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https://ptsldigital.ukm.my/jspui/handle/123456789/499847Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | Sahibin Abd Rahim, Prof. Dr. | |
| dc.contributor.author | Mohammad Zahirul Haque (P69915) | |
| dc.date.accessioned | 2023-10-13T09:35:22Z | - |
| dc.date.available | 2023-10-13T09:35:22Z | - |
| dc.date.issued | 2016-12-10 | |
| dc.identifier.other | ukmvital:84637 | |
| dc.identifier.uri | https://ptsldigital.ukm.my/jspui/handle/123456789/499847 | - |
| dc.description | This study was carried out in order to assess and evaluate the soil erosion rate, the effects of soil erosion on water quality and hydromulch application as an effective controlling measure in the catchment of Universiti Kebangsaan Malaysia (UKM) under Langat river Basin, Malaysia (1138 ha). The empirical models RUSLE and MUSLE were applied to estimate the soil erosion and sediment yield potential. The models predicted average erosion rate 46.93 tons/ha/year and sediment yield 28.78 tons/ha/year respectively. The models were applied in ArcGIS environment. The UKM catchment was classified as very low to very high erosion prone area. Observed sediment yield was also measured from three sub catchments and predicted 27.62 tons/ha/year of sediment yield from the UKM catchment; this result was applied for the validation of MUSLE model. Bathymetry survey was conducted in Tasik UKM (1.76 ha) to measure the sediment deposition and resulted 606.39 tons for the year 2014. Moreover, discharge measurement from a barren plot of 4340.32 m2 showed the TSS concentration of 11.15 g/L with runoff water. To evaluate the effect of soil erosion on water quality a total of thirteen physiochemical water parameters were analyzed. According to the Malaysian national water quality status (NWQS), the present status of water quality indicates that three tributaries in the study area were categorized under WQI III which ranges from 56 to 71. The study recorded high value for DO, TSS, Turbidity, BOD, COD, NH3-N and PO43- which, according to the NWQS indicates the polluted or slightly polluted water. Twenty one heavy metal/trace metals were analyzed by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) (PerkinElmer, Optima 4300, USA). Among those Al, Ba, Ca, Fe, K, Mg, Mn, Na, and Pb were found above NWQS threshold level. Physicochemical properties of soil in the study area were analyzed which resulted soil types are mainly as sandy clay loam, clay loam and clay. Statistical analysis was carried out to investigate the pollution indicator and identify the potential sources of pollutants using multivariate chemometric techniques. The analysis indicates that the parameters responsible for water quality variations are related to physicochemical parameters and nutrients from both nonpoint and point sources. The nonpoint sources include plantation area, weathering of sedimentary rock and natural vegetation and point source is mainly domestic wastewater. Hydromulch prepared by locally available materials (Signal grass, paper mulch, compost and starch) was selected for effective erosion controlling measures. Hydromulch applied in the plot reduced TSS concentration from 11.15 g/ L to 85 mg/ L. TSS concentration also measured from naturally grown Resam, Vetiver and creeper plots resulted 137 mg/ L, 136 mg/L and 136.5 mg/ L respectively. The comparison stated that hydromulch reduced the maximum (99%) TSS/L and demonstrated as an effective controlling measure for soil erosion. Based on this study, comprehensive management strategies could be implemented to anticipate possible future erosion disaster in the catchment.,Certification of Master's/Doctoral Thesis" is not available | |
| dc.language.iso | eng | |
| dc.publisher | UKM, Bangi | |
| dc.relation | Faculty of Science and Technology / Fakulti Sains dan Teknologi | |
| dc.rights | UKM | |
| dc.subject | Soil erosion | |
| dc.subject | Water quality | |
| dc.subject | Langat Sub Basin | |
| dc.subject | Controlling measures | |
| dc.subject | Hydromulch | |
| dc.subject | Dissertations, Academic -- Malaysia | |
| dc.title | An evaluation and controlling measures for soil erosion and water quality in Langat Sub Basin, Malaysia | |
| dc.type | Theses | |
| dc.format.pages | 290 | |
| dc.identifier.barcode | 002540(2017) | |
| Appears in Collections: | Faculty of Science and Technology / Fakulti Sains dan Teknologi | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| ukmvital_84637+SOURCE1+SOURCE1.0.PDF Restricted Access | 358.79 kB | Adobe PDF |  View/Open |
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