Sharip Zati, Zaki Ahmad Taqiyuddin Ahmad
Lake Research Unit, Research Centre for Water Quality and Environment, National Hydraulic Research Institute of Malaysia (NAHRIM), Ministry of Natural Resources and Environment, Malaysia, Lot 5377, Seri Kembangan, Selangor, Malaysia,
Environ Monit Assess. 2014 Aug;186(8):4959-69. doi: 10.1007/s10661-014-3751-4. Epub 2014 Apr 3.
Thermal structure and water quality in a large and shallow lake in Malaysia were studied between January 2012 and June 2013 in order to understand variations in relation to water level fluctuations and in-stream mining activities. Environmental variables, namely temperature, turbidity, dissolved oxygen, pH, electrical conductivity, chlorophyll-A and transparency, were measured using a multi-parameter probe and a Secchi disk. Measurements of environmental variables were performed at 0.1 m intervals from the surface to the bottom of the lake during the dry and wet seasons. High water level and strong solar radiation increased temperature stratification. River discharges during the wet season, and unsustainable sand mining activities led to an increased turbidity exceeding 100 NTU, and reduced transparency, which changed the temperature variation and subsequently altered the water quality pattern.
2012年1月至2013年6月期间，对马来西亚一个大型浅水湖的热结构和水质进行了研究，以了解与水位波动和河道采矿活动相关的变化。使用多参数探头和塞氏盘测量了环境变量，即温度、浊度、溶解氧、pH值、电导率、叶绿素A和透明度。在旱季和雨季，从湖面到湖底每隔0.1米测量一次环境变量。高水位和强烈的太阳辐射增加了温度分层。雨季的河流流量以及不可持续的采砂活动导致浊度增加超过100 NTU，并降低了透明度，这改变了温度变化，随后改变了水质模式。
