Next Article in Journal
Urban Public Health: Is There a Pyramid?
Next Article in Special Issue
An Upscaling Method for Cover-Management Factor and Its Application in the Loess Plateau of China
Previous Article in Journal
Short-Term Effects of Gaseous Pollutants and Particulate Matter on Daily Hospital Admissions for Cardio-Cerebrovascular Disease in Lanzhou: Evidence from a Heavily Polluted City in China
Previous Article in Special Issue
Ecological Risk Assessment of Land Use Change in the Poyang Lake Eco-economic Zone, China
Article

Identifying the Relationships between Water Quality and Land Cover Changes in the Tseng-Wen Reservoir Watershed of Taiwan

Department of Geomatics, National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2013, 10(2), 478-489; https://doi.org/10.3390/ijerph10020478
Received: 22 September 2012 / Revised: 31 December 2012 / Accepted: 21 January 2013 / Published: 28 January 2013
The effects on water quality of land use and land cover changes, which are associated with human activities and natural factors, are poorly identified. Fine resolution satellite imagery provides opportunities for land cover monitoring and assessment. The multiple satellite images after typhoon events collected from 2001 to 2010 covering land areas and land cover conditions are evaluated by the Normalized Difference Vegetation Index (NDVI). The relationship between land cover and observed water quality, such as suspended solids (SS) and nitrate-nitrogens (NO3-N), are explored in the study area. Results show that the long-term variations in water quality are explained by NDVI data in the reservoir buffer zones. Suspended solid and nitrate concentrations are related to average NDVI values on multiple spatial scales. Annual NO3-N concentrations are positively correlated with an average NDVI with a 1 km reservoir buffer area, and the SS after typhoon events associated with landslides are negatively correlated with the average NDVI in the entire watershed. This study provides an approach for assessing the influences of land cover on variations in water quality. View Full-Text
Keywords: remote sensing; NDVI; water quality; land cover change; regression remote sensing; NDVI; water quality; land cover change; regression
Show Figures

Figure 1

MDPI and ACS Style

Chu, H.-J.; Liu, C.-Y.; Wang, C.-K. Identifying the Relationships between Water Quality and Land Cover Changes in the Tseng-Wen Reservoir Watershed of Taiwan. Int. J. Environ. Res. Public Health 2013, 10, 478-489. https://doi.org/10.3390/ijerph10020478

AMA Style

Chu H-J, Liu C-Y, Wang C-K. Identifying the Relationships between Water Quality and Land Cover Changes in the Tseng-Wen Reservoir Watershed of Taiwan. International Journal of Environmental Research and Public Health. 2013; 10(2):478-489. https://doi.org/10.3390/ijerph10020478

Chicago/Turabian Style

Chu, Hone-Jay, Chun-Yu Liu, and Chi-Kuei Wang. 2013. "Identifying the Relationships between Water Quality and Land Cover Changes in the Tseng-Wen Reservoir Watershed of Taiwan" International Journal of Environmental Research and Public Health 10, no. 2: 478-489. https://doi.org/10.3390/ijerph10020478

Find Other Styles

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop