2006
DOI: 10.4067/s0718-34022006000100005
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Clasificación jerárquica y cartografía de ecosistemas en la zona andina de la Región del Biobío, Chile

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Cited by 5 publications
(6 citation statements)
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“…The annual precipitation ranges from 1200 mm in the lower reaches of the basin, to 1600 mm in the top section due to orographic control [57]. The precipitation in the basin is concentrated in 4 winter months (70%), where episodes of five days of continuous precipitation were common, with 124 mm/24 h in June in both 1974 and 2006 [43,46,54]. The average annual discharge reaches 14 m 3 /s at the closing flow gaging station of the basin, and reaches 565 m 3 /s and 634 m 3 /s during a flood of T = 50 and T = 100 years, respectively, with a time of Regarding the physical aspects, the basin is predominantly mountainous (granite ridges occupy more than 60% of the area).…”
Section: Area Of Study (Cma)mentioning
confidence: 99%
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“…The annual precipitation ranges from 1200 mm in the lower reaches of the basin, to 1600 mm in the top section due to orographic control [57]. The precipitation in the basin is concentrated in 4 winter months (70%), where episodes of five days of continuous precipitation were common, with 124 mm/24 h in June in both 1974 and 2006 [43,46,54]. The average annual discharge reaches 14 m 3 /s at the closing flow gaging station of the basin, and reaches 565 m 3 /s and 634 m 3 /s during a flood of T = 50 and T = 100 years, respectively, with a time of Regarding the physical aspects, the basin is predominantly mountainous (granite ridges occupy more than 60% of the area).…”
Section: Area Of Study (Cma)mentioning
confidence: 99%
“…The lower section of the Andalien River represents 4% of its area; however, 90% of the basin population resides within that section [43,44], in the municipalities of Concepcion and Talcahuano, where poverty rates reach 14.6% and 17.6%, respectively [45]. Urban occupation is characterized by urban sprawl and low density, especially in the periphery [46,47]. Urbanization has modified large sections of the river channel, resulting in various environmental effects including: biodiversity and habitat reduction; deterioration of vegetation cover; and waterlogging and flooding [48][49][50][51][52].…”
Section: Area Of Study (Cma)mentioning
confidence: 99%
“…We believe that developing a methodology for The Neotropical region due to its geophysical and biophysical diversity, as detailed by Burnham and Graham (1999), Mardones (2006)…”
Section: Discussionmentioning
confidence: 99%
“…Regionalización Ecológica y Unidades Ecológicas de Gestión: La teoría de los sistemas jerárquicos, se sustenta sobre la idea de que cada uno los componentes de un determinado sistema constituyen, a su vez y a una escala diferente, otros sistemas con dimensiones y con complejidad propias, que se anidan en aquél. Aplicado al medio natural, se puede entender que cada ecosistema, una vez dimensionado espacial y temporalmente según sus componentes estructurales y sus atributos funcionales y delimitado cartográficamente, según su expresión paisajística, acoge en su seno a otros sistemas naturales, de un nivel escalar inferior y forma parte integrante de una nueva entidad, perteneciente a un orden superior de magnitud (Mardones, 2006;. Esta consideración jerarquizada del territorio es susceptible de ser representada cartográficamente, utilizando diferentes niveles de resolución (Montes et al 1998), lo que supone una inestimable ventaja, ya que ello permite trabajar con la escala de análisis y gestión más adecuada, para cada problemática territorial (Galvis, 2007;Borja & Montes, 2008).…”
Section: Introductionunclassified