ISSN:
1573-5117
Keywords:
PAR
;
bauxite tailing
;
turbidity
;
floodplain lake
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The PAR attenuation in Batata Lake, an Amazonian crystalline system subject to the effect of bauxite mining, was increased through dumping of tailing by 35% during low periods in impacted areas. Subsequently, the euphotic zone was reduced by 1 meter and phytoplankton production decreased by 60%. The tailing, which are frequently resuspended and transported into non-impacted areas by currents, and remain in suspension as small particles (〉50% of frequency distribution), thereby increasing inorganic turbidity (〉25 NTU) and PAR scattering. However, during the high water hydrological phase, there was no distinct difference in PAR attenuation between the impacted and non-impacted areas.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1003252805671
Permalink
