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Locally derived nonpoint loading estimates for the Boeuf River/Bayou Lafourche watershed.

机译:Boeuf河/ Bayou Lafourche流域的局部非点负荷估计。

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摘要

There is currently a great demand for data and models that can be used to quantify nonpoint source pollutant loads from different land-use types. The Louisiana Department of Environmental Quality (LDEQ) is in the process of implementing management programs for impacted water bodies based on the Total Maximum Daily Load (TMDL) of a pollutant. Pollutants of concern include total suspended solids (TSS), nitrogen, and phosphorus. One of the key parameters in determining the TMDL of a water body is the nonpoint source pollutant load from different land-use types. To date, such load estimates in Louisiana are lacking. The primary objective of this research is to develop site specific loading estimates for three different land-use types in the study area using flow proportional sampling techniques. These loading estimates will be used with currently available land-use data and published literature values for pollutant loads from different land-use types within the framework of Better Assessment Science Integrating Point and Nonpoint Sources (BASINS) to determine the applicability and sensitivity of available loading estimates. The applicability and usefulness of the simulation model known as Soil and Water Assessment Tool (SWAT) in modeling Boeuf watershed will also be examined. Finally, the performance of three biochemical oxygen demand (BOD) models will be compared using data specific to the Boeuf Watershed and the surrounding area.
机译:当前,对可用于量化来自不同土地利用类型的非点源污染物负荷的数据和模型的需求非常大。路易斯安那州环境质量部(LDEQ)正在根据污染物的总最大日负荷(TMDL)实施针对受影响水体的管理计划。令人关注的污染物包括总悬浮固体(TSS),氮和磷。确定水体TMDL的关键参数之一是来自不同土地利用类型的面源污染物负荷。迄今为止,路易斯安那州尚缺乏此类负荷估算。这项研究的主要目的是使用流量比例采样技术,为研究区域中三种不同土地利用类型开发特定地点的负荷估算。这些负荷估算值将与当前可用的土地利用数据一起使用,并在“更好的评估科学整合点和非点源”(BASINS)框架内,公布来自不同土地利用类型的污染物负荷的文献值,以确定可用负荷的适用性和敏感性估计。还将研究被称为土壤和水评估工具(SWAT)的模拟模型在Boeuf流域建模中的适用性和实用性。最后,将使用Boeuf流域和周边地区的特定数据比较三种生化需氧量(BOD)模型的性能。

著录项

  • 作者

    Roider, Emerald Purser.;

  • 作者单位

    Louisiana State University and Agricultural & Mechanical College.;

  • 授予单位 Louisiana State University and Agricultural & Mechanical College.;
  • 学科 Engineering Environmental.
  • 学位 Ph.D.
  • 年度 2007
  • 页码 166 p.
  • 总页数 166
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 环境污染及其防治;
  • 关键词

  • 入库时间 2022-08-17 11:40:32

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