2020-01-302024-05-14https://scholars.lib.ntu.edu.tw/handle/123456789/658669摘要：造成水田中土壤重金屬累積因子相當多，包括：灌溉引水、大氣落塵、肥料使用等所造成。國際上，許多研究團隊已針對水田中各種重金屬之傳輸宿命進行研析，但國內仍鮮少有研究針對水田重金屬累積進行系統性之分析。本計畫規劃於桃園區域選定代表性已復育完成之水稻田至少兩處，並針對其中銅金屬之濃度、分佈及傳輸宿命等議題進行研析，主要研究目標包括：針對水田中關鍵生物環境系統介面（例如：水、土壤、及作物）進行現地採樣，分析其內所含銅金屬之濃度與型態；考量物理/化學/生物性因子，建立銅金屬質量平衡模式，進行銅金屬物質流動態分析；推估水田土壤重金屬累積超標年限，研擬相關改善策略及短/中/長程行動方案。本研究將針對水田中關鍵生物環境系統介面進行概況調查及現地採樣，分析其內所含銅金屬之濃度與型態，包括：灌溉水、表層土壤、作物（含根系）、肥料使用、大氣落塵等；另一方面，根據水田中土壤重金屬質量平衡模式結果，推估水田土壤重金屬累積超標年限，並定期召開專家諮詢會議（規劃召開兩場次），邀請相關利益關係者，以研擬相關改善策略及短/中/長程行動方案。<br> Abstract: A number of factors, such as irrigation water, atmospheric deposition, and fertilizers, would result in the accumulation of heavy metals in paddy soils. Although extensive studies on this issue around the world have been carried out, little-to-none study is focused on the systematic analysis of the accumulations of heavy metals in paddy soils in Taiwan. This project will select at least two remediated sites of paddy at Taoyuan region, and evaluate the concentration, distribution and fate of copper in paddy soil. The main objectives of this project include field sampling of key bioenvironmental factors (e.g., water, soil and plant) and determination of the concentrations and types of copper in paddy; establishment of mass balance models of copper by considering physical, chemical and biological factors, and analysis of copper flow and dynamics; estimate of the minimum length of year that the accumulated concentration of copper exceeds the relevant regulations, and provision of the improvement strategies and short-term, mid-term and long-term action plans. This project will take samples from the key bioenvironmental interfaces, such as irrigation water, soils, plants (including root), fertilizers, and atmospheric deposition, to identify the types and concentrations of copper species, and then establish a mass balance model of copper in paddy soils. Based on the results of the mass balance of copper in soils, this project will invite the stakeholders and organize two Ad-Hoc committee meetings to propose the relevant strategies and action plans, in terms of short-term, mid-term and long-term.累積銅桃園物質流改善策略AccumulationCopperTaoyuanMaterials FlowImprovement Strategies