湖北农业科学2026，Vol.65Issue(6)：44-51,8.DOI:10.14088/j.cnki.issn0439-8114.2026.06.008
基于MaxEnt模型的四川省一季稻种植适宜性区划
Suitability zoning of single cropping rice planting in Sichuan Province based on maximum entropy(MaxEnt)model
摘要
Abstract
To provide a basis for the development layout and structural adjustment of the rice industry in Sichuan Province,the suitabil-ity distribution of single cropping rice(Oryza sativa L.)production was simulated using the maximum entropy model(MaxEnt)based on geographic information and relevant environmental variables of single cropping rice production in Sichuan Province,the main eco-logical factors affecting its production were identified,and the model accuracy with ROC curves was verified.The results showed that the model evaluation accuracy AUC was 0.931,indicating high simulation accuracy and reliable results.The dominant meteorological factors affecting single cropping rice production in Sichuan Province included minimum temperature in June,average temperature in September,annual average temperature,precipitation in September,annual precipitation,precipitation in July,and annual sunshine hours,and the dominant topographic factors were altitude and slope.Single cropping rice production in Sichuan Province was mainly distributed in the Sichuan Basin and Panxi region.The areas of marginally suitable,suitable,and most suitable regions were 90 268.84 km2,42 507.84 km2,and 2.14 km2,respectively.The most suitable and suitable regions were mainly located in the west-ern,southeastern,and northeastern parts of the Sichuan Basin,as well as the Jinsha River and Anning River Basins in the Panxi re-gion.The unsuitable region covered 354 021.06 km2,primarily distributed in the Garzê Tibetan Autonomous Prefecture and Aba Tibet-an and Qiang Autonomous Prefecture on the Northwest Sichuan Plateau,as well as parts of the Southwest Sichuan Mountainous Areas and the mountainous areas surrounding the basin.The zoning results of single cropping rice production suitability were consistent with the distribution of per-unit yield.关键词
一季稻(Oryza sativa L.)/MaxEnt模型/适宜种植区/主导生态因子/四川省Key words
single cropping rice(Oryza sativa L.)/maximum entropy(MaxEnt)model/suitable planting area/key ecological fac-tors/Sichuan Province分类
农业科技引用本文复制引用
邹雨伽,蒲长林,张玉芳..基于MaxEnt模型的四川省一季稻种植适宜性区划[J].湖北农业科学,2026,65(6):44-51,8.基金项目
四川省水稻复合灾害动态监测及评估技术研究项目(SCQXKJYJXZD202408) （SCQXKJYJXZD202408）
四川省气象局重点创新团队项目(SCQXZD-CXTD202403) （SCQXZD-CXTD202403）
长江流域粮油主产区主要作物气象灾害预警及防控关键技术研发与应用项目(2024YFD2301305) （2024YFD2301305）
四川省科普培训项目《气象防灾减灾宣传科普行》(2025JDKP0028) （2025JDKP0028）
