Arid
DOI10.1016/j.geomorph.2005.03.011
Biogeomorphic model of dunefield activation and stabilization on the northern Great Plains
Hugenholtz, CH; Wolfe, SA
通讯作者Hugenholtz, CH
来源期刊GEOMORPHOLOGY
ISSN0169-555X
EISSN1872-695X
出版年2005
卷号70期号:1-2页码:53-70
英文摘要

A conceptual model is proposed for the activity of sand dune systems on the northern Great Plains that incorporates vegetation growth theory and geomorphic system theory. Dunefield activity is modeled as a cyclic phenomenon, alternating between active and stable states, with the latter as the system state attractor. The model is divided into two constituent parts: an activation model and a stabilization model. The activation model is qualitative and describes the transition from stable to active dunes as the result of a climatic perturbation such as drought that decreases vegetation cover. The intensity and duration of the climatic perturbation determines the rate of decline of vegetation cover. The stabilization model is quantitative and describes the transition from active to stable dunes using a logistic model of vegetation growth. Small perturbations during stabilization can prolong the duration of recovery, enabling dunes to remain active well after the initial perturbation. Despite the geographic focus of this study, the model appears applicable to a variety of environments where dune activity is limited, in part, by vegetation cover. (c) 2005 Elsevier B.V All rights reserved.


英文关键词continental dunes dune activity vegetation cover Northern Great Plains Canada
类型Article
语种英语
国家Canada
收录类别SCI-E
WOS记录号WOS:000232013100005
WOS关键词HOLOCENE EOLIAN ACTIVITY ; SOUTHWESTERN UNITED-STATES ; GENERAL-CIRCULATION MODEL ; SAND-DUNE ACTIVITY ; PALEOCLIMATIC SIGNIFICANCE ; CANADIAN PRAIRIES ; LOGISTIC GROWTH ; CLIMATE-CHANGE ; SOUTHERN PERU ; MOJAVE DESERT
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向Physical Geography ; Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/149119
作者单位(1)Univ Calgary, Dept Geog, Calgary, AB T2N 1N4, Canada;(2)Geol Survey Canada, Terrain Sci Div, Ottawa, ON K1A 0E8, Canada
推荐引用方式
GB/T 7714
Hugenholtz, CH,Wolfe, SA. Biogeomorphic model of dunefield activation and stabilization on the northern Great Plains[J],2005,70(1-2):53-70.
APA Hugenholtz, CH,&Wolfe, SA.(2005).Biogeomorphic model of dunefield activation and stabilization on the northern Great Plains.GEOMORPHOLOGY,70(1-2),53-70.
MLA Hugenholtz, CH,et al."Biogeomorphic model of dunefield activation and stabilization on the northern Great Plains".GEOMORPHOLOGY 70.1-2(2005):53-70.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Hugenholtz, CH]的文章
[Wolfe, SA]的文章
百度学术
百度学术中相似的文章
[Hugenholtz, CH]的文章
[Wolfe, SA]的文章
必应学术
必应学术中相似的文章
[Hugenholtz, CH]的文章
[Wolfe, SA]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。