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Estimation of Water Quality Parameters and Wetland Evolution by Remote Sensing for the Lake Wuliangsuhai

Author: LuoQiang
Tutor: LiChangYou
School: Inner Mongolia Agricultural University
Course: Hydrology and Water Resources
Keywords: Lake Wuliangsuhai Water quality parameters Wetland Changes Remote sensing technology Inversion
CLC: X524
Type: Master's thesis
Year: 2011
Downloads: 136
Quote: 1
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Abstract


Lake Wuliangsuhai are suffering from salinization pollution , heavy metal pollution , organic pollution , water ecological environment of the area of ??atrophy , reduced water eutrophication and ecosystem destruction , eutrophication and algae bloom \For more than environmental issues on the basis of the results of previous studies , the introduction of \ArcGIS geostatistical analysis module of the the common interpolation model interpolation accuracy comparison , IDW interpolation results appear more serious \high accuracy , and ultimately selected Kriging interpolation model interpolation of water quality parameters . The results show that : the indicators the Lake Wuliangsuhai in water eutrophication , organic pollution indicators , indicators of the spatial distribution of salinity have significant spatial variability ; quantitative statistics of various water quality parameters exceeded the area . According to the Lake Wuliangsuhai measured remote sensing spectral characteristics , determine the sensitive bands of lake water quality indicators , chlorophyll a concentration of the measured spectra of single-band and band combination of remote sensing quantitative estimation model ; Landsat series data , extract the reflectivity of the monitoring points , combined with ground measured water quality data over the years , to establish the model of remote sensing of chlorophyll a, TP, transparency , and the inversion effect test ; based on remote sensing quantitative evaluation of the Lake Wuliangsuhai nutritional status of the water body status quo . Driving factor in the use of satellite remote sensing images and conventional survey analysis methods to identify the process of lakes and swamps by the hydrological conditions of distribution of aquatic plants , water quality , sediment deposition is the area of ??atrophy mainly in the West Bank and northern lakes small Lake area , the bottom of the lake is a speed of 6-9 mm / year elevation, Phragmites communis advancing to the lake from the shore , and intensified the process of lakes and swamps .

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CLC: > Environmental science, safety science > Environmental pollution and its prevention > Water pollution and its control > Lakes and reservoirs
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