FACTORS AFFECTING SOIL RESPIRATION IN REFERENCE WITH TEMPERATURE'S ROLE IN THE GLOBAL SCALE
- Publish Date: 1998-09-20
- effect factors /
- Q10 value /
- latitude /
- soil respiration /
Abstract: Soil respiration is CO2 evolution process from soil to atmosphere, mainly produced by soil micro organism and plant roots. It is affected not only by biological factors (vegetation, micro organism, etc.) and environmental factors (temperature, moisture, pH, etc.), but also more and more strongly by man made factors. Based on literature survey, main factors affecting soil respiration were reviewed. The relationships of soil respiration to latitude and to mean annual temperature were analyzed by using the data measured from forest vegetation in the world. As a result, soil respiration rate decreased exponentially with an increase of latitude, and increased with increasing temperature. Following the relationship between soil respiration and temperature, Q10 value (law of Van Hoff) was obtained as 1.57 in the global scale.
|Citation:||Fang Jingyun, Liu Shaohui, Zhao Kun. FACTORS AFFECTING SOIL RESPIRATION IN REFERENCE WITH TEMPERATURE'S ROLE IN THE GLOBAL SCALE[J]. Chinese Geographical Science, 1998, 8(3): 246-255.|