IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Leaf Litter Decomposition in Three Subalpine Forests along an Elevation Gradient in Tibet
Fan, Jihui1,2; Zhang, Xiaoke1; Lui, Xuyang1; Yan, Yan2; Wang, Xiaodan1
Corresponding AuthorXiaodan Wang
2014
Source PublicationPOLISH JOURNAL OF ENVIRONMENTAL STUDIES
ISSN1230-1485
Volume23Issue:4Pages:1137-1146
SubtypeArticle
AbstractLitter decomposition is a fundamental ecosystem process, and climate and litter chemistry strongly control rates of litter decay. In this work, three forests along an elevation gradient on the eastern slope of Sergyemla Mountain were selected to compare litter decomposition and chemical fraction loss rates, and further to evaluate the effects of environmental factors and litter chemistry on the litter decomposition process.The leaf litter decomposition coefficient of the mixed conifer and broadleaf forest (MCBF, 3,169 m a.s.l.),sclerophyllous evergreen broadleaf forest (SEBF, 3,453 m a.s.l.), and subalpine dark coniferous forest (SDCF,3,957 m a.s.l.) sites were 0.04, 0.03, and 0.02 month-1, respectively. The litter mass loss at the MCBF site significantly correlated with litter quality, but that of the SEBF and the SDCF sites did not. In addition, there was a significant positive relationship between the litter mass loss and temperature along the elevation gradients. This study demonstrates that the litter decomposition rate decreases with increasing altitude along the elevation
gradient. Climate is the key factor influencing litter decay across environmental gradients, but litter qualityalso affects decomposition rates in low-elevation forests.; Litter decomposition is a fundamental ecosystem process, and climate and litter chemistry strongly control rates of litter decay. In this work, three forests along an elevation gradient on the eastern slope of Sergyemla Mountain were selected to compare litter decomposition and chemical fraction loss rates, and further to evaluate the effects of environmental factors and litter chemistry on the litter decomposition process. The leaf litter decomposition coefficient of the mixed conifer and broadleaf forest (MCBF, 3,169 m a.s.l), sclerophyllous evergreen broadleaf forest (SEBF, 3,453 m a.s.l.), and subalpine dark coniferous forest (SDCF, 3,957 m a.s.l.) sites were 0.04, 0.03, and 0.02 month(-1), respectively. The litter mass loss at the MCBF site significantly correlated with litter quality, but that of the SEBF and the SDCF sites did not. In addition, there was a significant positive relationship between the litter mass loss and temperature along the elevation gradients. This study demonstrates that the litter decomposition rate decreases with increasing altitude along the elevation gradient. Climate is the key factor influencing litter decay across environmental gradients, but litter quality also affects decomposition rates in low-elevation forests.
KeywordLitter Decomposition Litter Quality Subalpine Forest Elevation Gradient Southeastern Tibet
Subject Area自然地理学
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
URL查看原文
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordTROPICAL RAIN-FOREST ; TEMPERATE DECIDUOUS FOREST ; NUTRIENT RELEASE ; TUNDRA ECOTONE ; RATES ; QUALITY ; CLIMATE ; DYNAMICS ; CARBON ; SOILS
Language英语
WOS SubjectEnvironmental Sciences
WOS IDWOS:000341337900009
Funding OrganizationNational Natural Science Foundation of China(41001018) ; action-plan of the Chinese Academy of Sciences (CAS) for West Development(KZCX2-XB3-08)
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/7510
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, IMHE, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, IMHE, Xainza Alpine Steppe & Wetland Ecosyst Observat &, Xainza 853100, Peoples R China
Recommended Citation
GB/T 7714
Fan, Jihui,Zhang, Xiaoke,Lui, Xuyang,et al. Leaf Litter Decomposition in Three Subalpine Forests along an Elevation Gradient in Tibet[J]. POLISH JOURNAL OF ENVIRONMENTAL STUDIES,2014,23(4):1137-1146.
APA Fan, Jihui,Zhang, Xiaoke,Lui, Xuyang,Yan, Yan,&Wang, Xiaodan.(2014).Leaf Litter Decomposition in Three Subalpine Forests along an Elevation Gradient in Tibet.POLISH JOURNAL OF ENVIRONMENTAL STUDIES,23(4),1137-1146.
MLA Fan, Jihui,et al."Leaf Litter Decomposition in Three Subalpine Forests along an Elevation Gradient in Tibet".POLISH JOURNAL OF ENVIRONMENTAL STUDIES 23.4(2014):1137-1146.
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