DOI: 10.1016/j.gloplacha.2014.11.010
论文题名: Parabolic dunes and their transformations under environmental and climatic changes: Towards a conceptual framework for understanding and prediction
作者: Yan N. ; Baas A.C.W.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2015
卷: 124 起始页码: 123
结束页码: 148
语种: 英语
英文关键词: Aeolian
; Climatic change
; Dune transformation
; Eco-geomorphic response
; Parabolic dune
; Vegetation change
Scopus关键词: Climate change
; Environmental engineering
; Vegetation
; Aeolian
; Climatic changes
; Dune transformation
; Geomorphic response
; Parabolic dune
; Vegetation change
; Sustainable development
; anthropogenic effect
; climate change
; drought stress
; dune
; eolian deposit
; geomorphology
; human activity
; policy making
; precipitation (climatology)
; prediction
; sediment transport
; sustainability
; temperature effect
; transformation
英文摘要: The formation and evolution of parabolic aeolian dunes depend on vegetation, and as such are particularly sensitive to changes in environmental controls (e.g., temperature, precipitation, and wind regime) as well as to human disturbances (e.g., grazing, agriculture, and recreation). Parabolic dunes can develop from the stabilisation of highly mobile barchan dunes and transverse dunes as well as from blowouts, as a consequence of colonisation and establishment of vegetation when aeolian sand transport is reduced and/or when water stress is relieved (by increasing precipitation, for instance). Conversely, existing parabolic dunes can be activated and may be transformed into barchan dunes and/or transverse dunes when vegetation suffers environmental or anthropogenic stresses. Predicted increases in temperature and drought severity in various regions raise concerns that dune activation and transformations may intensify, and this intensification would have far-reaching implications for environmental, social, and economic sustainability. To date, a broad examination of the development of parabolic dunes and their related transformations across a variety of climate gradients has been absent. This paper reviews existing literature, compares data on the morphology and development of parabolic dunes in a comprehensive global inventory, and scrutinises the mechanisms of different dune transformations and the eco-geomorphic interactions involved. This knowledge is then integrated into a conceptual framework to facilitate understanding and prediction of potential aeolian dune transformations induced by changes in environmental controls and human activities. This conceptual framework can aid judicious land management policies for better adaptations to climatic changes. © 2014 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84949118778&doi=10.1016%2fj.gloplacha.2014.11.010&partnerID=40&md5=84b8f1669d2bf2cf9acfb7f4c2f8a53d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11575
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: Department of Geography, King's College London, United Kingdom
Recommended Citation:
Yan N.,Baas A.C.W.. Parabolic dunes and their transformations under environmental and climatic changes: Towards a conceptual framework for understanding and prediction[J]. Global and Planetary Change,2015-01-01,124.