Hubungan Ketebaln Serasah Dengan Kepadatan Cacing Tanah Di Kawasan Arboretum …

The aim of this research was to determine the relationship of litter thickness with earthworm density in the arboretum area university of riau. The research conducted on November 2018 until January 2019 with a survey method. The determining sampling area based on environmental topography, purposive random sampling with six stations where each station consisted of a 10x10 m plot with a 25x 25 cm…