Effects of long-term mixed land use of human settlement and oil palm plantation on the groundwater quality of ex-promontory land

Othman, SitiZulaikha; Hashim, Roslan; FaizalTajulBaharuddin, Mohamad; Mohamad, Sharifah

doi:10.9790/2402-08730109

Cited by 1 publication

(1 citation statement)

References 17 publications

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“…This finding was supported by Gharibreza et al (2013) suggesting increased levels of nitrogen than natural forested content in Lake Bera catchment area that may result from the utilization of fertilizer by rubber and oil palm plantations. Over the years, nitrogen based fertilizer has been commonly used in the plantation to maximize productivity (Zin and Tramizi, 2007;Othman et al, 2014). The build up of nitrogen in agricultural soil was more easily leached away by rainwater into the aquatic system than most other essential elements (Vitousek et al, 2002;Khan et al, 2007).…”

Section: Spatial and Temporal Variation Of Water Qualitymentioning

confidence: 99%

Assessment of Spatial Variability and Temporal Dynamics of Dissolved Organic Matter (DOM) at Lower Kinabatangan River Catchment, Sabah.

Murdin¹

2019

JTBC

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The spatial and temporal variability of dissolved organic matter (DOM) characteristics and surface water quality in the Lower Kinabatangan River Catchment were determined between October 2015 and May 2016. The objectives of this study were: (i) to distinguish the DOM absorption characteristics and physicochemical quality of surface water draining from different types of land use: oil palm plantation (OP), secondary forest (SF) and semi-natural vegetation (SV); and to examine its temporal variations during dry and wet periods. The collected physicochemical parameters data was analysed and classified based on the Malaysian National Water Quality Standard (NWQS). Findings indicated all the parameters fall into Class I, except for pH, total suspended solids (TSS) and concentration dissolved oxygen (DO). Linear discriminant analysis has been applied to distinguished the physico-chemical and absorption DOM properties data into mutually-exclusive spatial and temporal groups. Interestingly, the pH, DO and total nitrogen values were exhibited as dominant parameters at SV during both low and high rainfall periods. The dominance of these parameters suggested that the spatially and temporally varied water quality were influenced by both natural processes (e.g precipitation rate) and anthropogenic factor (e.g land use change). Whereas, both absorption coefficients (a340) and spectral slope (S275-295) were more dominant at SF and OP respectively. This might be due to increasing terrestrial DOM loadings as well as significant degradation of DOM via microbial and/or photochemical reaction.

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Section: Spatial and Temporal Variation Of Water Qualitymentioning

confidence: 99%

Assessment of Spatial Variability and Temporal Dynamics of Dissolved Organic Matter (DOM) at Lower Kinabatangan River Catchment, Sabah.

Murdin¹

2019

JTBC

View full text Add to dashboard Cite

show abstract

Effects of long-term mixed land use of human settlement and oil palm plantation on the groundwater quality of ex-promontory land

Abstract: This paper focused on the quality of groundwater at the ex-promontory-land of Carey

Cited by 1 publication

References 17 publications

Assessment of Spatial Variability and Temporal Dynamics of Dissolved Organic Matter (DOM) at Lower Kinabatangan River Catchment, Sabah.

Assessment of Spatial Variability and Temporal Dynamics of Dissolved Organic Matter (DOM) at Lower Kinabatangan River Catchment, Sabah.

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