Soil respiration plays an important part in the balance of the global carbon budget.This paper reviews the function of the global carbon balance,the classification of soil respiration,and the impact factors on grassland ecosystems.The ratios of each proportion of grassland ecosystem soil respiration differed because of different spatial and temporal scales.This respiration also responded differently to biotic,abiotic,and human activity factors.The abiotic impact factors included soil temperature(potentially...
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