Springer New York;Berlin/Heidelberg: Springer-Verlag
摘要:
摘要： Aquaculture industries generally extract large amounts of groundwater for the cultivation of fish. To reduce the adverse effects on fish cultivation and groundwater drawdown, this study develops a method that simultaneously considers the spatial variability of groundwater in terms of quality and quantity in order to determine sustainable groundwater use for aquaculture in the Pingtung Plain, Taiwan. Because of limited observation data with high prediction uncertainty, sequential indicator simulation (SIS) was adopted to reproduce the spatial distributions of the main pollutants in groundwater, manganese and ammonium-nitrogen. The corresponding distributions of the groundwater utilization ratio (GUR), which is defined as the ratio showing the volume of groundwater utilization compared to pond water, were determined based on the mass balance of the hydrochemical parameters in the groundwater, surface water, and pond water. Four categories in groundwater utilization—GUR < 0.1 (strictly limited), 0.1 ≦ GUR < 0.5 (minor), 0.5 ≦ GUR < 1 (major), and GUR = 1 (completely used)—were characterized based on estimated probabilities. A safe GUR was selected from a maximum estimation probability of the groundwater categories. SIS was also used to grade the transmissivity fields for gauging the pumping capacity of the aquifers. Finally, for different conditions indicating groundwater quality and quantity, the combinations were delineated spatially to provide decision makers with detailed information which will enable them to wisely select a reliable scheme for groundwater management of fishponds. The analytical results reveal that groundwater can be completely used for fish farming in 6.9 % of aquifers, but should serve as a minor water resource for fishponds in 8.6 % of aquifers. 其他題名： Stoch Environ Res Risk Assess 出版者： Berlin/Heidelberg: Springer-Verlag 出版日期： 2013-08-01 出處： Stochastic environmental research and risk assessment, 2013-08, Vol.27 (6), p.1281-1291 資源來源： Agricultural & Environmental Science Collection 版權： Springer-Verlag Berlin Heidelberg 2012 版權： Springer-Verlag Berlin Heidelberg 2013 識別號： ISSN: 1436-3240 識別號： EISSN: 1436-3259 識別號： DOI: 10.1007/s00477-012-0664-z
