DOI: 10.1016/j.foreco.2014.02.028
Scopus记录号: 2-s2.0-84896268534
论文题名: A thinning routine for large-scale biogeochemical mechanistic ecosystem models
作者: Thurnher C. ; Eastaugh C.S. ; Hasenauer H.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 320 起始页码: 56
结束页码: 69
语种: 英语
英文关键词: Biogeochemical modelling
; Carbon cycling
; Ecosystem modelling
; Empirical probability density maps
; Logistic regression
; Thinning
Scopus关键词: Biogeochemistry
; Carbon
; Ecosystems
; Probability density function
; Biogeochemical modelling
; Carbon cycling
; Ecosystem modelling
; Empirical probabilities
; Logistic regressions
; Thinning
; Forestry
; biogeochemical cycle
; carbon cycle
; ecosystem modeling
; empirical analysis
; forest ecosystem
; forest inventory
; forest management
; logistics
; management practice
; probability
; thinning
; Biochemistry
; Ecosystems
; Geochemistry
; Probability
; Regression Analysis
; Thinning
; Australia
英文摘要: Biogeochemical mechanistic models (BGC models) are used to model the carbon balance of forest ecosystems. Since European forests are managed intensively, a crucial part of carbon modelling is integrating management and thinning routines in the modelling process. In this study, forest inventory data are used to derive information concerning forest management practice. Based on this, a harvesting model is calibrated for simulating the 'business as usual' management that can be used in large-scale BGC models. Our approach is based on data from the Austrian National Forest Inventory. The model comprises two sub-models: (1) a logistic model to assess the probability of an inventory point to be thinned and (2) a non-parametric model based on empirical probability density maps to assess the thinning intensity. Since BGC models operate on the stand level, only stand level parameters are integrated in the model such as standing timber carbon, site quality, cover type, elevation and age. A comparison of the predicted and observed proportion of thinned points and the thinning intensity suggests that the model is able to correctly mimic the management regime derived from the inventory data. No systematic trends in the results are evident. Using this thinning model in combination with a mechanistic model will enable assessment of the overall carbon stored in managed forest ecosystems, especially in large-scale modelling applications. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66003
Appears in Collections: 影响、适应和脆弱性
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作者单位: Institute of Silviculture, Department of Forest and Soil Sciences, University of Natural Resources and Life Sciences Vienna, Peter Jordan Straße 82, A-1190 Vienna, Austria; School of Environment, Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia
Recommended Citation:
Thurnher C.,Eastaugh C.S.,Hasenauer H.. A thinning routine for large-scale biogeochemical mechanistic ecosystem models[J]. Forest Ecology and Management,2014-01-01,320