红花尔基樟子松人工林径向生长与气象因子的关系  

Relationship between Radial Growth of Pinus sylvestris var.mongolica Plantation and Meteorological Factors in Honghuaerji

作　　者：曹恭祥[1,2] 郭晔 郝笑明 季蒙 张凤鹤[1] 崔玉刚 耿庆春[5] 包瑞 冯丽红 CAO Gong-xiang;GUO Ye;HAO Xiao-ming;JI Meng;ZHANG Feng-he;CUI Yu-gang;GENG Qing-chun;BAO Rui;FENG Li-hong(Inner Mongolia Academy of Forestry,Hohhot 010010,China;Ordos Forest Ecosystem Research Station,Inner Mongolia,Ordos 016100,China;Economic Development Research Center of National Forestry and Grassland Administration,Beijing 100013,China;Kangbashi District Gardening Service Center,Ordos,Inner Mongolia,Ordos 017010,China;Honghuaerji Forestry Bureau,Hulun Buir,Inner Mongolia,Hulun Buir 021112,China)

机构地区：[1]内蒙古自治区林业科学研究院,内蒙古呼和浩特010010 [2]内蒙古鄂尔多斯森林生态系统国家定位观测研究站,内蒙古鄂尔多斯016100 [3]国家林业和草原局经济发展研究中心,北京100013 [4]鄂尔多斯市康巴什区园林绿化事业服务中心,内蒙古鄂尔多斯017010 [5]呼伦贝尔市红花尔基林业局,内蒙古呼伦贝尔021112

出　　处：《内蒙古林业科技》2021年第3期7-11,34,共6页Journal of Inner Mongolia Forestry Science and Technology

基　　金：内蒙古GEF项目“呼伦贝尔沙地樟子松种群恢复与经营管理技术研究”(GEF-NMG-201601);内蒙古自治区林业科学研究院自选项目“干旱区几种植物生态特性及繁殖技术研究”。

摘　　要：通过对红花尔基自然保护区樟子松径向生长的分析,揭示樟子松径向生长与气温、降水、湿度等气象因子的关系。结果显示:不同年份樟子松径向生长量差异较大,总体上呈下降趋势,多年平均径向生长量为2.14 mm,最高为4.62 mm,最低为1.20 mm。气象因素显著影响樟子松径向生长量,且这种影响具有时间滞后性;樟子松径向生长量与前一年9月、12月和当年3月、8月、12月的降水量保持显著的相关关系;前一年和当年8—9月的大气相对湿度与径向生长量保持极显著正相关关系;径向生长量与生长季温度均呈不同程度的负相关,尤其是前一年和当年的6—8月温度显著影响着径向生长量。研究表明,樟子松径向生长量主要受生长季末期、冬季的降水及生长季中期温度的影响,未来该地区升温的趋势不利于樟子松径向生长。Based on analyzing the radial growth of Pinus sylvestris var.mongolica in Honghuaerji Natural Reserves,the relationship between the radial growth and meteorological factors,such as temperature,precipitation and humidity,has been revealed.The results showed that there was great difference on the radial growth of Pinus sylvestris var.mongolica in different year,with a falling tendency in general.The annual average radial growth was 2.14 mm,with the highest radial growth at 4.62 mm and the lowest one at 1.20 mm.The radial growth of Pinus sylvestris var.mongolica was significantly affected by climatic factors,with presenting a time lag.The radial growth of Pinus sylvestris var.mongolica was significantly correlated with the monthly precipitation in September and December of previous year and that in March,August and December of current year.The radial growth was correlative positively with the relative air humidity from August to September in previous and current year.The radial growth was more or less negatively correlated with the monthly temperature in growing season.In particular,the temperature from June to August in previous and current year significantly affected the radial growth.The radial growth was affected by precipitation in the end of growing season and winter as well as the temperature in mid growing season.It is implied that the radial growth can decrease in the future due to the possible increase of temperature in this district.

关 键 词：樟子松 树干径向变化 温度 降水 

分 类 号：S791.253[农业科学—林木遗传育种]