| Abstract |
| To predict the pollutant load from non-point source of agriculture basin, AGricultural Non-Point Source(AGNPS) was applied for small river of Gaeun Chun located at Sangju city. The applied basin area had the cultivation area of about 41% such as rice paddy field, patch, and orchard and the forest area of 58.7%. Observed peak flow rate during July to September 2002 were 0.026㎥/sec∼9.265㎥/sec for P-1, 0.01 O㎥/sec∼2.747㎥/sec for P-2 and 0.064㎥/sec∼13.482㎥/sec for P-3. The concentration of total nitrogen(T-N) and total phosphorus(T-P) were 2.80∼10.70㎎/L and 0.25∼1.84㎎/L for P-1, 2.70∼8.90㎎/L and 0.27∼1.9l㎎/L for P-2, and 2.80-9.70㎎/L and 0.25∼1.79㎎/L for P-3, respectively, which indicated the small river was considerably affected by non-point source. The simulation results of the AGNPS were given in the correlation equations from the observed and calculated values as follows: TNc= 1.3885 TNo^(0.7864)(R2=0.894) and TPc=1.2399 TPo^(0.9459) (R2=0.794). |
|
|
| Key Words |
| Non-point source, AGNPS, applied basin area, peak flow rate, T-N, T-P |
|
|
|
|
|
PDF