影响角倍产量的主导气象因子研究

本文采用逐步回归法对角倍产量与它前期气象因子的关系作了主导气象因子的筛选,指出影响角倍产量的主要时期及主导气象因子是越冬若蚜速生期的极端气温;翅蚜出现期的平均气温;性蚜生育期的降雨量或湿度;干母生育期的平均气温。本文还提出,用主导气象因子建立的回归模式建行角倍产量预报和产地气候区划的可能性。

STUDY OF THE LEADING METEOROLOGICAL FACTORS AFFECTING THE YIELD OF CHINESE GALLNUT

By using the stepwise regression analysis of the relation between the yield of Chinese gallnut and its previous meteorological factors, some leading meteorological factors are determined. The results indicates: the leading meteorological factors in the yield-affected periods of Chinese gallnut are revealed to be extreme temperature in the fast-growing period of the overwintered nymph; mean temperature in the emergence period of the alatae; rainfall amount and humidity in the development period of the sexuales and even temperature in the development period of the fundatrices . It also points out that there is a great possibility for forecasting the yield of Chinese gallnut and making climatic division of the producing regions with the regression model established.