کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4379124 1617569 2006 30 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A model for the investigation of long-term carbon dynamics in boreal forests of western Canada: I. Model development and validation
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
A model for the investigation of long-term carbon dynamics in boreal forests of western Canada: I. Model development and validation
چکیده انگلیسی

To interpret field studies of forest floor dynamics in the continental boreal forest of western Canada and identify areas for future research, we developed a boreal forest carbon dynamics model based on the decay algorithms of the CENTURY model. Forest floor and mineral soil carbon pools were separately represented. We quantified detrital inputs for nine separate components of live vegetation using published data to relate litterfall to biomass and regression models to relate biomass of each component to stand age and other significant variables. The regression models were developed from observed C stocks of each component using data from 80 forest stands forming six chronosequences. The six chronosequences were for two of the principal species in this region, Pinus banksiana and Populus tremuloides, in each of three distinct climatic areas (approximately represented by the BOREAS SSA, BOREAS NSA and Wood Buffalo National Park). We carried out extensive sensitivity testing and validation tests against a wide range of data, including forest floor carbon stocks measured in the six chronosequences. The validation tests highlighted the need for better data in several areas, particularly root litter, woody detritus dynamics, coniferous foliage litter and nitrogen budgets. Nevertheless, the model performed well against the available data and was judged adequate for its purposes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Modelling - Volume 192, Issues 1–2, 15 February 2006, Pages 37–66
نویسندگان
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