DOI: 10.1111/gcb.13234
论文题名: Soil carbon and nitrogen stocks in forests along an altitudinal gradient in the eastern Himalayas and a meta-analysis of global data
作者: Tashi S. ; Singh B. ; Keitel C. ; Adams M.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2016
卷: 22, 期: 6 起始页码: 2255
结束页码: 2268
语种: 英语
英文关键词: Altitude
; Carbon stocks
; Forest
; Himalayas
; Meta-analysis
; Nitrogen stocks
Scopus关键词: concentration (composition)
; meta-analysis
; nitrogen
; soil carbon
; soil chemistry
; Himalayas
; carbon
; nitrogen
; soil
; altitude
; Bhutan
; biomass
; chemistry
; forest
; meta analysis
; soil
; Altitude
; Bhutan
; Biomass
; Carbon
; Forests
; Nitrogen
; Soil
英文摘要: High-altitude soils potentially store a large pool of carbon (C) and nitrogen (N). The assessment of total C and N stocks in soils is vital to understanding the C and N dynamics in terrestrial ecosystems. In this study, we examined effects of altitude and forest composition on soil C and N along a transect from 317 to 3300 m a.s.l. in the eastern Himalayas. We used meta-analysis to establish the context for our results on the effects of altitude on soil C, including variation with depth. Total C and N contents of soils significantly increased with altitude, but decreased with soil depth. Carbon and N were similarly correlated with altitude and temperature, and temperature was seemingly the main driver of soil C along the altitudinal gradient. Altitude accounted for 73% of the variation in C and 47% of the variation in N stocks. Soil pH and cation exchange capacity were correlated with both soil C and N stocks. Increases in soil C and N stocks were related to forest composition, forest basal area as well as quantity of leaf litter that were in turn influenced by altitude and temperature. Concentrations of C in foliage increased by 2.1% for every 1000 m rise in altitude, while that in leaf litter increased by 2.3%. © 2016 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61391
Appears in Collections: 影响、适应和脆弱性
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作者单位: Centre for Carbon, Water and Food, Faculty of Agriculture and Environment, The University of Sydney, Eveleigh, NSW, Australia; Centre for Carbon, Water and Food, Faculty of Agriculture and Environment, The University of Sydney, Eveleigh, NSW, Australia
Recommended Citation:
Tashi S.,Singh B.,Keitel C.,et al. Soil carbon and nitrogen stocks in forests along an altitudinal gradient in the eastern Himalayas and a meta-analysis of global data[J]. Global Change Biology,2016-01-01,22(6)