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Reduction of Nutrient Contents by Harvesting Natural Wetland Vegetations

Supiah Shamsudin, and Mohd Azraai Kassim, and Johan Sohaili, (2004) Reduction of Nutrient Contents by Harvesting Natural Wetland Vegetations. Malaysian Journal of Civil Engineering, 16 (2). pp. 28-41.

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Official URL: http://web.utm.my/ipasa/images/stories/MJCE/2004/vol_16_no_2/Reduction%20of%20%20Nutrient%20Contents%20by%20Harvesting%20Natural%20Wetland%20Vegetations.pdf

Affiliations

Universiti Teknologi Malaysia, Faculty of Civil Engineering, Dept. of Hydraulics and Hydrology.
Universiti Teknologi Malaysia. Faculty of Civil Engineering, Dept. of Environment

Abstract

The effects of harvesting wetlands vegetation on nutrient contents entering Layang reservoir, in Masai Johor were investigated. Total Phosphorus (TP), Total Dissolved Phosphorus (TDP) and Nitrate-N levels at the harvesting site, both upper and bottom layers were lower compared to the control site and the inflowing river. The monthly percentage removals of TP, TDP and Nitrate-N fluctuated noticeably, ranging from 20% to 89%. Percentage removals were also higher after harvesting operation compared to before harvest. The percentage removal is highest when the shoots are young.

Kesan penuaian tumbuhan tanah bencah ke atas kemasukan nutrien ke dalam takungan air Layang di Masai, Johor telah dikaji. Paras Jumlah Fosforus (TP), Jumlah Fosforus-Terlarut (TDP) dan Nitrat-N di tapak penuaian, pada kedua-dua lapisan atas dan bawah lebih rendah berbanding tapak kawalan dan sungai. Peratus penyingkiran bulanan juga adalah lebih tinggi selepas penuaian berbanding sebelum penuaian. Peratus penyingkiran paling tinggi berlaku ketika pucuk tumbuhan adalah muda.

Item Type:Journal
Additional Information:I would like to express my appreciation to Research Management Center- Universiti Teknologi Malaysia for the provision of research grant VOT 71489. I appreciate all the help and assistance provided by the technical teams of UTM Environmental Laboratory and Hydraulics and Hydrology Laboratory. Also thanks to Strategi Tegas Sdn. Bhd for giving valuable information and easy access to the site
Keywords:Harvest; Reservoir; Phosphorus; Nitrate-N; Wetlands; Removal Tuai; Takungan Air; Fosforus; Nitrat-N; Tanah Bencah; Penyingkiran
Subjects:T Technology, Engineering
ID Code:6510

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