Temporal changes of forest net primary production and net ecosystem production in west central Canada associated with natural and anthropogenic disturbances
| العنوان: | Temporal changes of forest net primary production and net ecosystem production in west central Canada associated with natural and anthropogenic disturbances |
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| المؤلفون: | Werner A. Kurz, Zhong Li, Michael J. Apps, Ed Banfield |
| المصدر: | Canadian Journal of Forest Research. 33:2340-2351 |
| بيانات النشر: | Canadian Science Publishing, 2003. |
| سنة النشر: | 2003 |
| مصطلحات موضوعية: | Global and Planetary Change, Ecology, Taiga, Primary production, Biogeochemistry, Forestry, Natural (archaeology), Ecosystem model, Production (economics), Environmental science, Terrestrial ecosystem, Ecosystem |
| الوصف: | Temporal variations of net primary production (NPP) and net ecosystem production (NEP) in west central Canadian forests over the period of 19201995 and their responses to natural and anthropogenic disturbances were simulated using the Carbon Budget Model of the Canadian Forest Sector (CBM-CFS2). The results show that forest NPP in the region was 215 g C·year1·m2 in 1920, varied between 105 and 317 g·C year1·m2 depending on ecoclimatic province, but gradually increased to 330 (158 to 395) g C·year1·m2 in the early 1980s before declining to 290 (148 to 395) g C·year1·m2 by 1995. Forest NEP was estimated to be 53 (13 to 88) g C·year1·m2 in 19201924, increased to 75 (5 to 98) g C·year1·m2 in 1960, and then declined to 26 (14 to 53) g C·year1·m2 in 19911995. Natural disturbances played a greater role than harvest in determining the temporal pattern of forest NPP and NEP during the period because of the larger area affected by natural disturbances. This study also indicated that ignoring disturbances would lead to an overestimation of forest NPP and NEP in ecosystem modeling. |
| تدمد: | 1208-6037 0045-5067 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::f3a3db6765c65c5fe8c8467698717c2d https://doi.org/10.1139/x03-168 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........f3a3db6765c65c5fe8c8467698717c2d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 12086037 00455067 |
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