Water balances of old-growth and regenerating montane cloud forests in central Veracruz, Mexico
Por:
Munoz-Villers, LE, Holwerda F., Gómez-Cárdenas M., Equihua M., Asbjornsen H., Bruijnzeel L.A., Marín-Castro B.E., Tobón C.
Publicada:
10 sep 2012
Categoría:
Water Science and Technology
Resumen:
This paper compares the water budgets of two adjacent micro-catchments covered by mature (MAT) and 20-year-old secondary (SEC) lower montane cloud forests, respectively, in central Veracruz, Mexico over a 2-year period. Rainfall (P) and streamflow (Q) were measured continuously, whereas dry canopy evaporation (transpiration E-t), wet canopy evaporation (rainfall interception I), and cloud water interception (CWI) were quantified using a combination of field measurements and modeling. Mean annual P was 3467 mm, of which typically 80% fell during the wet season (May-October). Fog interception occurred exclusively during the dry season (November-April), and was <= 2% of annual P for both forests. Rainfall interception loss was dominated by post-event evaporation of intercepted water rather than by within-event evaporation. Therefore, the higher overall I (i.e. including CWI) by the MAT (16% of P vs. 8% for the SEC) reflects a higher canopy storage capacity, related in turn to higher leaf
Filiaciones:
Depto. de Ecología Aplicada, Instituto de Ecología, A.C., Xalapa, Veracruz, Mexico
Department of Forest Engineering, Resources and Management, Oregon State University, Corvallis, OR, United States
Instituto de Ecología, A.C., Xalapa, Veracruz, Mexico
Department of Hydrology and Geo-Environmental Sciences, Faculty of Earth and Life Sciences, VU University, Amsterdam, Netherlands
Department of Natural Resource Ecology and Management, Iowa State University, Ames, IA, United States
Instituto Nacional de Investigaciones Forestales Agrícolas y Pecuarias, Oaxaca, Oax., Mexico
Universidad Nacional de Colombia, Medellín, Colombia
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