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The remote sensing technology could identify the surface features by getting their reflectance spectral characteristics. Because of the different surface properties, nature and content of suspended solids, the characteristics of water bottom and depth of different water bodies, the reflectance spectral characteristics which were received from the transducer showed differences between each other. The...
Four monitoring sections were set up for on-site monitoring at Bailianjing River in the Expo Park during March to October, 2008, monitoring of 5 parameters at 4 different sites. The water quality variations are mainly related to discharge and temperature (natural), organic pollution (point source: domestic wastewater) in Bailianjing River. Water quality comprehensive index, sensory index, sediment...
In the Dabie Mountains of the lower Yangtze basin, China, soil loss reduction has been deemed as important as flood control after the 1998 flood, which caused great damage to the area and its residents. After 2000 year, a project of Reforestation in cultivated land at slope was started. In this study, field observations of water and sediment discharges were carried out on USLE (Universal Soil Loss...
The occurrence of vector-borne West Nile virus in North America has prompted the use of chemical larvicides such as methoprene for widespread urban mosquito control. Since 2003, municipalities in southern Ontario have applied methoprene pellets or ingots to storm water catch basins over the summer. Ryerson University studied the fate and transport of methoprene from a storm sewer system to its receiving...
Determination of optimal sampling transects and pollutants for river sediments are essential and valuable. To determine if the concentration of some metals were highly correlated, correlations between heavy metals (As, Pb, Cd, Cr, Hg, Cu, Ni and Zn) were analyzed using statistic analysis software (SAS) based on monitoring data of heavy metals along the whole watercourse sediments of Dagu River. To...
To uncover the biotic influence of the internal phosphorus release in the sediment of Lake Xuanwu, colony-counting method of flat-panel culture was used to analysis the amount and categories of phosphorus-degrading microorganism. The result showed that there were phosphorus-degrading microorganisms in the sediments of the Lake Xuanwu and most them were inorganic phosphorus-degrading microorganisms,...
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