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PERENNIAL
Published by Universitas Hasanuddin
ISSN : 14127784     EISSN : -     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science
“PERENNIAL” adalah artikel ilmiah hasil penelitian dan review asli dalam bidang teknologi, pengolahan, dan kebijakan pemanfaatan hasil hutan serta belum pernah dipublikasikan dan tidak sedang dalam proses penelaahan dalam jurnal ilmiah, bulletin, atau bentuk publikasi lainnya. Artikel yang dinyatakan diterima, hak publikasinya menjadi milik penerbit dan penulis tidak dapat mempublikasikan tulisan yang sama dalam jurnal atau bentuk publikasi ilmiah manapun.
Arjuna Subject : -
Articles 2 Documents
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Search results for , issue "Vol. 18 No. 1 (2022): Vol. 18 No. 1, April 2022" : 2 Documents clear
Nilai Indeks kerusakan pohon karet (hevea brasiliensis) di hutan rakyat kelurahan ujung gunung, kecamatan menggala, kabupaten tulang bawang.: The damage index value of rubber trees (Hevea brasiliensis) in rubber community forest Tulang Bawang Regency Selvira; Rahmat Safe'i; Slamet Budi Yuwono; Hari Kaskoyo
PERENNIAL Vol. 18 No. 1 (2022): Vol. 18 No. 1, April 2022
Publisher : Forestry Faculty of Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v18i1.18301

Abstract

Rubber (Hevea brasiliensis) is a tree species developed in community forests because it has dual benefits in the form of wood and sap. Therefore, the condition of damage to rubber trees needs to be known as a support effort to produce high sap production and the health of smallholder rubber plants. This study aimed to determine the index value of rubber tree damage in the community forest of Ujung Gunung Village, Menggala District, Tulang Bawang Regency. Data collection is done by calculating the tree damage index value through the damage location parameters (X), type of damage (Y), and the severity of tree damage (Z) using a circular plot with a radius of 17.95 cm following the annular plot in the FHM cluster plot design. The results showed that from 111 samples of observations, the index value of tree damage was in the range of 1.2 – 5.5. The damage index includes damage to the rootstock, upper and lower stems, branches, and leaves with cancer damage type, damaged leaves, and dead branches. The location of the dominant damage occurred in leaves with the type of leaf damage, shoots, or shoots damaged with damage index values ranging from 1.2 - 1.9. However, the most significant damage index value occurred in tree damage with the location of the damage on the trunk, type of cancer damage with a severity level of 57%. Thus, the location of the trunk with the type of cancer damage significantly affects the tree's damage with the highest damage index value of 5.5, which can stop the tree from producing latex until death. Control measures can be taken by cleaning the remaining latex and applying fungicides to the stems. In addition, tapping that is organized and does not exploit can prevent damage to the stems.
KAJIAN VEGETASI MANGROVE DI KABUPATEN BUTON UTARA (STUDI KASUS DI KECAMATAN KULISUSU) : Study of Mangrove Vegetation in North Buton District (Case Study in Kulisusu District) satya laksananny; Erny Poedjirahajoe; Ris Hadi Purwanto; Muh. Taufik Tri Hermawan
PERENNIAL Vol. 18 No. 1 (2022): Vol. 18 No. 1, April 2022
Publisher : Forestry Faculty of Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v18i1.18587

Abstract

One of the areas in Southeast Sulawesi Province and its potential mangrove forest ecosystem is North Buton Regency. The mangrove forest ecosystem in North Buton Regency is one of the coastal natural resources that have an essential role in social, economic and ecological aspects; besides, it also has the primary function as a balancer for the ecosystem. Provider of various necessities of life for humans and other living creatures. This study aims to determine the critical value index and mangrove density index in Eelahaji Village and Waculaeya Village, Kulisusu District, North Buton Regency. The research approach method uses vegetation analysis to determine the critical value index and the vegetation diversity index. The results showed that there were 5 (five) types of mangrove species in Eelahaji Village and Waculaeya Village, namely Bruguiera gymnorrhiza, Rhizophora stylosa, Xylocarpus granatum, Heritiera littoralis, Bruguiera parviflora. At the seedling and tree levels, the highest INP and H' in Eelahaji Village were B. gymnorrhiza, seedling INP level: 74; H': 0.4; INP tree level: 96 and H': 0.4.; The highest INP and H' at the pole or sapling level were R. stylosa species, namely INP: 105 and H': 0.4. The highest INP and H' in Waculaeya Village at the seedling level and the pole or sapling level were the B. gymnorrhiza species, namely the seedling level INP: 82; H': 0.4; at the level of piles or stakes INP: 97; H': 0.4, while the highest INP and H' tree levels were R. stylosa, namely INP: 100; H': 0.4. INP (importance value index) and H' (level of diversity) describe the density, frequency and dominance of mangrove vegetation in its ecosystem.

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