DOI: 10.1016/j.foreco.2015.02.001
Scopus记录号: 2-s2.0-84923164106
论文题名: Carbon pools of semi-arid Picea crassifolia forests in the Qilian Mountains (north-eastern Tibetan Plateau)
作者: Wagner B. ; Liang E. ; Li X. ; Dulamsuren C. ; Leuschner C. ; Hauck M.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 343 起始页码: 136
结束页码: 143
语种: 英语
英文关键词: Forest biomass
; Oroboreal forest
; Qilian Shan
; Qinghai spruce
; Soil organic carbon
; Tibetan Plateau
Scopus关键词: Arid regions
; Biomass
; Budget control
; Carbon
; Ecology
; Ecosystems
; Lakes
; Landforms
; Organic carbon
; Soil moisture
; Soils
; Forest biomass
; Oroboreal forest
; Qilian Shan
; Qinghai spruce
; Soil organic carbon
; Tibetan Plateau
; Forestry
; alpine environment
; anthropogenic effect
; boreal forest
; carbon sequestration
; climate change
; coniferous forest
; phytomass
; semiarid region
; soil carbon
; soil moisture
; temperate environment
; Biomass
; Conservation
; Deserts
; Ecosystems
; Forests
; Picea
; China
; Qilian Mountains
; Coniferophyta
; Picea
; Picea crassifolia
; Picea engelmannii
英文摘要: The vast alpine grasslands of the Tibetan Plateau are lined by a belt of oroboreal coniferous forests in the transition zone to the Central Asian semi-deserts and deserts which may play important roles in the hydrology and biogeochemistry of the region. Many of these forests exist under semi-arid climates, are exposed to rapid climate warming and suffer from intensive human impact. We investigated the carbon stocks in biomass and soil in the Picea crassifolia (Qinghai spruce) forests of the Qilian Mountains, north-eastern Tibetan Plateau. In 18 forest plots at 2600-2800m elevation, we found ecosystem carbon stocks of 348MgCha-1 with carbon densities of 43MgCha-1 in the live and dead aboveground biomass, 12MgCha-1 in roots, 3MgCha-1 in litter and 305MgCha-1 in the soil (SOC; 0-100cm). The belowground carbon pools exceed averages reported for northern boreal forests and even more clearly for zonal forest vegetation in the temperate zone. The high SOC density in the P. crassifolia forests are probably the result of slow decomposition rates due to low soil temperatures in combination with low soil moisture. The widespread degradation of mountain spruce forests to shrubland reduces the ecosystem carbon stock by >85MgCha-1, and is partly caused by a 15%-reduction in SOC. We conclude that the remaining mountain forests of spruce and other conifers at the northern fringe of the Tibetan Plateau play an important role in the regional carbon budget and need urgent conservation. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65506
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Plant Ecology, Albrecht von Haller Institute of Plant Sciences, Georg August University of Göttingen, Untere Karspüle 2, Göttingen, Germany; Key Laboratory of Alpine Ecology and Biodiversity, Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Wagner B.,Liang E.,Li X.,et al. Carbon pools of semi-arid Picea crassifolia forests in the Qilian Mountains (north-eastern Tibetan Plateau)[J]. Forest Ecology and Management,2015-01-01,343