https://scholars.lib.ntu.edu.tw/handle/123456789/365468
標題: | Applying factor analysis combined with kriging and information entropy theory for mapping and evaluating the stability of groundwater quality variation in Taiwan | 作者: | Shyu, G.-S. Cheng, B.-Y. Chiang, C.-T. Yao, P.-H. TSUN-KUO CHANG |
關鍵字: | Factor analysis; GIS; Groundwater; Information entropy theory; Kriging | 公開日期: | 2011 | 卷: | 8 | 期: | 4 | 起(迄)頁: | 1084-1109 | 來源出版物: | International Journal of Environmental Research and Public Health | 摘要: | In Taiwan many factors, whether geological parent materials, human activities, and climate change, can affect the groundwater quality and its stability. This work combines factor analysis and kriging with information entropy theory to interpret the stability of groundwater quality variation in Taiwan between 2005 and 2007. Groundwater quality demonstrated apparent differences between the northern and southern areas of Taiwan when divided by the Wu River. Approximately 52% of the monitoring wells in southern Taiwan suffered from progressing seawater intrusion, causing unstable groundwater quality. Industrial and livestock wastewaters also polluted 59.6% of the monitoring wells, resulting in elevated EC and TOC concentrations in the groundwater. In northern Taiwan, domestic wastewaters polluted city groundwater, resulting in higher NH3-N concentration and groundwater quality instability was apparent among 10.3% of the monitoring wells. The method proposed in this study for analyzing groundwater quality inspects common stability factors, identifies potential areas influenced by common factors, and assists in elevating and reinforcing information in support of an overall groundwater management strategy. © 2011 by the authors. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-79953845546&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/365468 |
DOI: | 10.3390/ijerph8041084 | SDG/關鍵字: | ammonia; ground water; article; cluster analysis; controlled study; entropy; factorial analysis; geographic distribution; geographic information system; industrial waste; information processing; information science; kriging; livestock; salinity; Taiwan; water analysis; water management; water pollution; water quality; water sampling; water temperature |
顯示於: | 生物環境系統工程學系 |
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2011-Applying Factor Analysis Combined with Kriging.pdf | 1.87 MB | Adobe PDF | 檢視/開啟 |
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