頁籤選單縮合
題名 | 蘭陽平原海岸地區養蝦池對地下水質主要成分之影響 |
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作者 | 江漢全; | 書刊名 | 農業工程學報 |
卷期 | 40:2 1994.06[民83.06] |
頁次 | 頁58-68 |
分類號 | 443.67 |
關鍵詞 | 地下水質; 主要成分; 養蝦池; 海岸地區; Groundwater quality; Principal component; Shrimp pond; Coastal area; |
語文 | 中文(Chinese) |
中文摘要 | 鹹水養蝦魚塭分佈地區,地下水質鹽化的情形已在蘭陽平原沿海地區發生,鹽化原因可能包含養蝦池水鹽分滲透抑或海水入侵。以養蝦魚塭區之上游對照井及區內鹽分污染井之水質主要成分分析統計,污染井可由Piper氏水質結構圖及Collin氏柱狀圖加以明顯區隔。另選擇電導度值、氯鹽、氯鹽/碳酸鹽類比、SAR等常用之鹽與非飽和層中發生之鹽類溶解及鹽基置換等作用有關。進一步探討魚塭底質剖面分析及受污染土柱淋洗試驗之結果,顯示養蝦池鹽水之滲漏,應為蘭陽平原沿海地區地下水質鹽化之主要原因之一。 |
英文摘要 | The problem of groundwater with high salinity in the region under brackish water cultivation was found in coastal area of Lan-Yang Plain. The source of higher degree of salt in groundwater may be resulted from seawater intrusion or brackish water infiltration. The field investigation on groundwater quality was carried out by sampling the wells located at upgradient and inside of the aquacultural region. The results of chemical analysis for groundwater samples are calculated by "principal components" statistical method. The identification of contaminated wells can be attained by Piper's diagram or Collin's bar graph. The indicators such as E.C., Chloride, [C1]/[CO₃+HCO₃]and SAR also are used to evaluate the characteristics of groundwater quality. The high SAR value in upgradient wells maybe seem as a result of the salt dissolution and base exchange in unsaturated zone. Furthermore, the results of analysis for samples of soil profiles under shrimp pond bottom and leaching experiment for the polluted soil column show that brackish water infiltration is one of the most important sources of salinity in groundwater in coastal area of Lan-Yang Plain. |
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