Hydrological simulation of a small forested catchment under different land use and forest management

Autor: Oliveira LT, Cecílio RA, Zanetti SS, Loos RA, Bressiani DA, Srinivasan R
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: iForest - Biogeosciences and Forestry, Vol 13, Iss 1, Pp 301-308 (2020)
Druh dokumentu: article
ISSN: 1971-7458
DOI: 10.3832/ifor3221-013
Popis: This paper describes the assessment of the SWAT hydrological model to reproduce continuous daily streamflow and simulate scenarios of forest management for a small catchment under tropical climate in Aracruz, Brazil. The main land use of the catchment consisted of eucalyptus cultivation. The SWAT parameters were calibrated and validated using daily hydrologic and meteorological data from 1997 to 2004. The statistical indices of SWAT validation (NS = 0.74, PBIAS = -14.34%, RSR = 0.51) show that SWAT performance was satisfactory in this application. Different land use and forest management scenarios were simulated with the aim of assessing their influence over the streamflow. The scenarios were: catchment under eucalyptus cultivation with three different forest managements and catchment under the native forest (Atlantic Rainforest). The scenarios simulations did not show significant changes in the long-term average streamflow. Minimum, maximum, and average annual streamflows were higher for eucalyptus scenarios compared to the native forest scenario. These results should be carefully applied to other watersheds as they reflect soil, landscape, and climate characteristics, as well as the geographic location, size, and use of water of the plantings and other vegetation.
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