非均匀网格环境下基于耕地质量与集中连片度的基本农田划定  

Prime farmland demarcation based on arable land quality and concentricity in non-uniform grid environment

作　　者：田惠文 张欣欣 毕如田[1] 闫晶 李广月 张婧 Tian Huiwen;Zhang Xinxin;Bi Rutian;Yan Jing;Li Guangyue;Zhang Jing(College of Resource and Environment,ShanXi Agricultural University,Taigu 030801,China)

机构地区：[1]山西农业大学资源环境学院,太谷030801

出　　处：《农业工程学报》2020年第3期254-262,F0003,共10页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国土资源部公益性行业项目(201411007);山西省研究生教育创新项目(2019SY234)。

摘　　要：基本农田的划定是保持耕地数量、提升耕地质量的有效途径。该文提出了在非均匀网格环境下,利用耕地集中连片度和耕地质量指数来划定和表达基本农田的方法。借助ArcEngine二次开发平台,构建非均匀网格和多尺度均匀网格,分析非均匀网格在耕地表达上的优势;从耕地集中连片度和耕地质量2方面对耕地空间布局进行综合评价;以山西省闻喜县为研究区开展实例验证,采用空间叠加的方法,划定和表达基本农田。结果表明:与均匀网格相比,非均匀网格在减少数据冗余的同时,实现了耕地信息的小误差表达;闻喜县基本农田的划定结果可满足“集中连片、质量好”的要求,基本农田的面积占耕地总面积的83.22%,划定比例符合国家规程;非均匀网格可以很好的表达基本农田的空间分布。该方法适用于基本农田的划定,为基本农田的精细化表达提供了新的思路。An important measure to ensure the national food security and improve the quality of arable land is to demarcate the prime farmland scientifically and reasonably.There are three types of evaluation units for delimiting prime farmland,mainly including administrative villages,plots and grids.Compared with the other two types,grid can not only break the constraints of irregular geographic data,improve the ability of data update and retrieval,but also integrate,share and use information resources,which is easy to locate in the space.In the current research field,the demarcation of prime farmland is generally carried out in a uniform grid environment.If using large-scale uniform grid,however,the area of small and scattered arable land will have a large error.Although using small-scale uniform grid can reduce the area error,there are other problems such as large amount of data and high redundancy.The advantages of non-uniform grid are obvious.Its data volume is far less than that of uniform grid,which effectively reduces the frequency of invalid data search.And,the efficiency of data retrieval and transmission can be improved.“Centralized and continuous,high quality”is the requirement of realizing the construction of prime farmland with high spatial standard.Therefore,the purpose of this paper is to establish a method to divide and express prime farmland by using arable land concentricity and arable land quality index with the non-uniform grid environment.Wenxi County of Shanxi Province is taken as the research area.The research methods of the paper are as follows:to construct non-uniform grid and multi-scale uniform grid with the help of Arc-Engine secondary development platform;Comparing the expression error of arable land area and the data amount of grid,and then analyzing the advantage of non-uniform grid in cultivated land expression.Focusing on the contiguous land and the quality of cultivated land evaluates the spatial distribution of cultivated land.The results show that the arable land is divided into perm

关 键 词：土地利用 分区 基本农田 非均匀网格 局部空间自相关 集中连片 

分 类 号：F301.21[经济管理—产业经济]