气候变化领域集成服务门户(CCPortal): Individual tree diameter growth modeling system for Dalat pine (Pinus dalatensis Ferré) of the upland mixed tropical forests

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DOI	10.1016/j.foreco.2020.118612
	Individual tree diameter growth modeling system for Dalat pine (Pinus dalatensis Ferré) of the upland mixed tropical forests
	Huy B.; Canh Nam L.; Poudel K.P.; Temesgen H.
发表日期	2021
ISSN	0378-1127
卷号	480
英文摘要	Pinus dalatensis Ferré (Dalat pine, or five-needle pine, locally) is an endemic large tree species of Vietnam that has both high timber and non-timber values. It is also a rare tree species listed in the Red List of the International Union for Conservation of Nature (IUCN). The objective of this study was to develop an individual tree diameter growth modeling system to facilitate the sustainable management and conservation of this species. We used Haglöf Sweden ® increment borers to collect tree ring samples from a total of 56 trees resulting in a dataset of 4566 diameter at breast height (dbh, cm) measurements at age (t, year) and obtained the associated ecological environmental factors in three different sites in the Central Highlands, Vietnam. A subset of this dataset (n = 1264) also had the climate data collected over the period of past 32–38 years (from 1980 to 2011 and from 1979 to 2016). Weighted mixed-effects models were used to model Dalat pine trees growth and account for autocorrelation and heteroscedasticity of the dbh measurements. Cross validation over 200 realizations were used to select the best equation form of dbh growth and incorporate the environmental effects and climatic factors that help improve reliability of the models. Under the mixed-effects modeling paradigm, the Mitscherlich equation fitted with random effects of ecological environmental factors (eco-subregions and altitude) and climatic factors (temperature, humidity, and temperature in dry and in rainy seasons) produced the best results. Whereas, under the fixed-effect modeling paradigm, the models that used the exponential function of environmental or climatic factors as the modifiers of an average diameter growth performed the best (Bias = −5.9% and RMSE = 10.0 cm). The models developed in this study will be useful for forecasting growth and for silvicultural planning under shifting environment and climate and are expected to contribute to the sustainable management of this endemic species. © 2020 Elsevier B.V.
英文关键词	Climatic factors; Dalat pine; Diameter growth; Environment factors; Mixed effects; Pinus dalatensis; Tree rings
语种	英语
scopus关键词	Climate models; Conservation; Ecology; Exponential functions; Random processes; Sustainable development; Timber; Tropics; Diameter-at-breast heights; Environmental factors; Fixed effect models; Heteroscedasticity; Mixed effects models; Rare tree species; Sustainable management; Tree-ring samples; Forestry; autocorrelation; climate effect; coniferous tree; data set; forest management; growth response; mixed forest; Red List; silviculture; tropical forest; Conservation; Ecology; Forestry; Growth; Pinus; Random Processes; Trees; Tropics; Da Lat; Tay Nguyen; Viet Nam; Pinus dalatensis
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154856
作者单位	Consultancy for Forest Resources and Environment Management (frem), No. 06 Nguyen Hong, Buon Ma Thuot, Dak Lak, Viet Nam; Visiting Scholar of Department of Forest Engineering, Resources and Management, Oregon State University (OSU), Corvallis, OR 97333, United States; Department of Silviculture, Forest Science Institute of Central Highlands and South of Central Viet Nam, 09 Hung Vuong, Dalat, Lam Dong, Viet Nam; Department of Forestry, Mississippi State University, PO Box 9681, Mississippi StateMS 39762, United States; Department of Forest Engineering, Resources and Management, Oregon State University (OSU), Corvallis, OR 97333, United States
推荐引用方式 GB/T 7714	Huy B.,Canh Nam L.,Poudel K.P.,et al. Individual tree diameter growth modeling system for Dalat pine (Pinus dalatensis Ferré) of the upland mixed tropical forests[J],2021,480.
APA	Huy B.,Canh Nam L.,Poudel K.P.,&Temesgen H..(2021).Individual tree diameter growth modeling system for Dalat pine (Pinus dalatensis Ferré) of the upland mixed tropical forests.Forest Ecology and Management,480.
MLA	Huy B.,et al."Individual tree diameter growth modeling system for Dalat pine (Pinus dalatensis Ferré) of the upland mixed tropical forests".Forest Ecology and Management 480(2021).