓坡土地资源进行分类,将低丘缓坡土地资源分为优先开发型、适度开发型、限制开发型、禁止开发型4种类型,其面积分别为108.72、97.03、68.36、57.60km^2,并分析各类型特征,提出了相应的低丘缓坡土地资源开发利用规划,旨在为研究区生态安全策略以及低丘缓坡土地资源的合理开发与利用等提供科学参考。
The development and utilization of land resources were undertaken as an effective way to relieve the contradiction between increasing population and limited land,and also as an effective way to formulate optimize land distribution. Taking Luxian County which located in Sichuan province as a case study,the scope of low-slope hilly land resources was first defined in this study,and the extracted low-slope hilly land resources with an area of 331.71 km^2. Then,to achieve the goal of ecological land protection,land cover types and slope as resistance factors were selected,and the minimum cumulative resistance model was applied to build a comprehensive landscape security pattern of critical ecological land in study area,and all the works were based on the Arc GIS spatial analysis module. Based on the spatial overlay analysis of landscape security patterns and the land use status of low-slope hilly land resources in Luxian County by Arc GIS,the landscape ecological security levels of low-slope hilly land. Based on these levels were determined,low-slope hilly land resources were divided into the following four levels： priority,moderate,limited,and prohibited developments,their areas were 108.72,97.03,68.36,97.03 km^2,respectively. Afterwards,the characteristics of each resource type and proposed corresponding development and utilization plans for low-slope hilly land resources were analyzed.（ 1） Priority development resources aremainly composed of cultivated land and forest and unused land. This resource type has more settlements and mining sites than other types. Therefore,integrated renovation is required to repair cultivated land and the settlements and mining sites,based on related regulation and planning of land use in the study area,to promote the exploration of potential of low-slope hilly land resources and alleviate the pressure on construction land.（ 2） Moderate development resources are mainly composed of farmland; in order to resolve the competition between urban expansion and red line protection o
出处
《生态学报》
CAS
CSCD
北大核心
2016年第12期3646-3654,共9页
Acta Ecologica Sinica
基金
四川省国土资源厅科学研究计划(KJ-2015-5)
四川省软科学计划项目(2015ZR0121)
中国科学院成都山地灾害与环境研究所青年百人团队计划(SDSQB-2015-01)
关键词
低丘缓坡
景观安全格局
最小阻力模型
土地资源开发
low-slope hilly
landscape security pattern
minimum cumulative resistance model
land resources development
