摘要
本文以天山西部22个树轮年表为基础,进行年表对气候的响应函数分析,并选取10个稳定可靠的响应函数进行概要分析,发现3、5、6月降水是制约伊犁天山雪岭云杉年轮气候生长量的主要因子.典型相关分析揭示了5~6月降水场与年轮场间的密切相关性.5~6月降水与年轮的典型年的对比分析表明;北天山南坡云杉年轮气候生长量受该时段降水的影响大于南天山北坡.平均而言,在伊犁地区,5~6月降水每偏少10%,云杉年轮气候生长量偏少约6.2%;5~6月降水每偏多10%,云杉年轮气候生长量约偏多2.4%.
Using 22 tree-ring chronologies as a basis,doing response function analysis between tree-ring chronology and climate,selecting 10 stable and reliable response functions to do summary analysis,we find that the precipitation in March,May and June are the main factors which limit the tree-ring climatic growth of spruce in Yili area. Canonical correlation analysis point out a high correlation between the precipitation' field in May to June and the tree-ring field. The contrast analysis of typical yEars between the precipitation in May to Juneand tree-ring chronology show that the influence of the precipitation in the period on the tree-ring growth in'the south slope of north Tianshan mountain is greater than that in the north slope of south Tianshan mountain.On the averager,in Yili area,when the precipitation in May to June is 10% less than iiis mean,the treering'climatic growth of spruce is 6. 2% less than iiis mean. When the precipitation in May to June is 10%more than iiis mean,the tree-ring climatic growth is 2. 4% more than ii's mean.
出处
《新疆大学学报(自然科学版)》
CAS
1994年第4期93-98,共6页
Journal of Xinjiang University(Natural Science Edition)
关键词
响应函数
典型相关
年轮气候
生长量
云杉林
response function
summary analysis canonical correlation taee-ring climatic growth