| Summary: | 碩士 === 國立成功大學 === 環境工程學系 === 84 === ABSTRACT
Agricultural non-point source（NPS）pollution is regarded as a
major sourceof large water bodies. Primary NPS pollutants of
concern are those such asnutrients,pestcides,fertilizer,and
sediment that are carried mainly bystormwater runoff from
various land uses.These NPS pollutants may causesignificant
problems to aquatic environments.
In this study, the Agricultural Non-point-Source Pollution Model
（AGNPS）was used to simulate the pollutant load of the unit
area of thesightseeing farm. By testing and verifying the model,
a series of parameters were obtained.Whenwe input the data of
the single event storm in five years from 1991 to 1995.The mean-
year pollutant load was show as follows：
Total rain Total volume Total N Total P COD Sediment
mm m3 kg kg kg kg
average 1,263.6 129,911.7 157.42 31.84 388.78
38,235.9 The average unit pollutant load is list as below：
Total N Total P COD Sediment
kg/ha/yr kg/ha/yr kg/ha/yr kg/ha/yr
5.08 1.03 12.54 1,233.42
By using the relation of runoff depth and the pollutant load，we
was established to calculate the retension proportion in the
various design retension runoff depth.
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