IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2017  > Vol14 No.5
Decreasingnutrient concentrations in soils and trees with increasing elevation across a treeline ecotone in Rolwaling Himal, Nepal
Simon DROLLINGER; Michael MÜLLER; Timo KOBL; Niels SCHWAB; Jürgen BÖHNER; Udo SCHICKHOFF; Thomas SCHOLTEN
Corresponding AuthorSimon DROLLINGER
2017-05
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume14Issue:5Pages:843-858
Subtype期刊论文
AbstractAt a global scale, tree growth in alpine treeline ecotones is limited by low temperatures. At a local scale, however, tree growth at its upper limit depends on multiple interactions of influencing factors and mechanisms. The aim of our research was to understand local scale effects of soil properties and nutrient cycling on tree growth limitation, and their interactions with other abiotic and biotic factors in a near-natural Himalayan treeline ecotone. Soil samples of different soil horizons, litter, decomposition layers, and foliage samples of standing biomass were collected in four altitudinal zones along three slopes, and were analysed for exchangeable cations and nutrient concentrations, respectively. Additionally, soil and air temperature, soil moisture, precipitation, and tree physiognomy patterns were evaluated. Both soil nutrients and foliar macronutrient concentrations of nitrogen (N), magnesium (Mg), potassium (K), and foliar phosphorus (P) decrease significantly with elevation. Foliar manganese (Mn) concentrations, bycontrast, are extraordinarily high at high elevation sites. Potential constraining factors on tree growth were identified using multivariate statistical approaches. We propose that tree growth, treeline position and vegetation composition are affected by nutrient limitation, which in turn, is governed by low soil temperatures and influenced by soil moisture conditions.
KeywordFoliar Nutrients Himalaya Nitrogen Nutrient Cycling Podzol Treeline
DOI10.1007/s11629-016-4228-4
Indexed BySCI
Language英语
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18711
CollectionJournal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.5
Recommended Citation
GB/T 7714
Simon DROLLINGER,Michael MÜLLER,Timo KOBL,et al. Decreasingnutrient concentrations in soils and trees with increasing elevation across a treeline ecotone in Rolwaling Himal, Nepal[J]. Journal of Mountain Science,2017,14(5):843-858.
APA Simon DROLLINGER.,Michael MÜLLER.,Timo KOBL.,Niels SCHWAB.,Jürgen BÖHNER.,...&Thomas SCHOLTEN.(2017).Decreasingnutrient concentrations in soils and trees with increasing elevation across a treeline ecotone in Rolwaling Himal, Nepal.Journal of Mountain Science,14(5),843-858.
MLA Simon DROLLINGER,et al."Decreasingnutrient concentrations in soils and trees with increasing elevation across a treeline ecotone in Rolwaling Himal, Nepal".Journal of Mountain Science 14.5(2017):843-858.
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