东北地区帽儿山种源实验林区不同种源水曲柳径向生长对气候的响应  

Responses of radial growth of Fraxinus mandshurica from different provenances to climate at Maoershan in Northeast China

作　　者：杜英军 李士杰 王丽[1,2] 杨帅 贾欣萤[1,3] 田广宇 曾凡锁 辛颖 DU Yingjun;LI Shijie;WANG Li;YANG Shuai;JIA Xinying;TIAN Guangyu;ZENG Fansuo;XIN Ying(State Key Laboratory of Tree Genetics and Breeding,Northeast Forestry Univer-sity,Harbin 150040,China;College of Forestry,Northeast Forestry University,Harbin 150040,China;College of Life Science,Northeast Forestry University,Harbin 150040,China)

机构地区：[1]东北林业大学,林木遗传育种全国重点实验室,哈尔滨150040 [2]东北林业大学林学院,哈尔滨150040 [3]东北林业大学生命科学学院,哈尔滨150040

出　　处：《应用生态学报》2024年第5期1159-1168,共10页Chinese Journal of Applied Ecology

基　　金：国家重点研发计划项目(2021YFD220030301);中央高校基本科研业务费(2572021DT06);林木遗传育种国家重点实验室创新项目(2022A03)资助。

摘　　要：为揭示不同种源水曲柳径向生长对气候因子的响应,采用树木年轮学方法,构建了帽儿山种源试验林内来自20个种源地的水曲柳标准年表,分析不同种源水曲柳径向生长的差异以及与气候因子之间的相关性。结果表明:20个种源水曲柳年表整体变化趋势基本相似,而生长幅度存在差异,其中带岭、露水河和三岔子3个种源水曲柳径向生长均值最大。20个种源水曲柳径向生长均与当年7月最高温呈显著正相关。除辉南外,水曲柳径向生长均与当年7月平均温度呈显著正相关。方正、临江和露水河等14个种源水曲柳径向生长与当年8月降水量呈显著正相关。水曲柳径向生长均受到生长季温度与降水的制约。干旱胁迫下不同种源水曲柳径向生长存在差异,汪清、带岭和海林种源有更强的抵抗干旱的能力,而弯甸子、沾河和兴隆种源水曲柳在干旱后具有较好的恢复能力。To understand the responses of radial growth of Fraxinus mandshurica from different provenances to climatic factors,we used the dendrochronological method to establish the standard chronologies of F.mandshurica from 20 provenances in Maoershan provenance test forest,and analyzed the differences in radial growth and their correlation with climate factors.The results showed that the overall trend of F.mandshurica chronologies from 20 provenances was generally similar.There were differences in growth amplitude,with the average radial growth of F.mandshurica from Dailing,Lushuihe and Sanchazi being the highest.The radial growth of F.mandshurica from 20 provenances was significantly positively correlated with the highest temperature in July and the average temperature in July except for Huinan.The radial growth of F.mandshurica from 14 provenances was significantly positively correlated with the precipitation in August.The radial growth of F.mandshurica was constrained by temperature and precipitation during the growing season.There was difference in radial growth among F.mandshurica from different provenances under drought stress.F.mandshurica from Wangqing,Dailing,and Hailin had stronger resistance to drought,while that from Wandianzi,Zhanhe,and Xinglong had better recovery ability after drought.

关 键 词：水曲柳 径向生长 种源 干旱 

分 类 号：S792.41[农业科学—林木遗传育种]