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標題: 農田土壤鉛、鎘、銅、鋅重金屬污染累積潛勢之電磁物理輔助指標之建立
The Establishment of Electromagnetic Physics Auxiliary Indices for the Accumulating Potential of Lead, Cadmium, Copper and Zinc Heavy Metal Contaminants in Farmland Soils
作者: 張家銘
關鍵字: 水土資源保育, 農業化學類;應用研究

The solute accumulating potential and water infiltration rate in soils are the major two factors controlling the transport and fate of contaminants during environmental processes. In order to expeditiously obtain a general picture regarding these two factors spanned over numerous kinds of soils, it is quite necessary to establish a generalized model to examine the characteristics of a variety of soil-types in community. For this purpose, previous developments in the predicting models using readily-to-be-measured basic physico-chemical properties of soils as principal parameters have been widely used for determining laboriously-to-be-measured soil characteristics, such as soil hydraulic conductivity assessments. However, the goodness-of-fit in these modeling results are usually not satisfied extensively in all objectives. This study attempts to establish a novel and efficient procedure by incorporating the soil magnetization curve measurements to ameliorate the conventional predicting models. In comparison with the previous results merely using basic physico-chemical properties (soil pH, texture, organic matter content, bulk density), or further employing the soil electrical conductance as supplementary parameters, an evident improvement in our new predicting models for the accumulating potential of lead (Pb), cadmium (Cd), copper (Cu) and zinc (Zn) assisted with the physically magnetic parameters of soils (low-field magnetic susceptibility, high-field magnetic susceptibility, saturated magnetization) will be performed.
其他識別: 91農科-1.4.3-糧-Z1(3)
Appears in Collections:研究計畫報告

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