The acceleration of global warming due to soil heterotrophic respiration(SHR)feedbacks may he potentially important mechanisms which have significant effects on global carbon budgets.

NEE (net ecosystem exchange) in agro-ecosystems in Sanjiang Plain were estimated according to soil heterotrophic respiration and NPP (net primary production).

Qualification of soil heterotrophic respiration is an important component to estimate ecosystem carbon balance.

Soil heterotrophic respiration(HR) was investigated in one tract of native Castanopsis kawakamii forest(NF),a 33-year-old Castanopsis kawakamii plantation(CK) and a Cunninghamia lanceolata(Chinese fir,CF) plantation of the same age in Sanming,Fujian Province,China.

The correction method of soil temperature and soil volumetric water contents to standardized soil respiration rate was adopted.

To investigate the effects of elevated temperature on the soil organic carbon content,soil respiration rate,and soil enzyme activities in subalpine Picea asperata plantations in western Sichuan Province of China,a simulation study was conducted in situ with open-top chambers from November 2005 to July 2007.

The soil respiration rate was measured with an IRGA in the natural Larix gmelinii forest of the Northern Great Xing anling Mountain in the cool temperate zone.

Soil respiration and its controlling factors at Phragmites communis wetland in Panjin;

The effects of temperature and soil moisture on soil respiration in the cropland under elevated pCO_2;

Daily and seasonal dynamics of soil respiration and their environmental controlling factors in Stipa krylovii steppe;

The results showed that the soil total respiration rate,heterotrophic respiration rate,autotrophic respiration rate and litter annual respiration rate of Moso bamboo plantation were 2.