The Variation of Water Quality in Three Land Use Types in U Minh Ha National Park, Ca Mau Province, Vietnam Using Multivariate Statistical Approaches

This study was conducted to assess the water quality affected by different land use patterns in U Minh Ha National Park, Ca Mau, Vietnam. determined characteristics three types (Acacia hybrid, planted melaleuca cajuputi, and natural cajuputi) at plant ages on two acid sulfate soil layers rainy season (8/2018) dry (4/2019) using nine parameters. Multivariate statistical analyses were applied evaluate correlation spatial temporal variations quality. The results showed that S-ASS more polluted than D-ASS, characterized low pH; EC, organic matters (BOD COD), nutrients (N-NH4+ N-NO3−), metal ions (Al3+ Fe3+) high; BOD, COD, Al3+, N-NO3− high D-ASS. NMC area noted have concentrations of nutrients, while factors specific acidic found be higher AH PMC areas. tended season. cluster analysis grouped D-ASS both seasons into four groups, with a clear similarity between wet areas various ages. seasonal distinguished main parameters, including pH, N-NO3−, Al3+ (S-ASS) N-NH4+, Fe3+ (D-ASS). Therefore, there is need for better management measures focus key parameters causing each area. findings this provided important information future monitoring agricultural production conservation national park.