Arid
DOI10.1016/j.geomorph.2008.05.011
Measurements and numerical simulations of the degree of activity and vegetation cover on parabolic dunes in north-eastern Brazil
Duran, O.1,6; Silva, M. V. N.2; Bezerra, L. J. C.3; Herrmann, H. J.4,5; Maia, L. P.3
通讯作者Duran, O.
来源期刊GEOMORPHOLOGY
ISSN0169-555X
EISSN1872-695X
出版年2008
卷号102期号:3-4页码:460-471
英文摘要

In this work we present measurements of vegetation cover over parabolic dunes with different degrees of activation along the north-eastern Brazilian coast. We extend the local values of the vegetation cover density to the whole dune by correlating measurements with the relative brightness index C of high resolution QuickBird panchromatic satellite images of the dune held. We then introduce the vegetation data into a continuous model for vegetated dunes, coupling sand erosion and vegetation growth, and perform simulations of the evolution of the morphology and vegetation cover of parabolic dunes. Finally, from the comparison of both, the measurements and the simulation results, we show that the model is able to predict the dune shape and the vegetation distribution of real parabolic dunes as result of the evolution of a blow-out. (c) 2008 Elsevier B.V. All rights reserved.


英文关键词Coastal morphology Vegetation cover Parabolic dunes Dune dynamics
类型Article
语种英语
国家Germany ; Brazil ; Switzerland ; Netherlands
收录类别SCI-E
WOS记录号WOS:000261565100014
WOS关键词SHEAR-STRESS ; WIND EROSION ; SAND TRANSPORT ; COASTAL DUNES ; DESERT ; FIELD ; LANDSCAPES ; ROUGHNESS ; MOBILITY ; SURFACES
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/2XILL650/157466
作者单位1.Univ Stuttgart, Inst Computat Phys, D-70569 Stuttgart, Germany;
2.Univ Fed Pernambuco, Dept Geos, BR-50670901 Recife, PE, Brazil;
3.Univ Fed Ceara, Dept Geol, BR-60455970 Fortaleza, Ceara, Brazil;
4.ETH Honggerberg, IFB, HIF E12, CH-8093 Zurich, Switzerland;
5.Univ Fed Ceara, Dept Fis, BR-60451970 Fortaleza, Ceara, Brazil;
6.Univ Twente, TS, NL-7500 AE Enschede, Netherlands
推荐引用方式
GB/T 7714
Duran, O.,Silva, M. V. N.,Bezerra, L. J. C.,et al. Measurements and numerical simulations of the degree of activity and vegetation cover on parabolic dunes in north-eastern Brazil[J],2008,102(3-4):460-471.
APA Duran, O.,Silva, M. V. N.,Bezerra, L. J. C.,Herrmann, H. J.,&Maia, L. P..(2008).Measurements and numerical simulations of the degree of activity and vegetation cover on parabolic dunes in north-eastern Brazil.GEOMORPHOLOGY,102(3-4),460-471.
MLA Duran, O.,et al."Measurements and numerical simulations of the degree of activity and vegetation cover on parabolic dunes in north-eastern Brazil".GEOMORPHOLOGY 102.3-4(2008):460-471.
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