本研究於2017年6~9月利用國立屏東科技大學水土保持系戶外教室之坡地芒果園，觀測集水面積約為0.3 ha之試驗樣區，於山邊溝處理下配合全園覆蓋處理下於暴雨後之地表逕流量變化，進而探討坡地果園山邊溝於植生覆蓋後與地表裸露時比較其減緩逕流之差異。研究結果顯示：實測逕流係數最低為0.01，最高為0.85，皆在水土保持技術規範之丘陵地開發整地後參考值0.9之範圍內，顯示坡地果園山邊溝於覆蓋良好情況下，其地表逕流能夠有效地被減少。

This study focused on the runoff discharge variation after storm events and setting hillside ditch with cover treatment for a slopeland mango orchard, which is located at the outdoor classroom of soil and water conservation, National Pingtung University of Science and Technology. The plot area was 0.3 hectare, and all the runoff observation was conducted from June to September , 2017. Furthermore, the benefits of delayed runoff after construction of hillside ditch in slopeland orchard. The results had summarized as: the measured runoff coefficient is at least 0.01 and the highest is 0.85, both within the range of 0.9 after the land preparation and development of the hills in the soil and water conservation technical specifications, it had shown the slopeland orchard with hillside ditch and full cover would reduce runoff effectively.