Carbon and water cycling in Lake-Rich landscapes in Canada
会议名称：《第三世界生态高峰会》
会议日期：2007年
学科分类：0710[理学-生物学] 07[理学] 071004[理学-水生生物学]
关 键 词：ICC Carbon and water cycling in Lake-Rich landscapes in Canada
摘 要：Aquatic ecosystems play a key role in the fate of terrigenous organic matter(TOM).The understanding of the role of aquatic ecosystems in processing TOM is hampered by several uncertainties regarding the relations between terrestrial and aquatic ***,it is presently difficult to adequately evaluate the impacts of anthropogenic disturbances on the greenhouse gas(GHG)budgets of *** this study,we aim at developing a better understanding of the respective impacts of reservoirs and forest harvesting on the aquatic fate of TOM,in order to estimate the resulting changes in GHG emissions budget at the watershed *** will present the development of a new process-based model(Integrated Carbon Cycle Model-ICC model)capable of integrating(1)fine biogeochemical proxies with respect to the carbon dynamics in lakes and perturbed aquatic ecosystems such as human-made reservoirs as well as(2) modifications in TOM exports due to forest *** ICC model will be developed throngh two iterative and complementary components:a modeling approach and an empirical biogeochemical *** challenges for coupling terrestrial ecosystem models with aquatic ecosystem models will also be discussed.