Land-use change impact on time-averaged carbon balances: Rubber expansion and reforestation in a biosphere reserve, South-West China

doi:10.1016/j.foreco.2016.04.009

	Land-use change impact on time-averaged carbon balances: Rubber expansion and reforestation in a biosphere reserve, South-West China
	Yang, Xueqing1,2,3 ; Blagodatsky, Sergey 1,4; Lippe, Melvin 1,5; Liu, Feng 6; Hammond, James 7,8; Xu, Jianchu3 ; Cadisch, Georg 1
	2016-07-15
发表期刊	FOREST ECOLOGY AND MANAGEMENT
卷号	372 页码:149-163
摘要	The expansion of rubber plantations (Hevea brasiliensis mall. Arg) is a major driving force for deforestation and forest degradation in mountainous South-East Asia. In China, the unclear distinction between natural forest and commercial plantations has permitted the expansion of rubber into protected forest areas of nature reserves. However, the impact of such land-use changes on landscape carbon balances within nature reserves has rarely been investigated. We selected the Naban River Watershed National Nature Reserve (NRWNNR) in Xishuangbanna, China as a case study area and evaluated carbon stocks using the Rapid Carbon Stock Appraisal (RaCSA) method based on tree, plot, land use and landscape assessments, integrating field sampling with remote sensing and GIS technology. Six dominant land use systems were surveyed: lowland forest (<800 m above sea level), highland forest (>800 m a.s.l.), lowland rubber, highland rubber, bush and grassland and agricultural crops. Land use type-specific time-averaged carbon stocks (C-ta) were calculated based on total above ground biomass (AGB). Soil organic carbon (surface 30 cm) and below ground biomass were measured, but not included in C-ta calculations due to large uncertainties unrelated to land use change. The C-ta of lowland and highland rubber plantations were 58 Mg C ha(-1) and 28 Mg C ha(-1) respectively, showing larger carbon sequestration potential than nonforest land use types (agricultural crops, bush and grassland) but much lower than C-ta of natural forest (156-185 Mg C ha(-1)). Sensitivity analysis of C-ta variability showed that forest C stocks have the largest influence on landscape carbon balance. Time series analysis of land-use and land-cover maps (1989, 2007, 2012) demonstrated that during 23 years, the whole landscape of the nature reserve (26,574 ha) gained 0.644 Tg C. Despite rubber expansion, biosphere zoning strategy (i.e. experimental, buffer, core zones), and reforestation activities conducted in NRWNNR were able to enhance the carbon stocks. (C) 2016 Elsevier B.V. All rights reserved.
关键词	Rubber Plantations Rapid Carbon Stock Appraisal Time-averaged Carbon Stocks Mosaic Agricultural Landscape Carbon Sequestration
DOI	10.1016/j.foreco.2016.04.009
收录类别	SCI
语种	英语
WOS记录号	WOS:000376802600017
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/26257
专题	资源植物与生物技术所级重点实验室
作者单位	1.Hans Ruthenberg Inst, Inst Agr Sci Trop, Garbenstr 13, D-70599 Stuttgart, Germany 2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Kunming 650201, Peoples R China 3.Kunming Inst Bot, China & East Asia Off Co, World Agroforestry Ctr ICRAF, Lanhei Rd 132, Kunming 650201, Peoples R China 4.Russian Acad Sci, Inst Physicochem & Biol Problems Soil Sci, Pushchino 142290, Russia 5.Inst Crop Sci, Dept Biobased Prod & Energy Crops, Fruwirthstr 23, D-70593 Stuttgart, Germany 6.Bur Naban Watershed Natl Nat Reserve, Yuanlin alley 19, Jinghong 666100, Peoples R China 7.World Agroforestry Ctr ICRAF, Nairobi 00100, Kenya 8.Bangor Univ, Sch Environm Nat Resources & Geog, Bangor LL57 2UW, Gwynedd, Wales
推荐引用方式 GB/T 7714	Yang, Xueqing,Blagodatsky, Sergey,Lippe, Melvin,et al. Land-use change impact on time-averaged carbon balances: Rubber expansion and reforestation in a biosphere reserve, South-West China[J]. FOREST ECOLOGY AND MANAGEMENT,2016,372:149-163.
APA	Yang, Xueqing.,Blagodatsky, Sergey.,Lippe, Melvin.,Liu, Feng.,Hammond, James.,...&Cadisch, Georg.(2016).Land-use change impact on time-averaged carbon balances: Rubber expansion and reforestation in a biosphere reserve, South-West China.FOREST ECOLOGY AND MANAGEMENT,372,149-163.
MLA	Yang, Xueqing,et al."Land-use change impact on time-averaged carbon balances: Rubber expansion and reforestation in a biosphere reserve, South-West China".FOREST ECOLOGY AND MANAGEMENT 372(2016):149-163.

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