摘要
以吉林省汪清林业局臭松天然次生林为研究对象,利用172块小班调查数据、178块复位样地数据及96株解析木数据,根据臭松优势木树高生长现状,分别拟合得到最优导向曲线和多形地位指数模型。分别采用标准差法、指数级差法及落点检验法对2种地位指数模型进行精度检验,结果如下:标准差法显示两种地位指数模型精度都较高;指数级差法表明单形模型跳级的情况都高于多形,无跳级次数低于多形;落点检验法发现单形地位指数曲线簇中,散点溢出曲线簇范围的散点占总散点数的10.7%,而多形地位指数曲线簇中,散点溢出曲线簇范围的散点占总数的2.7%。因而,立地类型多形地位指数模型更适宜于编制吉林汪青臭松天然次生林地位指数表。
Adiessibirica Ledeb natural secondary forest of Wangqing forestry bureau, Jilin province is the research object using the data of 172 in-place inventory, 178 reset sample plot and 96 anatomical tree. Fit the height growth data of the dominant Adiessibirica Ledeb to get optimal guiding curve equation and polymorphic site index model. The accuracy tests of these two site index models are carried out respectively using the standard deviation method, index range method and impact testing method and it turns out that the standard deviation method shows the two kinds of site index models have relatively high precision, the index range method indicates that the advanced placement of simplex site index model is higher than polymorphic site index model, while the no advanced placement times lower, the impact testing method find that overflowing splashes accounted for 10.7% in the simplex site index curve clusters and 2.7% in the polymorphic site index model. On the whole, the site type polymorphic site index model is better than the simplex site index model fit to program site index table.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2017年第11期24-29,共6页
Journal of Central South University of Forestry & Technology
基金
国家林业公益性行业科研专项"天保工程区天然公益林抚育经营关键技术研究"(201204504)
关键词
臭松天然次生林
最优导向曲线
多形地位指数模型
汪清林业局
Abies nephrolepis natural secondary forest
optimal guide curve
polymorphic site index model
Wangqing forestry bureau
