Cambio de la cubierta vegetal y vulnerabilidad a la inundación en el curso bajo del río Papaloapan, Veracruz
oleh: Azucena Pérez Vega, Mario Arturo Ortiz Pérez
| Format: | Article |
|---|---|
| Diterbitkan: | Universidad Nacional Autónoma de México 2002-01-01 |
Deskripsi
The study showed that the increase in maximum flows in the watersheds of the left side of the River Papaloapan is due to forest cover clearing on shallow slope areas (less than 6°) in the watersheds of the rivers Obispo, Tesechoacan and San Juan Evangelista. Forest clearing affected from 21 to 43 % of the total area of each watershed during the period 1973-1993. The analysis of annual rainfalls in these watersheds indicated no change in rainfall tendency during 1955-1990.