Analysis And Application Of Agricultural Climate Resources In Guizhou Province

In order to make better use of the abundant agricultural climate resources of Guizhou province,apply to the research and meteorological service of local characteristic agricultural products,and provide scientific basis for the adjustment of agricultural structure.Based on the interpolation calculation of agricultural climate resources in Guizhou province,this paper generates the basic layer that can be applied to various methods of climate resource correlation analysis and studies,and gives some analysis and applications.This article used site information and climate data from 1981 to 2010 of 83 meteorology stations in Guizhou province.A variety of agricultural climatic resources elements grid data and layers in different time scales(mainly by month,season and year)including average temperature,accumulated temperature,precipitation,sunshine duration,precipitation days,are calculated through ANUSPLIN and ARCGIS.And the distributions of common climatic resource elements were analyzed.Then,10 climatic indicators were selected,and the weight of each indicator was determined by the analytic hierarchy process(AHP).Layers were superimposed according to the weight coefficient to obtain the comprehensive division of agricultural climatic resources in Guizhou province.Then,two application examples were given.It is showed that Most of the scores of the comprehensive regionalization of the whole province are between 0.35 and 0.75,showing an increasing trend from northeast to southwest.Among them,the comprehensive score of relatively high altitude in the west and north of the province is below 0.45,most regions of the province is 0.46 ~ 0.65,and the valley in the south is over 0.65.Based on the simple analysis of the climatic suitability of vegetables,the distribution of zucchini which crop indexes is known was analyzed by the direct superposition of indicator layers and chives which is difficult to find indexes was analyzed by the calculation of similarity distance.Based on the existing agro-climatic resources of the whole province,the map of climatic zone and agro-climatic resources of Zhenning county was extracted and processed to provide reference for the decision-making of the government and agricultural departments.