Caracterización de materia orgánica aportada por hojarasca fina en los bosques de ribera del río Gaira (Sierra Nevada de Santa Marta – Colombia)

Quintero, Angie Collantes; Castellanos-Barliza, Jeiner; Peláez, Juan Diego León; Tamaris-Turizo, César E.

doi:10.22490/21456453.946

Cited by 8 publications

(5 citation statements)

References 4 publications

(4 reference statements)

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“…The WM, RM, and OR fractions represented minority contributions in both landscapes (2-12%). Similar patterns have been reported in different studies in a wide range of tropical forests [35,[39][40][41][42]. However, the ecological importance of these fractions in the ecosystem cannot be underestimated, as they represent permanent sources of materials that are gradually incorporated into nutrient cycles.…”

Section: Annual Fine Litterfallsupporting

confidence: 84%

Fine Litter Dynamics in Tropical Dry Forests Located in Two Contrasting Landscapes of the Colombian Caribbean

Castellanos-Barliza

Carmona-Escobar

Linero-Cueto

et al. 2022

Forests

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Tropical dry forests (TDFs) represent 42% of all tropical forests; they are extensive, but little is known of their structure and function. The fine litterfall represents the main route of circulation of organic materials and nutrients in these ecosystems. The objective of this study was to compare several remnants of TDFs located in contrasting landscape units—Mountain and Lomerio—and with different precipitation, in terms of the fluxes of organic materials to the soil, derived from the production of fine litterfall from the canopy. The fine litterfall (including woody material up to 2 cm in length) was collected monthly from April 2020 to March 2021, in 29 circular plots of 500 m2 randomly established. High rates of litterfall were recorded in the Lomerio landscape (4.9 Mg ha−1) than in the Mountain landscape (4.5 Mg ha−1). The monthly leaf litter production showed clear seasonal patterns, which were largely driven by the importance of the species in the landscape and the effect of precipitation during the study. Annual fine litter production observed in this study in comparison with other TDFs indicates relevant productivity levels, which contribute to the activation of biogeochemical cycles and improved ecosystem functionality.

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Section: Annual Fine Litterfallsupporting

confidence: 84%

Fine Litter Dynamics in Tropical Dry Forests Located in Two Contrasting Landscapes of the Colombian Caribbean

Castellanos-Barliza

Carmona-Escobar

Linero-Cueto

et al. 2022

Forests

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“…En el ACC que incluye a las familias del orden Diptera y a las subfamilias de Chironomidae (Fig. 3), las familias Psychodidae, Limoniidae y Blephariceridae tendieron a asociarse a mayores valores de nitrógeno total y de DQO en el punto "1Fuchaalto", posiblemente por aportes importantes de materia orgánica de la vegetación boscosa como hojas, ramas y troncos (Collantes et al, 2014). En el punto "2Fuchaalto", las subfamilias de chironómidos Tanypodinae y Chironominae fueron las más representativas, asociadas con aguas de mayor conductividad (Navarrete et al, 2004;Oviedo-Machado y Reinoso-Flórez, 2018) debido probablemente al poco caudal y a la gran cantidad de sólidos disueltos en la época de aguas bajas.…”

Section: Discussionunclassified

Estructura De La Comunidad De Dípteros Acuáticos en Tramos De Los Cursos Altos De Los Ríos Fucha Y Bogotá

2021

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Los macroinvertebrados acuáticos son bien conocidos como bioindicadores de la calidad del agua. En Colombia, los estudios sobre este tema se han hecho principalmente a nivel taxonómico de familia. En este trabajo se analizan las respuestas en abundancia, riqueza y diversidad de los dípteros identificados a nivel de género en ríos altoandinos (río Bogotá y río Fucha), en épocas de aguas bajas y aguas altas. Los especímenes se recolectaron con tres métodos: red Surber, red de mano y lavado de rocas. La temperatura promedio fue de 12,9 ºC y la saturación de oxígeno estuvo cerca del 100 % o más, con excepción del tramo bajo del río Bogotá antes de Villapinzón. Se colectaron 13 690 dípteros pertenecientes a diez familias y 40 géneros. La riqueza taxonómica fue alta, con una mayor variación en los tramos bajos de las dos corrientes. Las subfamilias de Chironomidae fueron las más abundantes. El análisis de correspondencia canónica (ACC) mostró que los Orthocladiinae se asociaron con la conductividad; el género Gigantodax(Simuliidae) no mostró una relación clara con ninguna variable; por el contrario, el género Simulium se vinculó con el caudal. En términos generales, la asociación entre taxones y variables ambientales fue más clara para los géneros que para las familias, pero no fue suficientemente robusta. Se sugiere que para encontrar un mayor grado de asociación biota-ambiente, es necesario realizar los análisis a nivel de especie, considerando las variaciones locales y temporales.

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“…Климатические условия бассейна реки Талала способствуют развитию пышной вечнозеленой растительности со сложным ярусным строением леса. Во влажных тропических лесах опавшая листва представляет собой источник с наибольшим количеством питательных и органических веществ, которые поступают обратно в почву, составляя от 25 до 60 % чистой первичной продуктивности [19].…”

Section: материалы и методыunclassified

Comprehensive water quality assessment of surface sources in the city of Latacunga and the canton Pedro Vicente Maldonado in Ecuador

Salazar Flores,

Kurbatova,

Mikhaylichenko

et al. 2023

Vestn. Ross. univ. družby nar., Ser. Èkol. bezop. žiznedeât.

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A study of the quality of drinking water sources - surface waters of the river systems of the city of Latacunga and the canton of Pedro Vicente Maldonado, Ecuador, was carried out during 2018 and 2019. The general sanitary water quality index (WQI) was calculated according to Russian methods, the water quality index of the National Sanitation Foundation (NSF-WQI) of the Ecuadorian water quality regulation. Results from parameterizing the water quality, obtained by WQI and NSF-WQI methods and combined into an overall scheme, were used to generate the rating scale for assessing the hydro-ecological status of aquatic ecosystems. When carrying out a qualitative and quantitative analysis of water from river reservoirs, the excess of the threshold limit values of such indicators as the biological oxygen demand and iron was determined. The calculations show that the WQI method and the NSF-WQI method lead to similar results when assessing the water quality of both reservoir of the city of Latacunga and canton of Pedro Vicente Maldonado. According to the WQI method, the hydrological state of the reservoir of the city of Latacunga was characterized in the range of a scale from “Crisis” to “Risk”, while according to the NSF-WQI method the state was assessed as “Risk”. The hydrological state of the reservoir of the canton of Pedro Vicente Maldonado, was assessed as “Risk” by both the WQI method and the NSF-WQI method. Furthermore, in none of the water bodies under study is the environmental “catastrophe” not recorded.

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Caracterización de materia orgánica aportada por hojarasca fina en los bosques de ribera del río Gaira (Sierra Nevada de Santa Marta – Colombia)

Cited by 8 publications

References 4 publications

Fine Litter Dynamics in Tropical Dry Forests Located in Two Contrasting Landscapes of the Colombian Caribbean

Fine Litter Dynamics in Tropical Dry Forests Located in Two Contrasting Landscapes of the Colombian Caribbean

Estructura De La Comunidad De Dípteros Acuáticos en Tramos De Los Cursos Altos De Los Ríos Fucha Y Bogotá

Comprehensive water quality assessment of surface sources in the city of Latacunga and the canton Pedro Vicente Maldonado in Ecuador

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