【摘要】 为了排除相关系数与相似系数均具有对称性的弊端，遵循气候影响有主有次的非等同性规律，本文利用灰色关联理论，着眼于不同地点之间的相互影响，划定了冬麦北移气候区。灰色关联度兼有相关和相似的内涵，同时突破相关和相似的对称性的约束。这些都真实地反映了气候关联性规律，更具有实用性。更多还原

【Abstract】 in order to eliminate the symmetry abuse of the correlation coefficient and the similarity coefficient, and follow the non-equation law of the climate effect, the authors utilized the grey relation law to line out the region of winter wheat’s northing boundary in Liaoning Province. The grey relation coefficient not only has the meaning of both the correlation coefficient and the similarity coefficient, but also breaks through their symmetry, truly reflects so it truly reflects the climate relativity.更多还原