| Автор | Taylor, A. W. |
| Автор | Edwards, W. M. |
| Автор | Simpson, E. C. |
| Дата выпуска | 1971 |
| dc.description | Nitrogen, phosphate, and potassium concentrations were measured in streams draining woodland and farmland watersheds at Coshocton, Ohio, 1966 through 1969. Temporal variations in the nutrient concentrations were much smaller than the changes in the rate of streamflow. No relationship was found between any nutrient concentration and streamflow, and no seasonal changes in concentration were detected. Nutrient losses from farmland were significantly greater than those from woodland. The nitrate‐N concentration in the farm runoff was below 2 ppm except for one short period when it rose to 10 ppm. The input of nitrogen in the rain was greater than the loss in runoff from both watersheds. The average concentration of phosphate in runoff was 22 ppb (of P) from the farm and 15 ppb from the woodland. The analysis of the data shows that total nutrient losses cannot be calculated meaningfully unless both hydrologic and chemical data are available. The volume of water flow is the most important variable in this calculation. |
| Формат | application.pdf |
| Копирайт | Copyright 1971 by the American Geophysical Union. |
| Название | Nutrients in Streams Draining Woodland and Farmland near Coshocton, Ohio |
| Тип | article |
| DOI | 10.1029/WR007i001p00081 |
| Electronic ISSN | 1944-7973 |
| Print ISSN | 0043-1397 |
| Журнал | Water Resources Research |
| Том | 7 |
| Первая страница | 81 |
| Последняя страница | 89 |
| Выпуск | 1 |
| Библиографическая ссылка | Bray, R. H., L. T.Kurtz, Determination of total, organic and available forms of phosphorus in soils, Soil Sci., 59, 39–45, 1945. |
| Библиографическая ссылка | Bormann, F. H., G. E.Likens, Nutrient cycling, Science, 155, 424–429, 1967. |
| Библиографическая ссылка | Bormann, F. H., G. E.Likens, D. W.Fisher, R. S.Pierce, Nutrient loss accelerated by clear‐cutting of a forest ecosystem, Science, 159, 882–884, 1968. |
| Библиографическая ссылка | Conway, E. J., Microdiffusion Analysis and Volumetric Error2, Crosby Lockwood, London, 1947. |
| Библиографическая ссылка | Junge, C. E., The distribution of ammonia and nitrate in rainwater over the United States, Trans. Amer. Geophys. Union, 392, 241–248, 1958. |
