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A conservação de bacias e os desafios para a sustentabilidade da agricultura. Infoteca-e
FIGUEIREDO, R. de O.; GREEN, T. R..
Resumo: Esta publicação aborda a complexidade e os desafios para que se alcance a sustentabilidade no uso da terra, no tocante à conservação dos recursos hídricos e respectivas bacias hidrográficas. Trata da dinâmica de alterações nos processos biogeoquímicos e hidrológicos presentes nas bacias onde o ecossistema natural é modificado. Considera, também, as variações temporais e espaciais distintas, dependendo das características biofísicas e biogeoquímicas originais da bacia, ao lado do uso da terra presente. Os autores abordam como e porque a bacia hidrográfica deve ser considerada a unidade de estudo primordial nas análises ambientais que visam a conservação de recursos hídricos. São, assim, considerados os processos naturais, o manejo agropecuário, a...
Tipo: Documentos (INFOTECA-E) Palavras-chave: Sustentabilidade ambiental; Bacia Hidrográfica; Uso da Terra; Qualidade da Água; Agricultural watersheds; Watersheds; Land use; Land use change; Water quality.
Ano: 2019 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1112886
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Hydrobiogeochemistry of two catchments in Brazil under forest recovery in an Environmental Services Payment program. Repositório Alice
FIGUEIREDO, R. de O.; SIMIOLI, M. M.; JESUS, T. V. U. C.; CRUZ, P. P. N. da; SILVA, G. B. S. da; NOGUEIRA, S. F.; GREEN, T. R.; CAMARGO, P. B. de.
Abstract: We investigated the fluvial geochemistry of two catchments at different stages in the forest recovery process which have been a focus of an Environmental Services Payment (ESP) program in Brazil. The Posses (PS) and Salto de Cima (SC) catchments (1200 ha and 1500 ha, respectively) are situated in the municipality of Extrema, Minas Gerais state. Their streams flow into the Jaguari River that supplies part of the water demand of the São Paulo metropolitan area. Samples were collected for chemical analysis and physical-chemical field measures every 2 weeks from January to December 2017. An important pollution point source was discovered in the PS stream related to bovine urine and feces, as well another unidentified source that can be related to a...
Tipo: Artigo de periódico Palavras-chave: Biogeochemical cycling; Bacia Hidrográfica; Córrego; Poluição da Água; Reflorestamento; Proteção Ambiental; Qualidade da Água; Ecosystem services; Watershed management; Watershed hydrology; Water pollution; Water quality analysis; Land use change; Water resources.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1128011
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Hydrological modeling of the Ribeirão das Posses: an assessment based on the Agricultural Ecosystem Services (AgES) watershed model. Repositório Alice
CRUZ, P. P. N.; GREEN, T. R.; FIGUEIREDO, R. de O.; PEREIRA, A. S.; KIPKA, H.; SAAD, S. I.; SILVA, J. M. da; GOMES, M. A. F..
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...
Tipo: Separatas Palavras-chave: Watershed model; Hidrological models; Watershed.; Clima; Hidrologia; Bacia hidrográfica; Ecosystem services; Water conservation; Climate..
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1073489
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Influence of land use on the hydrobiogeochemistry of the Camanducaia and Jaguari watersheds, Brazil. Repositório Alice
COSTA, C. F. G.; FIGUEIREDO, R. de O.; CAMARGO, P. B. de; PICCOLO, M. C.; MAZZI, E. A.; REIS, L. C.; ZUCCARI, M. L.; GREEN, T. R.; FERRACINI, V. L..
Two medium-sized watersheds of the Piracicaba river basin, the Camanducaia and Jaguari subbasins,are being studied to evaluate the effects of land use change on the basin?s hydrobiogeochemistry. The Jaguari basin is an important provider the Cantareira reservoir system that supplies around six million inhabitants of the Metropolitan Region of São Paulo, Brazil. A one-year hydrological study began on January 2015 to monitor some water quality parameters such as pH, electric conductivity (EC), dissolved oxygen (DO), dissolved organic and inorganic carbon (DOC and DIC), nitrate (NO ), ammonium (NH ) and total nitrogen (TN). For that purpose we established 19 sampling stations along the Camanducaia (8 stations) and Jaguari (11 stations) river channels; two...
Tipo: Separatas Palavras-chave: Watershed.; Land use..
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1037597
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Integration of distributed measurements and simulations to explore spatial complexity in a field-scale agricultural watershed. Repositório Alice
GREEN, T. R.; ERSKINE, R. H.; KIPKA, H.; LIGHTHART, N.; EDMUNDS, D. A.; McMASTER, G. S.; DAVID, O.; CRUZ, P. P. N. da; FIGUEIREDO, R. de O..
