Abstract:

In order to guide and deepen the regional division of peanut production in Yungui Plateau , use of agricultural resources reasonably and efficiently and provide the theoretical basis for improving the quality of peanut products, the characteristics of production and quality of peanut in Yungui Plateau were studied based on GIS technology and the methods of mathematical statistics. The result showed that peanut planting in the Yungui Plateau is mainly distributed in the hilly areas bellow 1600 meters, the dam areas and the valley basins which belong to the valley of Nanpan river, Jinsha river, Nu river, Wu river and Qingshui river. In the peanut production there were some problems such as the single planting species of peanut, serious degradation of species characteristics, management extensive, low unit yield and weak of peanut processing. Influenced by ecological conditions, the qualities of peanut belong to the region in which the peanut had the medium protein content in consumption and low fat content in oil, furthermore the O/L of the peanut was relatively high. In the spatial distribution, the protein content and fat content of peanut was higher in the east and in the north-west of the region, and he O/L of the peanut increased from east to west to east and was the same trend form north to south. Meanwhile the peanut quality was related to the elevation, and the value of the quality indexes decreased with the increasing altitude. The peanut qualities have affected by large vertical terrain elevations and stereoscopic climate