Comparison of stem taper models for the four tropical tree species in Mount Makiling, Philippines

查看全文 作　　者：Roscinto Ian [1]C.LUMBRES;Azyleah [2]C.ABINO;Nelson [3]M.PAMPOLINA;Feliciano G.CALORA [4]Jr;Young Jin [2]LEE

机构地区：[1]College of Forestry, Benguet State University;[2]Resource Management and Development Department, Laguna Lake Development Authority;[3]Department of Forest Biological Sciences, College of Forestry and Natural Resources,University of the Philippines Los Ba?os;[4]PCAARRD, Department of Science and Technology, Los Ba?os

出　　处：《Journal of Mountain Science》索引2016年第13卷第3期,共10页

基　　金：support from Kongju National University Research Grant (2014) 摘　　要：This study was conducted to evaluate the performance of six stem taper models on four tropical tree species, namely Celtis luzonica(Magabuyo),Diplodiscus paniculatus(Balobo), Parashorea malaanonan(Bagtikan), and Swietenia macrophylla(Mahogany) in Mount Makiling Forest Reserve(MMFR), Philippines using fit statistics and lack-of-fit statistics. Four statistical criteria were used in this study, including the standard error of estimate(SEE),coefficient of determination(R^2), mean bias( E),and absolute mean difference(AMD). For the lack-offit statistics, SEE, E and AMD were determined in different relative height classes. The results indicated that the Kozak02 stem taper model offered the best fit for the four tropical species in most statistics. The Kozak02 model also consistently provided the best performance in the lack-of-fit statistics with the best SEE, E and AMD in most of the relative height classes. These stem taper equations could help forest managers and researchers better estimate the diameter of the outside bark with any given height,merchantable stem volumes and total stem volumes of standing trees belonging to the four species of thetropical forest in MMFR. 关键词：热带树种锥模型菲律宾统计标准森林保护区大叶桃花心木平均绝对差 AMD

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Comparison of stem taper models for the four tropical tree species in Mount Makiling, Philippines

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