Evaluación del grado de conservación de las cuencas hidrográficas de Nuevo León, México
| Autor: | Bernal Herrera Fernández, Fernando González Saldívar, José Isidro Uvalle Sauceda, César Cantú Ayala |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
impacto ambiental
Joint surface Forestry conservación Structural basin Metropolitan area lcsh:TD1-1066 Geography servicios ambientales Áreas naturales protegidas cuencas hidrográficas recurso hídrico General Earth and Planetary Sciences Conservation status lcsh:SD1-669.5 lcsh:Forestry lcsh:Environmental technology. Sanitary engineering General Environmental Science |
| Zdroj: | Revista Mexicana de Ciencias Forestales, Vol 9, Iss 50 (2018) |
| ISSN: | 2448-6671 |
| Popis: | In order to evaluate the conservation status of the watersheds of Nuevo Leon, 48 environmental variables were analyzed to construct four indexes. Four of the fourteen watersheds in Nuevo Leon cover 79 % of the state territory. Most prominent among them is the Rio Bravo–San Juan basin, which houses within it Monterrey’s Metropolitan Area, where over 90 % of the inhabitants of the state dwell. In contrast, six basins of Nuevo Leon cover a total of 2 492 km2 (3.9 % of state territory), and therefore they can be considered marginal. The six marginal watersheds of Nuevo Leon, in addition to Rio Soto La Marina, obtained the lowest scores for the Index of Sites with Official Declaration (< 2.4 points). The three basins with the highest scores for the Index of Proposed Priority Sites are among the marginal basins: Sierra de Rodriguez, Rio Tamesi and Matehuala, with values of 45.3, 39.1, and 36.8 points, respectively. The Rio Bravo- San Juan and Rio San Fernando basins registered the highest values for the Environmental Impact Index, with 60.7 and 40.5 points, respectively. For the Conservation Status Index, five of the 14 basins showed positive values (Rio Tamesi, Sierra Madre Oriental, Matehuala, Sierra de Rodriguez and Presa San Jose-Los Pilares), four of which are marginal, covering a joint surface area that amounts to only 2.3 % of the state. The fifth with positive value for this index was the Sierra Madre Oriental basin, while the nine remaining basins (Rio Bravo–Matamoros-Reynosa, Rio Bravo–San Juan, Rio Bravo–Sosa, Presa Falcon-Rio Salado, Rio Bravo-Nuevo Laredo, Rio Soto La Marina, Laguna Madre, Rio San Fernando and Sierra Madre Oriental) obtained negative values for this index, which means that the environmental impacts exceed the conservation attributes of these watersheds. |
| Databáze: | OpenAIRE |
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