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IDENTIFIKASI DIVERSITAS MAKROFAUNA TANAH DI AREA TAMBANG PANAS BUMI MUTUBUSA DESA SOKORIA KECAMATAN NDONA TIMUR Fatria Ika Ndati Rhengi; Agustinus J P Ana Saga; Philipus N. Supardi
AGRICA Vol. 15 No. 1 (2022): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v15i1.1967

Abstract

Soil macrofauna is animals that have a body size of 2-20 mm. The main place of life for macrofauna is not only above but also underground. The purpose of this study was to determine the diversity of soil macrofauna and environmental conditions on forest land and agricultural land in the Mutubusa Geothermal Mine area. The selection of research sites using the purposive sampling method and The sampling technique was carried out by the monolith sampling method. Observational variables in this study were diversity index, relative frequency, density index, and relative density. The results of the diversity analysis show that there are ten types of soil macrofauna, that is; Cockroaches, Millipedes, Spiders, Ants, Conch, Earthworms, Crickets, Grasshoppers (H' = 1.67), Mixed Fields (H' = 1.32), and Coffee Fields (H' = 1.28). While the density of soil macrofauna in candlenut land is 2.9%, forest land is 0.2%, mixed land is 1.5% and coffee land is 0.4%. The highest important value index in candlenut land was snail species, amounting to 39%, while in forest and mixed land, the highest important value index was ant species, respectively, 41% and 67%.
No-till farming activites in some Umanapu (agroforestry land) on earthworm diversity: a case study in Detusoko District, Ende Regency Agustinus J.P Ana Saga; Kristono Yohanes Fowo
Jurnal Penelitian Kehutanan Wallacea Vol. 11 No. 1 (2022)
Publisher : Foresty Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1039.713 KB) | DOI: 10.18330/jwallacea.2022.vol11iss1pp71-78

Abstract

No-till farming (NTF) is an agricultural activity without tillage process, so it can minimize damage to soil structure, reduce erosion, and reduce the decrease in soil organic matter content related to the presence of earthworms. The purpose of this study was to determine the activity of no-till farming on earthworm diversity. Exploration of earthworms was carried out by hand sorting and monolith sampling methods in Umanapu (agroforestry) of Clove, Cocoa, Candlenut, Coffee and intensive tillage farms. The earthworms were identified by observing the morphology characteristics. In addition, the observation of biomass and population of earthworms, and environmental factors were also carried out. The results showed that there were four genera of endogeic and epigeic worms, namely Lumbricus, aMegascolex, Perithima and Pontoscolex. Diversity index (H'), maximum diversity (H'max) and species evenness (E) of earthworms in intensive tillage agriculture were low but in Umanapu of Clove, Cocoa, Candlenut and Coffee were moderate. The earthworm populations, earthworm biomass (g m2) and the ratio of biomass and population of earthworms (B/P) in Umanapu of Clove, Cocoa, Candlenut and Coffee were equal and significantly different from intensive tillage. The importance value index (IVI) in Umanapu of Clove, Cocoa, Candlenut, Coffee and intensive tillage agriculture were dominated by the Pontoscolex genus. In addition, the environmental conditions such as temperature and pH of soil at each location in Umanapu were not different, as well as the environmental temperature and humidity. NTF can maintain and sustain the existence of species, population and IVI of earthworms, so that soil biological properties are still maintained.
Indeks Nilai Penting Dan Berat Jenis Kayu Pada Beberapa Lahan Agroforestry Di Kawasan Penyangga Taman Nasional Kelimutu Anasaga, Agustinus J.P
AGRICA Vol. 17 No. 2 (2024): December
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v17i2.4652

Abstract

This study investigates the importance of the value index and wood-specific gravity in the buffer area of Kelimutu National Park. The method used is Nested Sampling Design (NSD). The research results show that there are 15 species of agroforestry land in Kelimutu National Park that are based on cloves (AF-CV), cocoa (AF-CC), candlenuts (AF-CL), and coffee (AF-CF). In AF-CV with a breast diameter (DBH) less than 30 cm, the dominant species is jackfruit (Artocarpus heterophyllus) (IVI 101%). AF-CL  with DBH less than 30 cm is dadap (Erythrina varie); DBH more than 30 cm is candlenut (Aleurites moluccanus), IVI 104%). coffea (IVI 155%), and mahagoni (Swietenia mahagoni) (IVI 100%). Based on the trunk diameter (DBH) and SG of the wood, two types of wood have light SG: AF-CC (82%), AF- CF (88%), and AF-CL (7%). Secondly, if DBH is more than 30 cm, light SG in AF-CL (96%) and moderate SG in AF-CV (98%).  The wood SG value in AF-KM (0.58 g m3) is the same as the other three Agroforestries, with an average of 0.49 g m3 ha-1.