Altitudinal Change in Distribution of Soil Carbon and Nitrogen in Tibetan Montane Forests

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Altitudinal Change in Distribution of Soil Carbon and Nitrogen in Tibetan Montane Forests
	Chang, Ruiying; Wang, Genxu; Fei, Ran; Yang, Yang; Luo, Ji; Fan, Jianrong
刊名	SOIL SCIENCE SOCIETY OF AMERICA JOURNAL
	2015-09-01
卷号	79 期号:5 页码:1455-1469
关键词	FINE-ROOT BIOMASS ORGANIC-CARBON VERTICAL-DISTRIBUTION SITE CHARACTERISTICS DEPTH DISTRIBUTION LAND-USE CHINA STORAGE VEGETATION MOUNTAINS
ISSN号	0361-5995
通讯作者	Wang, Genxu
英文摘要	Knowledge of vertical patterns of soil organic C (SOC) and soil total N (STN) can improve our understanding of the dynamics of SOC and STN along a profile and the potential response of SOC and STN to climate change. However, such knowledge is limited. In this study, three common Tibetan forest types, dominated by Abies, Pinus, and Picea species, were sampled across a large altitude gradient (1700-4300 m asl). Vertical depths of SOC and STN in these forests were determined, and their changes with altitude, aspect, and gradient and the associated regulating factors were analyzed using structural equation modeling (SEM). Species shift along the altitude gradient has a significant effect on SOC and STN depth patterns, partly inducing the lack of a trend in SOC and STN vertical distributions across the entire altitude range. For an individual genus, the SEM model demonstrated species-dependent altitudinal changes in patterns that were shallower with increased altitude for Abies and Pinus, but no change was detected for Picea. Greater altitudinal increases in SOC and STN stocks in the topsoil relative to the deeper layer were correlated with increased depths for Abies and Pinus. Eastern and southern aspects had a greater proportion of topsoil SOC and STN than western and northern aspects for Abies and Pinus. Gradient had a limited effect on SOC and STN vertical distribution across the three genera. Our results indicate a significant change in SOC and STN depth patterns associated with species change and the topographic effects on these vertical patterns.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Soil Science
研究领域[WOS]	Agriculture
关键词[WOS]	FINE-ROOT BIOMASS ; ORGANIC-CARBON ; VERTICAL-DISTRIBUTION ; SITE CHARACTERISTICS ; DEPTH DISTRIBUTION ; LAND-USE ; CHINA ; STORAGE ; VEGETATION ; MOUNTAINS
收录类别	SCI
语种	英语
WOS记录号	WOS:000365399100019
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/13940]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室成都山地灾害与环境研究所_数字山地与遥感应用中心
作者单位	Chinese Acad Sci, Key Lab Mt Environm Evolvement & Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Chang, Ruiying,Wang, Genxu,Fei, Ran,et al. Altitudinal Change in Distribution of Soil Carbon and Nitrogen in Tibetan Montane Forests[J]. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL,2015,79(5):1455-1469.
APA	Chang, Ruiying,Wang, Genxu,Fei, Ran,Yang, Yang,Luo, Ji,&Fan, Jianrong.(2015).Altitudinal Change in Distribution of Soil Carbon and Nitrogen in Tibetan Montane Forests.SOIL SCIENCE SOCIETY OF AMERICA JOURNAL,79(5),1455-1469.
MLA	Chang, Ruiying,et al."Altitudinal Change in Distribution of Soil Carbon and Nitrogen in Tibetan Montane Forests".SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 79.5(2015):1455-1469.