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題名 | 1996年賀伯颱風期間福山試驗林溪流水化學變化之研究=Changes in Streamwater Chemistry of Fushan Experimental Forest during 1996 Typhoon Herb Event |
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作者 | 王立志; 鄧子菁; 夏禹九; 金恆鑣; 劉瓊霦; 林登秋; Wang, Lih-jih; Teng, Tzu-ching; Hsia, Yue-joe; King, Hen-biau; Liou, Chon-bin; Lin, Teng-chiu; |
期刊 | 中華林學季刊 |
出版日期 | 19990600 |
卷期 | 32:2=125 1999.06[民88.06] |
頁次 | 頁217-232 |
分類號 | 436.19 |
語文 | chi |
關鍵詞 | 賀伯颱風; 溪水化學; 福山; Typhoon Herb; Streamwater chemistry; Fushan; |
中文摘要 | 1996年賀伯颱風(Typhoon Herb, 7/30~8/6)為近6年(1993~1998)來影響台灣及福山試 驗林最大的颱風之一。本研究目的主要在探討賀伯期間,福山試驗林溪水化學變化及水文歷 線成份區分。賀伯颱風期間福山累積雨量為775mm,分別於l號與2號溪流中形成口2192.2 及7368.3LPS之最大流量。賀伯颱風期間,福山溪水化學變化可歸納為下列三種形式(1))濃 度降低現象:即濃度隨著流量升高而下降,如電導度,pH、Cg□、Mg□、Na□、Cl□、SO□、 HCO□等等。(2)濃度升高現象:即化學濃度隨著流量的上升而升高,如懸浮質、K□、NH□□與 No□等等。(3)無明顯變化的趨勢:如溶解性總磷。此些水質變化顯示1996年賀伯颱風期間, 福山兩溪水溶質化學主要受到近地表逕流(“新”水)與深層逕流(“舊”水)的相互混合 所致。而運用雙組成水文歷線成份分離結果亦相對顯示賀伯颱風期間水文過程中以近地表逕 流(“新”水)貢獻為主。 |
英文摘要 | Typhoon Herb (07/30~08/06) in 1996 was the most influential typhoon event on Taiwan, as well as on Fushan Experimental Forest in 6 years (1993~1998). Hydrological monitoring and streamwater collecting system was set up to study changes in streamwater chemistry of Fushan Experimental Forest during 1996 Typhoon Herb event. Total rainfall of 775 mm was recorded in Fushan, which peaked the flow rate to 2192.2 LPS in FS-1 (38 ha), and 7368.3 LPS in FS-2 (94 ha) experimental watersheds. Conductivity, pH, Na□, Ca□, Mg□, Cl□, SO□ and HCO□ in streamwater exhibited decreases in concentrations with increasing flow. Suspended solids, K□, NH□ and NO□ showed increases with increasing flow. While total dissolved P showed no obvious trend with changing flow rate. These solute behaviors suggested that stormwater chemistry was controlled by the relative mixing of near-surface flow and deep flow during typhoon Herb in these watersheds. An attempt was made to separate storm hydrograph by using electronic conductivity as the tracer. This 2-component separation result showed that the contribution of near-surface flow ("new" water) to the total streamflow was higher than deep flow ("old" water) during this typhoon. These relative changes of near-surface flow ("new" water) and deep flow ("old" water) could also help explain the phenomenon of solute changes in Fushan watersheds during typhoon Herb. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。