Keanekaragaman Makroarthropoda Tanah Akibat Limbah Cair PKS di Kebun PTPN III Sei Mangkei Kabupaten Simalungun

Abstract

Research about “ The Diversity of Soil Macroarthropoda Caused by Liquid Waste of Palm Oil Plant in Plantation of PTPN III Sei Mangkei Simalungun” was done in June 2010. The sampling point is determined using Purposive Random Sampling, and was cunducted using Pit Fall Trap, Squares & Hand Sorting. The number of macroarhtropoda species obtained were 15 species that belong to 9 Order and 11 Families. The highest density of land macroarthropoda was 2596,17 individu/10 m2 which was found in area treated by wastewater while, the lowest density was 2084,91 individu/ 10 m2 wich was found in untreared area. The species of Myrmecina sp showed the highest frequency of occurrence which was found on 40% of plantation area which was treated by liquid waste increated humidity, water content, organic carbon, and minerals availabilities such Mg, K, N, and P.