A comparison of growth performance of trees species planted to restore the degraded area of former copper mining in Mamut, Ranau, Sabah

Author

Walter Lintangah , and Keith J. Nicholas, and Andy Russel Mojiol , and Julius Kodoh, and Noraini Abdullah, (2016) A comparison of growth performance of trees species planted to restore the degraded area of former copper mining in Mamut, Ranau, Sabah. International Journal of Agriculture, Forestry and Plantation, 2 . pp. 164-170. ISSN 2462-1757 PDF 48Kb Official URL: https://www.researchgate.net/publication/301285644... Abstract This study was conducted to assess the growth performance of trees planted in the former copper mining area in Mamut, Ranau, Sabah. Three different species observed on an ongoing basis are Paraserianthes falcataria (Batai), Eucalyptus deglupta and Pinus caribea. The trees’ growth and health were surveyed and recorded by using tree evaluation form. The measurement of tree growth was based on height and diameter at breast height (DBH); while tree crown, foliage colour and density, tree disease and tree regeneration were used to determine tree health. A total number of 105 trees of P. falcataria, 70 trees of E. deglupta and 123 of P. caribea were observed and measured in the area. The estimation of tree growth performance was based on the mean of height and DBH/year. The trees’ ages were based on year of the tree planted, with P. falcataria in 1992, E. deglupta 1993 and P. caribea 1997. It was found that P. caribea recorded the highest value of mean DBH cm/year which was 2.20 cm/year, followed by P. falcataria (0.52 cm/year) and E. deglupta (0.41 cm/year). The highest value of mean height/year was also confined to P. caribea with 0.85 m/year followed by E. deglupta (0.48 m/year) and P. falcataria (0.27 m/year). The P. caribea planted in Mamut have the highest level of adaptation (86.73%) which was based on the comparison with the tree heights of the same species in more favourable areas. This was followed by E. deglupta (16.38%) and P. falcataria (10.34%) respectively. The highest mortality rate confined to P. falcataria (85.5%) followed by E. deglupta (78.3%) and the lowest was P. caribea (21.2%). The P. caribea was found to be adapted well to the degraded land of the upland area in the former copper mining in Mamut. The species is suggested to be considered in species selection for the restoration of degraded land in the nearby areas of the upper part of Mount Kinabalu area. Item Type: Article Uncontrolled Keywords: restoration, mining area, degraded land, mountain area, mount Kinabalu, species selection Subjects: S Agriculture > SD Forestry Divisions: FACULTY > Faculty of Science and Natural Resources ID Code: 14142 Deposited By: IR Admin Deposited On: 06 Sep 2016 12:52 Last Modified: 06 Sep 2016 12:52

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