...
首页> 外文期刊>Aquatic Sciences >Assessing a decade of phosphorus management in the Lake Mendota, Wisconsin watershed and scenarios for enhanced phosphorus management
【24h】

Assessing a decade of phosphorus management in the Lake Mendota, Wisconsin watershed and scenarios for enhanced phosphorus management

机译:评估威斯康星州门多塔湖流域的磷管理十年以及加强磷管理的方案

获取原文
获取原文并翻译 | 示例
           

摘要

A phosphorus (P) budget was estimated for the watershed of Lake Mendota, Wisconsin, to assess the effects of nutrient management on P accumulation in the watershed soils. We estimated how nutrient management programs and legislation have affected the budget by comparing the budget for 2007 to a budget calculated for 1995, prior to implementation of the programs. Since 1995, inputs decreased from 1,310,000 to 853,000 kg P/yr (35% reduction) and accumulation decreased from 575,000 to 279,000 kg P/yr (51% reduction). Changes in P input and accumulation were attributed primarily to enhanced agri cultural nutrient management, reduction in dairy cattle feed supplements and an urban P fertilizer ban. Four scenarios were investigated to determine potential impacts of addi tional nutrient management tactics on the watershed P budget and P loading to Lake Mendota. Elimination of chemical P fertilizer input has the greatest potential to reduce watershed P accumulation and establishment of riparian buffers has the greatest potential to prevent P loading to Lake Mendota.
机译:估算了威斯康星州门多塔湖流域的磷预算,以评估养分管理对流域土壤中磷积累的影响。通过将2007年预算与1995年计划执行之前的预算进行比较,我们估算了养分管理计划和立法对预算的影响。自1995年以来,投入量从每年131万公斤减少到853,000公斤P /年(减少35%),积累从每年575,000公斤减少到279,000公斤P /年(减少51%)。磷输入和积累的变化主要归因于农业营养管理的加强,奶牛饲料补充剂的减少和城市磷肥的禁止。研究了四种方案,以确定其他养分管理策略对流域磷预算和门多塔湖磷负荷的潜在影响。消除化学磷肥输入的最大潜力在于减少流域磷的积累,而建立河岸缓冲带则具有最大的潜力来防止磷向门多塔湖的装载。

著录项

  • 来源
    《Aquatic Sciences》 |2012年第2期|p.241-253|共13页
  • 作者单位

    Department of Civil and Environmental Engineering,University of Wisconsin-Madison, 1550 Linden Dr.,Madison, WI 53706, USA;

    Department of Civil and Environmental Engineering,University of Wisconsin-Madison, 1415 Engineering Dr.,Madison, WI 53706, USA;

    Department of Zoology, University of Wisconsin-Madison,1630 Linden Dr., Madison, WI 53706, USA;

    Center for Limnology, University of Wisconsin-Madison,680 N. Park St., Madison, WI 53706, USA;

    Nelson Institute for Environmental Studies,University of Wisconsin-Madison, 1415 Engineering Dr.,Madison, WI 53706, USA;

    Center for Limnology, University of Wisconsin-Madison,680 N. Park St., Madison, WI 53706, USA;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    eutrophication lake mendota; mass balance; nutrient management; phosphorus;

    机译:富营养化门多塔湖;质量平衡;营养管理;磷;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号