摘要
[目的]为了进一步了解不同种源的樟子松在帽儿山地区的生长差异,研究该地区气候因子对樟子松径向生长的影响,本文建立了来自于阿尔山、高峰、红花尔基、卡伦山、图强罕达盖和金山等7个种源樟子松树轮年表。[方法]通过年轮-气候响应分析、相关分析、主成分分析,探讨了不同种源樟子松径向生长与气候因子的响应差异。[结果]表明:7个种源地樟子松树轮年表整体变化趋势基本相似,但局部也有不同之处,除图强种源外,其余6个种源地樟子松在生长初期年轮宽度呈增加趋势。阿尔山、高峰、红花尔基和卡伦山种源地樟子松径向生长与当年2月平均温度显著正相关,罕达盖种源地樟子松径向生长与前一年4月平均温度显著正相关;高峰、图强、卡伦山种源地樟子松径向生长与当年6月降水显著正相关,阿尔山、高峰、金山、卡伦山、红花尓基、图强种源樟子松的径向生长主要与前一年8月降水显著负相关。[结论]多数种源的樟子松在初期径增长较快,与当年2月份的温度和6月份的降水量有正相关的响应性,而与前一年8月份的降水量有负相关的响应性。
[Objective]To understand the difference in growth of Scots pine （Pinus sylvestris var.mongolica）prov-enances at Maoershan area,Heilongjiang Province in Northeast China,and to study the climate factors’influence to the width growth of Scots pine.[Method]By tree ring and climatic response analysis,correlation analysis and principal components analysis,the response differences between tree rings and climatic factors were conducted. [Result]Results showed a similar trend of the tree rings from different Scots pine provenances in the study area.A-mong 7 provenances,the ring width of six provenances showed an increasing trend in the initial stage.The radial growth of provenances from Aershan,Gaofeng,Honghuaerji and Kalunshan had significantly positive correlation with the temperature in current February.The radial growth of provenance from Handagai had significantly positive correlation with the temperature in last April.The radial growth of provenances from Gaofeng,Tuqiang and Kalun-shan had significantly positive correlation with monthly precipitation in current June.The radial growth of prove-nances from Aershan,Gaofeng,Jinshan,Kalunshan,Honghuaerji and Tuqiang had significantly negative correlation with monthly precipitation in last August.[Conclusion]It is concluded that the width growth of different Scots pine provenances grew faster at early stage,the width growth had positive correlation with temperature in February and＆amp;nbsp;precipitation in June,but negative correlation with precipitation in last August.In this study,the tree-ring chronolo-gies of 7 Scots pine provenances in Moershan were developed.
出处
《林业科学研究》
CSCD
北大核心
2016年第4期581-586,共6页
Forest Research
基金
黑龙江省自然科学基金项目(C201210)资助
关键词
人工林
樟子松
树轮
径向生长
种源
气候因子
plantation
Pinus sylvestris var.mongolica
tree-ring width chronology
radial growth
provenances,climatic factors
