摘要
永久基本农田划定是保护优质耕地、控制建设用地占用优质耕地的有效手段,也是高标准农田建设的基础。本文提出了一种基于优劣解距离法(Technique for order preference by similarity to an ideal solution,TOPSIS)和局部空间自相关的永久基本农田划定方法,从耕地的自然禀赋、区位条件、建设水平和生态景观条件4个角度出发,构建较全面的综合质量评价体系,借助TOPSIS法对耕地综合质量进行评价;引入空间聚类的思想对耕地综合质量进行局部空间自相关分析;最后,依据各区域的耕地综合质量及空间聚类特征,将符合要求的耕地划入永久基本农田。以河北省高碑店市为研究区开展实证研究,结果表明,该方法划定的永久基本农田较合理,划定永久基本农田面积为339.61 km2,占高碑店市耕地总面积的81.75%,划定比例达到国家相关规程要求。本文在耕地质量评价中加入生态景观因素,并结合最佳距离阈值和改进的反距离空间权重矩阵的空间聚类方法,为永久基本农田划定提供了新思路。
Protecting cultivated land is to protect the foundation of development and ensure the food safety in China. Permanent basic farmland is an effective method to prevent the high-quality cultivated land from occupying by construction land, but also the basis for the construction of high standard farmland. At present, it is urgent to implement the strictest protection for cultivated land resources in China. A method for the determination of permanent basic farmland was proposed, which was based on TOPSIS and local spatial autocorrelation. Firstly, four aspects of cultivated land were considered to structure the all-round comprehensive quality evaluation system. Secondly, TOPSIS was chosen to evaluate the comprehensive quality of cultivated land. On this basis, the spatial clustering was joined, and the comprehensive quality of cultivated land was analyzed. According to the characteristics of local spatial autocorrelation type, the zoning rules were formulated. Finally, according to the comprehensive quality of cultivated land and the spatial clustering characteristics, the satisfactory cultivated land were classified into permanent basic farmland, and suggestions for protecting permanent basic farmland were provided. The new method was illustrated by using Gaobeidian country, Hebei province as a case study. According to the results, TOPSIS and local spatial autocorrelation were used, combined with the comprehensive quality of cultivated land and their spatial clustering characteristics, the former three types of cultivated land were classified as permanent basic farmland, the area of the permanent basic farmland in Gaobeidian was 339.61 km^2, the area ratio was 81.75% , which achieved the relevant state regulations. Finally, three aspects of management suggestions to permanent basic farmland were proposed, which were ＂make laws, strict supervision ＂ , ＂ careful selection, expand investment ＂ and ＂ strengthen education, give encouragement＂. The ecological landscape factors were added into the quality evaluation of cultivated land, and combined the spatial clustering method which was based on the optimal distance threshold and the improved distance spatial weight matrixes, and it provided a new way for the permanent basic farmland.
作者
杨建宇
张欣
徐凡
马瑞明
朱德海
YANG Jianyu;ZHANG Xin;XU Fan;MA Ruiming;ZHU Dehai(College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China;Key Laboratory for Agricultural Land Quality Monitoring and Control, Ministry of Land and Resources, Beijing 100035, China)
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2018年第4期172-180,共9页
Transactions of the Chinese Society for Agricultural Machinery
基金
国土资源部公益性行业科研专项(201511010-06)
关键词
耕地综合质量
TOPSIS法
局部空间自相关
永久基本农田划定
cultivated land comprehensive quality
TOPSIS
local spatial autocorrelation
permanent basic farmland designation
