油松人工林年轮定年研究  

Analysis on the Cross-Dating Results of the Tree-ring of Planted Pinus tabulaeformis

作　　者：于显威[1,2] 王百田[1] 

机构地区：[1]北京林业大学水土保持学院,北京100083 [2]沈阳农业大学高等职业技术学院,沈阳110122

出　　处：《沈阳农业大学学报》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)

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.

关 键 词：油松人工林 年轮 序列相关度 平均敏感度 影响因素 

分 类 号：S791.254[农业科学—林木遗传育种]