Geostatistical Analysis of Plastic Waste Disposal to Ecosystem (Vegetation) in Kefamenanu of North Central Timor Regency

  • Hermina Manlea University of Timor
Keywords: geostatistical analysis, vegetation density, plastic waste


The research was conducted in June – July 2017, in Kefamenanu of North Central Timor District. Number of locations of plastic waste contamination used as research sites were 44 (forty-four) points. The samples in this study were 4 points of plastic waste disposal. The objectives of this research are: 1) to geostatistically mapping soil pH, soil moisture, air temperature and humidity of area contaminated by plastic waste disposal in Kefamenanu, 2) to know which species are found in research location, 3) to understand statistically the relationship between accumulations of plastic waste to vegetation density in Kefamenanu. The methods used in this research are: 1) data collection of plastic waste dumping point by using GPS. The location is expressed in latitude and longitude coordinates; 2) sampling method was purposive sampling. The analysis of vegetation is quantitative analysis, and quadratic method was used for research implementation of terrestrial
vegetation. The observed data were analyzed in the following ways: a) Geostatistical map of the area was generated from ArcGIS 10.4 software, b) Calculating density parameters, and c) Statistical analysis using t-test for two independent means.The study revealed that From inferential statistical analysis through t-test, it cannot be proved that there is a difference in vegetation density between accumulated and not accumulated plastic waste sites because the number of samples analyzed is very small. Statistically descriptive through the calculation of the mean (also
illustrated in the mean graph), there is a difference in the mean of the density of vegetation (either absolute density or relative density) between the accumulated and non-accumulated plastic waste sites.
Keywords: geostatistical analysis, vegetation density, plastic waste


Download data is not yet available.


Badan Pusat Statistik (BPS) Timor Tengah Utara. 2016. website:

Fachrul M F, Hendrawan D, Sitawati A. Land Use and Water Quality Relationshipsin the Ciliwung River Basin, Indonesia. Proceedings of the International Congress on River Basin Managementdsi. 2007 March. 575-582.

Figueiredo F D B, Paranhos R, Rocha EC, Batista M, Silva Jr JA, Santos ML, Marino JG. When is statistical significance not significant?. Brazilian Political Science Review. 2013;7(1):3155. DOI:

Halden R U. Plastics and health risks. Annual review of public health. 2010 Apr 21;31:179-94. DOI:

Hatfield J L, Prueger JH. Temperature extremes: Effect on plant growth and development. Weather and climate extremes. 2015 Dec 1;10:4-10.

Krivoruchko K. Empirical bayesian kriging. ArcUser Fall. 2012;2012:6-10.

Lakshmi V, Jackson T J, Zehrfuhs D. Soil moisture–temperature relationships: results from two field experiments. Hydrological processes. 2003 Oct 30;17(15):3041-57. DOI:

Mattina M I, Lannucci-Berger W, Musante C, White JC. Concurrent plant uptake of heavy metals and persistent organic pollutants from soil. Environmental pollution. 2003 August 1;124(3):375-8. DOI:

Mortensen L M. Effects of air humidity on growth, flowering, keeping quality and water relations of four short-day green house species. Scientia horticulturae. 2000 Dec 1;86(4):299310. DOI:

Rees J F. The fate of carbon compounds in the landfill disposal of organic matter. Journal of Chemical Technology and Biotechnology. 1980;30(1):161-75. DOI:

Soegianto A. Ekologi Kuantitatif: Metode Analisis Populasi dan Komunitas. Usaha Nasional. Surabaya.1994.

Surono UB. Berbagai metode konversi sampah plastic menjadi bahan bakar minyak. Jurnal Teknik. 2013 Apr; 3(1):32-40.

Thomas GW. Soil pH and soil acidity. Methods of Soil Analysis Part 3—Chemical Methods. 1996 Jan (methods of soilan 3):47590.
How to Cite
Manlea, H. (2018). Geostatistical Analysis of Plastic Waste Disposal to Ecosystem (Vegetation) in Kefamenanu of North Central Timor Regency. Journal of Applied Chemical Sciences, 5(2), 477-482. Retrieved from

Most read articles by the same author(s)

Obs.: This plugin requires at least one statistics/report plugin to be enabled. If your statistics plugins provide more than one metric then please also select a main metric on the admin's site settings page and/or on the journal manager's settings pages.