| Autor: |
Boris Volkoff, Aristides Ribeiro, Carlos Eduardo Pellegrino Cerri, Jean-Luc Probst, Reynaldo Luiz Victoria, Jefferson Mortatti, Jener F. L. de Moraes, F. Andreux, Marisa de Cássia Piccolo, Yves Tardy, Luiz Antonio Martinelli |
| Rok vydání: |
1993 |
| Předmět: |
|
| Zdroj: |
Chemical Geology. 107:411-414 |
| ISSN: |
0009-2541 |
| DOI: |
10.1016/0009-2541(93)90221-4 |
| Popis: |
The Amazon is the largest stream in the world. Its basin covers at least 7 · 10 6 km 2 , which represents ∼ 5% of the global continental area and almost 70% of the area of the continents localized in the equatorial zone, between 5°S and 5°N of latitude. The global tropical moist forest covers ∼ 9.35 · 10 6 km 2 , so that the Brazilian evergreen rain forest represents at least 50% of this area. At Obidos, the most accessible downstream station for collecting data, the area concerned is 4.619 · 10 6 km 2 . The purpose of these two extended abstracts is to show how changes and oscillations of climate can significantly affect erosion as well as carbon and nitrogen cycles, and may also mask the degradations of the environment due to deforestation. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
