Title

野溪防砂工程功能量化:西南台灣集水區案例分析

Translated Titles

Sediment Trap Quantization Efficiency for Sabo Dams in the Torrents- The Case Studies in Southwest Taiwan

Authors

蔡易達(I-Ta Tsai);連惠邦(Hui-Bang Lien);李仲強(Zhong-Qiang Lee);吳俊鋐(Chun-Hung Wu)

Key Words

防砂工程 ; 防砂功能量化 ; 年計防砂量 ; Sabo dams ; sediment trap quantization efficiency ; annual sediment trap volume

PublicationName

中華水土保持學報

Volume or Term/Year and Month of Publication

48卷2期(2017 / 06 / 01)

Page #

63 - 75

Content Language

繁體中文

Chinese Abstract

本研究以歷年崩塌分布比對、該集水區降雨逕流演算及以多期數值高程模型資料進行地形變遷分析,以量化數據說明該防砂工程對於野溪河道所能提供的防砂功能,包含直接的野溪河道土砂運移減緩及間接的河川底床及兩岸的植生復育效果,以茄苳寮溪集水區、大湖底溪集水區及南沙魯集水區等三個集水區為研究對象,量化說明野溪防砂工程的防砂功能,根據本研究分析結果,各集水區在防砂工程施設後之河岸崩塌縮減率分別為茄苳寮溪集水區之33.3%/年、大湖底溪集水區之11.2%/年及南沙魯集水區之12.1%/年,年計防砂量也分別為茄苳寮溪集水區之1.6 萬m^3/年、大湖底溪集水區之8.1 萬m^3/年及南沙魯集水區之1.17 萬m^3/年。

English Abstract

This study estimates the sediment trap quantization efficiency in the Qietongliao watershed, the Dahudi watershed and the Nansaru watershed. The results of the study show that, the decrease in the landslide ratio after the establishment of sabo dams in the three watersheds is 33.2%/year in the Qietongliao watershed, 11.2%/year in the Dahudi watershed and 12.1%/year in the Nansaru watershed. The annual sediment trap volume is also estimated to be 1.6×104 m^3 in the Qietongliao watershed, 8.1×104 m^3 in the Dahudi watershed and 1.17×104 m3 in the Nansaru watershed.

Topic Category 生物農學 > 農業
生物農學 > 森林
生物農學 > 畜牧
生物農學 > 漁業
生物農學 > 生物環境與多樣性
工程學 > 土木與建築工程
工程學 > 市政與環境工程