伏牛山南坡3种针叶树径向生长对气候变化的响应  

Radial growth responses of three coniferous species to climate change on the southern slope of Funiu Mountains,China

作　　者：李镇江 于晨一 刘升云 闫瑞环 黄心邓 刘晓静 陈志成 王婷[1] LI Zhenjiang;YU Chenyi;LIU Shengyun;YAN Ruihuan;HUANG Xindeng;LIU Xiao-jing;CHEN Zhicheng;WANG Ting(College of Forestry,Henan Agricultural University,Zhengzhou 450002,China;Baotianman National Nature Reserve,Nanyang 474420,Henan,China;Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration,Ecology and Nature Conservation Institute,Chinese Academy of Forestry,Beijing 100091,China)

机构地区：[1]河南农业大学林学院,郑州450002 [2]宝天曼国家级自然保护区,河南南阳474420 [3]中国林业科学研究院森林生态环境与保护研究所,国家林业和草原局森林生态环境重点实验室,北京100091

出　　处：《应用生态学报》2023年第5期1178-1186,共9页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金项目(31270493);河南农业大学大学生创新训练计划项目(2022DC0193)资助。

摘　　要：伏牛山地处暖温带北亚热带过渡区,多种植物交汇分布且对气候变化较为敏感,但对于不同针叶树生长对气候变化响应的异同还不完全清楚。本研究以伏牛山南坡油松、华山松和马尾松为对象,分别建立3种针叶树的胸高断面积增量(BAI)指数年表,分析其生长趋势和对气候变化的响应规律。结果表明:油松、华山松和马尾松的径向生长有相似的变化趋势;不同BAI指数年表间较大的Gleichlufigkeit指数也表明,3种针叶树的生长变化有较强的相似性。Pearson相关分析表明,3种针叶树的径向生长对气候的响应存在一定的相似性,均与上一年12月和当年6月降水量呈显著正相关,与当年6月气温和9月降水量呈显著负相关。3种针叶树的生长对气候变化的响应还存在一定的差异性,其中,马尾松的生长与当年3月气温呈显著负相关,与当年3月降水量呈显著正相关,而华山松和马尾松的生长与当年8月平均最高温呈显著负相关。滑动相关分析表明,3种针叶树的生长与气候因子响应关系的稳定性也具有一定的相似性,3种针叶树的生长与上一年12月降水量的正相关关系均逐渐增强,而与当年9月降水量的负相关关系均逐渐增强。马尾松对气候因子的敏感性和稳定性相对较强,全球变暖背景下伏牛山南坡可能更适合其生长。Funiu Mountains are located in a transition region between warm temperate zone and northern subtropical region,where a variety of plant species are distributed with sensitive response to climate change.Their response characteristics to climate change are still unclear.We developed the basal area increment(BAI)index chronologies of Pinus tabuliformis,P.armandii,and P.massoniana in the Funiu Mountains to examine their growth trend and their sensitivity to climatic change.The results showed that the BAI chronologies gave a clue that the three conife⁃rous species had similar radial growth rate.The large Gleichlufigkeit(GLK)indices among the three BAI chronolo⁃gies also indicated that the three species had a similar growth trend.Results of correlation analysis showed that the three species also had similar response to climatic change to a certain extent.Radial growth of all the three species was significantly positively correlated with the total monthly precipitation in December of previous year and June of the current year,but negatively correlated with the precipitation in September and the mean monthly temperature in June of the current year.There were some differences in the responses of the three coniferous to climate change.P.massoniana had a significant negative correlation with the mean temperature in March,and a significant positive correlation with the precipitation in March,while P.armandii and P.massoniana were affected negatively by the maximum temperature in August.Results of the moving correlation analysis showed that the three coniferous species had some similar sensitivity to climate change.Their positive responses to precipitation in previous December con⁃sistently increased,as well as the negative correlation with precipitation in current September.As to P.masso⁃niana,they had a relatively stronger climatic sensitivity and higher stability than the other two species.It would be more suitable for P.massoniana trees on the southern slope of the Funiu Mountains under global warming.

关 键 词：伏牛山 针叶树种 断面积增量指数 气候响应 

分 类 号：S718.512[农业科学—林学]