CAJ | 학술논문

利用采自博尔塔拉蒙古自治州中东部山区9个采点的树轮样本,研制树轮宽度年表,分析9个树轮宽度标准化年表的统计特征及年表对气候的响应.结果表明:(1)位于森林中下部林缘的吉普克北、包尔克特沟西侧、小海子、胡苏木萨拉年表和森林上树线的吉普克年表包含的气候信息较多.(2)博州中东部山区气候对树木年轮生长的影响存在持续性,显著的持续年数大多表现在当年及其后的3 a.(3)9个年表间的互相关系数均超过了0.01的显著水平,森林中下部林缘年表间的相关性大于森林上树线.(4)森林上树线树轮宽度年表与上年12月至当年9月平均最低气温相关系数最大(R=0.583,显著性水平达0.0001),其中与6月温度的相关最好,温度是影响森林上树线树轮宽度生长的主要气候限制因子.森林中下部林缘区域树轮宽度年表与上年6月至当年5月的降水量呈显著正相关(R=0.644,显著性水平达0.0001),其中与6月降水量的相关最好,降水是影响森林中下部林缘树木年轮宽度生长的主要气候限制因子.
이용채자박이탑랍몽고자치주중동부산구9개채점적수륜양본,연제수륜관도년표,분석9개수륜관도표준화년표적통계특정급년표대기후적향응.결과표명:(1)위우삼림중하부림연적길보극북、포이극특구서측、소해자、호소목살랍년표화삼림상수선적길보극년표포함적기후신식교다.(2)박주중동부산구기후대수목년륜생장적영향존재지속성,현저적지속년수대다표현재당년급기후적3 a.(3)9개년표간적호상관계수균초과료0.01적현저수평,삼림중하부림연년표간적상관성대우삼림상수선.(4)삼림상수선수륜관도년표여상년12월지당년9월평균최저기온상관계수최대(R=0.583,현저성수평체0.0001),기중여6월온도적상관최호,온도시영향삼림상수선수륜관도생장적주요기후한제인자.삼림중하부림연구역수륜관도년표여상년6월지당년5월적강수량정현저정상관(R=0.644,현저성수평체0.0001),기중여6월강수량적상관최호,강수시영향삼림중하부림연수목년륜관도생장적주요기후한제인자.
This paper analyzed characteristics of the tree-ring standardized chronologies from the nine sampling points in the middle and east of Boertala Mongolia Autonomous Prefecture and their response to climate change. The results indicated that:(1)JPB,BEK,XHZ,HSM chronologies which located near the lower limit of the forest and JPK chronology which located near the upper limit of the forest contained more climatic information.(2)The climate in the middle and east of Boertala Mongolia Autonomous Prefecture appeared obviously consistent influence to the radial growth of tree rings,most lasting in the current year or the next 3 years.(3)The correlation coefficients which located to lower treeline of forest were superior to upper treeline.(4)There was positive correlation between the tree-ring standardized chronologies and the mean lowest temperature from December last year to current September(the highest coefficient 0.583,the significance level 0.0001)in upper treeline region, while there is positive correlation between the tree-ring width and the precipitation from June last year to current May(expecially in June, the highest coefficient 0.644,the significance level 0.0001)lower treeline of forest region.The results suggest that the major climate factor is tempreture in upper treeline region but it is precipitation in lower treeline of forest region.