沙地樟子松球果产量的测报技术  

Prediction Techniques of Cone Production for Scotch Pine in the Sandy Area

作　　者：孙洪志[1] 石丽艳[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《东北林业大学学报》2004年第5期80-81,共2页Journal of Northeast Forestry University

摘　　要：通过对沙地樟子松连续 10a球果产量的调查与分析 ,根据当地的气象资料 ,采用因子筛选法和线性回归模型 ,建立了樟子松球果产量的测报模型。结果表明 :采用 6月份的温雨系数预测第二年成熟球果的产量 ,回归关系显著 ;采用 9月份的月均温预测第二年的成熟球果产量也有较好的吻合性。Through the continuous investigation and analysis of cone production for Scotch pine in the sandy area for ten years, the prediction models was established by using factor selection method and linear regression models according to the local climate materials. The result shows that there exists significant regression relationship using temperature and rain coefficient in June to predict the next year cone production, and it is also effective using average temperature in September to predict the next year cone production.

关 键 词：樟子松 球果产量 测报技术 

分 类 号：S791.253[农业科学—林木遗传育种]