Temperature drive the altitudinal change in soil carbon and nitrogen of montane forests: Implication for global warming

doi:10.1016/j.catena.2019.104126

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

	Temperature drive the altitudinal change in soil carbon and nitrogen of montane forests: Implication for global warming
	Ma, Mao 1,2; Chang, Ruiying2
刊名	CATENA
	2019-11-01
卷号	182 页码:7
关键词	The Tibetan Plateau C:N ratio Montane forest Soil type Tree species
ISSN号	0341-8162
DOI	10.1016/j.catena.2019.104126
通讯作者	Chang, Ruiying(changruiying@imde.ac.cn)
英文摘要	As a matter of co-varying environmental and biogeochemical factors, controversy remains regarding the altitudinal patterns in soil organic carbon (SOC) and soil total nitrogen (STN) stocks of mountain forests. Here, three dominant montane forests in southern Tibet, namely Abies, Pinus and Picea forests, were heavily sampled from ca. 1700 to 4300 m asl to examine the altitudinal patterns in SOC and STN stocks and the co-varying effects of mean annual temperature (MAT), mean annual precipitation (MAP), tree species and soil type. Overall, SOC and STN stocks in the top 100 cm increased linearly by 54 Mg C/ha and 5 Mg N/ha per 1000 m altitude increase, respectively. The altitudinal trends resulted partly from the tree species shift with altitude, because Pinus forests dominated at lower altitudes (1709 to 3585 m asl) and had generally lower SOC and STN stocks than Abies forests, which dominated at higher altitudes (2615 to 4217 m asl). SOC and STN stocks increased with altitude in Abies (most pronounced) and Pinus forests, whereas no clear altitudinal trend was observed in Picea forests. Soil type was another controlling factor. SOC and STN stocks under similar soil types for each tree species showed universally increasing trends with increasing altitude. All the observed altitudinal trends in SOC and STN stocks were primarily controlled by decreasing MAT with increasing altitude. Our results therefore emphasize that soil C and N of montane forest may be sensitive to future global warming, especially at higher altitudes, currently dominated by Abies forest.
资助项目	National Key Research and Development Program of China[2016YFC0502105] ; National Natural Science Foundation of China[41671206] ; Youth Innovation Promotion Association CAS[2018406]
WOS关键词	ORGANIC-MATTER ; ENVIRONMENTAL CONTROLS ; ELEVATION GRADIENT ; CLIMATE-CHANGE ; STOCKS ; STORAGE ; TURNOVER ; VEGETATION ; DECOMPOSITION ; MOUNTAINS
WOS研究方向	Geology ; Agriculture ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000482493700016
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/26952]
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
通讯作者	Chang, Ruiying
作者单位	1.Sichuan Normal Univ, Fac Geog & Resource Sci, Chengdu 610101, Sichuan, Peoples R China 2.Chinese Acad Sci, Key Lab Mt Environm Evolvement & Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Ma, Mao,Chang, Ruiying. Temperature drive the altitudinal change in soil carbon and nitrogen of montane forests: Implication for global warming[J]. CATENA,2019,182:7.
APA	Ma, Mao,&Chang, Ruiying.(2019).Temperature drive the altitudinal change in soil carbon and nitrogen of montane forests: Implication for global warming.CATENA,182,7.
MLA	Ma, Mao,et al."Temperature drive the altitudinal change in soil carbon and nitrogen of montane forests: Implication for global warming".CATENA 182(2019):7.