Black carbon in grassland ecosystems of the world

doi:10.1029/2009GB003669

	Black carbon in grassland ecosystems of the world
	Rodionov, Andrej 2,3; Amelung, Wulf 3; Peinemann, Norman 4; Haumaier, Ludwig 2,5; Zhang, Xudong 6; Kleber, Markus 7; Glaser, Bruno 2; Urusevskaya, Inga 1; Zech, Wolfgang 2
刊名	GLOBAL BIOGEOCHEMICAL CYCLES
	2010-07-30
卷号	24
ISSN号	0886-6236
DOI	10.1029/2009GB003669
英文摘要	Black carbon (BC) is the product of incomplete burning processes and a significant component of the passive soil organic carbon (SOC) pool. The role of BC in the global carbon cycle is still unclear. This study aimed to quantify and characterize BC in major grassland ecosystems of the world. Twenty-eight representative soil profiles (mainly Mollisols) were sampled in the Russian Steppe, the U. S. Great Plains, the Argentinian Pampa, the Manchurian Plains in China, and the Chernozem region in central Germany. Black carbon contents were estimated using benzene polycarboxylic acids (BPCA) as a molecular marker, and indications about the origin of the BC were derived from bulk and compound-specific delta(13)C analyses and radiocarbon dating of bulk soil organic matter (SOM). Our findings suggest that between 5% and 30% of SOC stocks consist of BC. Maximum BC contributions to SOC frequently were found at deeper parts of the A horizon with (14)C ages younger than 7000 years BP; that is, incorporation of C as charred particles accompanied ecosystem development since the mid-Holocene. Most of this BC formed from local vegetation, as indicated by a (13)C isotope signature similar to that of bulk SOM. At some sites, also nonlocal sources contributed to soil BC, e. g., fossil fuel BC inputs at the German sites. Black carbon stocks were highest in Chernozems and lowest in Kastanozems. The Russian Steppe and Chinese Manchurian sites stored about 3-4 times more BC (around 3 kg m(-2)) than did the other sites because of thicker A horizons that were rich in BC. On a global scale, we estimate that steppe ecosystems contain between 4 and 17 Pg BC.
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000280585600003
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/121489]
专题	中国科学院沈阳应用生态研究所
通讯作者	Rodionov, Andrej
作者单位	1.Moscow MV Lomonosov State Univ, Fac Soil Sci, Moscow 119991, Russia 2.Univ Bayreuth, Inst Soil Sci & Soil Geog, D-95440 Bayreuth, Germany 3.Univ Bonn, Inst Crop Sci & Resource Conservat, D-53115 Bonn, Germany 4.Univ Nacl Sur, Dept Agron, RA-8000 Bahia Blanca, Buenos Aires, Argentina 5.Univ Bayreuth, Dept Soil Ecol, Bayreuth Ctr Ecol & Environm Res, D-95440 Bayreuth, Germany 6.Chinese Acad Sci, Key Lab Terr Ecol Proc, Inst Appl Ecol, Shenyang 110016, Peoples R China 7.Oregon State Univ, Dept Crop & Soil Sci, Corvallis, OR 97331 USA
推荐引用方式 GB/T 7714	Rodionov, Andrej,Amelung, Wulf,Peinemann, Norman,et al. Black carbon in grassland ecosystems of the world[J]. GLOBAL BIOGEOCHEMICAL CYCLES,2010,24.
APA	Rodionov, Andrej.,Amelung, Wulf.,Peinemann, Norman.,Haumaier, Ludwig.,Zhang, Xudong.,...&Zech, Wolfgang.(2010).Black carbon in grassland ecosystems of the world.GLOBAL BIOGEOCHEMICAL CYCLES,24.
MLA	Rodionov, Andrej,et al."Black carbon in grassland ecosystems of the world".GLOBAL BIOGEOCHEMICAL CYCLES 24(2010).