The effects of land uses on soil erosion in Spain: A review

被引:572
作者
Garcia-Ruiz, Jose M. [1 ]
机构
[1] CSIC, Inst Pirenaico Ecol, E-50080 Zaragoza, Spain
关键词
Water erosion; Land-use abandonment; Rain fed cereals; Vineyards; Fruit-tree orchards; Spain; EPHEMERAL GULLY EROSION; EBRO RIVER-BASIN; SEMIARID ENVIRONMENT; AGRICULTURAL LAND; SPATIAL-PATTERNS; ABANDONED FIELDS; NUTRIENT LOSSES; SEDIMENT YIELD; SOUTHERN SPAIN; WATER-BALANCE;
D O I
10.1016/j.catena.2010.01.001
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Soil erosion is a key factor in Mediterranean environments, and is not only closely related to geoecological factors (lithology, topography, and climatology) but also to land-use and plant cover changes. The long history of human activity in Spain explains the development of erosion landscapes and sedimentary structures (recent alluvial plains, alluvial fans, deltas and flat valleys infilled of sediment). For example, the expansion of cereal agriculture and transhumant livestock between the 16th and 19th centuries resulted in episodes of extensive soil erosion. During the 20th century farmland abandonment prevailed in mountain areas, resulting in a reduction of soil erosion due to vegetation recolonization whereas sheet-wash erosion, piping and gullying affected abandoned fields in semi-arid environments. The EU Agrarian Policy and the strengthening of national and international markets encouraged the expansion of almond and olive orchards into marginal lands, including steep, stony hill slopes. Vineyards also expanded to steep slopes, sometimes on new unstable bench terraces, thus leading to increased soil erosion particularly during intense rainstorms. The expansion of irrigated areas, partially on salty and poorly structured soils, resulted in piping development and salinization of effluents and the fluvial network. The trend towards larger fields and farms in both dry farming and irrigated systems has resulted in a relaxation of soil conservation practices. (C) 2010 Elsevier B.V. All rights reserved.
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页码:1 / 11
页数:11
相关论文
共 102 条
[1]  
[Anonymous], 1991, MONTES ESPANA HIST
[2]  
[Anonymous], 2001, The Nature of Mediterranean Europe, An Ecological History
[3]  
[Anonymous], CUATERNARIO GEOMORFO
[4]  
[Anonymous], 1997, ACCION HUMANA DESERT
[5]  
[Anonymous], 1988, CUAD INVESTIG GEOGR, DOI DOI 10.18172/CIG.966
[6]   Factors affecting runoff and erosion under simulated rainfall in Mediterranean vineyards [J].
Arnaez, J. ;
Lasanta, T. ;
Ruiz-Flano, P. ;
Ortigosa, L. .
SOIL & TILLAGE RESEARCH, 2007, 93 (02) :324-334
[7]  
Battany MC, 2000, HYDROL PROCESS, V14, P1289, DOI 10.1002/(SICI)1099-1085(200005)14:7<1289::AID-HYP43>3.0.CO
[8]  
2-R
[9]  
Beguería S, 2003, AMBIO, V32, P283, DOI 10.1639/0044-7447(2003)032[0283:ATEOCO]2.0.CO
[10]  
2