青海省互助县北山森林公园树轮宽度特征的气候因子分析

使用SPSS统计学软件和EXCEL的数据处理功能对青海互助北山国家森林公园云杉树轮数据进行统计学及树轮气候学分析,计算树轮宽度年表的主要特征参数,分析当地树木年轮序列对气候响应的敏感性,从中提取影响树木生长的气候信息,获取该地区近30年的气候因子分布规律,结果显示:北山国家森林公园的云彬树木年轮序列包含有较多的气候信息,气候因子是树木生长的限制因子;通过因子分析可知,近十年来的降雨量相对较少,气温增高导致蒸发量加大,该地区的树木的生长量有所减少.

The Analysis of Climate Factors from the Tree Ring Width Characteristics in Huzhu County Beishan Forest Park of Qinghai Province

Using EXcelland SPSS statistical software ,we analyzed the tree ring width data of Picea asperata in Beishan National Forest Park ,Huzhu County ,Qinghai Province from Statistics and tree - ring climatology .The main characteristic parameters of tree - ring width chronology were calculated and the sensitivity of local tree ring sequence responses to climate was analyzed .We have extracted the climate in-formation which effects tree growth and got climatic factor’s distribution of nearly 30 years in the region . The results showed that ：many weather information was included in Picea asperata tree ring sequences , Beishan National Forest Park ;Climatic factor is the limiting factor of trees growth ;Through factor analy-sis ,relatively little rainfall and increased evaporation due to increased temperatures were occurred over the past decade leading to slowly grow th of trees in the area .