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Physical limnology of a typical subtropical reservoir in south China

机译：物理湖沼学的一个典型的亚热带水库在中国南方

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摘要

Liuxihe Reservoir (23°45'50"N; 113°46'52"E) is a valley-type subtropical reservoir in south China. The reservoir behaves as a warm monomictic water body that is stratified throughout the year except for a short mixing period in winter. During stratification, vertical circulation was very weak and the hypolimnion was anoxic. The metalimnion range and thermocline location were affected significantly by the outlet height. Spatial and temporal variations in turbidity indicate that suspended matter was predominantly clay minerals with low organic contents. The behavior of turbid currents entering the reservoir was determined by density differences between inflow and impounded water. Because of particle size, shape of suspended matter, and weak vertical circulation, the suspended matter persisted in the water column for months. The water clarity of the lacustrine zone was affected significantly by water level variation, which is considered a comprehensive effect of stratification, resuspension, landforms, and hydrologic condition of the reservoir. Management recommendations on withdrawal selection and water level regulation are proposed to improve water quality.
机译：Liuxihe水库(23°45 50 N;在中国南方valley-type亚热带水库。水库的行为作为一个温暖monomictic水身体是分层除了冬天混合周期短。在分层、垂直循环很弱的深水层是缺氧。斜温层和温跃层的位置范围出口影响显著的高度。时空浊度的变化表明,悬浮物主要粘土矿物较低的有机内容。浑浊的水流进入的行为储层是由密度差异流入和积滞水之间。粒子大小、形状的悬浮物弱的垂直循环,悬浮物坚持在水柱数月。水清澈的湖泊区受到影响水位变化显著,认为是一个综合的影响分层,再悬浮、地形和水库的水文条件。建议取消选择和水水平调节提出了改善水质量。

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