摘要
凋落物和植物根系是森林土壤有机碳的主要来源.综述了不同碳输入方式对土壤全碳、微生物生物量碳和可溶性有机碳等碳库组分及土壤呼吸影响的研究进展.不同地区、不同森林土壤有机碳对碳输入的响应程度不同,且采用添加和去除凋落物,以及去除根系方法(DIRT)对土壤碳的影响具有树种差异和区域差异.目前主要侧重于土壤呼吸和碳库组分的研究,亟需开展对土壤碳的结构类型和稳定性,以及土壤生物尤其是土壤动物的响应机制的相关研究.
Litters and plant roots are the main sources of forest soil organic carbon（C）.This paper summarized the effects of the changes in C input on the forest soil C pool and C cycle,and analyzed the effects of these changes on the total soil C,microbial biomass C,dissoluble organic C,and soil respiration.Different forests in different regions had inconsistent responses to C input change,and the effects of litter removal or addition and of root exclusion or not differed with tree species and regions.Current researches mainly focused on soil respiration and C pool fractions,and scarce were about the effects of C input change on the changes of soil carbon structure and stability as well as the response mechanisms of soil organisms especially soil fauna,which should be strengthened in the future.
出处
《应用生态学报》
CAS
CSCD
北大核心
2011年第4期1075-1081,共7页
Chinese Journal of Applied Ecology
基金
国家自然科学基金面上项目(31070436)
国家自然科学基金重点项目(41030533)资助
关键词
凋落物
根系
土壤碳库
土壤呼吸
litter
root system
soil carbon pool
soil respiration
