水土保持通报2012，Vol.32Issue(6)：98-101,4.
黄土丘陵区典型草地土壤有机碳及微生物量碳的分布特征
Distribution Characteristics of Soil Organic Carbon and Microbial Biomass Carbon in Loess Hilly Regain
摘要
Abstract
A study was conducted to investigate the distribution of total soil organic carbon,soil microbial biomass carbon and organic carbon in different size soil aggregates in three typical grasslands that were dominated by Panicum virgatum,Bothriochia ischaemum,Stipa bungeana in hilly-gully region on the Loess Plateau.The results showed that total soil organic carbon,soil microbial biomass carbon and organic carbon content in soil aggregates was higher in the soil surface than in other layers.The organic carbon contents of different grasslands in a descending order were Panicum virgatumBothriochia ischaemumStipa bungeana.A clear relationship was found between the organic carbon contents and the sizes of soil aggregates.2-1 mm aggregates had the highest soil carbon content.The total organic carbon content and organic carbon content in soil aggregates in Panicum virgatum grassland were higher than those in Bothriochia ischaemum grassland and Stipa bungeana grassland,while the microbial biomass carbon content was lower than that in Bothriochia ischaemum but higher than that in Stipa bungeana grassland.关键词
土壤有机碳/微生物量碳/土壤团聚体/黄土丘陵区Key words
soil organic carbon/soil microbial biomass carbon/soil aggregates/loess hilly regain分类
农业科技引用本文复制引用
邓瑞芬,王百群,刘普灵,陈龙飞,刘栋..黄土丘陵区典型草地土壤有机碳及微生物量碳的分布特征[J].水土保持通报,2012,32(6):98-101,4.基金项目
中国科学院战略性先导科技专项“应对气候变化的碳收支认证及相关问题” （）
