Distribution and storage of soil organic carbon in China

doi:10.1029/2001GB001844

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（1985-2004）

	Distribution and storage of soil organic carbon in China
	Wu, HB; Guo, ZT; Peng, CH
刊名	GLOBAL BIOGEOCHEMICAL CYCLES
	2003-05-15
卷号	17 期号:2
关键词	organic carbon storage carbon density soil China
DOI	10.1029/2001GB001844
文献子类	Article
英文摘要	Surface soils hold the largest terrestrial organic carbon pool, although estimates of the world's soil organic carbon storage remain controversial, largely due to spatial data gaps or insufficient data density. In this study, spatial distribution and storage of soil organic carbon in China are estimated using the published data from 34,411 soil profiles investigated during China's second national soil survey. Results show that organic carbon density in soils varies from 0.73 to 70.79 kg C/m(2) with the majority ranging between 4.00 and 11.00 kg C/m(2). Carbon density decreases from east to west. A general southward increase is obvious for western China, while carbon density decreases from north to south in eastern China. Highest values are observed in forest soils in northeast China and in subalpine soils in the southeastern part of the Tibetan Plateau. The average density of similar to8.01 kg C/m(2) in China is lower than the world's mean organic carbon density in soil (similar to10.60 kg C/m(2)), mainly due to the extended arid and semi-arid regions. Total organic carbon storage in soils in China is estimated to be similar to70.31 Pg C, representing similar to4.7% of the world storage. Carbon storage in the surface organic horizons which is most sensitive to interactions with the atmosphere and environmental change is similar to32.54 Pg C.
学科主题	Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
WOS关键词	LAND-USE ; CLIMATE ; MATTER ; DYNAMICS ; BIOMASS ; BUDGET ; CYCLE ; MODEL ; SINK ; CO2
WOS研究方向	Environmental Sciences ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000183102900004
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/11853]
专题	黄土与第四纪地质国家重点实验室（1985-2004）
推荐引用方式 GB/T 7714	Wu, HB,Guo, ZT,Peng, CH. Distribution and storage of soil organic carbon in China[J]. GLOBAL BIOGEOCHEMICAL CYCLES,2003,17(2).
APA	Wu, HB,Guo, ZT,&Peng, CH.(2003).Distribution and storage of soil organic carbon in China.GLOBAL BIOGEOCHEMICAL CYCLES,17(2).
MLA	Wu, HB,et al."Distribution and storage of soil organic carbon in China".GLOBAL BIOGEOCHEMICAL CYCLES 17.2(2003).