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  1. Mohd Khairul Amri Kamarudin, Mohd Ekhwan Toriman, Hafizan Juahir, Azman Azid, Muhammad Barzani Gasim, Roslan Umar, et al.
    MyJurnal
    The hydrology hydraulic model is established to assess environmental information on hydrology which
    can be used to investigate causes of various environmental problems at the river and natural lake
    catchment. This study reports on sediment concentrations at a river using a gravimetric method to
    investigate the hydrology system at a lake catchment. The measurement was carried out at the
    upstream, midstream, and downstream stations on the river in normal, rainy and post-rainy seasons.
    The stations are located along the Chini River, which are connected to a catchment lake (located at
    latitude 3°26’36.41”E-3°27’03.26”E and longitude 102°54’31.94”N-102°53’35.49”N). From the
    measurements, it is estimated that on average 787.621 tonne/km2 of sediment is transferred into the
    natural lake via Chini River annually. The correlation of statistical analysis between the sediment load
    and discharge study was very significant (R2 = 0.980). There is a linear relation between the area of
    the catchment and sediment load of the connecting river as supported by other studies in Malaysia.
    The outcome of the study suggests that the high sedimentation is due to land use activity, existence of
    the dam at the downstream of Chini River that traps the sediment, reverse flow from the Pahang River
    into Chini River and riverbank erosion factors. From this study, the sediment control steps are
    suggested such as creating conservation partially at the lake catchment, modifying the dam system,
    riverbank erosion control, and application of “Monkey Cheek” system. These sediment control steps
    may help to clean up the high suspended sediment at the whole lake system area, hence solving and
    mitigating the environmental problems in the natural lake catchment.
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