Long-term measurements of high-resolution soil moisture across rolling terrain facilitate complex simulations of surface hydrology and soil moisture dynamics. Soil hydraulic properties that control water storage flow rates can vary markedly in space, and surface layers may vary temporally due to management events, reconsolidation and biological activity. Field measurements are expensive to collect and generally reveal complex variability that is difficult to fully characterize. Yet, these soil properties are represented using model parameters that may strongly affect simulated flows and the distribution of soil water in space and time. Thus model calibration using available measurements of soil moisture and surface runoff is essential. Here, we address the...
Tipo: Separatas Palavras-chave: Hidrologia; Bacia Hidrográfica; Solo; Watersheds; Soil.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1116366
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Land use effects on quality and quantity aspects of water resources in headwater areas of the Jaguari River Basin. Repositório Alice
CAMARGO, P. B. de; FIGUEIREDO, R. de O.; PICCOLO, M. C.; ZUCCARI, M. L.; FERRACINI, V. L.; CRUZ, P. P. N.; GREEN, T. R.; COSTA, C. F. G.; REIS, L. C..
In the context of the recent drought conditions in southeastern Brazil, EMBRAPA (Brazilian Agricultural Research Corporation) in partnership with two Brazilian universities (USP/CENA and UNIFAL) planned a research project, called BaCaJa, to understand the hydrobiogeochemistry processes that occur in small catchments (<1,000 ha) at the upper portions of the Jaguari River Basin situated on both states of Sao Paulo and Minas Gerais. The approach of this study is based on the fact that the evaluation of stream water quality and quantity is an efficient tool to characterize the sustainability of the agriculture production at a catchment level. Its goal is, therefore, to survey the land use effects on the hydrobiogeochemistry in headwaters areas of the...
Tipo: Separatas Palavras-chave: Água; Land use.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1037613
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Land use effects on the ecohydrology in headwater areas of the Jaguari river basin. Repositório Alice
FIGUEIREDO, R. de O.; PEREIRA, A. S.; COSTA, C. F. G.; TORRESAN, F. E.; LEIVAS, J. F.; FILIZOLA, H. F.; SONODA, K. C.; REIS, L. C.; SOUZA, M. D. de; GOMES, M. A. F.; ZUCCARI, M. L.; SILVA, M. S. G. M. e; PICCOLO, M. C.; TANK, M.; CRUZ, P. P. N.; PAMPLIN, P. A. Z.; CAMARGO, P. B. de; BOEIRA, R. C.; BARIZON, R. R. M.; PEREIRA, S. E. M.; PAZIANOTTO, R. A. A.; GREEN, T. R.; FERRACINI, V. L..
The headwaters of the Jaguari river basin are strategically important to the water resources in the largest reservoir system of the São Paulo state, called ?Cantareira?, which has recently suffered the largest water crisis in its history. Investigation at small watershed scales is a valuable tool to understand land-water interactions and their associated hvdrological processes. Our research approach included evaluations of streamwater uality and quantity, aquatic biota, overland flow, solls, land use, and land management As part of the region is under a conservation program of payment for environmental services (PES),we also examine the efficiency of this public policy. In addition, our study could help guide the agricultural management of rural...
Tipo: Separatas Palavras-chave: Agricultural watershed; Hydrobiogeochemistry; Water crisis.; Ecosystem services; Reforestation; Water conservation..
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1078102
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Responses of water resources to land and soil management in a tropical small watershed under a Payment for Environmental Services public policy. Repositório Alice
FIGUEIREDO, R. de O.; GREEN, T. R.; GONÇALVES, A. O.; SIMIOLI, M. M.; JESUS, T. V. U. C.; CRUZ, P. P. N. da; REIS, L. C.; PICCOLO, M. C.; CAMARGO, P. B. de.
The 12-km2 Ribeirão das Posses Watershed (RPW), which is dominated by Ultisols and Inceptisols, is located in the south of Minas Gerais, Brazil. RPW discharges into the Jaguarí River, one of the most contributing rivers to supply the São Paulo metropolitan area. Over the last century in this watershed, the land use changed from native forests to more homogeneous vegetation for pastures, crops and forest plantations of eucalyptus, which have cumulative impacts on water yield and quality. To address this, a public policy was adopted establishing the Payment for Environmental Services covering three small watersheds of this river basin, including RPW. Since 2004, under such initiative, some small areas with vegetation of native species have been planted,...
Tipo: Separatas Palavras-chave: Biogeochemical; Small catchments; Serviços ambientais.; Ecosystem services; Water quality..
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103520
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Stream water quality in the context of payments for environmental services in Southeastern Brazil. Repositório Alice
REIS, L. C.; FIGUEIREDO, R. de O.; PICCOLO, M. C.; CAMARGO, P. B. de; COSTA, C. F. G.; ZUCCARI, M. L.; GREEN, T. R..
