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題 名 | 蔗田施用酒精濃醪對地下水、土壤及甘蔗生長之影響=Effects of Concentrated Alcoholic Slops Applied to Cane Field on Groundwater, Soil, and Sugarcane Growth |
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作 者 | 曾景山; 王百祿; 陳健夫; | 書刊名 | 臺灣糖業研究所研究彙報 |
卷 期 | 160 1998.06[民87.06] |
頁 次 | 頁53-68 |
分類號 | 434.717 |
關鍵詞 | 酒精濃醪; 地下水; 甘蔗; 硝態氮; 總有機碳; Concentrated alcoholic slops; Groundwater; Sugarcane; Nitrate-N; Total organic carbon; |
語 文 | 中文(Chinese) |
中文摘要 | 有機廢棄物之資源化再利用,為永續農業重要操作之一。如何使資源化過程中,不致影響環境品質,則為環保人士所關心之課題。本試驗選取富含氮、鉀成份之酒精濃膠,分別施用至粗、中、細三種土壤質地之曾文、東後寮、柳營農場。僅使用化學肥料者,則為對照區。各試區均於上游對照區設置一口監測井,下游處理區設置二口監測井,觀察酒精濃膠施用後,地下水水質之變化。同時,監測土壤導電度(EC)與重金屬含量,並調查甘蔗產量。結果發現﹕地下水之pH值與硝態氮濃度均合乎臺灣地區「地面水體甲類水質標準(pH值為6.6-8.5﹔硝態氮濃度為小於10 mg/L)」﹔EC值則合乎一般灌溉水質標準;各下游井地下水之總有機碳(TOC)含量均合乎臺灣地區之「飲用水水源水質標準(小於4mg/L)」。由土壤EC值得知,連續六年施用酒精濃膠60 t/ha,不會造成作物鹽害問題,重金屬含量也都介於或低於環境背景值。另外,連續六年施用酒精濃膠60 t/ha,亦不會對甘蔗生長造成不利之影響。地下水質之資料亦顯示,長期收集各地區地下水質資料,有助於使用士壤處理有機廢棄物時之參考。 |
英文摘要 | The recycling of organic wastes is a crucial process in sustainable agriculture. Maintaining the environmental quality during recycling is the principal concern of environmental-protection advocates. In this study, concentrated alcoholic slops (CAS), rich in nitrogen and potassium, were applied to cane fields in the Tsengwen, Tunghouliao, and Liuying areas. Soil textures of these cane fields are coarse, medium, and fine, respectively. Application of inorganic fertilizers was the check. Three wells at each cane field were used to monitor the changes in pH, EC, total organic carbon (TOC), nitrate and ammonia. In keeping with the natural direction of groundwater flow, two wells were used to collect downstream water samples, and one well for upstream samples. EC values and heavy-metal concentrations of the soils were monitored, and cane yield was recorded at the same time. Groundwater data showed that both pH values and nitrate concentrations met the first order standard for Taiwan's surface waters (pH: 6.5-8.5; NO--N□<10 mg/L). The EC values were in accord with most standards of irrigation water. TOC contents of groundwater collected from downstream wells complied with the standard for the source of Taiwan's drinking water (less than 4 mg/L). No accumulation of soluble salts and heavy metals was found on soil after 6-year of CAS application to cane fields in the amount of 60 t/ha. Cane yields between, with, and without the use of CAS were all the same. Groundwater data also suggest that long-term monitoring of district ground-water will be a useful index for the application of organic wastes to soils. |
本系統中英文摘要資訊取自各篇刊載內容。