CAJ | 학술논문

【目的】为分析TSAP和COFCHA两种软件交叉定年结果差异性，检验TSAP 交叉定年结果的可靠性。【方法】本文以长白山北坡阔叶红松林85个红松树芯样本为例，从交叉定年结果，年表特征及其与气候因子的响应关系等方面进行研究。【结果】COFECHA软件和TSAP软件得到的样本年龄基本一致，但两种方法保留的样本量及样本序列的相关系数存在显著差异。TSAP过程中保留75个红松样本，相关系数接近阈值水平（平均Glk值为69?7，平均CDI值为31?7）；COFECHA过程保留了56个样本，样本间相关系数较高，达到0?580，且22个通过TSAP 检验的样本被COFECHA剔除。COFECHA和TSAP软件保留的样本建立的年表特征及其与气候因子的关系也有所不同。COFECHA保留的样本对气候变化更为敏感，与当年7月降水显著正相关（P＜0?05）。由TSAP 软件交叉定年保留的样本建立的年表具有较高的信噪比，但与温度和降水的相关关系均未达到显著性水平。【结论】TSAP软件交叉定年能够达到确定样芯年龄的目的，但由于该软件检验生长趋势同步性的阈值较低，可能导致保留样本建立的年表虽然具有较高信噪比，却不能很好反映树木生长的限制因子。因此，基于保留的样本序列进行气候重建等相关研究时应选取COFECHA软件进行交叉定年，以保证样本间具有较高的一致性，提高重建序列的可靠性。two samples retained in TSAP were removed by COFECHA process?The characteristics of residu-al chronologies developed by retained samples partially differed in COFECHA and TSAP?The re-sidual chronology from COFECHA was more sensitive to climate and significantly positive with precipitation in July （P＜0?05）?There were no significant correlations between the residual chro-nology from TSAP and temperature or precipitation?【Conclusion】The age of core sample could be determined by TSAP?Because the value of control thresholds of testing cross-dating was low， the chronology developed by the saved samples from TSAP could have high SNR but little infor-mation in limited factor?Therefore，COFECHA should be used for cross-dating in order to ensure consistency of time series and improve reliability of reconstruction? 【目的】為分析TSAP和COFCHA兩種軟件交扠定年結果差異性，檢驗TSAP 交扠定年結果的可靠性。【方法】本文以長白山北坡闊葉紅鬆林85箇紅鬆樹芯樣本為例，從交扠定年結果，年錶特徵及其與氣候因子的響應關繫等方麵進行研究。【結果】COFECHA軟件和TSAP軟件得到的樣本年齡基本一緻，但兩種方法保留的樣本量及樣本序列的相關繫數存在顯著差異。TSAP過程中保留75箇紅鬆樣本，相關繫數接近閾值水平（平均Glk值為69?7，平均CDI值為31?7）；COFECHA過程保留瞭56箇樣本，樣本間相關繫數較高，達到0?580，且22箇通過TSAP 檢驗的樣本被COFECHA剔除。COFECHA和TSAP軟件保留的樣本建立的年錶特徵及其與氣候因子的關繫也有所不同。COFECHA保留的樣本對氣候變化更為敏感，與噹年7月降水顯著正相關（P＜0?05）。由TSAP 軟件交扠定年保留的樣本建立的年錶具有較高的信譟比，但與溫度和降水的相關關繫均未達到顯著性水平。【結論】TSAP軟件交扠定年能夠達到確定樣芯年齡的目的，但由于該軟件檢驗生長趨勢同步性的閾值較低，可能導緻保留樣本建立的年錶雖然具有較高信譟比，卻不能很好反映樹木生長的限製因子。因此，基于保留的樣本序列進行氣候重建等相關研究時應選取COFECHA軟件進行交扠定年，以保證樣本間具有較高的一緻性，提高重建序列的可靠性。two samples retained in TSAP were removed by COFECHA process?The characteristics of residu-al chronologies developed by retained samples partially differed in COFECHA and TSAP?The re-sidual chronology from COFECHA was more sensitive to climate and significantly positive with precipitation in July （P＜0?05）?There were no significant correlations between the residual chro-nology from TSAP and temperature or precipitation?【Conclusion】The age of core sample could be determined by TSAP?Because the value of control thresholds of testing cross-dating was low， the chronology developed by the saved samples from TSAP could have high SNR but little infor-mation in limited factor?Therefore，COFECHA should be used for cross-dating in order to ensure consistency of time series and improve reliability of reconstruction?
