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There is still very little information on the sources of water absorbedby oil palm plant. This information is very important for water managementsystem in oil palm plantation. Thus, this study was carried out to determinecurrent water sources absorbed by the oil palm roots using oxygen δ18Oand deuterium isotopes δD techniques. Sketches of oxygen and deuteriumisotope were total rainfall, throughfall, runoff, measurement at 5 soil depthsnamely: 20 cm, 50 cm, 100 cm, 150 cm, and 200 cm, and oil palm stem. Resultsof this study showed huge variance in the values of oxygen and deuteriumisotope. Based on Least Significant Difference LSD test, there was nosignificant value in the oxygen and deuterium isotope of stem water and others;however, a similar value was obtained at the depths of 0 - 20 cm and 20 - 50 cmwith the stem water. This indicated that oil palm absorbed water from 0 - 50 cmdepth. This result agreed with the oil palm rooting system, which has verifiedthat the root quarter is the most active root of oil palm.

KEYWORDS

Deuterium Isotope Technique, Plant Water Sources, Stable Oxygen

Cite this paper

Edwin, M. , Lubis, S. , Harahap, I. , Hidayat, T. , Pangaribuan, Y. , Sutarta, E. , Rahman, Z. , Teh, C. and Hanafi, M. 2014 Stable Oxygen and Deuterium Isotope Techniques to Identify Plant Water Sources. Journal of Water Resource and Protection, 6, 1501-1508. doi: 10.4236-jwarp.2014.615137.





Autor: M. Edwin1*, S. Lubis1, I. Yani Harahap1, Taufiq C. Hidayat1, Y. Pangaribuan1, Edy S. Sutarta1, Zaharah A. Rahman2, Christopher Te

Fuente: http://www.scirp.org/



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