The diversity of macrofauna in peatlands that planted by palm oil and without palm oil in jambi region, Indonesia

Abstract

Macrofauna in peat land consist of invertebrates that have size more than 2 mm. Each kind of macrofauna has different biological role on the soil ecosystem. If the soil is disrupted, the life of macrofauna will have instability. One of disruptive activity is converse peatlands into the palm oil plantation. Therefore, the research is conducted in order to make descriptive analysis on the condition of peatlands that planted by palm oil plantations and without palm oil plantation. This study is held in Gambut Jaya village in Sungai Gelam by using purposive sampling technique. There are 3 research locations where 3 repeating transect are done in each location. Each transect consists of 8 monolith excavations and 10 pitfall traps. The excavation has 25 x 25 cm size with the depth 10 cm to avoid watery soil in the deeper land. The traps are placed during 24 h. The result showed that the diversity index in location A (peatland without palm oil) is 2, 27 and in location B (peatland with palm oil plantation) is 1, 97 which are categorized as medium. There are 28 species in location A which are not found in location B, while 11 species found in location B which are not found in location A. Then, 14 same species found in both locations.