Land leveling impact on surface runoff and soil losses: Estimation with coupled deterministic/stochastic models for a Québec agricultural field
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- 作者：Patrick Gagnon ; pgagnon@cdpq.ca ; patrick.gagnon@agr.gc.ca ; Franç ; ois Chré ; tien francois.chretien@agr.gc.ca ; Georges Thé ; riault georges.theriault@agr.gc.ca
- 关键词：Land leveling ; Runoff ; Peak flow ; Suspended sediment load ; Adaptive Metropolis-Hastings
- 刊名：Journal of Hydrology
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：544
- 期：Complete
- 页码：488-499
- 全文大小：1703 K
- 卷排序：544
文摘
Impact of land leveling was evaluated at the edge-of-field of a Québec field. Metropolis algorithm was coupled with deterministic models to quantify uncertainty. Land leveling reduced runoff, but did not reduce peak flow for convective events. Suspended sediment load increased about 100 times just after land leveling. Suspended sediment load increase remained statistically significant after one year.