查詢結果分析
來源資料
頁籤選單縮合
題 名 | 集水區流量面積比之研究=Study on Watershed Discharge-area Ratio |
---|---|
作 者 | 黃宏斌; | 書刊名 | 農業工程學報 |
卷 期 | 47:3 2001.09[民90.09] |
頁 次 | 頁42-49 |
分類號 | 443 |
關鍵詞 | 流量面積比; 形狀因子; 集水區; Discharge-area ratio; Form factor; Watershed; |
語 文 | 中文(Chinese) |
中文摘要 | 為了瞭解集水區流量面積比之特性,本研究針對其相關之形狀因子、坡度、面積、集流時間和降雨強度比值等參數一一加以探討,得到在相同集水區面積時,集流時間比與其變化率會隨其相應形狀因子之增加而減少。相反地,降雨強度比值會隨其相應形狀因子之增加而增加,增加率也越來越小。同一形狀因子時,低集流時間之降雨強度比值會較高集流時間者大,且其變化率較小。另外,年平均雨量較大之雨量站,在降雨強度比值和形狀因子之關係中,會呈現和低集流時間者相同之趨勢。而且,蘭陽溪上游10個小集水區之流量面積比與其面積成反比;坡度和形狀因子成正比。 |
英文摘要 | In order to explore the characteristic of watershed discharge-area ratio, this study analyzed its relative variables of form factor, slope, area, concentration time and rainfall intensity ratio, respectively and got the following results. For the same watershed area, concentration time and its changing rate decreased with increasing form factor. Contrarily, rainfall intensity ratio increased with form factor but its changing rate decreased. With the same form factor, rainfall intensity ratio of lower concentration time was larger than that of higher one, but the changing rate of lower concentration time was smaller. Besides, rainfall station with higher annual average amount had the same tendency of lower concentration time in the relationship of rainfall intensity ratio and form factor. Moreover, from ten small watersheds in upstream Lanyang Creek, their discharge-area ratio was proportional to its area inversely while to its slope and form factor positively. |
本系統中英文摘要資訊取自各篇刊載內容。