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首页> 外文会议>Flood Forecasting and Water Resources Assessment for IAHS(International Association of Hydrological Sciences)-PUB >Effects of Physical Basin Features on Hydrological Responses of the Mekong River
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Effects of Physical Basin Features on Hydrological Responses of the Mekong River

机译：物理盆地特征对湄公河水文响应的影响

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In hydrological modeling, one of the challenges is how to reflect the effects of physical basin features on hydrological responses. This paper focus on investigating the effects of natural and human-made basin changes on hydrological responses for the Mekong River. Effects of land-use changes on hydrological responses of the whole basin are explored. Simulation is carried out by a physically based distributed hydrological model: block-wise use of the TOPMODEL with the Muskingum-Cunge routing method (BTOPMC). Model parameters are identified for each grid by soil type, land-cover and land-use. The whole basin is subdivided into 737 natural sub-basins. Rainfall and discharge datasets of 1980-1982 are used for optimization by the SCE-UA algorithm; datasets of 1985 are used for validation. The results indicate that hydrological responses depend highly on land-use.
机译：在水文模拟中，挑战之一是如何反映盆地物理特征对水文响应的影响。本文重点研究自然和人为盆地变化对湄公河水文响应的影响。探讨了土地利用变化对整个流域水文响应的影响。仿真是通过基于物理的分布式水文模型进行的：将TOPMODEL与Muskingum-Cunge路由方法（BTOPMC）逐块使用。通过土壤类型，土地覆盖和土地利用为每个网格确定模型参数。整个盆地分为737个自然流域。 SCE-UA算法使用1980-1982年的降雨和流量数据集进行优化； 1985年的数据集用于验证。结果表明，水文响应高度依赖于土地利用。

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