IMHE OpenIR  > 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 Mao1,2; Chang Ruiying2
2019
Source PublicationCATENA
ISSN0341-8162
EISSN1872-6887
Volume182Pages:UNSP 104126
SubtypeArticle
Contribution Rank2
AbstractAs 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.
KeywordThe Tibetan Plateau C:N ratio Montane forest Soil type Tree species
DOI10.1016/j.catena.2019.104126
Indexed BySCI
Language英语
WOS IDWOS:000482493700016
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Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/26952
Collection山地表生过程与生态调控重点实验室
Corresponding AuthorChang Ruiying
Affiliation1.The Faculty of Geography and Resource Sciences, Sichuan Normal University, Chengdu 610101, China;
2.Key Laboratory of Mountain Environment Evolvement and Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
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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:UNSP 104126.
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,UNSP 104126.
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):UNSP 104126.
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