地形因子对天然落叶阔叶林不同年龄紫椴(Tilia amurensis)胸径生长的影响  

Influence of Terrain Factors on DBH Growth of Tilia amurensis with Different Ages in Natural Deciduous Broad-leaved Forest

作　　者：郑金萍[1] 范春楠[1] 于舒洋 王丽丽[3] ZHENG Jinping;FAN Chunnan;YU Shuyang;WANG Lili(Forestry College of Beihua University,Jilin 132013,China;Liaoning Bohao Land Technology Development Co.Ltd.,Shenyang 110033,China;Jilin City Academy of Forestry Sciences,Jilin 132013,China)

机构地区：[1]北华大学林学院,吉林吉林132013 [2]辽宁博昊土地科技发展有限公司,辽宁沈阳110033 [3]吉林市林业科学研究院,吉林吉林132013

出　　处：《北华大学学报（自然科学版）》2022年第6期733-738,共6页Journal of Beihua University（Natural Science）

基　　金：吉林省科技厅中青年科技创新创业卓越人才(团队)项目(创新类)(20210509016RQ);吉林省科技厅技术攻关项目(20190301084NY);2021年吉林省留学人员科技创新创业项目;吉林省科技厅重点研发项目(20200402115NC).

摘　　要：以集安市林业局热闹林场天然落叶阔叶林为对象,运用树木年轮学方法,分析27块样地121根紫椴树芯样本数据,了解地形条件对不同年龄紫椴胸径生长的影响.结果显示:在调查范围内,以800~900 m海拔紫椴胸径生长过程占优势,各海拔区内的紫椴胸径连年生长量均随年龄的增加表现为先快速降低后缓慢下降的趋势;缓坡紫椴胸径生长量最大,斜坡紫椴胸径连年生长最稳定;不同坡度间紫椴胸径生长在10 a后开始出现差异;前45 a紫椴胸径生长量以阳坡最佳,其次为半阴坡、半阳坡、阴坡,不同坡向间的影响差异出现在10~40 a和50~70 a;坡中、坡下紫椴生长优于坡上,不同坡位间的紫椴胸径连年生长量差异表现在20 a后.In order to analyze the influence of the DBH growth of Tilia amurensis with different ages by terrain conditions,a total of 121 tree ring samples from 27 plots were collected and analyzed in the current study in natural deciduous broad-leaved forest in Renao Forest Farm of Ji’an.In the survey range,the growth process of Tilia amurensis in the elevation range of 800~900 m was dominant,and the continuous annual growth of Tilia amurensis in each elevation range showed a rapid decline at first and then a slow decline with ages increasing.The DBH growth of Tilia amurensis on gentle slope was the highest,and the DBH continuous annual growth of Tilia amurensis on slope was the most stable in successive years.The DBH growth of Tilia amurensis began to show differences between different slopes after 10 a.The DBH growth of Tilia amurensis in the first 45 a was the best on sunny slope,followed by semi-shady slope,semi-sunny slope and shady slope.The difference of influence between different slope aspects showed from 10 a to 40 a and from 50 a to 70 a.The growth of Tilia amurensis in the middle and under slope was better than up slope,and the DBH continuous annual growth difference of Tilia amurensis between different slope positions was shown after 20 a.

关 键 词：紫椴 胸径生长 地形条件 影响因素 

分 类 号：S718.53[农业科学—林学] S792.36