摘要
从生态安全和土地开发环境的角度选取9个测定指标,构建了农业开发适宜性评价体系,结合空间主成分分析法评价了衡阳县的农业开发适宜性。结果表明:基于生态安全和土地开发环境测定指标,利用空间主成分分析法分析农业开发适宜性是合理有效的。衡阳县农业开发适宜性良好,中部和南部农业开发适宜性高,东部、西南部和北部农业开发适宜性低。极度适宜区和高度适宜区集中连片分布在衡阳县中部和南部,分别占总面积的19.51%和18.97%,是衡阳县农业发展的核心区域。中度适宜区集中分布在衡阳县东南部和西部,占总面积的18.65%。低度适宜区和不适宜区集中分布在衡阳县东部、西南部和北部,分别占总面积的20.99%和21.89%。地形地貌是造成衡阳县农业开发适宜性空间分异的根本原因。
From the perspective of ecological security and land development environment,9 determination indicators were selected to construct the agricultural development suitability evaluation system.Evaluation system,spatial principal component analysis method was combined to evaluate the agricultural development suitability of Hengyang County.The results show that it is reasonable and effective to use the spatial principal component analysis method to analyze the suitability of agricultural development based on ecological security and land development environment determination index.Agricultural development suitability of Hengyang County is good.The agricultural development suitability of the central and south of Hengyang County is high.The agricultural development suitability of eastern,western and northern is low.The extreme suitable area and highly suitable area concentrated contiguous distribution in the central and southern of Hengyang County,respectively.They account for 19.51%and 18.97%of the total area,respectively and they are the core area of agricultural development in Hengyang County.Moderate suitable areas are concentrated in the southeast and west of Hengyang County,accounting for 18.65%of the total area.Low suitable areas and unsuitable areas are concentrated in the eastern,southwest and north of Hengyang County,accounting for 20.99%and 21.89%of the total area,respectively.Landform is the fundamental cause of spatial differentiation of agricultural development suitability in Hengyang County.
作者
罗改改
陆禹
LUO Gaigai;LU Yu(The First Surveying and Mapping Institute of Hunan Province,Changsha Hunan 410118;Central South Inventory and Planning Institute of National Forestry and Grassland Administration,Changsha Hunan 410014)
出处
《国土资源导刊》
2022年第2期53-58,共6页
Land & Resources Herald
基金
湖南省重点研发项目“乡村生态宜居景观和绿色基础设施数字化营造技术研究与示范”(2018NK2052)。
关键词
农业开发适宜性
生态安全
土地开发环境
空间主成分分析法
衡阳县
suitability of agricultural development
ecological safety
land development environment
spatial principal component analysis method
Hengyang County
