内蒙古毛乌素沙地樟子松径向生长对气候因子的响应  

Response of Radial Growth of Pinus sylvestris var.mongolica to Climate Factors in Mu Us Sandy Land in Inner Mongolia

作　　者：斯庆毕力格 李泽江 格希格图 乌日格根 何怀江 于健[3] Siqingbilige;LI Zejiang;Gexigetu;Wurigegen;HE Huaijiang;YU Jian(Ordos Forestry and Grassland Bureau,Ordos 017010,China;Jilin Provincial Academy of Forestry Sciences,Changchun 130033,China;Jiangsu Vocational College of Agriculture and Forestry,Zhenjiang 212400,China)

机构地区：[1]鄂尔多斯市林业和草原局,内蒙古鄂尔多斯017010 [2]吉林省林业科学研究院,吉林长春130033 [3]江苏农林职业技术学院,江苏镇江212400

出　　处：《吉林林业科技》2024年第5期7-13,48,共8页Journal of Jilin Forestry Science and Technology

基　　金：镇江市碳达峰碳中和科技创新专项资金项目(CN2022004);江苏农林职业技术学院“亚夫科技创新与服务”重大项目(2023kj07);江苏省高等学校自然科学研究面上项目(20KJB170019)。

摘　　要：本文运用树木年轮气候学传统方法,根据测定的内蒙古毛乌素沙地樟子松年轮宽度数据,系统分析了1959-2019年其径向生长与气候因子的相关性,揭示了其径向生长对气候变化的响应。结果表明:当年5月的水热状况是影响其径向生长的主要气候因子,其径向生长与平均气温及最高气温呈负相关、与降水量之间呈正相关。此外,当年3月平均气温和最低气温对其径向生长也有一定影响。樟子松是适合毛乌素沙地治沙造林的优良树种,在气候不断暖干化的背景下,其径向生长受干旱胁迫影响越发突出,如果未来全球气温持续升高,将对其径向生长和固碳能力产生不利影响。因此,在未来樟子松生产经营中应重视抗旱技术的研发与应用,优化造林布局与密度,以提高其适应性和生长质量。To explore the response of the radial growth of Pinus sylvestris var.mongolica in Mu Us sandy land in Inner Mongolia to climate change,traditional dendroclimatology method was adopted to systematically analyze the correlation between radial growth and climatic factors from 1959 to 2019 based on the annual ring width.The results showed that water and heat conditions in May of current year were the main climatic factors affecting radial growth.The radial growth was negatively correlated with average temperature and maximum temperature,and positively correlated with precipitation.The average temperature and minimum temperature in March of current year also had certain effect on radial growth.Pinus sylvestris var.mongolica was one of the excellent tree species suitable for desertification control and afforestation in Mu Us sandy land.Under the background of continuous warming and drying of the climate,the radial growth was seriously affected by drought stress.If the global temperature continued to rise in the future,the radial growth and carbon sequestration would be adversely affected.Therefore,in the production and management of Pinus sylvestris var.mongolica,attention should be paid to the research,development and application of drought-resistant technology,and the layout and density of afforestation should be optimized to improve the adaptability and growth quality in the future.

关 键 词：内蒙古 毛乌素沙地 樟子松 径向生长 气候响应 

分 类 号：S791.253[农业科学—林木遗传育种]