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Soil erosion under different vegetation covers in the Venezuelan Andes

Author

Listed:
  • Luz Amelia Sánchez

    (Universidad de Los Andes)

  • Michele Ataroff

    (Universidad de Los Andes)

  • Roberto López

    (Universidad de Los Andes)

Abstract

This comparative study of soil erosion considered different environments in an ecological unit of the Venezuelan Andes. The soils belong to an association of typic palehumults and humic dystrudepts. Soil losses were quantified by using erosion plots in areas covered by four types of vegetation, including both natural and cultivated environments. The highest soil erosion rate evaluated corresponded to horticultural crops in rotation: reaching a value of 22 Mg ha−1 per year. For apple tree (Malus sylvestris Miller) plots, soil losses reached values of 1.96 Mg ha−1 per year. Losses from pasture (Pennisetum clandestinum Hochst. ex Chiov.) plots, without livestock grazing, were as high as 1.11 Mg ha−1 during the second year of the experiment. The highest soil losses generated from plots under natural forest were equal to 0.54 Mg ha−1 per year. Environmental factors such as total and effective rainfall, runoff, and some soil characteristics as those related to soil losses by water erosion were evaluated. The type of management applied to each site under different land use type and the absence of conservation practices explain, to a large extent, the erosive processes and mechanisms.

Suggested Citation

  • Luz Amelia Sánchez & Michele Ataroff & Roberto López, 2002. "Soil erosion under different vegetation covers in the Venezuelan Andes," Environment Systems and Decisions, Springer, vol. 22(2), pages 161-172, June.
    • Handle: RePEc:spr:envsyd:v:22:y:2002:i:2:d:10.1023_a:1015389918416
    DOI: 10.1023/A:1015389918416
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    Cited by:

    1. Anton, Strokov & Irina, Poleshkina, 2016. "Экономическая Оценка Экосистемных Услуг В Тавушской Области Республики Армения," Agricultural and Resource Economics: International Scientific E-Journal, Agricultural and Resource Economics: International Scientific E-Journal, vol. 2(1), March.
    2. V.H. Durán Zuazo & J.R. Francia Martínez & A. Martínez Raya, 2004. "Impact of Vegetative Cover on Runoff and Soil Erosion at Hillslope Scale in Lanjaron, Spain," Environment Systems and Decisions, Springer, vol. 24(1), pages 39-48, March.

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