查詢結果分析
相關文獻
- 以布袋蓮累積移除二重疏洪區沼澤濕地重金屬之研究
- 有機肥料中重金屬含量調查及對作物生長影響之評估
- Heavy Metals Contents of Representative Agricultural Soils in Taiwan
- 以感應耦合電漿原子發射光譜儀檢測中藥重金屬含量之研究
- 中藥製劑基準方重金屬限量規格制訂之研究
- Effects of Copper, Zinc, Nickel, Chromium and Lead on the Growth of Water Convolvulus in Water Culture
- 中藥濃縮製劑重金屬品質調查
- Veritcal Distributions of Cadmium, Copper, Nickel and Zinc in the Western Philippine Sea and Comparison with Data from Other Parts of the Pacific Ocean
- 利用原子吸收光譜儀以校正曲線法及標準添加法檢測礦物性中藥的鉛、鎘、銅及鎳重金屬含量
- Accumclations of Heavy Metals in Fish
頁籤選單縮合
題名 | 以布袋蓮累積移除二重疏洪區沼澤濕地重金屬之研究=Using Water Hyacinth to Phytoaccumulate the Heavy Metals in Erh-Chung Flooding Plain |
---|---|
作者 | 廖少威; 張文亮; Liao, Shao-wei; Chang, Wen-liang; |
期刊 | 農業工程學報 |
出版日期 | 20000900 |
卷期 | 46:3 2000.09[民89.09] |
頁次 | 頁37-48 |
分類號 | 351.68、351.68 |
語文 | chi |
關鍵詞 | 布袋蓮; 濕地; 鎘; 鉛; 銅; 鋅; 鎳; 生物濃縮因子; 移動能力; Water hyacinth; Wetland; Cadmium; Lead; Copper; Zinc; Nickel; Bioconcentration factor; Translocation ability; |
中文摘要 | 運用濕地植物光合淨化功能(Phytoremediation)以吸收微量元素已成功運用於自然或人工濕地。本研究以浮水性植物布袋蓮(Eichhornia crassipes)為例,說明其對五種微量元素:鎘、鉛、銅、鋅、鎳;於莖葉部及根部兩不同部位在田間的累積吸收情形。比較出五種重金屬在布袋蓮組織內之移動能力(translocation ability),發現其移動能力為鋅>鎳≒鎘>鉛>銅。又布袋蓮對不同微量元素,當外部環境含低濃度微量元素時生物濃縮效應達最高,而後隨外部含量的增加而減少。生物濃縮因子於水域環境:銅(2864)>鉛(2245)>鋅(1328)>鎘(1027)>鎳(611);於底泥環境除銅外濃縮效應都不好。布袋蓮根部組織累積微量元素之量遠高於莖葉部之量,平均約為莖葉部的3~15倍左右。根部組織累積微量元素高低依次為銅>鋅>鎳>鉛>鎘。布袋蓮對銅、鉛、鋅、鎘可說是一良好的植物淨化體。並估算出二重疏洪區沼澤濕地每公頃布袋蓮可去除之微量元素量為:鎘0.24 kg、鉛5.42 kg、銅21.62 kg、鋅26.17 kg、鎳13.46 kg。 |
英文摘要 | Wetland plants have proven effective for the phytoremediation of trace elements in natural and constructed wetlands. This study demonstrates the potential of water hyacinth (Eichhornia crassipes), an aquatic floating plant, for the phytoremediation of five trace elements Cd, Pb, Cu, Zn, and Ni. The ability of water hyacinth to take up and translocate in roots and in shoots with five trace elements was studied by field sampling. Translocation abilities of these five elements can be expressed by the root/shoot ratio of element concentration, and they are in the order of Zn>Ni≒Cd>Pb>Cu. Water hyacinth had high trace element bioconcentration factors when supplied with low external concentrations of all five elements, results shows that Cu (2864)>Pb (2245)>Zn (1328)>Cd (1027)>Ni (611) in aquatic environment, and in sediment environment except copper the bioconcentration factor was low. Generally the element contents in root tissue were 3-15 times higher than those in the shoots. The accumulation of root tissue were in the order of Cu>Zn>Ni>Pb>Cd. We conclude that water hyacinth is a promising candidate for phytoremediation of wastewater polluted by Cu, Pb, Zn, and Cd. After calculation, we found the absorption rate in natural wetlands were 0.24 kg/ha in Cadmium, 5.42 kg/ha in Lead, 21.62 kg/ha in Copper, 26.17 kg/ha in Zinc, and 13.46 kg/ha in Nickel. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。