湖南省山地气象要素时空变化和杉木生长的灰色关联分析

ANALYSIS OF GREY RELEVANCE ON CHANGGE OF THE TIME/SPACE OF THE METEOROLOGICAL ELEMENTS WITH THE CHINA-FIR GROWTH OF MOUNTAINOUS LAND IN HUNAN

我们根据湖南省主要山系(雪峰山、井岗山)不同海拔高度杉木中幼林的高、胸径、材积生长量和相应气象要素的平行观测资料,并采用灰色系统分析方法分析,从中得出:(1)湖南山地旬降水量和旬日照时数变化对杉木生长的关系不太密切;(2)旬日最高气温≥30℃天数的变化对杉术生长的影响不大;(3)旬平均气温、旬平均最高气温、旬平均最低气温、旬平均相对湿度和杉木生长的关系密切。

Depending on the parallel observation of growth quantity of middle and young China-fir forests with their corresponding meteorological elements and using analytical method of grey system,analysis showed that: 1 change of the precipitation, the sunshine time of decade and the days of decade maximum air temperature≥30℃ in mountain of Hunan province is not close related with the growth of China-fir forests; 2, decade mean of air temperature, its maximun and minimun, and relative humidity is close related with the growth of China-fir forests.