Reserva de carbono y retención de material particulado en árboles del Campus de la Pontificia Universidad Católica del Perú
Authors
Nina Quispe, Alex
Abstract
Las áreas verdes urbanas, son un aliado estratégico en la formulación de políticas orientadas al manejo de los problemas ambientales vinculados al crecimiento de las ciudades. El objetivo del presente estudio fue, establecer la importancia de los árboles como reservorio de carbono y como superficie de retención de material particulado suspendido en un área verde urbana como el campus de la PUCP, y considerando los caracteres funcionales de las especies arbóreas, establecer especies con mayor capacidad para brindar dichos servicios. Inicialmente se obtuvo información dasométrica y taxonómica de todos los individuos arbóreos del campus de la PUCP, en base a esta información y utilizando ecuaciones alométricas, se cuantificó el carbono almacenado. Para la cuantificación del material particulado retenido sobre las hojas, se eligieron las 10 especies más comunes y empleando procedimientos gravimétricos y en base a metodologías establecidas, se determinaron las especies que muestran una mayor retención, paralelamente se midieron caracteres funcionales de tallos y hojas de estas especies. Los resultados muestran que se registraron 1268 individuos arbóreos, ordenados en 108 especies taxonómicas, de los cuales el 27.7 % corresponde a la flora nativa. El cálculo de la reserva de carbono en los árboles asciende a 145.847 t siendo Fabaceae, Myrtaceae y Meliaceae las familias que almacenan más del 50 %. En cuanto a la retención de material particulado, Ficus benjamina, Brachychiton acerifolius y Tipuana tipu, son las especies que acumulan mayor cantidad de material particulado, sobrepasando los 2.5 g/m2 de área foliar. La cantidad de carbono almacenado por los árboles del campus, demuestra que las áreas verdes urbanas pueden ser un importante sumidero de carbono y del mismo modo se demostró que las hojas retienen material particulado, atenuando el contacto directo con las personas. Finalmente, considerar árboles con los caracteres funcionales adecuados, favorece a que estos servicios sean proveídos eficientemente.
Urban green areas are a strategic ally in the formulation of policies aimed at managing environmental problems linked to the growth of cities. The goal of this study was to establish the importance of trees as a carbon reservoir and as a retention surface for suspended particulate matter in an urban green area such as the PUCP campus, and considering the functional characteristics of tree species, to establish species better able to provide these services. Initially, dasometric and taxonomic information was obtained for all tree individuals on the PUCP campus, and based on this information and using allometric equations, the carbon stored was quantified. For the quantification of the particulate matter retained in the leaves, the 10 most common species were chosen and using gravimetric procedures and based on established methodologies, the species that show a higher retention were determined, in parallel, functional characteristics of stems and leaves of these species were measured. The results show that 1268 arboreal individuals were recorded, arranged in 108 taxonomic species, of which 27.7% corresponds to the native flora. The calculation of the carbon stock in the trees amounts to 145,847 t, with Fabaceae, Myrtaceae and Meliaceae families storing more than 50%. Regarding the retention of particulate matter, Ficus benjamina, Brachychiton acerifolius and Tipuana tipu, are the species that accumulate the highest amount of particulate matter, exceeding 2.5 g/m2 of leaf area. The amount of carbon stored by the campus trees shows that urban green areas can be an important carbon sink, and it was also demonstrated that the leaves retain particulate matter, attenuating direct contact with people. Finally, considering the appropriate functional characteristics favors the efficient provision of these services.
Urban green areas are a strategic ally in the formulation of policies aimed at managing environmental problems linked to the growth of cities. The goal of this study was to establish the importance of trees as a carbon reservoir and as a retention surface for suspended particulate matter in an urban green area such as the PUCP campus, and considering the functional characteristics of tree species, to establish species better able to provide these services. Initially, dasometric and taxonomic information was obtained for all tree individuals on the PUCP campus, and based on this information and using allometric equations, the carbon stored was quantified. For the quantification of the particulate matter retained in the leaves, the 10 most common species were chosen and using gravimetric procedures and based on established methodologies, the species that show a higher retention were determined, in parallel, functional characteristics of stems and leaves of these species were measured. The results show that 1268 arboreal individuals were recorded, arranged in 108 taxonomic species, of which 27.7% corresponds to the native flora. The calculation of the carbon stock in the trees amounts to 145,847 t, with Fabaceae, Myrtaceae and Meliaceae families storing more than 50%. Regarding the retention of particulate matter, Ficus benjamina, Brachychiton acerifolius and Tipuana tipu, are the species that accumulate the highest amount of particulate matter, exceeding 2.5 g/m2 of leaf area. The amount of carbon stored by the campus trees shows that urban green areas can be an important carbon sink, and it was also demonstrated that the leaves retain particulate matter, attenuating direct contact with people. Finally, considering the appropriate functional characteristics favors the efficient provision of these services.
Description
Universidad Nacional Agraria La Molina. Escuela de Posgrado. Maestría en Ciencias Ambientales
Keywords
Universidades; Aire; Plomo; Monóxido de carbono; Medición; Polución; Calidad; Evaluación; Perú; Calidad del aire; Concentración del material particulado; Adsorción; Arbolado; Pontificia Universidad Católica del Perú
Citation
Date
2022
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Licencia de uso
Excepto si se señala otra cosa, la licencia del ítem se describe como info:eu-repo/semantics/openAccess