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1
tesis doctoral
Los bofedales (humedales altoandinos) son ecosistemas considerados como vulnerables al cambio climático, debido a su dependencia de factores como la precipitación y la temperatura. El presente trabajo tiene por objetivo evaluar los efectos del cambio climático sobre la salud y la cobertura de dos bofedales ubicados en las alturas de Arequipa, Perca (Castilla), y Ccallaccapcha (La Unión). Se analizaron imágenes satelitales Landsat entre los años 1985 al 2019, y los resultados de cobertura y salud se correlacionaron con datos meteorológicos obtenidos de la NASA para ambos lugares. La precipitación muestra incremento en los dos bofedales (9,62 mm/año en Ccallacapcha y 6,94 mm/año en Perca), como también las temperaturas mínimas (0,01 °C/año en Ccallacapcha y 0,015 °C/año en Perca), en tanto, el comportamiento de las temperaturas máximas difiere entre bofedales, en Ccallacca...
2
artículo
High Andean wetlands are important ecosystems due to their ecosystem services. Carbon storage is a result of the low decomposition rate due to flooded soils and low temperatures. The carbon content stored in the high Andean wetland of Chalhuanca (Arequipa) was estimated and the value of this service was calculated. For this purpose, 30 samples were taken at random, establishing three carbon pools: aboveground biomass (leaves and stems), belowground biomass (roots) and organic soil. The samples were obtained with an auger-type device; each sample was dried at 65°C for at least 24 hours and the carbon content was determined using the Walkey-Black method and calculations and statistical tests were performed. The total carbon stored in relation to the area of the wetland was approximately 795,415.65 tons of CO2. The fraction of carbon per sample is higher in aerial biomass (49%), followed b...
3
artículo
High Andean wetlands are important ecosystems due to their ecosystem services. Carbon storage is a result of the low decomposition rate due to flooded soils and low temperatures. The carbon content stored in the high Andean wetland of Chalhuanca (Arequipa) was estimated and the value of this service was calculated. For this purpose, 30 samples were taken at random, establishing three carbon pools: aboveground biomass (leaves and stems), belowground biomass (roots) and organic soil. The samples were obtained with an auger-type device; each sample was dried at 65°C for at least 24 hours and the carbon content was determined using the Walkey-Black method and calculations and statistical tests were performed. The total carbon stored in relation to the area of the wetland was approximately 795,415.65 tons of CO2. The fraction of carbon per sample is higher in aerial biomass (49%), followed b...
4
artículo
High Andean wetlands are important ecosystems due to their ecosystem services. Carbon storage is a result of the low decomposition rate due to flooded soils and low temperatures. The carbon content stored in the high Andean wetland of Chalhuanca (Arequipa) was estimated and the value of this service was calculated. For this purpose, 30 samples were taken at random, establishing three carbon pools: aboveground biomass (leaves and stems), belowground biomass (roots) and organic soil. The samples were obtained with an auger-type device; each sample was dried at 65°C for at least 24 hours and the carbon content was determined using the Walkey-Black method and calculations and statistical tests were performed. The total carbon stored in relation to the area of the wetland was approximately 795,415.65 tons of CO2. The fraction of carbon per sample is higher in aerial biomass (49%), followed b...