Application of GIS tools for Leca River Basin soil erosion (Northern Portugal) evaluation

被引：0

作者：

Taveira-Pinto, F. ^{[1
]}

Petan, S. ^{[2
]}

Mikos, M. ^{[2
]}

Pais-Barbosa, J. ^{[3
]}

机构：

[1] Univ Porto, Fac Engn, Dept Civil Engn, Hydraul Water Resources & Environm Div, Rua Campo Alegre 823, P-4100 Oporto, Portugal

[2] Univ Ljubljana, Fac Civil & Geodet Engn, Chair Hydrol & Hydraul Engn, Ljubljana, Slovenia

[3] Univ Porto, Fac Sci, Geospatial Sci Res Ctr, Porto, Portugal

来源：

RIVER BASIN MANAGEMENT V | 2009年 / 124卷

关键词：

RUSLE; modelling; GIS; soil erosion; basin; MODEL; RUSLE;

D O I：

10.2495/RM090251

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Applying GIS-based RUSLE methodology, the main goal of the present study is to forecast soil loss and identify areas of high erosion potential in the Leca River Basin, located in Northern Portugal. The rasterlayered model was structured in ArcGIS for two different scales: grid cell sizes of 10 and 30 meters. The average annual soil loss in Leca River Basin was estimated at 33.2 t/ha, which produces a sediment yield of 52 000 m(3)/year. It was also estimated that 31% of the basin could be classified as areas of moderate erosion risk with annual soil loss of between 12 and 50 t/ha, 18% classified as areas of severe erosion risk and 51% as areas of low erosion risk.

引用

页码：267 / +

页数：3

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