关键词: GIS, 辣椒, 气候适宜性, 区划

Abstract: Pepper is a vegetable and condiment in daily life, and also raw material for medicinal and chemical industry. It has the function of invigorating stomach, helping digestion and lowering blood sugar. It is of important guiding significance to study the climatic suitability of Capsicum annuum for producing high quality and high yield pepper and rational distribution of its production. Based on the climate data of 84 meteorological stations in Guizhou province, this paper selected the average temperature, sunshine hours, precipitation and other climatic factors from July to August as Capsicum annuum planting suitable climate zone index, constructed space distribution model of each climate index regional planning on Guizhou province Capsicum annuum planting climatic suitability by ArcGIS spatial analysis. The results showed that the most suitable planting area for Capsicum annuum in Guizhou Province mainly concentrated in Zunyi Region, Tongren Region and the central part of Guizhou province. And the suitable areas were mainly distributed in central and southern parts of Guizhou province. The next suitable planting areas were mainly distributed in west, southwest and east parts of Guizhou Province. The unaptitude areas were mainly concentrated in southwest and southern parts of Guizhou province. According to the zoning results, various parts of Guizhou province could fully utilize the local climatic resources, reasonably adjust the industrial structure, improve the climate suitability index of capsicum annuum, and provide scientific guidance for chili planting and production.

Key words: GIS, Capsicum annuum L., climate suitability, regional planning