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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Hydrological modeling of the Ribeirão das Posses - An assessment based on the Agricultural Ecosystem Services (AgES) watershed model

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Author(s):
Patrícia Porta Nova da Cruz [1] ; Timothy R. Green [2] ; Ricardo de Oliveira Figueiredo [3] ; Anderson Soares Pereira [4] ; Holm Kipka [5] ; Sandra Isay Saad [6] ; Jonathan Mota da Silva [7] ; Marco Antonio Ferreira Gomes [8]
Total Authors: 8
Affiliation:
[1] Empresa Brasileira de Pesquisa Agropecuária - Brasil
[2] United States Department of Agriculture. Water Management and Systems Research Unit - Estados Unidos
[3] Empresa Brasileira de Pesquisa Agropecuária - Brasil
[4] Empresa Brasileira de Pesquisa Agropecuária - Brasil
[5] Colorado State University. Department of Civil & Environmental Engineering - Estados Unidos
[6] Universidade de São Paulo. Instituto de Energia e Ambiente - Brasil
[7] Universidade de São Paulo. Instituto de Astronomia, Geofísica e Ciências Atmosféricas - Brasil
[8] Empresa Brasileira de Pesquisa Agropecuária - Brasil
Total Affiliations: 8
Document type: Journal article
Source: Rev. Ambient. Água; v. 12, n. 3, p. 351-364, 2017-05-00.
Abstract

Abstract Southeastern Brazil has recently experienced drought conditions that have impacted watershed conservation and the management of water quality and quantity for agricultural and urban demands. The Ribeirão das Posses watershed is being monitored as a headwater of the Jaguarí River, which is one of the contributing rivers of the Cantareira Reservoir Complex in the state of São Paulo. The landscape has changed over the last century from native forests to more homogeneous vegetation for pastures, crops and some forest plantations of eucalyptus, which have cumulative impacts on water yield and quality. Currently, the Projeto Conservador das Águas (Water Conservationist Project) has planted small areas with native species vegetation in order to recover degraded areas. The objective of this study was to evaluate the quantity of water in the Ribeirão das Posses Basin by both measurements and by simulating hydrological responses. The Agricultural Ecosystem Services (AgES) watershed model was applied to simulate water movement and storage among land areas. The simulation period was from 2009 to 2014, because the daily streamflow and meteorological data were available for model calibration and testing. We discuss data input requirements, model calibration to fit measured streamflow, and sensitivity to spatially variable rainfall inputs. The calibrated model may be used to estimate streamflow during periods of missing data, and in the future to estimate impacts of land use changes on stream water quantity and quality. Such information can be used in programs of payments for ecosystem services. (AU)

FAPESP's process: 16/02890-1 - Impact of climate change on the hidrobiogeochemistry of two small tributary watersheds to Cantareira System in an area attended by a program of payment for environmental services
Grantee:Ricardo de Oliveira Figueiredo
Support Opportunities: Research Program on Global Climate Change - Regular Grants