• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Lakes & Reservoirs >Lake Jabel restoration project: Phosphorus status and possibilities and limitations of diversion of its nutrient-rich main inflow
【24h】

Lake Jabel restoration project: Phosphorus status and possibilities and limitations of diversion of its nutrient-rich main inflow

机译：贾贝尔湖恢复项目：磷的状况以及其营养丰富的主要流入量的转移可能性和局限性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

External and internal phosphorus loading was studied in 1996 in the anthropogenically eutrophicated Lake Jabel, which is located in Mecklenburg (north-eastern Germany). It has a dimictic 23-m-deep northern basin, a 19-m-deep middle basin and a 6-m-deep polymictic southern basin. The main tributary, GrabowhÖfer Grenzgraben, which enters via a leaching field from a waste-water treatment plant, has been identified as the major nutrient discharge (80% of total phosphorus loading) into the northern basin. The sediment is the second largest source of phosphorus for Lake Jabel, contributing 25.7%, 27.4% and 2.4% of the overall phosphorus load to the northern, middle and southern basins, respectively. Although the favoured diversion of the GrabowhÖfer Grenzgraben would contribute to a reduction of 1.22 t P and 20.94 t NO3-–-N per year, it is mainly rejected for the following reasons. If the extreme monthly nitrate supply, between 4.84 and 189.6 mg N m-2 day–1 ceased, the release of redox-sensitive phosphorus in the northern basin would increase by a factor of 0.54, which is with 41.1% total phosphorus, twice as high as that in the middle basin. In addition, the nitrate supply can substantially lower the seasonal precipitation of stable iron sulphides, which would otherwise lower the concentration of redox-sensitive phosphorus, but cannot change the phosphorus retention in the long term. Because of internal phosphorus sources, the diversion of the GrabowhÖfer Grenzgraben would result in no substantial changes in the level of trophy.
机译：1996年，在位于德国东北部梅克伦堡的人为富营养化的贾贝尔湖中研究了外部和内部的磷负荷。它有一个深层的23米深的北部盆地，一个深19米的中层盆地和一个6米深的多形南部盆地。主要支流GrabowhÖferGrenzgraben通过废水处理厂的浸出场进入，已被确定为北部流域的主要养分排放（占总磷含量的80％）。沉积物是贾贝尔湖的第二大磷源，分别为北部，中部和南部盆地贡献了25.7％，27.4％和2.4％的总磷负荷。尽管青睐的GrabowhöferGrenzgraben的分流每年可减少1.22吨P和20.94吨NO3 --- N，但主要由于以下原因而被拒绝。如果停止每月最高硝酸盐供应量（第N-1天-第1天介于4.84和189.6 mg之间），那么北部盆地对氧化还原敏感的磷的释放将增加0.54倍，占总磷的41.1％，是两倍。和中部盆地一样高。另外，硝酸盐的供应可以显着降低稳定的硫化铁的季节性沉淀，否则会降低对氧化还原敏感的磷的浓度，但不能长期改变磷的保留。由于内部磷源的缘故，对GrabowhöferGrenzgraben的转移不会导致奖杯水平发生实质性变化。

著录项

  • 来源
    《Lakes & Reservoirs》 |2000年第1期|23-33|共11页
  • 作者

    Andreas Kleeberg; Brigitte Nixdorf; JÜrgen Mathes;

  • 作者单位

    Brandenburg Technological University of Cottbus Chair of Water Conservation Seestraße 45 D-15526 Bad Saarow and Brandenburg Technological University of Cottbus Chair of Water Conservation Seestraße 45 D-15526 Bad Saarow and;

    Brandenburg Technological University of Cottbus Chair of Water Conservation Seestraße 45 D-15526 Bad Saarow and;

    Public Office for Environment and Nature Mecklenburg/Vorpommern Pampower Straße 66–68 D-19061 Schwerin Germany;

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

    eutrophication; inflow diversion; lake restoration; phosphorus loading; phosphorus release; nitrate;

    机译：富营养化;入水改道;湖泊修复;磷负荷;磷释放;硝酸盐;

相似文献

  • 外文文献
  • 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