Calidad del bosque de ribera del río El Tunal, Durango, México; mediante la aplicación del índice QBR

Abstract

RESUMENLa evaluación de la condición ecológica de las riberas es un elemento importante en el estudio de los ríos alrededor del mundo. El objetivo del presente trabajo fue evaluar la calidad del bosque de ribera, desde un punto de vista estructural y funcional, en un tramo de 21 kilómetros del río El Tunal en Durango, México, mediante la aplicación del índice QBR. En el tramo estudiado se evaluaron seis sitios seleccionados por su representatividad, accesibilidad y heterogeneidad de su vegetación. En general, los resultados muestran un río con indicios importantes de deterioro; se encontraron dos sitios con calidad intermedia, dos sitios presentaron calidad mala y los dos restantes presentaron calidad pésima.PALABRAS CLAVE: QBR, El Tunal, México, bosque de ribera. ABSTRACTThe assessment of the ecological condition of the river banks is an important element in the rivers study around the world. The objective of this work was to evaluate the ecological condition of the riparian forest in a transect of 21 km of El Tunal river in Mexico with the QBR index. In the transect of study six sites were evaluated which were selected by the representation, possibilities of access and the heterogeneity of the vegetation. In general, the results have shown a river with important signs of deterioration; two sites results in an intermediate quality, two sites results in bad quality and two results in poor quality.

Influence of land use on the condition of the riparian zone along an urban-rural gradient in the Sabinal River, Mexico

“…Likewise, the higher occurrence of exotic species in areas of human settlements probably responds to the higher human disturbance and potential introduction through people using riparian zones (Sunil et al 2010). This situation leads to the gradual replacement of native for allochthonous species, affecting the composition and diversity of the native plant community (Burton et al 2005, Rodríguez-Téllez et al 2012, White et al 2014.…”

The role of riparian vegetation in the evaluation of ecosystem health: The case of semiarid conditions in Northern Mexico

“…We established the area of the riparian zone as stipulated in section XLVII of the third article of the “Mexican National Water Law 1992” (L.A.N., ). The distance between sampling sites was chosen so that it did not exceed 10 km (Acosta et al, ), given that at larger distances the factors being evaluated may lose continuity and parts of the vegetation may remain unanalysed (Rodríguez‐Téllez et al, ). The river characterization was conducted in February 2016.…”

“…The distance between sampling sites was chosen so that it did not exceed 10 km (Acosta et al, 2009), given that at larger distances the factors being evaluated may lose continuity and parts of the vegetation may remain unanalysed (Rodríguez-Téllez et al, 2012). The river characterization was conducted in February 2016.…”

“…In Mexico, the QBR index has been applied to the El Tunal and Sauceda Rivers in the state of Durango, and the results showed the current pressures on the riparian forest ecosystem. The ease of application, the low costs incurred, and the reliability of the information generated were noted as important factors in the decision to use this methodology (Rodríguez-Téllez, Domínguez-Calleros, Pompa-García, Quiroz-Arratia, & Pérez López, 2012;Rodríguez-Téllez et al, 2016). Previous work suggests that with the appropriate changes, the QBR index allows for the in situ evaluation of the conservation value of riverbank vegetation, including the assessment of anthropogenic impacts on any riparian ecosystem (Fernández, Rau, & Arriagada, 2009).…”

Characterization of the ecological quality of the gallery forest of the river La Sauceda, Durango, Mexico

“…La cuenca hidrográfica de este río comprende una superficie de 2452 km 2 , en su desembocadura se tiene un volumen de 50.56 millones de metros cúbicos anuales, este volumen de agua es aprovechado mediante su regulación en la presa Peña del Águila, que tiene una superficie de espejo de agua de 740 ha (Návar, 2007). El clima es semifrío con lluvias en verano, con una temperatura media anual de 11°C y una precipitación anual de 550 mm (Rodríguez, 2011). Los tipos de vegetación van desde bosques de pino-encino en la parte más alta de la Figura 1.…”