Modelling the Responses of Carbon Fluxes to Climate Change in Northeast China Forests using IBIS

Abstract

Assessing the long-term exchange of carbon dioxide between terrestrial and the atmosphere is an important priority of the current climate change research. In this regard, it is particularly significant to provide valid data on fluxes of carbon over representative ecosystems. In this study, we used a modified process-based terrestrial ecosystem model (Integrated Biosphere Simulator, IBIS), which represents biogeochemical and biophysical process, coupling the carbon, nitrogen and water cycles on each specific time steps, to generalize our understanding of the temporal and spatial variability of Net Primary Productivity (NPP), Net Ecosystem Productivity (NEP) and Soil Respiration (RS) over northeast China to climate change for the period 1961 to 2080. The model results demonstrate a powerful approach to integrate and expand our knowledge of climate changes on northeast China forest carbon dynamics now and in the future.