Comprehensive nonpoint source pollution models for a free-range chicken farm in a rural watershed in Taiwan

Chih Sheng Lee, Chih-Hua Chang, Ching Gung Wen, Shui Ping Chang

研究成果: Article同行評審

12 引文 斯高帕斯(Scopus)

摘要

Nonpoint source (NPS) pollution contributed from free-range chicken farms (FRCF) is an important source for total phosphorus loads in rural watersheds of southern Taiwan. The main objective of this study is to quantify the impact of FRCF on water quality parameters. Different models were used; first, a distributed rainfall-runoff model and water quality models were pre-selected. Their relevant parameters were then calibrated and verified based on collected precipitation records, along with runoff and water quality data. Since the raising cycle of the target chicken farm, located at Longchi Township in southern Taiwan, was required for the estimation of NPS loads, three raising cycles per year were used in the case study. By using water quality models together with relevant parameter values, the unit pollution loads per raising cycle during the rainfall period were calculated. The simulated results indicate that the higher the rainfall is, the higher the unit pollution load per raising cycle will be; confirming that the NPS pollution is highly dependent on the change of seasons. The finding clearly indicates that the FRCF exerts high potential threat to reservoir.

原文English
頁(從 - 到)23-32
頁數10
期刊Agriculture, Ecosystems and Environment
139
發行號1-2
DOIs
出版狀態Published - 2010 10月 15

All Science Journal Classification (ASJC) codes

  • 生態學
  • 動物科學與動物學
  • 農學與作物科學

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