Variations of carbon stock with forest types in subalpine region of southwestern China

doi:10.1016/j.foreco.2012.06.010

CORC > 中国农业科学院 > 农业环境与可持续发展研究所 > 旱作节水研究室

	Variations of carbon stock with forest types in subalpine region of southwestern China
	Zhang, Yuandong 1; Gu, Fengxue 2; Liu, Shirong 1; Liu, Yanchun 1; Li, Chao 3
刊名	FOREST ECOLOGY AND MANAGEMENT
	2013
卷号	300 页码:88-95
关键词	Carbon stock Soil carbon Carbon sequestration Forest restoration Biomass
ISSN号	0378-1127
DOI	10.1016/j.foreco.2012.06.010
通讯作者	Zhang, Yuandong
英文摘要	Subalpine forests in southwestern China were exploited extensively in the second half of the 20th century. Old growth forests (OGFs) dominated by firs had largely been replaced by spruce plantation forests (SPFs), spruce and birch mixed forests (SBMs), natural birch forests (NBFs), and fir and birch mixed forests (FBM). The main objectives of this study are to quantify the ecosystem carbon (C) stock in these five forest types and to estimate their C sequestration capacity. Sixty-nine stands were sampled across the Miyaluo forest region located in the subalpine zone of southwestern China. The C stocks in the tree-layer, under-story, herbs, mosses, forest floor, coarse woody debris (CWD) and soil were estimated. The mean total biomass in SPF, SBM, NBF, FBM, and OGF was 125.9, 131.2, 135.7, 191.7, and 651.1 t/ha, respectively. The OGF had the highest level of C stock. Total biomass and C density were significantly higher in FBM than those in SPF, SBM and NBF. FBM had a significantly higher mean annual increment (MAI) than all other types. Soil C accounted for a large proportion (68.4-76.5%) of the ecosystem C pools in SPF, SBM, NBF and FBM, but only 40.5% C was stored in the OGF's soils relative to 51.5% in the biomass. Of the C stock in the upper 0-80 cm soil, about 50% was stored in the upper 0-20 cm, and more than 74% in the upper 0-40 cm. Soil C stock in OGF, NBF and FBM was significantly higher than that in SPF and SBM. Soil disturbance during timber harvest, site preparation and tree planting explains less soil C stock in the SPF and SBM stands compared to other forest types. These results suggest natural mixed forest restoration can be a promising approach for increasing C sequestration capacity in the subalpine region. Also, reducing soil disturbance during forest management practices plays an important role in increasing the soil C stock. (c) 2012 Elsevier B.V. All rights reserved.
学科主题	Forestry ; FORESTRY
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000320425100011
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/19846]
专题	农业环境与可持续发展研究所_旱作节水研究室
作者单位	1.Chinese Acad Forestry, Inst Forest Ecol Environm & Protect, State Forestry Adm, Key Lab Forest Ecol & Environm, Beijing 100091, Peoples R China 2.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, MOA, Key Lab Dryland Agr, Beijing 100081, Peoples R China 3.Nat Resources Canada, Canadian Forest Serv, Canadian Wood Fibre Ctr, Edmonton, AB T6H 3S5, Canada
推荐引用方式 GB/T 7714	Zhang, Yuandong,Gu, Fengxue,Liu, Shirong,et al. Variations of carbon stock with forest types in subalpine region of southwestern China[J]. FOREST ECOLOGY AND MANAGEMENT,2013,300:88-95.
APA	Zhang, Yuandong,Gu, Fengxue,Liu, Shirong,Liu, Yanchun,&Li, Chao.(2013).Variations of carbon stock with forest types in subalpine region of southwestern China.FOREST ECOLOGY AND MANAGEMENT,300,88-95.
MLA	Zhang, Yuandong,et al."Variations of carbon stock with forest types in subalpine region of southwestern China".FOREST ECOLOGY AND MANAGEMENT 300(2013):88-95.