石晓春 叶娇 王海云 吴洪宪

摘要 粮食生产功能区是国家为保障粮食安全和推进农业现代化而出台的一项重大政策。利用GIS空间分析技术，以广东省为例，结合地理国情数据，进行了省级粮食生产功能区划定方法研究。结果表明，广东省粮食生产功能区各分区面积占比分别为最适宜为77.92%、比较适宜为2.16%、基本适宜为18.89%、勉强适宜为1.03%;最适宜地类主要位于粤北的山地丘陵区、粤东和粤西沿海地区，基本适宜区主要位于珠江流域平原区;该方法可较科学地进行省级粮食生产功能区的划定，对優化农业生产布局和保障粮食安全具有重要现实意义。

关键词 GIS;粮食生产功能区;地理国情数据;广东省

中图分类号 P208  文献标识码 A

文章编号 0517-6611（2021）04-0237-04

doi：10.3969/j.issn.0517-6611.2021.04.063

Study on the Method of Delineating the Provincial Grain Production Special Zone Based on Geographical Conditions Data

SHI Xiao-chun，YE Jiao，WANG Hai-yun et al （Institute of Surveying and Mapping，Department of Natural Resources of Guangdong Province，Guangzhou，Guangdong 510500）

Abstract The grain production special zone is a major policy of China to ensure food security and to promote agricultural modernization.Using GIS spatial analysis technology，taking Guangdong Province as an example，we studied the provincial grain production special zone demarcation method by combining the geographical data. The results showed that the proportion of the area of each district in the grain production special zone of Guangdong Province was 77.92%，the more suitable was 2.16%，the basic suitable was 18.89%，and the ratio was 1.03% respectively. The most suitable categories were mainly located in the mountainous hilly areas of northern Guangdong，the eastern and western coastal areas of Guangdong;and the basic suitable areas were mainly located in the Pearl River Basin Plain Area. This method can be more scientifically demarcated at the provincial grain production special zone，which was of great practical significance to optimize the layout of agricultural production and ensure food security.

Key words GIS;Grain production special zone;Geographical conditions data;Guangdong Province

基金项目 广东省省级科技计划项目（2018B020207002）;广东省自然资源厅科技项目（GDZRZYKJ2020004）。

作者简介 石晓春（1976—），男，山西浑源人，高级工程师，硕士，从事自然资源调查监测应用研究。通信作者，工程师，从事摄影测量与遥感研究。

收稿日期 2020-07-03

粮食生产功能区是国家为保障粮食安全和推进农业现代化而出台的一项重大政策。为优化农业生产布局、聚焦主要品种和优势产区、实行精准化管理，党中央、国务院作出建立粮食生产功能区和重要农产品生产保护区（以下简称为“两区”）的重大决策部署。

近几年来广东省粮食产不足需，粮食市场对外依存度较高，工业化、城镇化发展与农业生产用地矛盾突出，进一步影响了广东省粮食自给水平和农业可持续发展。……