evaluación de la calidad de suelos dystric cryandept en el santuario de flora y fauna galeras, nariño
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ID: 165211
2005
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Abstract
En el Santuario de Flora y Fauna Galeras, ubicado en el departamento de Nariño, a 3.200, 3.500 y 3.800 msnm se evaluó el efecto de la intervención antrópica sobre algunas propiedades de sus suelos. En cada altitud se evaluaron 13 puntos de muestreo, separados 8 m, con un intervalo de 21 días en tres profundidades (0-5 cm, 5-10 cm y 10-15 cm) y el mantillo cuando estuvo presente. El mayor aporte a la biomasa de la macrofauna del suelo la hicieron las clases Arachnida, Crustácea, Diplópoda e Insecta y los órdenes Araneae, Coleóptera, Díptera y Polydesmidae, que se localizaron principalmente a los 3.800 msnm; la clase Gasterópoda y el orden Opilionidae lo hicieron a los 3.200 msnm. Como una aproximación a la obtención de indicadores de calidad del suelo, se podría utilizar la presencia de algunas clases, órdenes y familias de artrópodos ausentes o cuyo número disminuyó o se localizaron únicamente a los 3.200 msnm, que es el área intervenida. Dentro de los factores químicos y físicos se podrían utilizar el pH, la materia orgánica, la densidad aparente, la porosidad y la humedad gravimétrica, que tendieron a cambiar con el grado de intervención.
Abstract
Evaluation of soils quality Dystric Cryandept in the flora and fauna Galeras sanctuary, Nariño. In the Sanctuary of Flora and Fauna Galeras, located in the department of Nariño, at 3.200, 3.500 y 3.800 meters above sea level, it was tested the effect of antropic intervention on some soil properties. In each altitude, 13 sampling point separated by 8 meters were established. These were evaluated with a 21 day interval, three types of deepness were considerated (0-5; 5-10 and 10-15 cm) litter when it was present. The highest contribution of biomass of soil microfauna is made by Arachnida, Crustácea, Diplópoda e Insecta classes. Araneae, Coleóptera, Díptera and Polydesmidae orders were mainly located at 3.800 m.a.s.l.; Gasterópoda class and Opilionidae order were located at 3.200 m.a.s.l. It could be used as indicators of soil quality, the presence of some classes, orders and arthopod families which are absent or their number is decreased or those which are only found at 3.200 m.a.s.l., which is the intervened area. It could be possible to incluide inside chemical and physical factors, pH, organic matter, apparent density, porosity and gravimetric humidity which tend changing with intervention level happening al 3.200 m.a.s.l.
Key words: Galeras volcano, quality indicators, macrofauna, edaphic factors, soil morphological features, chemicophysical properties.
| Reference Key |
marina2005actaevaluacin
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| Authors | ;Sánchez de Prager Marina;Unigarro S. Alberto E;Burbano O. Hernán |
| Journal | Rapid communications in mass spectrometry : RCM |
| Year | 2005 |
| DOI |
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| Keywords | Keywords not found |
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