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Título: | Erosión y desertificación.-Impact of land-use change on soil degradation by establishment of terraces with subtropical orchards in sloping areas (Granada, SE Spain) |
Fecha de defensa / creación: | sep-2009 |
Materias relacionadas: | CDU::5 - Ciencias puras y naturales::55 - Geología. Meteorología |
Resumen: | ABSTRACT In the coast of Granada, an intensive irrigated agriculture based on subtropical crops has been established. These trees have been planted in highly sloped areas, by the construction of terraces. In this fragile Mediterranean agroecosystem, the removal of native spontaneous vegetation cover and substitution by orchards, increase the susceptibility to soil degradation and eventually brings up the destruction of these structures by rainfall events. To study this net change, we monitored the soil loss and runoff over a two-year period in the taluses of terraces with a mature mango (Mangifera indica L.) orchard. The studied treatments were bare soil (BS) and spontaneous vegetation (NSV), each twice replicated. The erosion plots were 4 m x 4 m in area and were located in the taluses of orchard terraces (65� slope). The average annual soil loss by erosion for BS and NSV was 2.5 and 0.3 Mg ha-1 yr-1, and for runoff 34.1 and 6.8 mm yr-1, respectively. Therefore, soil erosion and runoff from BS plot were 8- and 5-times higher than in NSV, showing the importance of plant covers in the taluses of terraces in reducing this impact. Thus, the removal of plant cover from the taluses under these conditions, represent a high risk of slump and collapse, causing serious environmental and economic problems for farmers of subtropical crops.etadata.jsp |
Autor/es principal/es: | Rodríguez Pleguezuelo, C.R. Durán Zuazo, V.H. Martín Peinado, F.J. Franco Tarifa, D. |
Facultad/Departamentos/Servicios: | Universidad de Murcia |
Forma parte de: | Congreso Internacional sobre desertificación |
URI: | http://hdl.handle.net/10201/97625 |
Tipo de documento: | info:eu-repo/semantics/other |
Número páginas / Extensión: | 4 |
Derechos: | info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 International |
Aparece en las colecciones: | Congreso Internacional sobre Desertificación. |
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Fichero | Descripción | Tamaño | Formato | |
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Impact of land-use change on soil degradation by establishment....pdf | 290,32 kB | Adobe PDF | Visualizar/Abrir |
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