Multi-molecular tracers of terrestrial carbon transfer across the pan-Arctic -- Part 1
نویسندگان
چکیده
Introduction Conclusions References
منابع مشابه
The role of snow cover affecting boreal-arctic soil freeze–thaw and carbon dynamics
Northern Hemisphere permafrost affected land areas contain about twice as much carbon as the global atmosphere. This vast carbon pool is vulnerable to accelerated losses through mobilization and decomposition under projected global warming. Satellite data records spanning the past 3 decades indicate widespread reductions (∼ 0.8– 1.3 days decade) in the mean annual snow cover extent and frozen-s...
متن کاملThe role of snow cover affecting boreal-arctic soil freezeâ•fithaw and carbon dynamics
Northern Hemisphere permafrost affected land ar eas contain abont twice as mnch carbon as the global at mosphere. This vast carbon pool is vnlnerable to acceler ated losses throngh mobilization and decomposition nnder projected global warming. Satellite data records sparming the past 3 decades indicate widespread redactions ( ~ 0.81.3 days decade “ ̂ ) in the mean aimnal snow cover extent and...
متن کاملInsights and issues with simulating terrestrial DOC loading of Arctic river networks.
Terrestrial carbon dynamics influence the contribution of dissolved organic carbon (DOC) to river networks in addition to hydrology. In this study, we use a biogeochemical process model to simulate the lateral transfer of DOC from land to the Arctic Ocean via riverine transport. We estimate that, over the 20th century, the pan-Arctic watershed has contributed, on average, 32 Tg C/yr of DOC to r...
متن کاملDifferential mobilization of terrestrial carbon pools in Eurasian Arctic river basins.
Mobilization of Arctic permafrost carbon is expected to increase with warming-induced thawing. However, this effect is challenging to assess due to the diverse processes controlling the release of various organic carbon (OC) pools from heterogeneous Arctic landscapes. Here, by radiocarbon dating various terrestrial OC components in fluvially and coastally integrated estuarine sediments, we pres...
متن کاملHow the insulating properties of snow affect soil carbon 2 distribution in the continental pan - Arctic area
6 [1] We demonstrate the effect of an ecosystem differentiated insulation by snow on the soil 7 thermal regime and on the terrestrial soil carbon distribution in the pan-Arctic area. This is 8 done by means of a sensitivity study performed with the land surface model ORCHIDEE, 9 which furthermore provides a first quantification of this effect. Based on field campaigns 10 reporting higher therma...
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