Aboveground carbon stock, allocation and sequestration potential during vegetation recovery in the karst region of southwestern China: A case study at a watershed scale

doi:10.1016/j.agee.2016.10.003

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	Aboveground carbon stock, allocation and sequestration potential during vegetation recovery in the karst region of southwestern China: A case study at a watershed scale
	Liu, Changcheng ; Liu, Yuguo 2; Guo, Ke 7; Wang, Shijie 1,4; Liu, Huiming 3; Zhao, Haiwei 7; Qiao, Xianguo 7; Hou, Dongjie 7; Li, Shaobin 6
刊名	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
	2016
卷号	235
关键词	Aboveground carbon density Carbon sequestration potential Karst ecosystem Secondary vegetation succession Species composition
ISSN号	0167-8809
DOI	10.1016/j.agee.2016.10.003
文献子类	Article
英文摘要	Karst landscape in southwestern China is one of the most typical landscapes developed on carbonate bedrock and has the largest area in the world. Carbon sequestration potentials during secondary karst vegetation recovery remain uncertain. Based on the vegetation map and 87 sampling plots at five stages of natural vegetation succession, this study estimated aboveground (AG) vegetation carbon stocks and dynamics at a watershed scale. AG carbon density of grasslands, shrublands, shrub forests, secondary forests and primary forests was 1.70,4.15, 22.3, 703, 142.2 Mg ha(-1), respectively. The ten most important species stored 71.6-96.1% of total AG carbon stock, indicating that carbon pool in karst vegetation was determined by a few dominant species. Main contributors to AG carbon stock shifted from individuals in small diameter classes in shrublands to individuals in large diameter classes in primary forests, indicating that carbon increases in the early vegetation succession resulted from high recruitment of woody plants, while carbon accumulations in the later forests were mainly due to tree growth. The long time required for secondary forests to recover carbon density to the level of primary forests could be explained by the slow speed of large evergreen trees reaching a high level of dominance during secondary succession on the harsh habitats. The total AG carbon stock of the studied watershed (7.50 x 10(3) ha) was 85.9 x 10(3) Mg, of which paddy fields, dry lands, grasslands, shrublands, shrub forests and secondary forests accounted for 22.6%, 3.49%, 0.34%, 5.97%,12.3% and 55.3%, respectively. The AG carbon stock in this watershed would increase by 92.5% in 50-100 years and by 4.40 times in 140-200 years if the degraded vegetation types could continue to develop into mature forests. Although carbon density of karst forests was significantly lower than that of the forests on non-karst habitats in the same latitudinal zone, the degraded karst vegetation showed a great carbon sequestration potential due to the large distribution area in southwestern China. (C) 2016 Elsevier B.V. All rights reserved.
学科主题	Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
电子版国际标准刊号	1873-2305
出版地	AMSTERDAM
WOS关键词	TROPICAL SECONDARY FORESTS ; ROCKY-DESERTIFICATION ; ALLOMETRIC EQUATIONS ; SPECIES COMPOSITION ; TEMPORAL EVOLUTION ; GUIZHOU PROVINCE ; TREE BIOMASS ; STORAGE ; SINK ; ACCUMULATION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000389296700009
资助机构	National Key Basic Research Program of ChinaNational Basic Research Program of China [2013CB956701] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41373081, 31500583] ; 'Strategic Priority Research Program' of the Chinese Academy of SciencesChinese Academy of Sciences [XDA05070400] ; Fundamental Research Funds for the Central Non-profit Research Institution of CAF [CAFYBB2014ZD006, CAFYBB2016QB020]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/24487]
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Forestry, Inst Desertificat Studies, Beijing 100091, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Chinese Acad Sci, Puding Karst Ecosyst Res Stn, Puding 562101, Peoples R China 4.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China 5.Forestry Bur Xingren Cty, Xingren 562300, Guizhou Provinc, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.Minist Environm Protect China, Satellite Environm Ctr, Beijing 100094, Peoples R China
推荐引用方式 GB/T 7714	Liu, Changcheng,Liu, Yuguo,Guo, Ke,et al. Aboveground carbon stock, allocation and sequestration potential during vegetation recovery in the karst region of southwestern China: A case study at a watershed scale[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2016,235.
APA	Liu, Changcheng.,Liu, Yuguo.,Guo, Ke.,Wang, Shijie.,Liu, Huiming.,...&Li, Shaobin.(2016).Aboveground carbon stock, allocation and sequestration potential during vegetation recovery in the karst region of southwestern China: A case study at a watershed scale.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,235.
MLA	Liu, Changcheng,et al."Aboveground carbon stock, allocation and sequestration potential during vegetation recovery in the karst region of southwestern China: A case study at a watershed scale".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 235(2016).