干旱区生态环境知识资源中心(Arid): INDEX OF VULNERABILITY TO EROSION FOR A BASIN IN THE SAO FRANCISCO MESO-REGION PERNAMBUCANO, FROM THE RELATIONSHIP BETWEEN MORPHOGENESIS AND PEDOGENESIS

Arid

	INDEX OF VULNERABILITY TO EROSION FOR A BASIN IN THE SAO FRANCISCO MESO-REGION PERNAMBUCANO, FROM THE RELATIONSHIP BETWEEN MORPHOGENESIS AND PEDOGENESIS
	de Menezes, Jessica Bezerra; Bezerra de Araujo, Maria do Socorro; Galvincio, Josicleda Domiciano; de Sa Barretto Sampaio, Everardo Valadares; de Barros Correa, Antonio Carlos
通讯作者	de Menezes, JB
来源期刊	REVISTA BRASILEIRA DE GEOMORFOLOGIA
ISSN	1519-1540
EISSN	2236-5664
出版年	2007
卷号	8 期号:2 页码:45-56
英文摘要	In the semi-arid context of Northeastern Brazil superficial processes are ruled by the magnitude of pluvial inputs, their recurrence in time and space, and direct interaction with superficial formations peculiar to this morphogenetic domain as well as land use practices. In fact, at a micro-watershed scale pluvial erosion is the most representative type, and constitutes an environmental problem within the traditional agrarian spaces of the semi-arid Northeast. In the watershed of Mulungu creek, the social context displays the low human development level of its population, whereas the environmental context reflects the stress exerted by the former upon its physical support, in the shape of increased linear erosion, alluvial fan formation and channel siltation, outcropping of saline crusts and the low density of the native vegetation cover. The aim of this work was to determine an erosion vulnerability index for Mulungu creek watershed using the principles of Tricart's Ecodynamics as well as geographical information system and remote sensing techniques. In order to obtain an expedite image of landscape superficial structure and its dynamics, a climatic graph was created, and latter digital thematic maps of soils, landforms, geology, vegetation, slope gradient and a digital terrain model were overlaid. Following, vulnerability indexes were estimated based on the interaction amongst geological, geomorphological, pedological, vegetation, climate and land use data. From the analysis of those parameters a general morphodynamics index was obtained for the watershed, rendering a value of 2.0, which indicates that the study area is susceptible to morphogenesis, in fact quite close to a strong ecodynamic instability level.
英文关键词	surface processes vegetable cover soil classes geographical information system remote sensing
类型	Article
语种	葡萄牙语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000216925700005
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328898
作者单位	[de Menezes, Jessica Bezerra; Bezerra de Araujo, Maria do Socorro; Galvincio, Josicleda Domiciano; de Barros Correa, Antonio Carlos] Univ Fed Pernambuco, Dept Ciencias Geog, Recife, PE, Brazil; [de Sa Barretto Sampaio, Everardo Valadares] Univ Fed Pernambuco, Dept Energia Nucl, BR-50740540 Recife, PE, Brazil
推荐引用方式 GB/T 7714	de Menezes, Jessica Bezerra,Bezerra de Araujo, Maria do Socorro,Galvincio, Josicleda Domiciano,et al. INDEX OF VULNERABILITY TO EROSION FOR A BASIN IN THE SAO FRANCISCO MESO-REGION PERNAMBUCANO, FROM THE RELATIONSHIP BETWEEN MORPHOGENESIS AND PEDOGENESIS[J],2007,8(2):45-56.
APA	de Menezes, Jessica Bezerra,Bezerra de Araujo, Maria do Socorro,Galvincio, Josicleda Domiciano,de Sa Barretto Sampaio, Everardo Valadares,&de Barros Correa, Antonio Carlos.(2007).INDEX OF VULNERABILITY TO EROSION FOR A BASIN IN THE SAO FRANCISCO MESO-REGION PERNAMBUCANO, FROM THE RELATIONSHIP BETWEEN MORPHOGENESIS AND PEDOGENESIS.REVISTA BRASILEIRA DE GEOMORFOLOGIA,8(2),45-56.
MLA	de Menezes, Jessica Bezerra,et al."INDEX OF VULNERABILITY TO EROSION FOR A BASIN IN THE SAO FRANCISCO MESO-REGION PERNAMBUCANO, FROM THE RELATIONSHIP BETWEEN MORPHOGENESIS AND PEDOGENESIS".REVISTA BRASILEIRA DE GEOMORFOLOGIA 8.2(2007):45-56.