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首页> 外文会议>International Drainage Symposium >Hydrologic Modelling of an Agricultural Drained Micro-Watershed: Performance Analysis of Coupled Surface Water/Groundwater Models
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Hydrologic Modelling of an Agricultural Drained Micro-Watershed: Performance Analysis of Coupled Surface Water/Groundwater Models

机译：农业排水微流域的水文建模：耦合表面水/地下水模型的性能分析

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摘要

The objective of this study is to quantitatively assess the impact of subsurface drainage and soil properties on the hydrological behaviour of a headwater micro-watershed located in the Bras d'Henri watershed, Quebec (Canada). The studied 2.4-km2 micro-watershed is characterized by intensive livestock production supported by forages and annual crops such^s corn grain or soybeans. It is one of Agriculture and Agri-Food Canada's WEBs watersheds (Water Evaluation of Beneficial management practices). Hydrometeorological monitoring has shown that soil properties and subsurface drainage could negatively affect the expected behaviour of beneficial management practices at the watershed scale. Therefore there is a need to understand the influence of these properties on hydrology and one way to study this problem is to set up a physically-based hydrological modelling investigation. Specifically, this project focuses on evaluating the ability of two or three coupled hydrological models (surface flow/subsurface flow) to simulate flows at the micro-watershed outlet and water table depth fluctuations while quantifying the surface and subsurface contributions to flows. The models under consideration are: CATHY (Camporese et al., 2010), DRAINMOD (Skaggs, 1978) and PESTDRAIN (Branger et al. 2009).
机译：这项研究的目的是定量评估的坐落在布拉多尔亨利一个源头小流域水文行为的地下排水和土壤性质的影响分水岭，魁北克省（加拿大）。所研究的2.4平方公里微分水岭的特征在于由牧草和一年生作物，例如，3S玉米粒或大豆支持密集牲畜生产。这是加拿大农业及农业食品部的腹板流域（的有益的管理实践水资源评价）之一。水文气象监测表明，土壤性质和地下排水造成负面在流域尺度的有益的管理实践的预期行为的影响。因此有必要了解水文和研究这个问题的途径之一，这些性能的影响是建立基于物理的水文模拟研究。具体而言，该项目的重点评估的两个或三个耦合水文模型来模拟的能力（表面流/潜流），而定量到流动的表面和表面下的贡献在微流域出口和水表深度的波动流动。正在审议的车型有：CATHY，DRAINMOD（Skaggs的，1978年）和PESTDRAIN（Branger等2009）（Camporese等，2010）。

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