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Journal : BioWallacea Journal of Biological Research

KEANEKARAGAMAN DAN POTENSI FLORA PADA DAS LAGITO KABUPATEN BUTON UTARA, SULAWESI TENGGARA Kahirun Kahirun; La Ode Muhammad Erif; La Baco Sudia; Nasaruddin Nasaruddin
BioWallacea : Jurnal Penelitian Biologi (Journal of Biological Research) Vol 5, No 1 (2018): Sains & Biodiversitas Wallacea
Publisher : University of Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (868.031 KB) | DOI: 10.33772/biowallacea.v5i1.4588

Abstract

ABSTRAKDAS Lagito merupakan salah satu DAS yang terdapat di Kabupaten Buton Utara yang terletak di  Desa Bubu, Kecamatan Kambowa. DAS Lagito di dalamnya memiliki potensi keanekaragaman vegetasi hutan dan sungai Lagito merupakan salah satu habitat burung maleo. Namun demikian belum ada data untuk mengungkapkan seberapa besar potensi hutan dan kondisi habitat di DAS Lagito. Untuk itu pengungkapan data dan fakta potensi keanekaragaman hutan di DAS tersebut sangat dibutuhkan. Hasil studi inventarisasi vegetasi  ditemukan komposisi jenis pohon sebanyak  97 jenis, diantaranya terdapat beberapa jenis yang memiliki INP tinggi yakni beringin (Ficus benjamina) INP 79,07, singi INP 39,72, jati (Tectona grandis) INP 18,87, bayam (Intsia palembanica) INP 9,20, bitti (Vittex coffasus) INP 9,18, roda INP 9,16 dan see (Tetradium glabrifolium) INP 9,10. Kata kunci: Keanekaragaman, Potensi Flora, DAS Lagito  ABSTRACTLagito watershed is one of the catchments in North Buton Regency located in Bubu Village, Kambowa District. Lagito basin in it has the potential for diversity of forest vegetation and the Lagito river is one of the habitats of maleo birds. However, there is no data to reveal the potential for forests and habitat conditions in the Lagito watershed. Therefore, the disclosure of data and facts on potential for forest diversity in the watershed is urgently needed. The results of vegetation inventory study found 97 species of tree species composition, some of which have high Important Value Index (IVI) ie beringin (Ficus benjamina) IVI 79,07, IVI singi 39,72, jati (Tectona grandis) IVI 18,87, bayam (Intsia palembanica) IVI 9,20, bitti (Vittex coffasus) IVI 9,18, IVI roda 9.16 and see (Tetradium glabrifolium) IVI 9.10.Keywords: Diversity, Flora Potential, Lagito Watershed
Analisis Sebaran Jasa Ekosistem Penyediaan Pangan dan Air di Daerah Karst (Studi Kasus Kabupaten Buton Tengah) La Baco S; Kahirun Kahirun; Zulkarnain Zulkarnain; Albasri Albasri
BioWallacea : Jurnal Penelitian Biologi (Journal of Biological Research) Vol 7, No 1 (2020): BioWallacea and Sains
Publisher : University of Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (542.131 KB) | DOI: 10.33772/biowallacea.v7i1.11041

