Indications of nitrogen-limited methane uptake in tropical forest soils
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منابع مشابه
Synergistic effects of dissolved organic carbon and inorganic nitrogen on methane uptake in forest soils without and with freezing treatment
There is limited knowledge about how the interaction of dissolved organic carbon (DOC) and inorganic nitrogen (N) released into the soil just after freezing can affect methane (CH4) uptake in forest soils. Here, we present how freezing treatment and glucose, as a DOC source, can affect the roles of NH4(+)-N and NO3(-)-N in inhibiting soil CH4 uptake, by using soil-core incubation experiments. A...
متن کاملEcology of Nitrogen Fixing, Nitrifying, and Denitrifying Microorganisms in Tropical Forest Soils
Soil microorganisms play important roles in nitrogen cycling within forest ecosystems. Current research has revealed that a wider variety of microorganisms, with unexpected diversity in their functions and phylogenies, are involved in the nitrogen cycle than previously thought, including nitrogen-fixing bacteria, ammonia-oxidizing bacteria and archaea, heterotrophic nitrifying microorganisms, a...
متن کاملMethane uptake in forest soils along an urban-to-rural gradient in Pearl River Delta, South China
We investigated soil CH4 fluxes from six forests along an urban-to-rural gradient in Guangzhou City metropolitan area, South China. The most significant CH4 consumption was found in the rural site, followed by suburban, and then urban forest sites. The rates of CH4 uptake were significantly higher (by 38% and 44%, respectively for mixed forest and broadleaf forest) in the rural than in the urba...
متن کاملEffects of long-term nitrogen fertilization on the uptake kinetics of atmospheric methane in temperate forest soils.
To determine whether repeated, long-term NH(4) (+) fertilization alters the enzymatic function of the atmospheric CH(4) oxidizer community in soil, we examined CH(4) uptake kinetics in temperate pine and hardwood forest soils amended with 150 kg N ha(-1) y(-1) as NH(4)NO(3) for more than a decade. The highest rates of atmospheric CH(4) consumption occurred in the upper 5 cm mineral soil of the ...
متن کاملMethane uptake in urban forests and lawns.
The largest natural biological sink for the radiatively active trace gas methane (CH4) is bacteria in soils that consume CH4 as an energy and carbon source. This sink has been shown to be sensitive to nitrogen (N) inputs and alterations of soil physical conditions. Given this sensitivity, conversion of native ecosystems to urban, suburban, and exurban managed lawns thus has potential to affect ...
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تاریخ انتشار 2013