气候变化领域集成服务门户(CCPortal): Carbon and nitrogen properties of permafrost over the Eboling Mountain in the upper reach of Heihe River basin, Northwestern China

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DOI	10.1657/AAAR00C-13-095
	Carbon and nitrogen properties of permafrost over the Eboling Mountain in the upper reach of Heihe River basin, Northwestern China
	Mu, Cuicui; Zhang, Tingjun; Wu, Qingbai; Cao, Bin; Zhang, Xiankai; Peng, Xiaoqing; Wan, Xudong; Zheng, Lei; Wang, Qingfeng; Cheng, Guodong
发表日期	2015
ISSN	1523-0430
EISSN	1938-4246
起始页码	203
结束页码	211
卷号	47 期号:2
英文摘要	The sensitivity of soil carbon and nitrogen to warming is a major uncertainty in projections of climate. However, previous studies about soil organic carbon (SOC) stocks and potential emission predominantly concentrated on the shallow soil layer in high latitude ecosystems. In this study, we analyzed the SOC, total nitrogen (TN) and soil inorganic carbon (SIC) stocks, C/N ratios, and stable carbon isotope (delta C-13) in the active layer and permafrost layer on the Eboling Mountain in the upper reach of Heihe River basin, northwestern China. Our results showed that the average stocks of SOC, TN, and SIC in permafrost layer above soil parent materials (71.7 kg m(-2), 8.0 kg m(-2), 34.7 kg m(-2)) were much higher than those in the active layer (44.3 kg m(-2), 5.3 kg m(-2), 12.2 kg m(-2)). The delta C-13 pattern in the soil profiles indicated that historical drainage conditions and pedogenesis were important factors in determining soil organic matter (SOM) stocks in this permafrost region. The delta C-13 and C/N ratios of the transient layer and some layers of permafrost implied that the degradation of SOM was different. These results highlight that carbon and nitrogen in permafrost regions with Alpine Kobresia meadow could make significant contribution to China's terrestrial carbon cycle.
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography
WOS类目	Environmental Sciences ; Geography, Physical
WOS关键词	SOIL ORGANIC-CARBON ; CLIMATE ; PEAT ; STORAGE ; ACCUMULATION ; INDICATORS ; DELTA-C-13 ; ISOTOPES ; PATTERNS ; RELEASE
WOS记录号	WOS:000355627500003
来源期刊	ARCTIC ANTARCTIC AND ALPINE RESEARCH
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/240245
作者单位	[Mu, Cuicui; Zhang, Tingjun; Cao, Bin; Zhang, Xiankai; Peng, Xiaoqing; Wan, Xudong; Zheng, Lei] Lanzhou Univ, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China; [Wu, Qingbai; Wang, Qingfeng; Cheng, Guodong] Chinese Acad Sci, Lanzhou Univ, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China; [Zhang, Tingjun] Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Mu, Cuicui,Zhang, Tingjun,Wu, Qingbai,et al. Carbon and nitrogen properties of permafrost over the Eboling Mountain in the upper reach of Heihe River basin, Northwestern China[J]. 中国科学院西北生态环境资源研究院,2015,47(2).
APA	Mu, Cuicui.,Zhang, Tingjun.,Wu, Qingbai.,Cao, Bin.,Zhang, Xiankai.,...&Cheng, Guodong.(2015).Carbon and nitrogen properties of permafrost over the Eboling Mountain in the upper reach of Heihe River basin, Northwestern China.ARCTIC ANTARCTIC AND ALPINE RESEARCH,47(2).
MLA	Mu, Cuicui,et al."Carbon and nitrogen properties of permafrost over the Eboling Mountain in the upper reach of Heihe River basin, Northwestern China".ARCTIC ANTARCTIC AND ALPINE RESEARCH 47.2(2015).