Contrasted Impact of Land Abandonment on Soil Erosion in Mediterranean Agriculture Fields  

作　　者：Jesus RODRIGO-COMINO Carlos MARTINEZ-HERNANDEZ Thomas ISERLOH Artemi CERDA 

机构地区：[1]Instituto de Geomorfología y Suelos, Department of Geography, University of Málaga, Mdlaga 29071 (Spain) [2]Department of Physical Geography, Trier University, Trier 54286 (Germany) [3]Department of Geography, University of Murcia, Murcia 30001 (Spain) [4]Soil Erosion and Degradation Research Group, Department of Geography, University of Valencia, Valencia 46010 (Spain)

出　　处：《Pedosphere》2018年第4期617-631,共15页土壤圈（英文版）

基　　金：supported by the RECARE Project (No. 603498) from the European Union Seventh Framework Programme (No. FP7/2007-2013)

摘　　要：Abandonment of agricultural land results in on- and off-site consequences for the ecosystem. In this study, 105 rainfall simulations were carried out in agriculture lands of the Mediterranean belt in Spain （vineyards in Malaga, almond orchards in Murcia, and orange and olive orchards in Valencia） and in paired abandoned lands to assess the impact of land abandonment on soil and water losses. After abandonment, soil detachment decreased drastically in the olive and orange orchards, while vineyards did not show any difference and almond orchards registered higher erosion rates after the abandonment. Terraced orchards of oranges and olives recovered a dense vegetation cover after the abandonment, while the sloping terrain of almond orchards and vineyards enhanced the development of crusts and rills and a negligible vegetation cover resulted in high erosion rates. The contrasted responses to land abandonment in Mediterranean agricultural lands suggest that land abandonment should be programmed and managed with soil erosion control strategies for some years to avoid land degradation.Abandonment of agricultural land results in on-and off-site consequences for the ecosystem. In this study, 105 rainfall simulations were carried out in agriculture lands of the Mediterranean belt in Spain(vineyards in Málaga, almond orchards in Murcia, and orange and olive orchards in Valencia) and in paired abandoned lands to assess the impact of land abandonment on soil and water losses. After abandonment, soil detachment decreased drastically in the olive and orange orchards, while vineyards did not show any difference and almond orchards registered higher erosion rates after the abandonment. Terraced orchards of oranges and olives recovered a dense vegetation cover after the abandonment, while the sloping terrain of almond orchards and vineyards enhanced the development of crusts and rills and a negligible vegetation cover resulted in high erosion rates. The contrasted responses to land abandonment in Mediterranean agricultural lands suggest that land abandonment should be programmed and managed with soil erosion control strategies for some years to avoid land degradation.

关 键 词：erosion rate Mediterranean crop rainfall simulation TERRACE vegetation cover 

分 类 号：S157.1[农业科学—土壤学] F321.1[农业科学—农业基础科学]