The investigation of Agricultural Non-Point Source Pollution Model(AGNPS) for Predicting Sediment Yield in Slopeland Development.

• Main Authors: Ho Yi Jiuan, 何宜娟
• Other Authors: L.L.Lin
• Format: Others
• Language: zh-TW
• Published: 2000
• Online Access: http://ndltd.ncl.edu.tw/handle/50473432416559036008

碩士 === 國立中興大學 === 水土保持學系 === 88 === The Agricultural Non-Point Source Pollution Model (AGNPS) was applied to predict the soil erosion and sediment yield before, during, and after slopeland development in Sanyi experiment area. The predicted values were compared with the values predicted by Universal Soil Loss Equation (USLE). The results indicate that the soil erosion predicted by AGNPS is much less than the values predicted by USLE. The ratio is 1:3.54 to 1:4.81. The measured sediment yields were also compared with the predicted values. The results show that sediment yields are over-estimated during the developing period. Different unit cell area was used in AGNPS to simulate the sediment yield on slopeland. The results indicate that the sediment yields decrease with the increase of unit cell area, but the difference is not much.