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A conceptual model of daily water balance following partial clearing from forest to pasture

机译：从森林到牧场的部分砍伐后每日水平衡的概念模型

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A simple conceptual water balance model representing the streamflowgeneration processes on a daily time step following land use change ispresented. The model consists of five stores: (i) Dry, Wet and SubsurfaceStores for vertical and lateral water flow, (ii) a transient Stream zoneStore (iii) a saturated Goundwater Store. The soil moisture balance in thetop soil Dry and Wet Stores are the most important components of the modeland characterize the dynamically varying saturated areas responsible forsurface runoff, interflow and deep percolation. The Subsurface Storedescribes the unsaturated soil moisture balance, extraction of percolatedwater by vegetation and groundwater recharge. The Groundwater Store controlsthe baseflow to stream (if any) and the groundwater contribution to thestream zone saturated areas. The daily model was developed following adownward approach by analysing data from Ernies (control) and Lemon (53% cleared)catchments in Western Australia and elaborating a monthly model. The dailymodel performed very well in simulating daily flow generation processes forboth catchments. Most of the model parameters were incorporated a priori fromcatchment attributes such as surface slope, soil depth, porosity, streamlength and initial groundwater depth, and some were calibrated by matchingthe observed and predicted hydrographs. The predicted groundwater depth, andstreamflow volumes across all time steps from daily to monthly to annualwere in close agreement with observations for both catchments.
机译：提出了一个简单的概念性水平衡模型，该模型代表了土地利用变化后每天时间流产生的过程。该模型由五个存储组成：（i）用于垂直和横向水流的干，湿和地下存储，（ii）瞬时河带存储（iii）饱和地水存储。该模型最重要的组成部分是表层土壤干湿存储中的土壤水分平衡，它表征了动态变化的饱和区域，这些区域负责地表径流，内流和深层渗流。地下商店描述了非饱和土壤的水分平衡，植被提取的渗滤水和地下水补给。地下水库控制着河流的基流（如果有的话）以及地下水对河流带饱和区的贡献。通过分析来自西澳大利亚州的Ernies（对照）和Lemon（已清除53％）集水区的数据并制定月度模型，我们采用了“向下”方法开发了每日模型。在模拟两个流域的日流量生成过程中，dailymodel都表现出色。大部分模型参数是根据集水区属性（例如地表坡度，土壤深度，孔隙度，水流长度和初始地下水深度）预先合并的，其中一些参数是通过匹配观测到的和预测的水文图进行校准的。从每天到每月到每年的所有时间步长的预测地下水深度和流量与两个集水区的观测值非常一致。

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