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題 名 | 雲林地區水田灌溉水系水中農藥殘留監測=Monitoring of Pesticide Residues in the Irrigation System of Paddy Field in Yunlin Area |
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作 者 | 初建; 林美珠; 黃貞華; 林浩潭; | 書刊名 | 植物保護學會會刊 |
卷 期 | 49:3 2007.09[民96.09] |
頁 次 | 頁245-257 |
分類號 | 433.85 |
關鍵詞 | 農藥; 殺草劑; 灌溉水; 水田; 殘留; Pesticide; Herbicide; Irrigation water; Paddy field; Residue; |
語 文 | 中文(Chinese) |
中文摘要 | 在94年一期稻作與二期稻作生長時期,監測雲林地區灌溉水系中農藥殘留情況,結果顯示主要檢出藥劑種類與檢出頻率以殺草劑丁基拉草(3.85%;檢出範圍 ND-0.08 μg/l)最高,其次為殺菌劑亞賜圃(3.21%;檢出範圍 ND-0.64 μg/l )與殺蟲劑陶斯松(2.35%;檢出範圍 ND-0.03 μg/l)。一期稻作生長期間,灌溉水系中藥劑檢出高峰期發生在5至6月份,檢出藥劑與水稻栽培期間使用藥劑相吻合。在二期稻作耕作期間,灌溉水樣檢出農藥比率比一期稻作減少很多,此現象與二期作水稻休耕或轉作有關。殘留藥劑大部份屬於中度至極具環境殘效性藥劑,灌溉水系檢出農藥殘留區域主要發生在水稻耕作區域,在監測期間所採集之天然河水樣品中,並未檢出農藥殘留,故水稻現行耕作模式下,應不至於對天然河川產生污染。 |
英文摘要 | Pesticides used for paddy rice protection may contaminated, by run off or over flow of field water, the irrigation systems after being applied to the fields. Therefore, it is necessary to monitor the pesticides in the irrigation systems for the purpose of environmental protection. The pesticide residues in the irrigation systems of Yunlin area was monitored during the rice growing period in 2005. Herbicide butachlor (3.85%, ranged from ND to 0.08 μg/L) is the highest concentration and frequency detected in the water, followed by fungicide isoprothiolane (3.21%, ranging from ND to 0.32 μg/L) and insecticide chlorpyrifos (2.35%, ranging from ND to 0.03 μg/L ). Pesticides from irrigation water were detected on May to June when spring rice was growing. The pesticides detected were in accordance with the pesticides used for rice protection. However, the detected frequency of pesticides in water was decreased during the autumn crop periods. This result was related to the field fallowing or rotation of paddy rice with upland corps. Most pesticides found in the water have the properties of moderately to very persistent in the environment. No pesticide residues were detected in the natural water samples collected from the source of irrigation water or in the samples collected from the end of the water systems. |
本系統中英文摘要資訊取自各篇刊載內容。