DOI: 10.1111/gcb.13288
论文题名: Ethiopian agriculture has greater potential for carbon sequestration than previously estimated
作者: Rimhanen K. ; Ketoja E. ; Yli-Halla M. ; Kahiluoto H.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2016
卷: 22, 期: 11 起始页码: 3739
结束页码: 3749
语种: 英语
英文关键词: agricultural practices
; carbon stock
; climate change
; East-Africa
; mitigation
; soil
Scopus关键词: agricultural practice
; agricultural soil
; agroforestry
; carbon sequestration
; climate change
; grazing
; soil carbon
; soil organic matter
; terracing
; Ethiopia
; carbon
; soil
; agriculture
; carbon sequestration
; soil
; theoretical model
; Agriculture
; Carbon
; Carbon Sequestration
; Models, Theoretical
; Soil
英文摘要: More than half of the cultivation-induced carbon loss from agricultural soils could be restored through improved management. To incentivise carbon sequestration, the potential of improved practices needs to be verified. To date, there is sparse empirical evidence of carbon sequestration through improved practices in East-Africa. Here, we show that agroforestry and restrained grazing had a greater stock of soil carbon than their bordering pair-matched controls, but the difference was less obvious with terracing. The controls were treeless cultivated fields for agroforestry, on slopes not terraced for terracing, and permanent pasture for restrained grazing, representing traditionally managed agricultural practices dominant in the case regions. The gain by the improved management depended on the carbon stocks in the control plots. Agroforestry for 6–20 years led to 11.4 Mg ha−1 and restrained grazing for 6–17 years to 9.6 Mg ha−1 greater median soil carbon stock compared with the traditional management. The empirical estimates are higher than previous process-model-based estimates and indicate that Ethiopian agriculture has greater potential to sequester carbon in soil than previously estimated. © 2016 The Authors. Global Change Biology Published by John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61266
Appears in Collections: 影响、适应和脆弱性
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作者单位: Natural Resources Institute Finland, Latokartanonkaari 9, Helsinki, Finland; Natural Resources Institute Finland, Jokioinen, Finland; University of Helsinki, Latokartanonkaari 11, PO Box 27, Helsinki, Finland; Natural Resources Institute Finland, Jokiniemenkuja 1, Vantaa, Finland
Recommended Citation:
Rimhanen K.,Ketoja E.,Yli-Halla M.,et al. Ethiopian agriculture has greater potential for carbon sequestration than previously estimated[J]. Global Change Biology,2016-01-01,22(11)