DOI: 10.1016/j.foreco.2017.04.025
Scopus记录号: 2-s2.0-85018275480
论文题名: Tree diameter increments following silvicultural treatments in a dipterocarp forest in Kalimantan, Indonesia: A mixed-effects modelling approach
作者: Ruslandi ; Cropper W.P. ; Jr. ; Putz F.E.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 396 起始页码: 195
结束页码: 206
语种: 英语
英文关键词: Bayesian information criterion
; Enrichment planting
; Forest dynamics
; Managed tropical forest
; Reduced-impact logging
; SILFOR
Scopus关键词: Logging (forestry)
; Random processes
; Timber
; Tropics
; Bayesian information criterion
; Forest dynamics
; Reduced-impact logging
; SILFOR
; Tropical forest
; Forestry
英文摘要: An individual-tree-based growth-and-yield model (SILFOR) was developed to evaluate the long-term effects of silvicultural treatments beyond logging in a tropical forest is described. Here we focus on the model's approach to prediction of the magnitude and duration of silvicultural treatment effects on growth of the residual trees that will contribute most of the timber available to the next planned harvest in 25–40 years. Data from 30 1-ha permanent sample plots monitored for up to 20 years in dipterocarp forest in Kalimantan, Indonesia were used to develop the model. The treatments were different logging intensities with or without post-logging silvicultural treatments. Each species was assigned to one of five groups based on their ecological traits and the merchantability of their timber. A mixed-effects model was used to account for the spatially and temporally autocorrelated permanent plot data. The mixed-effects approach improved model performance substantially compared to a fixed-effects approach; specification of the variance function and correlation structure of the error term further improved model fit. Patterns and rates of tree diameter increment varied substantially, as indicated by the large differences among species groups in terms of the level of random-effects, number of parameters assigned as mixed-effects, and the covariates that define the best model. Similarly, silvicultural treatment effects also varied among species groups, as indicated by differences in the treatment dummy variables in the final model. Among-treatment differences diminished over time. We also found that species group representation is effected differentially by the silvicultural treatments. Overall, the study presents a novel and hopefully useful approach to the analysis of growth-and-yield data from tropical forests under intensified management for timber. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64332
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Department of Biology, University of Florida, Gainesville, FL, United States; School of Forest Resource and Conservation, University of Florida, Gainesville, FL, United States; The Nature Conservancy, 4245 N Fairfax Dr., Arlington, VA, United States
Recommended Citation:
Ruslandi,Cropper W.P.,Jr.,et al. Tree diameter increments following silvicultural treatments in a dipterocarp forest in Kalimantan, Indonesia: A mixed-effects modelling approach[J]. Forest Ecology and Management,2017-01-01,396