| Автор | Dalal, R. C. |
| Дата выпуска | 1979 |
| dc.description | The rainwater collected from daily rainfalls at six rainfall stations in Trinidad over a 1‐year period was analyzed for NH<sub>4</sub><sup>+</sup>, NO<sub>3</sub><sup>−</sup>, urea‐N, Mg<sup>2+</sup>, Ca<sup>2+</sup>, Na<sup>+</sup>, K<sup>+</sup>, Cl<sup>−</sup>, and SO<sub>4</sub><sup>2−</sup> concentrations. The concentration of these constituents varied from 0.41 to 1.13, 0.41 to 1.24, 0.15 to 0.50, 0.33 to 0.99, 1.88 to 4.52, 1.92 to 2.57, 1.21 to 3.27, 2.10 to 3.93, and 1.89 to 17.75 mg/1 of NH<sub>4</sub>‐N, NO<sub>3</sub>‐N, urea‐N, Mg<sup>2+</sup>, Ca<sup>2+</sup>, Na<sup>+</sup>, K<sup>+</sup>, Cl<sup>−</sup>, and SO<sub>4</sub><sup>2−</sup>, respectively. Considerable amounts of these constituents were added to the soil through rainfall. Major proportions of NH<sub>4</sub><sup>+</sup> and NO<sub>3</sub><sup>−</sup> and some proportions of SO<sub>4</sub><sup>2−</sup> in rainwater may have been derived from gaseous sources, probably originating from soil. Urea‐N seems to have originated as particulate matter from soil organic matter and microbial cell debris. Greater proportions of Ca<sup>2+</sup> and K<sup>+</sup>, and smaller proportions of Mg<sup>2+</sup> and SO<sub>4</sub><sup>2−</sup> appear to have been derived from terrestrial dust. Sodium, Cl<sup>−</sup>, Mg<sup>2+</sup> and partly Ca<sup>2+</sup>, K<sup>+</sup> and SO<sub>4</sub><sup>2</sup> were derived from marine sources. Thus it appears that the sources of various constituents in the Trinidad rainfall are quite varied. |
| Формат | application.pdf |
| Копирайт | Copyright 1979 by the American Geophysical Union. |
| Тема | GEOCHEMISTRY |
| Тема | 1001 |
| Тема | Composition of the hydrosphere |
| Тема | ATMOSPHERIC PROCESSES |
| Тема | 3302 |
| Название | Composition of Trinidad rainfall |
| Тип | article |
| DOI | 10.1029/WR015i005p01217 |
| Electronic ISSN | 1944-7973 |
| Print ISSN | 0043-1397 |
| Журнал | Water Resources Research |
| Том | 15 |
| Первая страница | 1217 |
| Последняя страница | 1223 |
| Выпуск | 5 |
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