Progress in Research on Soil Respiration

Soil carbon plays an important role in global carbon cycle.Soil respiration is hot topic in the area of carbon cycle research.It has become the largest source that terrestrial ecosystems releases CO2 to atmosphere,and is also an index for many functional processes of ecosystems.Based on the research on soil respiration of other scholars,factors having an effect on soil respiration are temperature,humidity,the types of community,physical and chemical property of soil,etc,respectively.Some methods of measuring soil respiration and its characteristic were introduced.Finally,the paper made a summary of achievements on soil respiration in the world and suggested emphases of further study in this field.