Abstract

The karst area is the dominant ecosystem in the area of Central Buton District where around 80 percent is a stretch of karst. This objectives of the study was to analyze the ability of ecosystems to provide food and water and its distribution spatially in Central Buton District. This research was conducted through a study of ecoregion characteristics, including data on landscape, natural vegetation types and land cover. In addition, population data, water availability, food availability and administrative data in Central Buton District were collected. Data analysis includes the calculation of ecosystem service indexes, spatial distribution of ecosystem service indices and indicative status of the carrying capacity of food and water. The average index of environmental services for food supply in the Karst area of Central Buton District was 2.52 with a low category, while the index of environmental services for water supply was lower at 1.96 with also a low category. Food service ecosystem index with a low category dominates Central Buton District with an area of 50,286.63 hectares (60.08%) and a medium category of 26,695.97 hectares (31.89%). Water supply ecosystem services index is very low to low with an area of 54,849.99 hectares (65.53%) and 24,551.24 hectares (29.33%). The overall carrying capacity of food and water in Central Buton District is still a surplus. The area of food surplus in the region reached 66,977.53 hectares (80.02%) and the total food surplus was 30,453,510,374 kcal. The total area of water surplus in Central Buton District is 81,291 hectares (97.12%) with a total surplus of 367,826,651 m3/year.Keywords: carrying capacity, ecoregion, ecosystem service index, karst area. AbstrakKawasan karst merupakan ekosistem dominan di wilayah Kabupaten Buton Tengah dimana sekitar 80 persen merupakan hamparan karst.  Penelitian ini bertujuan untuk menganalisis kemampuan ekosistem menyediakan pangan dan air serta distribusinya secara spasial di Kabupaten Buton Tengah. Penelitian ini dilakukan melalui kajian karakteristik ekoregion, mencakup data bentang lahan, tipe vegetasi alami dan tutupan lahan.  Selain itu dilakukan pengumpulan data kependudukan, ketersediaan air, ketersediaan pangan dan data administrasi Kabupaten Buton Tengah.  Analisis data meliputi perhitungan indeks jasa ekosistem, sebaran spasial indeks jasa ekosistem dan status indikatif daya dukung pangan dan air.  Rerata indeks jasa lingkungan penyediaan pangan Kawasan Karst Kabupaten Buton Tengah adalah 2,52 dengan kategori rendah, sementara itu indeks jasa lingkungan penyediaan air lebih rendah yakni 1,96 dengan kategori juga rendah.  Indeks jasa ekosistem penyediaan pangan dengan kategori rendah mendominasi Kabupaten Buton Tengah dengan luas 50.286,63 hektar (60.08 %) dan kategori sedang seluas 26.695,97 hektar (31,89 %). Indeks jasa ekosistem penyediaan air kategori sangat rendah sampai rendah dengan luas masing-masing 54.849,99 hektar (65,53 %) dan 24.551,24 hektar (29,33 %).  Status daya dukung pangan dan air Kabupaten Buton Tengah secara keseluruhan masih surplus.  Luas daerah surplus pangan di wilayah tersebut mencapai 66.977,53 hektar (80,02 %) dan total surplus pangan sebanyak 30.453.510.374 kkal. Luas daerah surplus air Kabupaten Buton Tengah adalah 81.291 hektar (97,12 %) dengan total surplus sebanyak 367.826.651 m3/tahun..Kata Kunci: daya dukung, ekoregion, indeks jasa ekosistem, kawasan karst, sebaran spasial.
Analisis Kemampuan Serapan CO2 dan Simpanan Karbon Pada Hutan Mangrove Di Desa Parida Kecamatan Lasalepa Kabupaten Muna La Ode Siwi; Basrudin Basrudin; Aminuddin Mane Kandari; Kahirun Kahirun; Herlan Hidayat; Mohammad Irsan
BioWallacea : Jurnal Penelitian Biologi (Journal of Biological Research) Vol 9, No 2 (2022): Biodiversitas Wallacea
Publisher : University of Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (542.669 KB) | DOI: 10.33772/biowallacea.v9i2.28662

Abstract

This study aims to determine the potential for CO2 uptake and carbon storage on the mangrove forest of Parida Village Lasalepa District Muna Regency. This research was conducted in January 2022 at Parida Village, Lasalepa District, Muna Regency. The sampling in this study used the purposive sampling method, the determination of the sampling was selected systematically with an intensity of 1%. The placement of the measuring plots is based on the zoning of the mangrove forest which is made of 3 (three) plots, where each plot is 15 m x 15 m (225 m2). The variables in this study were the diameter of an adult's chest height to determine above-ground biomass and carbon (above ground) without cutting down trees (non-destructive). Biomass is determined by Allometric equations. The carbon is determined by of the biomass. The results showed that the potential for CO2 absorption and carbon storage in mangroves in Parida Village, Lasalepa District, Muna Regency had an average CO2 absorption of 1057,49 ton.ha-1, and carbon storage 288,41 ton.ha-1. The carbon value is influenced by environmental conditions, the type of wood mass, the diameter of the mangrove trunk and the number of species contained in a plot.Keywords: Mangrove Forest, CO2Absorption,Carbon Storage. AbstrakPenelitian ini bertujuan untuk mengetahui potensi serapan CO2 dan simpanan karbon pada hutan mangrove di Desa Parida Kecamatan Lasalepa Kabupaten Muna.Penelitian ini dilaksanakan pada Bulan Januari 2022 bertempat di Desa Parida Kecamatan Lasalepa Kabupaten Muna.Adapun pengambilan sampel dalam penelitian ini menggunakan metode purposive sampling, penentuan pengambilan sampel dipilihsecara sistematis dengan intensitas 1%. Penempatan plot ukur didasarkan pada zonasi hutan mangrove yang dibuat 3 (tiga) plot, dimana masing-masing plot berukuran 15 m x 15 m (225 m2). Variabel dalam penelitian ini yaitu diameter batang untuk menentukan bioamassa dan jumlah karbon diatas permukaan tanah (above ground) dengan tanpa menebang pohon (non destuktif).Biomassa ditentukan dengan persamaan Allometrik.Adapun karbon ditentukan dengan ½ dari biomassa. Hasil penelitian menunjukan bahwa potensi serapan CO2 dan simpanan karbon pada hutan mangrove di Desa Parida Kecamatan Lasalepa Kabupaten Muna memiliki rata-rata serapan CO2 sebesar 1057,49ton.ha-1, serta simpanankarbon 288,41 ton.ha-1. Besar nilai karbon dipengaruhi oleh kondisi lingkungan, jenis masa kayu, diameter batang mangrove dan jumlah jenis yang terdapat dalam suatu plot.Kata Kunci : Hutan Mangrove, Serapan CO2, Simpanan Karbon