Estimated carbon dioxide exchange for three native species in an ecological reserve of Mexico City
Por:
Sanchez-Leon, Erika, Castro, Telma, Peralta, Oscar, Alvarez-Ospina, Harry, De La Luz Espinosa, Maria, Martinez-Arroyo, Amparo
Publicada:
1 jul 2016
Categoría:
Atmospheric Science
Resumen:
Capture and emission of carbon dioxide of three species (Buddleia
cordata, Senecio praecox and Echeveria gibbiflora) in the Reserva
Ecologica del Pedregal de San Angel (Ecological Reserve of the Pedregal
de San Angel), were estimated. CO2 sampling was carried out in 2010
during the dry (February, March, April and November) and rainy seasons
(July to October). On the dry season B. cordata and S. praecox captured
16.14 and 3.25 kg CO2, respectively, whereas E. gibbiflora emitted 45.76
kg CO2. In the rainy season the exchange of CO2 was different for the
three species. In the dry season, the photosynthetic rate was 22 mu mol
CO2 m(-2) s(-1) for B. cordata, 27 mu molCO(2) m(-2) s(-1) for S.
praecox and 29 mu molCO(2) m(-2) s(-1) for E. gibbiflora. In the rainy
season they were 6, 5.25 and 3 mu mol CO2 m(-2) s(-1), respectively. In
addition, MODIS data were used to estimate the normalized difference
vegetation index (NDVI), indicating that the intensity of greenery at
the site increased during the rainy months. This paper explains the
contribution of studied plants to the carbon cycle of an ecosystem
located within an urban area, and the relationship of environmental
variables such as temperature, density photosynthetic photon flux and
relative humidity in the capture or emission of CO2. This work provides
valuable information about the carbon cycle dynamics on urban
ecosystems, which can be useful in future studies for climate change
mitigation.
Filiaciones:
Sanchez-Leon, Erika:
Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Circuito Invest Cient S-N,Ciudad Univ, Mexico City 04510, DF, Mexico
Castro, Telma:
Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Circuito Invest Cient S-N,Ciudad Univ, Mexico City 04510, DF, Mexico
Peralta, Oscar:
Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Circuito Invest Cient S-N,Ciudad Univ, Mexico City 04510, DF, Mexico
Alvarez-Ospina, Harry:
Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Circuito Invest Cient S-N,Ciudad Univ, Mexico City 04510, DF, Mexico
De La Luz Espinosa, Maria:
Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Circuito Invest Cient S-N,Ciudad Univ, Mexico City 04510, DF, Mexico
Martinez-Arroyo, Amparo:
Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Circuito Invest Cient S-N,Ciudad Univ, Mexico City 04510, DF, Mexico
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