The increase of greenhouse gas,such as N2O and CO2 has been proved to be the main factors leading global warming effects.Emission of CO2 caused by agricultural production is found to account for 25% of the total carbon emission.Therefore,investigations of factors affecting soil organic C are of great importance for increasing C sequestration and retention in agricultural soil system,decreasing C emission caused unreasonable land utilization,and ensuring the sustainable development of agricultural and biosph...
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