黄淮海平原兰考泡桐的气候生态区划

采用设置样地调查及多元统计分析方法，将气候因素从影响兰考泡桐生长的诸因素中分离出来，对黄淮海平原兰考泡桐进行了气候生态区划．结果表明，黄淮海平原兰考泡桐可划分为黄泛平原、淮北平原和海河平原３个气候生态区．由于这３个气候生态区在水热因子上的差异，导致兰考泡桐在生长上的明显差异．

Ecological Climate Division of Paulownia elongata in Huanghuaihai Plain

Based on sapmle-plot survey data and by means of multivariate statistical analysis method,the climate factor affecting P. elongata's growth has been seperated from other affecting factors and accordingly, the ecological climate regioms of P. elongata in Huanghuaihai Plain have been classified. The result shows that the main distrituting area of Huanghuaihai Plain can be divided into three ecological climate regions (Yellow River flood plain region,Huaibei plain region and Haihe plain region). It is the difference among these ecological climate regions in moisture and thermal resoures that have caused the distinct differences in P. elongata's growth.