摘要
通过土壤呼吸作用向大气释放CO2是陆地生态系统碳循环的一个最主要的环节,也是人类活动影响下陆地生态系统对大气中CO2浓度产生影响,从而导致全球气候变化的关键生态学过程,因而成为全球碳循环研究中倍受关注的核心问题[33,37,38]。1土壤呼吸的测定方...
Soil respiration is a key process in the carbon cycle for grassland ecosystems. The commonly-used methods for measuring soil respiration were introduced in this paper. The CO_2 flux in soil respiration for major grassland communities in the world and its relation to vegetation and climate were summarized and expounded. The impacts of land-use changes on soil respiration were discussed. Finally, the turnover and residence time of soil organic matter in the soils of different grasslands were compared.
出处
《生态学杂志》
CAS
CSCD
北大核心
1998年第4期45-51,共7页
Chinese Journal of Ecology