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首页> 外文期刊>The Science of the Total Environment >Short-term effects of prescribed burning in Mediterranean pine plantations on surface runoff, soil erosion and water quality of runoff
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Short-term effects of prescribed burning in Mediterranean pine plantations on surface runoff, soil erosion and water quality of runoff

机译:地中海松人工林规定燃烧对地表径流,土壤侵蚀和径流水质的短期影响

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摘要

Fires are a complex phenomenon that may generate a chain of responses and processes that affect each part of the ecosystem. Thus, it is important to understand the magnitude of the impacts of fire on soil properties and the response of plants to this disturbance. For the moment, few studies have examined the effects of prescribed fire on large plots in afforested pine plantations in Mediterranean ecosystems. To fill this gap, the effects of a prescribed fire on runoff, soil erosion, and water quality for approximately one year after burning have been evaluated in pine plantations in south-eastern Spain. We constructed six erosion plots in the control area and six erosion plots in the burned area that were 4 m long and 2 m wide, immediately after the prescribed fire. Runoff, soil erosion and runoff water quality were studied after each rainy event in all plots. Our results reveal that prescribed fire did not significantly affect runoff and soil erosion when low intensity precipitations occur at pine plantations. In relation to water quality, water turbidity, salinity, pH, organic matter content and ionic substances concentrations increased immediately after prescribed burn, nevertheless these changes disappeared over time. We can conclude that prescribed fire can be a useful tool for fuel reduction in Mediterranean pine plantations without wide and long-term impacts to soil losses, or water quality. (C) 2019 Elsevier B.V. All rights reserved.
机译:火是一种复杂的现象,可能会产生一系列影响生态系统各个部分的响应和过程。因此,重要的是要了解火灾对土壤特性的影响程度以及植物对这种干扰的反应。目前,很少有研究检查明火对地中海生态系统中绿化的松树人工林大块地的影响。为了填补这一空白,在西班牙东南部的松树人工林中,评估了明火对燃烧后约一年的径流,土壤侵蚀和水质的影响。在规定的火灾发生后,我们立即在控制区域内构建了6个侵蚀区,在燃烧区域内构建了6个侵蚀区,它们分别长4 m和宽2 m。在所有地块的每个降雨事件之后,都对径流,土壤侵蚀和径流水质进行了研究。我们的研究结果表明,当松树人工林发生低强度降水时,规定的火灾不会明显影响径流和土壤侵蚀。关于水质,规定的灼伤后水的浊度,盐度,pH,有机物含量和离子性物质浓度立即增加,但是这些变化随时间消失。我们可以得出结论,规定的火势可以成为减少地中海松人工林燃料的有用工具,而不会对土壤流失或水质造成广泛和长期的影响。 (C)2019 Elsevier B.V.保留所有权利。

著录项

  • 来源
    《The Science of the Total Environment》 |2019年第15期|615-622|共8页
  • 作者单位

    Castilla La Mancha Univ, Higher Tech Sch Agr & Forestry Engn, Campus Univ S-N, Albacete 02071, Spain;

    Castilla La Mancha Univ, Higher Tech Sch Agr & Forestry Engn, Campus Univ S-N, Albacete 02071, Spain;

    Castilla La Mancha Univ, Higher Tech Sch Agr & Forestry Engn, Campus Univ S-N, Albacete 02071, Spain;

    Castilla La Mancha Univ, Higher Tech Sch Agr & Forestry Engn, Campus Univ S-N, Albacete 02071, Spain;

    CREAF, Barcelona, Spain;

    Mediterranean Univ Reggio Calabria, Dept Agr, Reggio Di Calabria, Italy;

    Castilla La Mancha Univ, Higher Tech Sch Agr & Forestry Engn, Campus Univ S-N, Albacete 02071, Spain;

    Castilla La Mancha Univ, Higher Tech Sch Agr & Forestry Engn, Campus Univ S-N, Albacete 02071, Spain;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Prescribed fire; Runoff; Water quality; Soil erosion; Pine plantations;

    机译:规定的火灾;径流;水质;水土流失;松树人工林;

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