頁籤選單縮合
題 名 | 集水區坡地經營改變之水質污染效益評估=An Economic Benefit Evaluation of Water Pollution on Shifting Management of Watershed Hillslope |
---|---|
作 者 | 李國忠; 盧英秀; | 書刊名 | 中華林學季刊 |
卷 期 | 31:1=120 1998.03[民87.03] |
頁 次 | 頁65-77 |
分類號 | 445.212 |
關鍵詞 | 外部性; 水質; 土地使用; 優養化; Eternality; Water quality; Land use; Well-nourished; |
語 文 | 中文(Chinese) |
中文摘要 | 山坡地農作墾植施用肥料與農藥之殘留量大都隨地表逕流過程影響水體,農藥、 肥料的流失是造成非點污染源的來源之一。以翡翠水庫集水區為個案研究,使用類似合理化 公式推估單位面積土地利用污染負荷水體水質之影響,將茶園改變土地利用形態為林地時, 每年可減少TN 32.59 kg/ha、TP 23.62 kg/ha、BOD 71.25kg/ha、及SS 1267.43 kg/ha;果園改 變土地利用形態為林地時,則每年可減少TN 6.35 kg/ha、TP 5.88kg/ha、BOD 42.49kg/ha、 及SS 1841.06kg/ha。集水區內將茶園改變土地利用為林地時,所增加的邊際效益 NT$17540.0/100m 。將果園改變土地利用為林地時,所增加的邊際效益 NT$25607.6/100m 。 |
英文摘要 | Residues of fertilizers and pesticides in water of cultured hillslope is one of the sources of non-point pollution. Those residues are usually carried by pass of surface run-off under improper hillslope exploration. This paper estimates pollutants changed by changing the land usage type of forest instead of improper crops with the similar-rational formula. Results indicate that, forest instead of tea garden, the pollutants decreased yearly as following: TN 32.59 kg/ha, TP 23.62 kg/ha, BOD 71.25kg/ha, and SS 1367.43 kg/ha; by forest instead of fruit garden, the results are: TN 6.35 kg/ha, TP 5.88kg/ha, BOD 42.49kg/ha, and SS 1841.06kg/ha. The marginal benefits of water quality improvement from tea and fruit garden to forest are NT$17540.0/100m dollars and NT$25607.6/100m dollars. |
本系統中英文摘要資訊取自各篇刊載內容。