Decreasingnutrient concentrations in soils and trees with increasing elevation across a treeline ecotone in Rolwaling Himal, Nepal
文献类型：期刊论文
| 作者 | Simon DROLLINGER; Michael MÜLLER; Timo KOBL; Niels SCHWAB; Jürgen BÖHNER; Udo SCHICKHOFF; Thomas SCHOLTEN |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2017-05 |
| 卷号 | 14期号:5页码:843-858 |
| 关键词 | Foliar Nutrients Himalaya Nitrogen Nutrient Cycling Podzol Treeline |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-016-4228-4 |
| 通讯作者 | Simon DROLLINGER |
| 文献子类 | 期刊论文 |
| 英文摘要 | At 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. |
| 语种 | 英语 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/18711]  |
| 专题 | Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.5 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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