Keanekaragaman Makrofauna Tanah Pada Areal Rerumputan dan Semak yang tidak dan Diberi Limbah Cair Pabrik Kelapa Sawit Sebagai Pupuk

Abstract

The role of soil macrofauna is to maintain soil fertility through the breakdown of the organic matter, the distribution of nutrients, the increasing aeration and the soil drainage. This research was conducted to determine the presence of the species, the population density, the diversity, the uniformity and the similarity of the soil macrofauna in areas of grass and bushes that were not treated and were treated with liquid palm oil mill waste at PT. KMSA Mampang Village, Kotapinang District, South Labuhanbatu Regency, North Sumatra Province. This research method was Purposive Sampling method, Quadratic method and Hand Sorting. The soil macrofauna was found in all research blocks as many as 23 species belongs to 3 phyla, 7 classes, 12 orders and 16 families. The highest species density value was the Camponotus ariceps species in Block 2 with a density value of 132.2 individuals/2m2. The diversity index (H') and the uniformity (E) are classified as medium with high uniformity. The highest Similarity Index value was obtained in Blocks 2 and 3 with a value of 58.33%.