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Annual Dissolved Nitrite Plus Nitrate and Total Phosphorous Loads for the Susquehanna, St. Lawrence, Mississippi-Atchafalaya, and Columbia River Basins, 1968-2004.

机译：年份溶解的亚硝酸盐加硝酸盐和总磷负荷为susquehanna，圣劳伦斯，密西西比 - 阿查法拉亚和哥伦比亚河流域，1968-2004。

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Annual stream-water loads were calculated near the outlet of four of the larger river basins (Susquehanna, St. Lawrence, Mississippi-Atchafalaya, and Columbia) in the United States for dissolved nitrite plus nitrate (NO2 + NO3) and total phosphorus using LOADEST load estimation software. Loads were estimated for the period 1968-2004; although loads estimated for individual river basins and chemical constituent combinations typically were for shorter time periods due to limitations in data availability. Stream discharge and water-quality data for load estimates were obtained from the U.S. Geological Survey (USGS) with additional stream discharge data for the Mississippi Atchafalaya River Basin from the U.S. Army Corps of Engineers. The loads were estimated to support national assessments of changes in stream nutrient loads that are periodically conducted by Federal agencies (for example, U.S. Environmental Protection Agency) and other water- and land-resource organizations.

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Aulenbach, B. T.;
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年度 2006
页码 1-19
总页数 19
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Water quality; Nitrites; Nitrates; Phosphorous; River basins; Chemical compounds; Nutrient loads; Estimates; Streams; Sampling; Water resources;

机译：水质;亚硝酸盐;硝酸盐;磷;河流流域;化学成分;营养盐负荷;估算;溪流;取样;水资源;

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Annual Dissolved Nitrite Plus Nitrate and Total Phosphorous Loads for the Susquehanna, St. Lawrence, Mississippi-Atchafalaya, and Columbia River Basins, 1968-2004.

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