Abstract:

For investigating tea plantation resources advantage of Guizhou mountainous area and layout reasonably pollution-free tea plantation area. Guiding County of Guizhou Province was selected as the study example, according to NY 5020-2001 tea planting environmental conditions of pollution-free food, issued by the ministry of agriculture, combined with this key data of land use data, remote sensing data, soil data, temperature, precipitation, light, DEM, the author used the spatial analysis and statistical method of GIS to establish the comprehensive evaluation index system of pollution-free tea garden, and build the appropriate and comprehensive evaluation model of tea plantation land. The results showed the area of tea-suitable planting garden was 1265 km2, accounted for 77.57% of the entire study area; the pollution-free tea plantation area covered 1232.51 km2, accounted for 75.57% of the total land area, which were met for the soil quality, climate and terrain conditions; the area of 128.71 km2, accounted for 7.89% of the total land area, were most suitable for pollution-free tea plantation. The above research can provide the scientific basis and assisted decision support for the implementation of the tea growing industry standard in specific regions, also bring reference to other regions of tea cultivation comprehensive assessment.