Mathematical Modelling on the Effects of Acid Rain on a Fresh-Water Ecosystem (original) (raw)

2021, International Journal of Engineering and Applied Sciences (IJEAS)

AI-generated Abstract

This paper explores the impact of acid rain on freshwater ecosystems, particularly focusing on the Adirondack region of New York. By utilizing a predator-prey model comprising algae, herbivores, and predators, the study aims to demonstrate how variations in pH levels due to acid rain can affect species interactions and survival within these ecosystems. Through a combination of theoretical modeling and simulations, the researchers analyze stability conditions under varying environmental scenarios to gain insights into potential ecological outcomes.

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Hydrologic analyses of acidic and alkaline lakes

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Woods and Panther lakes in the Adirondack Mountains of New York respond differently to the same acidic deposition. A mathematical model study has shown that lake water becomes acidic when hydrologic conditions force precipitation to flow to the lakes as ...

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Proceedings of the international workshop on the effects of acid precipitation on vegetation, soils, and terrestrial ecosystems, Brookhaven National Laboratory, June 12 to 14, 1979

1979

The Workshop was held June 11-14, 1979 at Brookhaven National Laboratory, with the objectives of determining the (1) current knowledge in specific research areas, (2) research needs in light of energy and environmental considerations, and (3) levels of research coordination necessary to avoid excessive duplication of research efforts. In addition, the workshop was designed so that researchers working on effects of acid precipitation on (1) vegetation, (2) soils, and (3) whole ecosystem approaches could communicate effectively. It was hoped that communication among these three groups might lead to research collaboration that could bring a more holistic view to the research approaches. The following persons participated:

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Acidic deposition is comprised of sulfuric and nitric acids and ammonium derived from atmospheric emissions of sulfur dioxide, nitrogen oxides, and ammonia, respectively. Acidic deposition has altered soil through depletion of labile pools of nutrient cations (i.e. calcium, magnesium), accumulation of sulfur and nitrogen, and the mobilization of elevated concentrations of inorganic monomeric aluminum to soil solutions in acid-sensitive areas. Acidic deposition leaches essential calcium from needles of red spruce, making this species more susceptible to freezing injury. Mortality among sugar maples appears to result from deficiencies of nutrient cations, coupled with other stresses such as insect defoliation or drought. Acidic deposition has impaired surface water quality in the Adirondack and Catskill regions of New York by lowering pH levels, decreasing acid-neutralizing capacity, and increasing aluminum concentrations. Acidification has reduced the diversity and abundance of aquatic species in lakes and streams. There are also linkages between acidic deposition and fish mercury contamination and eutrophication of estuaries.

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