13.05.2018 Views

merged

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Determination of P, K, Mn, Mg and Ca in decomposition of swamp<br />

vegetation by using ICP-OES<br />

Hafishah Binti Othman<br />

Nuryana Qurratul Ain Bt Yahaya<br />

Supervisor: Dr. Poh Seng Chee<br />

Bachelor of Science (Analytical and Environmental Chemistry)<br />

School of Marine and Environmental Sciences<br />

Universiti Malaysia Terengganu<br />

Decomposition rate of leaf influenced by the concentration of macro- and micronutrients<br />

contained in litter leaf. Therefore, this study was carried out by determine<br />

the concentration of P, K, Mn, Mg and Ca and the comparison with decomposition rate<br />

value in four species of swamp vegetation which are Melaleuca Cajaputi, Alstonia<br />

Spatulata, Macaranga Hypoleuca and Elaeocarpus Mastersii. The result showed that<br />

Alstonia Spatulata has the highest concentration of K(7631mg/kg), Mg(3494mg/kg),<br />

P(2311mg/kg) and Ca(11585mg/kg) while Melaleuca Cajaputi has the lowest<br />

concentration K(1299mg/kg), Mg(1434mg/kg), P(1202mg/kg) and Ca(3215mg/kg).<br />

The concentration of nutrients in each species were increased from day 0 to day 30<br />

and then drastically decreased at day 60 until day 180. Based on result, the most<br />

contribute nutrient for decomposition rate of all four species is Ca. It can be conclude<br />

that the decomposition rate depend on the Ca concentration in each species.<br />

1980 | UMT UNDERGRADUATE RESEARCH DAY 2018

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!