DOI: 10.1007/s10584-016-1684-3
Scopus记录号: 2-s2.0-84964658568
论文题名: Adaptation and development trade-offs: fluvial sediment deposition and the sustainability of rice-cropping in An Giang Province, Mekong Delta
作者: Chapman A.D. ; Darby S.E. ; Hồng H.M. ; Tompkins E.L. ; Van T.P.D.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2016
卷: 137, 期: 2018-03-04 起始页码: 593
结束页码: 608
语种: 英语
英文关键词: Adaptation
; Mekong Delta
; Rice
; Sediment
; Trade-off
Scopus关键词: Agriculture
; Deposition
; Ecology
; Economic and social effects
; Floods
; Sediments
; Surveys
; Sustainable development
; Adaptation
; Agricultural development
; Agricultural practices
; Mekong Delta
; Rice
; Short-term adaptation
; Social-ecological systems
; Trade off
; Suspended sediments
; adaptive management
; agricultural development
; alluvial deposit
; alternative agriculture
; cropping practice
; depositional sequence
; dike
; environmental change
; fertilizer application
; floodplain
; rice
; suspended sediment
; trade-off
; An Giang
; Mekong Delta
; Viet Nam
英文摘要: Deltas around the globe are facing a multitude of intensifying environmental change and development-linked pressures. One key concern is the reduction in the quantity of suspended sediment reaching and building floodplains. Sediment deposition provides multiple services to deltaic social-ecological systems, in particular, countering the subsidence of the delta-body, and providing plentiful nutrients. Experiencing particularly rapid change is the Vietnamese Mekong Delta (VMD). In An Giang Province an increasing number of high dyke rings, which exclude the flood and facilitate triple rice-cropping, simultaneously prevent much of the sediment load from reaching the floodplain. This paper explores the trade-offs implicit in the decision to shift from (i) doublecropping (higher sediment deposition) to (ii) triple cropping (lower sediment deposition) by asking: what is the impact of the shift on VMD farmers? Is it sustainable? And what is the significance of the associated sediment exclusion? A novel survey of An Giang rice farmers was conducted, investigating key agricultural practices, and uniquely, the farmers’ estimates of annual sediment deposition depth. The survey elicits some key changes under the adapted system (ii), particularly, unsustainable trajectories in the yield to fertiliser ratio which penalise land-poor farmers. Furthermore, the value (to farmers) of the sediment contribution to agricultural fertilisation which is lost due to triple-cropping is estimated at USD 15 (±5) million annually. We argue that our growing understanding of the importance of sediment in the deltaic social-ecological system may be revealing an emergent risk; arising from conflicting long and short-term adaptation and agricultural development objectives. © 2016, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/84246
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Geography & Environment, University of Southampton, Southampton, United Kingdom; Research Institute for Climate Change, Can Tho University, Can Tho, Viet Nam; College of Environment and Natural Resources, Can Tho University, Can Tho, Viet Nam
Recommended Citation:
Chapman A.D.,Darby S.E.,Hồng H.M.,et al. Adaptation and development trade-offs: fluvial sediment deposition and the sustainability of rice-cropping in An Giang Province, Mekong Delta[J]. Climatic Change,2016-01-01,137(2018-03-04)