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  Bayesian calibration, comparison and averaging of six forest models, using data from Scots pine stands across Europe

van Oijen, M., Reyer, C., Bohn, F., Cameron, D., Deckmyn, G., Flechsig, M., Härkönen, S., Hartig, F., Huth, A., Kiviste, A., Lasch, P., Mäkelä, A., Mette, T., & Rammer, F. M. W. (2013). Bayesian calibration, comparison and averaging of six forest models, using data from Scots pine stands across Europe. Forest Ecology and Management, 289, 255-268. doi:10.1016/j.foreco.2012.09.043.

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アイテムのパーマリンク: https://hdl.handle.net/11858/00-001M-0000-0014-77AA-3 版のパーマリンク: https://hdl.handle.net/11858/00-001M-0000-0014-79B6-6
資料種別: 学術論文

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BPR048.pdf (出版社版), 1017KB
 
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BPR048.pdf
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制限付き (Max Planck Institute for Biogeochemistry, MJBK; )
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application/pdf
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 作成者:
van Oijen, M.1, 著者
Reyer, C., 著者
Bohn, F.J., 著者
Cameron, D.R., 著者
Deckmyn, G., 著者
Flechsig, M., 著者
Härkönen, S., 著者
Hartig, F., 著者
Huth, A., 著者
Kiviste, A., 著者
Lasch, P., 著者
Mäkelä, A., 著者
Mette, T., 著者
Rammer, F. Minunno W., 著者
所属:
1External Organizations, ou_persistent22              

内容説明

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 要旨: Forest management requires prediction of forest growth, but there is no general agreement about which models best predict growth, how to quantify model parameters, and how to assess the uncertainty of model predictions. In this paper, we show how Bayesian calibration (BC), Bayesian model comparison (BMC) and Bayesian model averaging (BMA) can help address these issues. We used six models, ranging from simple parameter-sparse models to complex process-based models: 3PG, 4C, ANAFORE, BASFOR, BRIDGING and FORMIND. For each model, the initial degree of uncertainty about parameter values was expressed in a prior probability distribution. Inventory data for Scots pine on tree height and diameter, with estimates of measurement uncertainty, were assembled for twelve sites, from four countries: Austria, Belgium, Estonia and Finland. From each country, we used data from two sites of the National Forest Inventories (NFIs), and one Permanent Sample Plot (PSP). The models were calibrated using the NFI-data and tested against the PSP-data. Calibration was done both per country and for all countries simultaneously, thus yielding country-specific and generic parameter distributions. We assessed model performance by sampling from prior and posterior distributions and comparing the growth predictions of these samples to the observations at the PSPs. We found that BC reduced uncertainties strongly in all but the most complex model. Surprisingly, country-specific BC did not lead to clearly better within-country predictions than generic BC. BMC identified the BRIDGING model, which is of intermediate complexity, as the most plausible model before calibration, with 4C taking its place after calibration. In this BMC, model plausibility was quantified as the relative probability of a model being correct given the information in the PSP-data. We discuss how the method of model initialisation affects model performance. Finally, we show how BMA affords a robust way of predicting forest growth that accounts for both parametric and model structural uncertainty.

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 日付: 2013
 出版の状態: 出版
 ページ: -
 出版情報: -
 目次: -
 査読: -
 識別子（DOI, ISBNなど）: その他: BPR048
DOI: 10.1016/j.foreco.2012.09.043
 学位: -

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出版物 1

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出版物名: Forest Ecology and Management
種別: 学術雑誌
 著者・編者:
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出版社, 出版地: Amsterdam : Elsevier
ページ: - 巻号: 289 通巻号: - 開始・終了ページ: 255 - 268 識別子（ISBN, ISSN, DOIなど）: ISSN: 0378-1127
CoNE: https://pure.mpg.de/cone/journals/resource/954925526822