Abstract:

To optimize the plantation structure of winter wheat in Jiangsu Province, using the climatic data and yield data of wheat during 1961-2010. Firstly, preliminary climatic regions were made based on K-Means Cluster Analysis in this paper. Then, a comprehensive climate evaluation model of winter wheat was established with the grey relational analysis. At last, the comprehensive evaluation value was used for the climatic division. Results showed that, quality wheat suitable planning area in Jiangsu Province was divided into four regions: the weak gluten wheat planning region, medium weak gluten wheat transition region, medium strong gluten wheat transition region and strong gluten wheat planning area. By using the principles of geographical information system, the wheat climatic regionalization with meteorological factors and ecological factors was regarded to be more precise, accurate and more instructive.