【목적】위분석TSAP화COFCHA량충연건교차정년결과차이성，검험TSAP 교차정년결과적가고성。【방법】본문이장백산북파활협홍송림85개홍송수심양본위례，종교차정년결과，년표특정급기여기후인자적향응관계등방면진행연구。【결과】COFECHA연건화TSAP연건득도적양본년령기본일치，단량충방법보류적양본량급양본서렬적상관계수존재현저차이。TSAP과정중보류75개홍송양본，상관계수접근역치수평（평균Glk치위69?7，평균CDI치위31?7）；COFECHA과정보류료56개양본，양본간상관계수교고，체도0?580，차22개통과TSAP 검험적양본피COFECHA척제。COFECHA화TSAP연건보류적양본건립적년표특정급기여기후인자적관계야유소불동。COFECHA보류적양본대기후변화경위민감，여당년7월강수현저정상관（P＜0?05）。유TSAP 연건교차정년보류적양본건립적년표구유교고적신조비，단여온도화강수적상관관계균미체도현저성수평。【결론】TSAP연건교차정년능구체도학정양심년령적목적，단유우해연건검험생장추세동보성적역치교저，가능도치보류양본건립적년표수연구유교고신조비，각불능흔호반영수목생장적한제인자。인차，기우보류적양본서렬진행기후중건등상관연구시응선취COFECHA연건진행교차정년，이보증양본간구유교고적일치성，제고중건서렬적가고성。two samples retained in TSAP were removed by COFECHA process?The characteristics of residu-al chronologies developed by retained samples partially differed in COFECHA and TSAP?The re-sidual chronology from COFECHA was more sensitive to climate and significantly positive with precipitation in July （P＜0?05）?There were no significant correlations between the residual chro-nology from TSAP and temperature or precipitation?【Conclusion】The age of core sample could be determined by TSAP?Because the value of control thresholds of testing cross-dating was low， the chronology developed by the saved samples from TSAP could have high SNR but little infor-mation in limited factor?Therefore，COFECHA should be used for cross-dating in order to ensure consistency of time series and improve reliability of reconstruction?
Obj ective The purpose of the study was to compare the cross-dating between TSAP and COFECHA software and to check the reliability of TSAP?[Method]Eigth-five tree core samples of Pinus koraiensis in the Changbai mountain were selected to compare the cross-dating results of two software based on cross-dating descriptions,characteristics of chronologies and their responses to climate?[Results]The age of tree core samples determined by COFECHA and TSAP was similar but there were significant differences in amount and correlation of retained sam-ples?Seventy-five of 85 samples were retained by TSAP software with a mean Glk value of 69? 7?The mean CDI value was 3 1? 7 ,which was close to the threshold?Fifty-six samples were retained by COFECHA with a mean correlation coefficient of 0? 580,meaning high correlation?Twenty-two samples retained in TSAP were removed by COFECHA process?The characteristics of residualchronologies developed by retained samples partially differed in COFECHA and TSAP?The residualchronology from COFECHA was more sensitive to climate and significantly positive withprecipitation in July (P <0?05)?There were no significant correlations between the residual chronologyfrom TSAP and temperature or precipitation?[Conclusion]The age of core sample couldbe determined by TSAP?Because the value of control thresholds of testing cross-dating was low,the chronology developed by the saved samples from TSAP could have high SNR but little informationin limited factor?Therefore,COFECHA should be used for cross-dating in order to ensureconsistency of time series and improve reliability of reconstruction.