Master, Jani and Tjitrosoedirdjo, Soekisman and Qayim, Ibnul (2015) Abiotic Factors Influencing Mantangan (Merremia peltata) Invasion In Bukit Barisan Selatan National Park. Abiotic Factors Influencing Mantangan (Merremia peltata) Invasion In Bukit Barisan Selatan National Park, 23 (1). pp. 21-27. ISSN 0215-6334

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Abstract

Some areas in Bukit Barisan Selatan National Park have serious problems related to Merremia peltata (Family Convolvulaceae) invasion. The abiotic factors influencing M. peltata invasion were investigated in this study. This research compared abiotic factors in three forest locations with different invasion levels i.e. severe, moderate and mild invasions. Abiotic factors measured were percentage of tree canopy coverage, micro climate factors (temperature and humidity), elevation above sea level and physical and chemical properties of the soil surface. In this study, canopy coverage is classified as abiotic factors because it influences the intensity of light that can reach the forest floor. A post-hoc Duncan’s Multiple Range Test (DMRT) was employed to determine significant differences (p<0.05) among abiotic factors. In addition, a test of correlation and multiple linear regression were conducted to determine the relationships between abiotic factors and M. peltata invasion. Multiple regression testing showed that canopy coverage significantly (p<0.05) influenced M. peltata invasion. Based on the generated model, a 1% addition of canopy coverage would decrease M. peltata invasion by 2.8%. Multiple linear regression analysis was used to predict the relationship between soil nutrients and invasion. The t C/N ratio and P2O5, Ca, Mg and Na concentration significantly (p<0.05) influenced invasion level. Again, based on the generated model, the increase in the C/N ratio as well as P2O5 and Ca concentrations were correlated with the reduce of M. peltata invasion; while the increase of Mg and Na concentrations were correlated with the increase of M. peltata invasion. M. peltata invasion in Bukit Barisan Selatan National Park was influenced by opened forest canopy and was correlated with high concentration of Na and Mg in the soil of the invaded forest areas.

Item Type:	Article
Subjects:	Q Science > Q Science (General) Q Science > QK Botany S Agriculture > SD Forestry
Divisions:	Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Prodi Biologi
Depositing User:	Mr. Jani Master
Date Deposited:	30 Oct 2016 13:31
Last Modified:	10 Nov 2016 03:10
URI:	http://repository.lppm.unila.ac.id/id/eprint/992

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