...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Biotechnology Advances: An International Review Journal >Using Ecotechnology to address water quality and wetland habitat loss problems in the Mississippi basin: a hierarchical approach.
【24h】

Using Ecotechnology to address water quality and wetland habitat loss problems in the Mississippi basin: a hierarchical approach.

机译：利用生态技术解决密西西比河流域的水质和湿地栖息地丧失问题：一种分级方法。

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

Human activities are affecting the environment at continental and global scales. An example of this is the Mississippi basin where there has been a large scale loss of wetlands and water quality deterioration over the past century. Wetland and riparian ecosystems have been isolated from rivers and streams. Wetland loss is due both to drainage and reclamation, mainly for agriculture, and to isolation from the river by levees, as in the Mississippi delta. There has been a decline in water quality due to increasing use of fertilizers, enhanced drainage and the loss of wetlands for cleaning water. Water quality has deteriorated throughout the basin and high nitrogen in the Mississippi river is causing a large area of hypoxia in the Gulf of Mexico adjacent to the Mississippi delta. Since the causes of these problems are distributed over the basin, the solution also needs to be distributed over the basin. Ecotechnology and ecological engineering offer the only ecologically sound and cost-effective method of solving these problems. Wetlands to promote nitrogen removal, mainly through denitrification but also through burial and plant uptake, offer a sound ecotechnological solution. At the level of the Mississippi basin, changes in farming practices and use of wetlands for nitrogen assimilation can reduce nitrogen levels in the River. There are additional benefits of restoration of wetland and riverine ecosystems, flood control, reduction in public health threats, and enhanced wildlife and fisheries. At the local drainage basin level, the use of river diversions in the Mississippi delta can address both problems of coastal land loss and water quality deterioration. Nitrate levels in diverted river water are rapidly reduced as water flows through coastal watersheds. At the local level, wetlands are being used to treat municipal wastewater. This is a cost-effective method, which results in improved water quality, enhanced wetland productivity and increased accretion. The problems in the Mississippi basin serves as anexample for other watersheds in the Gulf of Mexico. This is especially important in Mexico, where there is a strong need for economical solutions to ecological problems. The Usumacinta delta-Laguna de Terminos regional ecosystem is an example where ecotechnological approaches offer realistic solutions to environmental problems.
机译：人类活动正在大陆和全球范围内影响环境。这方面的一个例子是密西西比盆地，在过去的一个世纪中，该地区的湿地大量丧失，水质恶化。湿地和河岸生态系统已经与河流和小溪隔离。与密西西比河三角洲一样，湿地的损失既是由于排水和填海造成的，主要是农业方面的损失，也有堤防与河流隔离的结果。由于增加了肥料的使用，排水的增加以及用于清洁水的湿地的丧失，水质有所下降。整个流域的水质恶化，密西西比河中的氮含量高，在密西西比河三角洲附近的墨西哥湾造成大量缺氧。由于这些问题的原因分布在整个盆地上，因此解决方案也需要分布在整个盆地上。生态技术和生态工程是解决这些问题的唯一生态上合理且具有成本效益的方法。湿地主要通过反硝化，但也可以通过掩埋和吸收植物来促进脱氮，这提供了完善的生态技术解决方案。在密西西比河流域，改变耕作方式和使用湿地进行氮同化可以降低河流中的氮含量。恢复湿地和河流生态系统，防洪，减少公共卫生威胁以及增强野生动植物和渔业还有其他好处。在当地流域，利用密西西比河三角洲的河流改道可以解决沿海土地流失和水质恶化的问题。随着水流过沿海集水区，分流河水中的硝酸盐含量迅速降低。在地方一级，湿地被用于处理城市废水。这是一种经济高效的方法，可改善水质，提高湿地生产力并增加吸积。密西西比河流域的问题是墨西哥湾其他流域的一个例子。这在墨西哥尤为重要，那里强烈需要经济解决生态问题的方法。 Usumacinta del-Laguna de Terminos区域生态系统就是生态技术方法为解决环境问题提供现实解决方案的一个例子。

著录项

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