Nitrogen Sequestration and Riparian Buffer literature reviews

Nitrogen Sequestration Report (631 KB pdf file)

Abstract
Fossil fuel power generation results in air emissions of several Environmental Protection Agency criteria pollutants, including NOx. Atmospheric deposition of nitrogen to land and water surfaces introduces a significant amount of nitrogen to the Chesapeake Bay and contributes to an excess of nitrogen in both terrestrial and aquatic ecosystems. PPRP is studying the potential for enhancing the biological removal of nitrogen in headwater streams as a nitrogen pollution control strategy, relevant to power plant licensing conditions. Straughan Environmental Services, Inc. (SES), under the direction of Versar, Inc., conducted a literature search to identify the range of issues and information available to support the PPRP in evaluating the ability of headwater streams to process nitrogen. Preliminary research indicates these streams perform a significant amount of nitrogen sequestration and that this process could be enhanced by improving water quality in biota poor or acidified streams, and by implementing certain stream restoration design characteristics. This literature review supports the PPRP goal of protecting Maryland’s natural resources while maintaining our power-generation infrastructure.

Table: Nitrogen Sequestration Literature Summary (48 KB pdf file)

Riparian Buffer Effectiveness Report (195 KB pdf file)

Abstract
Fossil fuel power generation results in air emissions of several Environmental Protection Agency criteria pollutants, including NOx. Atmospheric deposition of nitrogen to land and water surfaces introduces a significant amount of nitrogen to the Chesapeake Bay and contributes to an excess of nitrogen in both terrestrial and aquatic ecosystems. PPRP is evaluating the effectiveness of vegetated riparian buffers for nitrogen removal. A scientifically defensible and easily communicated method for calculating the nitrogen sequestration benefits is needed for the reforestation conditions placed on power plant license applicants. Straughan Environmental Services, Inc. (SES), under the direction of Versar, Inc., conducted a literature search to identify the range of issues and information available to support the PPRP in evaluating the effects of the buffers on nitrogen removal. Literature relating to the Mid-Atlantic coastal plain were specifically targeted, but also included more general resources when appropriate. This literature review supports the PPRP goal of protecting Maryland’s natural resources while maintaining our power-generation infrastructure.

Table: Riparian Buffer Effectiveness Literature Summaries (40 KB pdf file)