基于改进灰靶模型的区域土地利用冲突强度诊断——以南昌市为例

发布时间：2018-05-24 00:17

本文选题：PSR模型 + 灰靶模型　；参考：《江西农业大学学报》2017年06期

【摘要】：评估区域土地利用冲突强度,揭示引起冲突的内在机理,对促进区域可持续健康发展具有重要意义。以南昌市为例,基于PSR模型构建了区域土地利用冲突强度诊断指标体系,并引入指标权重对传统灰靶模型进行改进,构建基于熵权的改进灰靶模型,进而对南昌市2006—2015年土地利用冲突强度进行诊断。结果表明:(1)2006—2015年,南昌市土地利用冲突压力靶心度值持续增长且变化率不断加大,表明南昌市城市化进程在不断加快,发展势头强劲,同时给土地利用带来一定压力。(2)南昌市土地利用冲突强度在波动中呈缓慢增强的趋势,综合靶心度值由2006年的0.796上升至2015年的0.828,变化率仅为3.86%,得益于全市在推进城市化进程中对土地生态环境的重视。(3)与加权函数法相比,改进灰靶模型得到的靶心度值的变化趋势与其基本一致,说明改进灰靶模型也能够用于土地利用冲突强度诊断,为该类问题的研究提供参考。
[Abstract]:It is of great significance to evaluate the intensity of regional land use conflict and reveal the internal mechanism of the conflict to promote the sustainable and healthy development of the region. Taking Nanchang city as an example, the index system of regional land use conflict intensity diagnosis is constructed based on PSR model, and the index weight is introduced to improve the traditional grey target model, and an improved grey target model based on entropy weight is constructed. Furthermore, the paper diagnoses the intensity of land use conflict in Nanchang City from 2006 to 2015. The results show that from 2006 to 2015, the pressure target value of land use conflict in Nanchang City continued to increase and the rate of change increased, indicating that the urbanization process of Nanchang City is accelerating and the development momentum is strong. At the same time, it brings some pressure to land use. (2) the intensity of land use conflict in Nanchang shows a tendency of increasing slowly during the fluctuation. The comprehensive target centroid value increased from 0.796 in 2006 to 0.828 in 2015, and the change rate was only 3.86, thanks to the importance attached to the ecological environment of land in the process of urbanization in the whole city. The change trend of the target centroid value obtained by the improved grey target model is basically consistent with that of the grey target model, which indicates that the improved grey target model can also be used for the intensity diagnosis of land use conflict, which provides a reference for the study of this kind of problem.
【作者单位】：江西农业大学国土资源与环境学院/江西省鄱阳湖流域农业资源与生态重点实验室;
【基金】：江西省科技重大专项(20114ABG01100) 江西省教育厅科技项目(GJJ150421)~~
【分类号】：F301.24

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