茶園茶樹剷除前後農藥於環境中之殘存與流布

Distribution of Pesticide Residues in Tea Garden Before and After Tea Trees Eliminated

蕭郁樺(Yu-Hua Hsia) ； 黃玉如(Yu-Ju Huan) ； 吳昀軒(Yun-Hsuan Wu) ； 陳炳勝(Bing-Sheng Chen) ； 劉建良(Chien-Liang Liu) ； 顏瑞泓(Jui-Hung Yen)

《臺灣農業化學與食品科學》 53卷5期 (2015/10) Pp. 225-233

https://doi.org/10.6578/TJACFS.2015.024

摘要

為瞭解臺大實驗林目前混林農業對農林範圍內的農藥流布情況及對環境之衝擊，本試驗針對混農林範圍定點採集土壤及植體進行農藥殘留分析，以作為未來混農林之作物選擇、施藥或耕作方式之參考。本次試驗地為內埔21林班合造100-20號林地，此試驗地原植茶樹，但於2011年由臺大實驗林收回準備造林。樣品共分三次採集，第一次採樣為茶作剷除前，採集了土壤、茶樹及周圍雜草，測定茶園土壤及植體的農藥殘留，第二次採樣為茶作區剷除後，採集剷除區及周圍雜木林之土壤，第三次採樣在原茶作區已種植蔬菜，因此採集了土壤、蔬菜及周圍雜草檢驗農藥殘留。試驗結果顯示，在混農林業經營下，在農業耕作時所施用的農藥，確實會影響農地周圍植物，尤其是可在周圍植物體樣品中發現各種農藥的殘留，在農耕區之作物剷除後，土壤中仍然測得多種農藥的殘留，且農作區旁的雜木林也會受到影響。因此，需進一步的探討在混農林經營時農藥在不同農耕系統下的流布情形及農藥殘留對土壤生態的影響。

關鍵字

混農林業 ； 農藥殘留 ； 茶園

並列摘要

In this study, we aimed to understand the impact of mixed farming and forestry on the forest ecology by detecting the pesticide residues in a farm, which is or was a tea garden. Samples were taken in three specific periods of time. The first batch samples, including tea leaves and herbs surrounding the tea garden, were taken during tea plant cultivation. The second batch samples were taken after tea plants were eliminated. The third batch samples were taken after vegetables were planted at the same sites. The pesticide residues in these samples were analyzed. The results showed that pesticides used in tea garden could be detected in surrounding forests. Moreover, the pesticides could be detected both in the tea garden and forest soil after tea plants were eliminated for more than 3 months. Further study will be conducted to investigate the pesticide distortion in the mixed farming and forestry ecosystem.

並列關鍵字

Mixed farming and forestry ； Pesticide residue ； Tea garden