2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/26/2021 | 8:30 AM - 10:30 AM | HOW RESTORED RIPARIAN FOREST CAN ATTENUATE SEDIMENT EXPORT FROM CATCHMENTS UNDER FOREST PLANTATION MANAGEMENT? | Virtual Platform
HOW RESTORED RIPARIAN FOREST CAN ATTENUATE SEDIMENT EXPORT FROM CATCHMENTS UNDER FOREST PLANTATION MANAGEMENT?
Forest operations can alter physical, chemical and biological attributes of streams that consequently, interfere in the ecological processes of the aquatic ecosystem. The objective of this study was to assess forest operations effects on sediment export according to management intensity and riparian condition in subtropical Brazil. Three catchments, with different management systems, were evaluated: eucalyptus forest plantation (EUC), native forest plantation (NAT), and mosaic of forests plantation (MOS), in southeastern Brazil. The sediment export was estimated through a relationship between turbidity and suspended sediment concentration. The results showed that sediment export ranged from 0.032 Mg ha?1 yr?1 to 0.411 Mg ha?1 yr?1. Regarding riparian attenuation effect, two aspects should be considered. 1) the condition of riparian forest since degraded or initial stage forests maybe not function properly to protect soils; 2) the riparian forest proportion should be not enough to attenuate large managed areas. We propose that the ratio of managed area by riparian area (M/R) may explain sediment export. Taking as example the studied catchments, we could recommend M/R < 4, with riparian areas occupying at least 20% of catchments, what is usual at certified forest plantations in Brazil.
- Tropical streams and lakes
- Restoration
- Landscape
Presentation:
This presentation has not yet been uploaded.
Handouts:
Handout is not Available
Transcripts:
CART transcripts are NOT YET available, but will be posted shortly after the conference
Presenters/Authors
Matheus Ogasawara
(), University of São Paulo, matheus.ogasawara@usp.br;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Gláucia Regina Santos
(), University of São Paulo “Luiz de Queiroz” College of Agriculture (ESALQ/USP), glauciaflorestal@usp.br;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Carla Cassiano
(), Federal University of Mato Grosso, carlacassiano.ufmt@gmail.com;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Beverley Wemple
(), University of Vermont, beverley.wemple@uvm.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Silvio Ferraz
(), University of São Paulo, USP/ESALQ, Dept of Forest Sciences, Brazil, silvio.ferraz@usp.br;
ASHA DISCLOSURE:
Financial -
Nonfinancial -