| Summary: | 碩士 === 東海大學 === 環境科學與工程學系 === 105 === With the booming economic development, focusing turns from agriculture to business. The conflict between agriculture and business cause insufficient demands for land. There is a trend that factories located nearby agricultural area even creating serious environmental pollution. Factories have discharged wastewater, disposed solid waste, and indefinite farm drainage system. Under these reasons impel soil pollution toward the main source.
Therefore, it is necessary to understand Taiwan soil situation with heavy metal contamination in the past and nowadays. Recently, the Environment Protection Department (EPA) investigated that the most serious pollutant soil with heavy metal were Changhua and Taoyuan.Undoubtedly, we should take highly attention on environmental problem caused by soil pollution. In this study, we use agricultural land as the main receptor to preliminary analysis the relevant on heavy metals in irrigation system and agricultural space. Adding pollutant transmission concept and establishing spatial systems dynamics to simulate the multi-media transport as well as concentration change of heavy metals in water, soil and plant. On the other hand, evaluating how the parameters affect the heavy metal transport in the model by uncertainty analysis.
According to the results show that the simulated values of Cr concentration in farmland was lower than actual values. In addition, "Plant-soil bioconcentration factor", "The final infiltration capacity", and "Concentration of waste water" are important parameters affecting the transportation of Cr concentration.
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