The simulated CH 4 flux ...

• Main Authors: Zhang, Wenxin, Paul A Miller, Benjamin Smith, Rita Wania, Torben Koenigk, Döscher, Ralf
• Format: Still Image
• Language: unknown
• Published: IOP Publishing 2013
• Subjects: Other environmental sciences not elsewhere classified; Arctic; Subarctic; Tundra
• Online Access: https://dx.doi.org/10.6084/m9.figshare.1011562; https://iop.figshare.com/articles/figure/_The_simulated_CH_sub_4_sub_flux/1011562

Figure 4. The simulated CH 4 flux. (a) The monthly CH 4 fluxes from 1961 to 2080. (b) The change of the CH 4 flux between the recent and the future periods. Values are for the wetland fraction of the study area only. Abstract One major challenge to the improvement of regional climate scenarios for the northern high latitudes is to understand land surface feedbacks associated with vegetation shifts and ecosystem biogeochemical cycling. We employed a customized, Arctic version of the individual-based dynamic vegetation model LPJ-GUESS to simulate the dynamics of upland and wetland ecosystems under a regional climate model–downscaled future climate projection for the Arctic and Subarctic. The simulated vegetation distribution (1961–1990) agreed well with a composite map of actual arctic vegetation. In the future (2051–2080), a poleward advance of the forest–tundra boundary, an expansion of tall shrub tundra, and a dominance shift from deciduous to evergreen boreal conifer forest over northern Eurasia were ...