主要气候因子对沿海防护林卷荚相思生长的影响

应用回归分析的方法,分析主要气候因子对沿海防护林卷荚相思树高、胸径生长的影响。结果表明,气候因子对沿海防护林卷荚相思树高生长的影响为年日照时数〉年最冷月平均气温〉月平均气温〉年最热月平均气温〉月均相对湿度;气候因子对沿海防护林卷荚相思胸径生长的影响为年日照时数〉月平均气温〉年最热月平均气温〉年最冷月平均气温〉月均相对湿度。其中,年日照时数、年最冷月平均气温、年最热月平均气温、月平均气温与卷荚相思树高和胸径的生长量有极显著的正相关关系。

Effects of Main Climatic Factors on the Growth of Acacia cincinnata in Coastal Shelter Forest

The regression method was used to analyze the effects of principal climatic factors on the growth of tree height and diameter at breast height of Acacia cincinnata in coastal protection forest.The results showed that the order for the effects of climatic factors on the tree height growth of A.cincinnata was that: annual sunshine hours > annual coldest month mean temperature > monthly mean temperature > annual hottest month mean temperature >monthly mean relative humidity.The order for the effects of climatic factors on the diameter at breast height growth of A.cincinnata was that: annual sunshine hours >monthly mean temperature>annual hottest month mean temperature > annual coldest month mean temperature>monthly mean relative humidity.Among them,annual sunshine hours,annual coldest month mean temperature,annual hottest month mean temperature,monthly mean temperature have a very significant positive correlation with the growth of A.cincinnata's height and diameter at breast height.