摘要
从吉林省红石林业局森林资源调查小班中筛选出天然柞树纯林、慢阔和中阔等3种林分类型,利用各林分类型的森林资源调查小班数据,对4种符合“S”型生长曲线的林分生长模型进行了构建,并对各林分类型的生长规律进行了研究。结果表明:所拟合的各林分生长模型检验精度均大于98%,拟合结果较好。其中柞树纯林和中阔以模型(4)拟合最优,慢阔以模型(2)拟合最优。3种林分中最早达到最大连年生长量和平均生长量的为中阔,其次为慢阔,最晚为柞树纯林,其数量成熟龄,分别为50,56,64a。柞树纯林、慢阔和中阔的林分生长速生期分别为27—70a,24—64a,24—54a。
Three dominant forest types include native oak,slow-growing broad leaved forest and broadleaved forest at medium growing rate were chosen from forest resources investigation classes of Hongshi Forestry Bureau.Four forest growth models up to the"S"growth curve were constructed,and the three dominant forest growth regularities were studied based on the forest resources investigation classes.The results were as follows:The test accuracy of forest growth models was greater than 98%,it presented better fitting effect.The Model(4)for native oak and the booad leaved forest at medium growing rate was best,and the Model(2)for the slow-growing broad leaved forest was best.The first one reached the maximum continuous annual growth and the average growth was the booad leaved forest at medium growing rate,followed by the slow-growing broad leaved forest,and the last one was the native oak,slow-growing broad leaved forest and the forest with the mature age was 50a,56a and 64a respectively.The growth periods of native oak,the slow-growing broad leaved forest and the booad leaved forest at medium growing rate were 27a-70a,24a-64a and 24a-54a respectively.
作者
孟得干
于浩然
刘剑
郭佳忱
蔡超
李杨
张骁
MENG Degan;YU Haoran;LIU Jian;GUO Jiachen;CAI Chao;LI Yang;ZHANG Xiao(Forest Survey and Design Institute of Jilin Province,Changchun 130022,China)
出处
《林业资源管理》
北大核心
2019年第3期147-150,共4页
Forest Resources Management
关键词
林分
生长规律
生长模型
连年生长量
平均生长量
forest
growth regularities
growth model
continuous annual growth
average growth
作者简介
孟得干(1986-)男,河南洛阳人,工程师,主要从事林业资源调查规划设计工作。Email:191503594@qq.com.
