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首页> 外文期刊>Environmental Science & Technology >Cattle, Clean Water, and Climate Change: Policy Choices for the Brazilian Agricultural Frontier
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Cattle, Clean Water, and Climate Change: Policy Choices for the Brazilian Agricultural Frontier

机译:牛,清洁水和气候变化:巴西农业前沿的政策选择

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摘要

In the Amazonian agricultural frontier, pasture for cattle ranching is an important and potentially hazardous form of land use because of sediment erosion as pastures degrade. This relationship between ranching, sediment load, and water quality is likely to further exacerbate environmental impacts, particularly in the context of climate change. We examine the role that river basin councils (RBCs) - a water governance option of Brazil's 1397 National Water Act- might play in managing this nonpoint-source pollution in the Amazonian state of Rondonia. We implement a simple coupled rancher-water system model to compare two potential governance options: a bulk water cleanup charge (BWC) implemented by RBCs and a land-use fine (LUF) for failing to maintain riparian buffers. We find no significant advantage of BWC over LUF in reducing sediment loading while keeping ranching profitable, under a changing climate. We also fail to find in Rondonia the important stake in water issues that has driven water reform elsewhere in Brazil. Moreover, the comparative success of reforestation programs suggests these programs may, in fact have the potential to manage nonpoint-source agricultural pollution in the region.
机译:在亚马逊地区,牧场放牧是牧场发展的重要形式,因为牧场退化导致沉积物侵蚀,这是一种潜在的潜在危险土地使用形式。牧场,沉积物负荷和水质之间的这种关系可能会进一步加剧环境影响,特别是在气候变化的情况下。我们研究了流域理事会(RBC)(巴西的1397年《国家水法》的一种水治理选择)在管理亚马逊多邦州龙多尼亚州这种非点源污染中可能发挥的作用。我们实施了一个简单的牧场主-水系统耦合模型,以比较两个潜在的治理方案:由RBC实施的大宗水净化费用(BWC)和因未能保持河岸缓冲而造成的土地使用罚款(LUF)。我们发现,在气候变化的情况下,BWC与LUF相比在减少泥沙负荷,同时保持牧场获利方面没有显着优势。我们还没有在朗多尼亚发现在水问题上的重要利益,这些问题推动了巴西其他地方的水改革。此外,重新造林计划的相对成功表明,这些计划实际上可能具有管理该地区非点源农业污染的潜力。

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  • 来源
    《Environmental Science & Technology》 |2010年第22期|p.8377-8384|共8页
  • 作者单位

    School of Natural Resources and Environment, University of Michigan, 440 Church Street, Ann Arbor, Michigan 48103;

    School of Natural Resources and Environment, University of Michigan, 440 Church Street, Ann Arbor, Michigan 48103;

    School of Natural Resources and Environment, University of Michigan, 440 Church Street, Ann Arbor, Michigan 48103;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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