Abstract:

The objective of this study is to establish an applicable synthetical evaluation method on climatic suitability of new planting areas of Dongzao jujube, and provide theoretical for expand of planting areas and divisions of ecology and production. Based on building climatic ecological field of Dongzao ideal site, climatic suitability of new planting areas of Dongzao jujube in Shanxi province and original production areas (Zhanhua county of Shandong province and Huanghua county of Hebei province) was evaluated comprehensively by grey system theory. The results showed that: the climate of low-hills along the bank of yellow river of south Shanxi province for planting Dongzao jujube was the best in the experiment, followed by Yuncheng basin and Linfen basin, but the climate of Jinzhong basin and Xinzhou basin were not favorable, but climatic suitability of original production areas of Dongzao- Zhanhua county of Shandong province and Huanghua county of Hebei province was the best. The results were identical to practice of production. The areas along the bank of yellow river of south Shanxi province and Yuncheng basin and Linfen basin were good for popularizing and planting for Dongzao. The Jinzhong basin and Xinzhou basin was not suitable for planting Dongzao. The application results that using grey system theory in the evaluating climatic suitability of new planting areas of Dongzao is simple, practical and reliable.