气候变化领域集成服务门户(CCPortal): Carbon pools of semi-arid Picea crassifolia forests in the Qilian Mountains (north-eastern Tibetan Plateau)

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DOI	10.1016/j.foreco.2015.02.001
	Carbon pools of semi-arid Picea crassifolia forests in the Qilian Mountains (north-eastern Tibetan Plateau)
	Wagner, Bettina; Liang, Eryuan; Li, Xiaoxia; Dulamsuren, Choimaa; Leuschner, Christoph; Hauck, Markus
通讯作者	Hauck, M (通讯作者)
发表日期	2015
ISSN	0378-1127
EISSN	1872-7042
起始页码	136
结束页码	143
卷号	343
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, northeastern Tibetan Plateau. In 18 forest plots at 2600-2800 m elevation, we found ecosystem carbon stocks of 348 Mg C ha(-1) with carbon densities of 43 Mg C ha(-1) in the live and dead aboveground biomass, 12 Mg C ha(-1) in roots, 3 Mg C ha(-1) in litter and 305 Mg C ha(-1) in the soil (SOC; 0-100 cm). The below-ground 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 >85 Mg C ha(-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. (C) 2015 Elsevier B.V. All rights reserved.
关键词	SOIL ORGANIC-CARBON NET PRIMARY PRODUCTION SPRUCE STANDS TREE GROWTH STOCKS STORAGE CLIMATE BOREAL CHINA PATTERNS
英文关键词	Forest biomass; Soil organic carbon; Oroboreal forest; Tibetan Plateau; Qilian Shan; Qinghai spruce
语种	英语
WOS研究方向	Forestry
WOS类目	Forestry
WOS记录号	WOS:000352246000014
来源期刊	FOREST ECOLOGY AND MANAGEMENT
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258434
推荐引用方式 GB/T 7714	Wagner, Bettina,Liang, Eryuan,Li, Xiaoxia,et al. Carbon pools of semi-arid Picea crassifolia forests in the Qilian Mountains (north-eastern Tibetan Plateau)[J]. 中国科学院青藏高原研究所,2015,343.
APA	Wagner, Bettina,Liang, Eryuan,Li, Xiaoxia,Dulamsuren, Choimaa,Leuschner, Christoph,&Hauck, Markus.(2015).Carbon pools of semi-arid Picea crassifolia forests in the Qilian Mountains (north-eastern Tibetan Plateau).FOREST ECOLOGY AND MANAGEMENT,343.
MLA	Wagner, Bettina,et al."Carbon pools of semi-arid Picea crassifolia forests in the Qilian Mountains (north-eastern Tibetan Plateau)".FOREST ECOLOGY AND MANAGEMENT 343(2015).