Assessment of Nitrogen and Phosphorus in Mangrove Forest Soil at Awat-Awat Lawas Sarawak
American Journal of Agriculture and Forestry
Volume 4, Issue 5, September 2016, Pages: 136-139
Received: Nov. 15, 2015; Accepted: Jan. 6, 2016; Published: Oct. 11, 2016
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Authors
Seca Gandaseca, Department of Forest Production, Faculty of Forestry, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
Ahmad Mustapha Mohamad Pazi, Department of Forest Production, Faculty of Forestry, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
Muhammad Nazrin Syafiq Zulkipli, Department of Crops Science, Faculty of Agriculture and Food Science, Universiti Putra Malaysia Bintulu Sarawak Campus, Bintulu, Sarawak, Malaysia
Ahmad Hanafi Hamzah, Department of Forest Production, Faculty of Forestry, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
Pakhriazad Hassan Zaki, Department of Forest Management, Faculty of Forestry, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
Arifin Abdu, Department of Forest Management, Faculty of Forestry, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
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Abstract
Despite few studies of forest health and environmental conditions of mangrove forest in Sarawak, the data was not sufficient to facilitate baseline data and direct comparison of mangrove forest health obtained for mangrove forest in Awat-Awat, Lawas, Sarawak. The objectives of the study were to determine the total N and available P concentration in the mangrove forest soil along with the effect of the soil depth on nutrient concentration. Mangrove soil samples were taken from Lawas Division of Sarawak at 0-15 cm and 15-30 cm depths. Selected soil chemical properties as N, P, pH and Soil Cation Exchange Capacity (CEC) were determined using standard methods. As a result, means of selected chemical properties are as follow, 0-30 cm N% (0.196), P (15.59 ppm), pH in water solution (5.83), pH in 1M KCl (5.32) and CEC (27.53 cmol) while at 30-50 cm, Total N% (0.403), P (6.45 ppm), pH in water (5.59), pH in 1 M KCl (4.99) and CEC (29.57 cmol). Conclusion of this study, soil depth has given significant effects on the soil acidity, total N, available P and CEC with the difference depth. Where top soil contains less nutrient concentration than the bottom soil. The data statistical analysis has shown there are significantly different between the depths of the mangrove soil. Obtained data can be useful for further study of nutrient content and for the rehabilitation of the mangrove forest in another area.
Keywords
Total N, Available P, Mangrove Forest, Lawas, Sarawak
To cite this article
Seca Gandaseca, Ahmad Mustapha Mohamad Pazi, Muhammad Nazrin Syafiq Zulkipli, Ahmad Hanafi Hamzah, Pakhriazad Hassan Zaki, Arifin Abdu, Assessment of Nitrogen and Phosphorus in Mangrove Forest Soil at Awat-Awat Lawas Sarawak, American Journal of Agriculture and Forestry. Vol. 4, No. 5, 2016, pp. 136-139. doi: 10.11648/j.ajaf.20160405.14
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Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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