Biblioteca Digital do Instituto Politécnico de Bragança   Instituto Politécnico de Bragança

Biblioteca Digital do IPB >
Escola Superior Agrária >
Ambiente e Recursos Naturais >
ARN - Resumos em Proceedings Não Indexados ao ISI >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/5003

Título: Hydrological properties of soils in scrublands of Montesinho Natural Park, NE Portugal: a map-based approach
Autor: Figueiredo, Tomás de
Fonseca, Felícia
Bompastor, Alice
Andrade, José Alexandre
Palavras-chave: Shrubs
Soil hydrological properties
Mountain areas
Issue Date: 2009
Editora: Instituto Politécnico de Tomar
Citação: Figueiredo, Tomás de; Fonseca, Felícia; Bompastor, Alice; Andrade, José (2009) - Hydrological properties of soils in scrublands of Montesinho Natural Park, NE Portugal: a map-based approach. In EcoHCC'09, International Conference on Ecohydrology and Climate Change. Tomar. ISBN 978-972-9473-45-6
Resumo: Shrubs cover about one third of Montesinho Natural Park (PNM), a 750km2 belt in NE Portugal, which is part of the Portuguese network of protected areas since 1978. The Park hosts very important natural values and striking examples of balanced land use in humanized landscapes. Scrublands are present dominantly in marginal areas on steep slopes, scrublands are indeed a stable element in PNM landscapes. Main types of scrublands found in Montesinho are “Urzais” (Erica australis as representative species, 68% of shrub area), “Giestais” (Cytisus multiflorus, 11%), and “Estevais” (Cistus ladanifer, 21%). Scrublands are thought to play an important role in these mountain catchments due to their area, spatial distribution, and hydrological response to precipitation. As part of a wider study, previous work by the same authors, focused on PNM shrubs, showed the runoff generation potential of these areas, assessed on similar soil, under simulated rainfall at micro-scale. Although not significantly different, shrub types can be ranked according to hydrological response. Soil data are required for runoff generation estimates in the wide range of soil types found in PNM scrublands. The aim of this presentation is to address soils of scrublands in PNM, describing properties and discussing their relevance to hydrological response of these surfaces. Basic data comprises soil and vegetation maps of PNM, on a GIS specifically designed for the area, together with the Soil Map of NE Portugal profile descriptions specific data base. Soils were classed according to permeability and assigned to SCS soil hydrological classification, considering data on soil properties as depth to impervious layer, texture, C content and stoniness. Commonly referenced pedotransfer functions ere also applied. Soils in PNM scrublands are dominantly incipient shallow (Leptosols, 96% of the area), with a high C content in the surface horizon (Umbric secondary units in 66% of the area), and high rock fragment content (mean rock fragment content 20-25%). In relative terms, “Giestais” cover a larger area of developed soils (Luvisols and Alisols, 9%) and a smaller one of high C content soils (24%). “Urzais” are dominant in areas with granitic parent material. Soil characteristics and components help explaining the relative importance and spatial distribution of soil hydrologic classes in PNM. In half of the area soils are moderately permeable, in less than 1/5 permeability is high, and it is low in about 1/3 of PNM scrublands area. Sharp differences are found between shrub types, as “Urzais” have the highest areal proportion of highly permeable soils (26%) and “Giestais” the highest of soils with low permeability (74%). Results obtained are intended to help improving hydrologic models performance or hydrological data interpretations, by providing spatially distributed soil data estimates.
Arbitragem científica: yes
URI: http://hdl.handle.net/10198/5003
ISBN: 978-972-9473-45-6
Appears in Collections:ARN - Resumos em Proceedings Não Indexados ao ISI

Files in This Item:

File Description SizeFormat
ecohydroTomar2009 abstract TFetal_PDF.pdf216,35 kBAdobe PDFView/Open
Statistics
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 


  © Instituto Politécnico de Bragança - Biblioteca Digital - Feedback - Statistics
  Estamos no RCAAP Governo Português separator Ministério da Educação e Ciência   Fundação para a Ciência e a Tecnologia

Financiado por:

POS_C UE