摘要
对采自辽宁彰武、阜新、建平和山西方山、吉县的672个油松树芯进行精确的交叉定年和量测后,采用COFECHA程序检验定年质量,并对定年质量的影响因素进行对应分析,结果表明:各试验地点样地内树芯间的相关度为0.3807～0.7175,具有明显的地域性。山西试验地样芯的相关度明显高于辽宁,而样芯的平均敏感度则差异不明显;与主序列不一致的样本标记A与由于伪轮或缺轮导致的标记B这两种现象的发生,辽宁也多于山西;两种标记的出现与坡度、坡位、林分密度和抚育间伐等影响因素存在较为密切的关系。
After rigorous cross-dating and measuring of 672 of Pinus tabulaeformis eore series gathered from Zhangwu, Fuxin,Jianping of Liaoning Province and Fangshan, Jixian of Shanxi Province, the quality of the cross-dating was checked using the COFECHA program and the influencing factors were analysed using MCA. The results showed that：（l） the series inner corrclalion ranged from 0.3807 to 0.7175, and they had apparent regional characteristics, while the series inner correlation of＇ Shanxi was obviously higher than that of Liaoning, but the difference in average mean sensitivity of series was insignificant; （2） Flag A and Flag B which indicated some potential problems occured more frequently in Liaoning than in Shanxi; （3） the appearances of the two form flags were more closely correlated with such factors as slope, position, stand density and thinning.
出处
《沈阳农业大学学报》
CAS
CSCD
北大核心
2011年第3期316-320,共5页
Journal of Shenyang Agricultural University
基金
林业公益性行业科研专项经费项目(200704031)
关键词
油松人工林
年轮
序列相关度
平均敏感度
影响因素
Pinus tabulaeformis plantation
tree-ring
series intercorrelation
sensitivity
influencing factors
