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Model outputs include daily fluxes of various N-gas species (e.g., N 2 O, NO x, N 2); daily CO 2 flux from heterotrophic soil respiration; soil organic C and N; net primary productivity; daily water and nitrate (NO 3) leaching, and other ecosystem parameters. Daycent has been tested using data from various native and managed systems.
Dryland inhabitants' lifestyle provides global environmental benefits which contribute to halt climate change, such as carbon sequestration and species conservation. Dryland biodiversity is equally of central importance as to ensuring sustainable development , along with providing significant global economic values through the provision of ...
Carbon sequestration is the process of storing carbon in a carbon pool. [2]: 2248 It plays a crucial role in limiting climate change by reducing the amount of carbon dioxide in the atmosphere. There are two main types of carbon sequestration: biologic (also called biosequestration) and geologic. [3]
CWD, while itself not particularly rich in nitrogen, contributes nitrogen to the ecosystem by acting as a host for nonsymbiotic free-living nitrogen-fixing bacteria. [8] Scientific studies show that coarse woody debris can be a significant contributor to biological carbon sequestration. Trees store atmospheric carbon in their wood using ...
Afforestation critics argue that ecosystems without trees are not necessarily degraded, and many of them can store carbon as they are; for example, savannas and tundra store carbon underground. [ 10 ] [ 11 ] Carbon sequestration estimates in these areas often do not include the total amount of carbon reductions in soils and slowing tree growth ...
Land cover change greatly decreases the amount of carbon uptake in the terrestrial biosphere. It modifies the local ecosystem, often replacing carbon-rich forest with agricultural or urban land use. This releases the carbon stored in the former land cover type and simultaneously decreases the biosphere's ability to absorb carbon from the ...
Land-use change can be a factor in CO 2 (carbon dioxide) atmospheric concentration, and is thus a contributor to global climate change. [14] IPCC estimates that land-use change (e.g. conversion of forest into agricultural land) contributes a net 1.6 ± 0.8 Gt carbon per year to the atmosphere.
There is also exchange with carbon in the sediments, e.g., burial of organic carbon, which is important for carbon sequestration in aquatic habitats. [ 50 ] Aquatic systems are very important in global carbon sequestration; e.g., when different European ecosystems are compared, inland aquatic systems form the second largest carbon sink (19–41 ...