DOI: 10.1016/j.foreco.2016.04.009
Scopus记录号: 2-s2.0-84962860043
论文题名: Land-use change impact on time-averaged carbon balances: Rubber expansion and reforestation in a biosphere reserve, South-West China
作者: Yang X. ; Blagodatsky S. ; Lippe M. ; Liu F. ; Hammond J. ; Xu J. ; Cadisch G.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 372 起始页码: 149
结束页码: 163
语种: 英语
英文关键词: Carbon sequestration
; Mosaic agricultural landscape
; Rapid Carbon Stock Appraisal
; Rubber plantations
; Time-averaged carbon stocks
Scopus关键词: Agriculture
; Biospherics
; Crops
; Deforestation
; Forestry
; Geographic information systems
; Organic carbon
; Reforestation
; Remote sensing
; Rubber
; Rubber plantations
; Sea level
; Sensitivity analysis
; Time series analysis
; Agricultural landscapes
; Carbon sequestration
; Carbon sequestration potential
; Carbon stocks
; Commercial plantation
; Land use and land cover
; Landscape assessments
; Remote sensing and GIS
; Land use
; belowground biomass
; biogeochemical cycle
; carbon flux
; carbon sequestration
; evergreen tree
; grassland
; land use change
; organic carbon
; plantation
; range expansion
; reforestation
; remote sensing
; rubber
; zoning
; China
; Naban River
; Xishuangbanna
; Yunnan
; Hevea brasiliensis
英文摘要: The expansion of rubber plantations (Hevea brasiliensis Müll. 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 (Cta) 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 Cta calculations due to large uncertainties unrelated to land use change. The Cta 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 Cta of natural forest (156-185 Mg C ha-1). Sensitivity analysis of Cta 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. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64915
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Institute of Agricultural Sciences in the Tropics (Hans-Ruthenberg-Institute), Garbenstrasse 13, Stuttgart, Germany; Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China; World Agroforestry Centre (ICRAF), China and East Asia Office c.o. Kunming Institute of Botany, Heilongtan, Lanhei Road No. 132, Kunming, China; Institute of Physicochemical and Biological Problems in Soil Science, Russian Academy of Sciences, Pushchino, Russian Federation; Institute of Crop Science, Department of Biobased Products and Energy Crops, Früwirthstr. 23, Stuttgart, Germany; Bureau of Naban Watershed National Nature Reserve, Yuanlin alley 19#, Jinghong, China; World Agroforestry Centre (ICRAF), Nairobi, Kenya; School of the Environment, Natural Resources and Geography, Bangor University, Bangor, Gwynedd, United Kingdom
Recommended Citation:
Yang X.,Blagodatsky S.,Lippe M.,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,2016-01-01,372