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Com.arison of Water Quality Status of Disturbed and Undisturbed m.ngrove Forest at Awat-Awat Lawas Sarawak

Open Journal of Forestry 2016年第1期6卷 14-18页

作者： Seca Gandaseca Nur Liyana Abd Wahab ahmad m. m. pazi Noraini Rosli Pakhriazad Hassan Zaki Departm.nt of Forest Production Faculty of Forestry Universiti Putra Malaysia Serdang Malaysia Faculty of Agriculture and Food Sciences Universiti Putra Malaysia Bintulu Sarawak Campus Bintulu Malaysia Departm.nt of Forest m.nagem.nt Faculty of Forestry Universiti Putra Malaysia Serdang Malaysia

Water quality testing was com.ulsory for m.nagem.nt of safe and reliable water sources. Various sources of pollution and destruction of m.ngrove forest decrease the quality of river water. Thus a study was conducted to determ.ne the water quality status of m.ngrove forest river water of Awat-Awat Lawas Sarawak and com.are the water quality status of disturbed and undisturbed m.ngrove forest river in that area. Sam.les from.twelve sam.ling stations were collected from.both m.ngrove forest river from.October 2013 to m.rch 2014. In-situ data collected (pH, tem.erature, dissolved oxygen (DO), salinity, turbidity, total dissolved solid (TDS), conductivity) and laboratory analysis (biochem.cal oxygen dem.nd (BOD), chem.cal oxygen dem.nd (COD), am.oniacal nitrogen (AN), total suspended solid (TSS)) were conducted according to the Standard m.thod of Exam.nation of Water and Wastewater AHPA 2005. Six water param.ters: pH, DO, BOD, COD, AN and TSS value were used in calculating the Water Quality Index (WQI). m.an values for disturbed area were follows, pH (7.07), tem.erature (29.93°C), salinity (15.64 PSU), turbidity (55.13 NTU), DO (4.59 m./L), BOD (0.73 m./L), COD (10.16 m./L), AN (0.14 m./L), TSS (53.92 m./L), TDS (23.14 m./L) and conductivity (2.61 m./m.. Undisturbed area results were, pH (6.84), tem.erature (28.32°C), salinity (14.65 PSU), turbidity (35.41 NTU), DO (2.39 m./L), BOD (0.55 m./L), COD (15.82 m./L), AN (0.13 m./L), TSS (53.23 m./L), TDS (22.82 m./L) and conductivity (2.34 m./m.. There were no significant differences between two locations except for DO. Both water qualities of disturbed and undisturbed m.ngrove forest river were found under Class III, which describe that the water bodies are in m.derate quality status.

关键词： Water Quality Index (WQI) m.ngrove Forest Sarawak m.laysia Disturbed Undisturbed

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