نوع مقاله : مقاله پژوهشی
نویسندگان
1 مرکز تحقیقات کشاورزی و منابع طبیعی کردستان، سنندج، ص.پ: 714
2 مرکز تحقیقات حفاظت خاک و آبخیزداری
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Although the point source pollutants have been somehow controlled in the word, major improvements in alleviating pollutants effluents and their flows to water resources are still lacking. ZarivarLake is one of the exceptional tourist attraction points in the west of Iran which has been placed on the wetlands list of World Environment Organization. Farmers use the water of the lake as an irrigation source.
This research contains 2 distinct steps: Field runoff sampling and analyzing for: BOD5, total Phosphorous, total Nitrogen and total suspended solids and statistical analysis of the recorded data. Based on this study the basin has four major land use types: forest, pasture, farming and urban. The run off coefficient was calculated for each land use type by rational method and then confirmed by curve number method. The project had four treatments and three replications. The concentration and the value of pollutants for any land use type were compared by analysis of variance and comparing the means. Then the land uses were sorted descendingly based on the pollutants load they produce, and ultimately the annual pollutant load flowing into the lake was estimated. The results indicated significant difference between land uses, with the farming operations as the most pollutant type.
کلیدواژهها [English]
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