Public policy of payment for environmental services (PES) was established in 2007 to face the challenge of recuperatingwater resources at one of the headwater areas of the Jaguari River Basin, which supplies an important reservoir for the metropolitan region of São Paulo, Brazil. Such effort consists of reforestation of riparian zones and spring lands at the hills of selected catchments, including the Ribeirão das Posses (RP) catchment. Since 2012 the University of São Paulo has developed research at RP to monitor the benefits of these practices on stream water quality, and identified a few parameters as good indicators to follow up the results of this PES program. The present study has the objective to show results of the monthly monitoring in...
Tipo: Separatas Palavras-chave: Água; Ecosystem services.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1037580
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Stream water quality monitoring as a tool to evaluate a payment for environmental service in Extrema (Minas Gerais), Brazil. Repositório Alice
FIGUEIREDO, R. de O.; SIMIOLI, M. M.; CRUZ, P. P. N. da; GREEN, T. R..
Posses and Salto de Cima small catchments (1,200 ha and 1,500 ha, respectively) are situated in the municipality of Extrema (MG), southeast Brazil. Their stream outlets enter into the Jaguari River, an important tributary to the Cantareira Reservoir, which supplies part of the water demand of the São Paulo metropolitan area. These catchments, with pastures as the dominant land use, have been targets of a payment for environmental service program that aims to face successive water deficit that has occurred in the region. Possible improvement of water resources has been investigated by this present hydrobiogeochemical study. Evaluations included the temporal variation of water quality parameters as well as a comparison of two monitored streams in relation to...
Tipo: Separatas Palavras-chave: Small catchments; Hydrobiogeochemistry; Pastures; Reforestation; Watershed management.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103536
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The Agricultural Ecosystems Services (AgES) watershed model is used to estimate the spatial complexity of soil hydraulic properties in a field-scale agricultural watershed, Colorado, USA. Repositório Alice
GREEN, T. R.; ERSKINE, R. H; DAVID, O.; KIPKA, H.; LIGHTHART, N.; McMASTER, G. S.; CRUZ, P. P. N. da; FIGUEIREDO, R. de O..
Soil hydraulic properties that control water storage flow rates can vary markedly in space, and surface layers may vary temporally due to management events, reconsolidation and biological activity. Field measurements are expensive to collect and generally reveal complex variability that is difficult to fully characterize. Yet, these soil properties are represented using model parameters that may strongly affect simulated flows and the distribution of soil water in space and time. Thus model calibration using available measurements of soil moisture and surface runoff is essential. Here, we address the level of calibration detail needed to estimate available data by using five levels of spatial complexity in the calibrated soil parameters. Results are also...
Tipo: Separatas Palavras-chave: Spatial variability; Agricultural watershed; Temporal dynamics.; Soil hydraulic properties..
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103538
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Utilização dos modelos AgES-W e SWAT para quantificação dos recursos hídricos na Bacia do Ribeirão das Posses, Extrema, MG. Repositório Alice
CRUZ, P. P. N. da; FIGUEIREDO, R. de O.; GREEN, T. R..
Resumo: O sudeste do Brasil atravessou um período de seca que afetou a gestão da qualidade e quantidade da água de bacias hidrográficas tanto para as demandas agrícolas como para as urbanas. Neste contexto, ferramentas de modelagem agro-hidrológicas podem gerar informações da resposta hídrica ao longo do tempo frente às mudanças climáticas e de uso da terra. Uma bacia de drenagem de 12 km2, que tem sofrido com atividades antrópicas é a microbacia do Ribeirão das Posses, localizada no extremo sul do Estado de Minas Gerais, cujas áreas de nascentes contribuem para o Rio Jaguari e para o Sistema Cantareira, principal reservatório no estado de São Paulo. Atualmente, o Projeto Conservador das Águas recuperou pequenas áreas com vegetação de espécies nativas,...
Tipo: Separatas Palavras-chave: Quantidade de água; Modelo hidrológico; Swat; Ages-W; Minas Gerais.; Uso da Terra.; Hydrologic models; Watersheds; Land use.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1064641
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Water quality-quantity evaluation of the Ribeirão das Posses Watershed, Brazil, applying the AgES-W model. Repositório Alice
CRUZ, P. P. N.; FIGUEIREDO, R. de O.; GREEN, T. R..
Southeastern Brazil is under a period of drought that has impacted the conservation of watersheds and the management of water quality and quantity for agricultural and urban demands. In this context agro-hydrological modeling tools can generate information of water response over time in response to climate and landuse changes. A 12-km2 watershed which has suffered from anthropogenic activities is the Ribeirão das Posses watershed that is located in the extreme south of Minas Gerais State and is a headwater catchment of the Jaguari river, one of the contributing rivers of the Cantareira Reservoir Complex in the state of São Paulo. This watershed had its landscape changed over the last century from native forests to more homogeneous vegetation for pastures...
Tipo: Separatas Palavras-chave: Watershed.; Água.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1037591
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