Estimating net primary production of forests in the Canadian Prairie Provinces using an inventory-based carbon budget model
| العنوان: | Estimating net primary production of forests in the Canadian Prairie Provinces using an inventory-based carbon budget model |
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| المؤلفون: | Michael J. Apps, Ed Banfield, Zhong Li, Werner A. Kurz |
| المصدر: | Canadian Journal of Forest Research. 32:161-169 |
| بيانات النشر: | Canadian Science Publishing, 2002. |
| سنة النشر: | 2002 |
| مصطلحات موضوعية: | Global and Planetary Change, Biomass (ecology), Forest inventory, Ecology, Taiga, Budget model, Primary production, Forestry, Productivity (ecology), Forest ecology, Environmental science, Ecosystem |
| الوصف: | The Carbon Budget Model of the Canadian Forest Sector (CBM-CFS2) is a forest inventory-based ecosystem simulation model. It has been used previously for both retrospective and projective analyses of the carbon pools and fluxes of the Canadian forest ecosystems at the national, regional, and stand level. The objective of this study was to determine and evaluate forest net primary production (NPP) in the three Prairie Provinces in west-central Canada, as estimated by the model. The model simulated an averaged aboveground NPP (NPPA )o f 172 gC ·m -2 ·year -1 for the re- gional forests, varying from 72 to 293 g C·m -2 ·year -1 , depending on ecoclimatic province, forest type, age, and site productivity. Comparisons of NPPA estimates for the boreal forest (165-179 g C·m -2 ·year -1 ) with results from direct measurements, modeling, and empirical calculations show that the CBM-CFS2 produced reasonable estimates of NPPA. The model incorporates different types of disturbances such as wildfire, harvesting, and insects and is able to evaluate NPP changes with stand age. However, belowground NPP may be overestimated, especially for young and unproductive stands. This can be explained by the current parameter estimates for the fine-root component of belowground biomass and for fine-root turnover rates. Resume : Le modele de bilan du carbone du Service canadien des forets (CBM-CFS2) est un modele de simulation des ecosystemes base sur l'inventaire. Il a ete utilise precedemment pour des analyses a la fois retrospectives et pros- pectives des reservoirs et des flux de carbone des ecosystemes forestiers du Canada a l'echelle nationale, regionale et locale. L'objectif de cette etude etait de determiner et d'evaluer la production primaire nette (PPN) des forets dans les trois provinces des prairies du centre-ouest du Canada, telle qu'estimee par le modele. Le modele simule une PPN ae |
| تدمد: | 1208-6037 0045-5067 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::54fc7935e1547114d8dffd792970c943 https://doi.org/10.1139/x01-182 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........54fc7935e1547114d8dffd792970c943 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 12086037 00455067 |
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