Keanekaragaman Makrofauna Tanah pada Beberapa Variasi Vegetasi di Lahan Penelitian Agroekoteknologi Universitas Lambung Mangkurat

Abstract

Soil macrofauna is one of the bioindicators of soil fertility. The existence of soil macrofauna is important in an ecosystem, especially agricultural ecosystems because it is related to the decomposition of organic matter. This study aims to obtain preliminary data on the diversity of soil macrofauna in garden, agricultural site, and grass vegetation in the ULM Agroecotechnology research area. Samples were taken using the pitfall traps method at three points in each type of vegetation. The data were analyzed using the Margalef species richness index (R), the Shannon-Wiener diversity index (H'), and the Pielou evenness index (Evennes Index). The results showed that the highest macrofauna diversity was found in garden vegetation with an index value of 1.9. Peanut farming vegetation has a diversity index of 0.6 and grass vegetation of 0.3. Soil macrofauna are sensitive to direct solar radiation. The garden vegetation provides plenty of litter and shade, these conditions are more optimal for soil macrofauna life than other vegetation. Soil pH in grass vegetation was found to be the lowest at 5.5, in accordance with Agritrop: Jurnal Ilmu-Ilmu Pertanian (Journal of Agricultural Science), Juni 2022 ISSN 1693-2897 EISSN 2502-0455 Volume 20 (1) http://jurnal.unmuhjember.ac.id/ index.php/AGRITROP85 Agritrop: Jurnal Ilmu-Ilmu Pertanian (Journal of Agricultural Science), Vol. 20 (1): 84 - 92 the low level of macrofauna diversity. The content of N-total had a positive trend with macrofauna diversity, namely 0.26 in forest vegetation, 0.21 peanut vegetation, and 0.20 grass vegetation. The highest C-organic content in peanut vegetation was 1.64. This data can be used as a reference for research land use, especially improving soil functions with ecological principles in order to preserve ecosystem sustainability. Keywords: soil fertility, organic matter, decomposition, ecosystem.