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Slamet Arif Susanto
Program Studi Biologi, Fakultas Matematika Dan Ilmu Pengetahuan Alam Universitas Papua Manokwari, Manokwari 98314, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Medicine & Pharmacology Public Health Veterinary Other

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Karakteristik Lahan Bera Dengan Umur Berbeda dan Pengaruhnya Terhadap Dekomposisi Serasah di Manokwari, Papua Barat Susanto, Slamet Arif; Qayim, Ibnul; Triadiati, Triadiati
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) Vol 45, No 2 (2021)
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v45n2.2021.117-132

Abstract

Abstrak. Karakteristik umur lahan bera memiliki peran penting dalam pengembalian hara melalui proses dekomposisi. Penelitian dekomposisi serasah dan cadangan karbon pada beberapa umur lahan bera telah dilakukan di Manokwari, Provinsi Papua Barat dari Juli 2020 sampai Januari 2021. Penelitian bertujuan menganalisis proses dekomposisi in situ serasah daun vegetasi lokal pada beberapa umur lahan bera, serta mengukur cadangan karbon dari vegetasi masing-masing lahan bera. Setiap umur lahan bera dipasang sebanyak 18 kantung serasah yang masing-masingnya berisi 20 g serasah daun dari vegetasi lokal lahan bera. Sebanyak tiga kantung serasah diambil setiap bulan dari masing-masing umur lahan bera, kemudian dikeringkan hingga bobot kering konstan. Cadangan karbon biomassa vegetasi dianalisis menggunakan persamaan alometrik berdasarkan diameter pohon setinggi dada (dbh). Hasil penelitian menunjukkan bahwa kehilangan bobot serasah setelah 6 bulan dekomposisi pada lahan bera 5, 10, dan 15 tahun masing-masing mencapai 92,62%; 94,00%; dan 97,12%. Konstanta dekomposisi (tetapan kehilangan bobot serasah) pada lahan bera 5 dan 10 tahun tergolong rendah yakni 0,65 dan 0,94. Lahan bera 15 tahun memiliki konstanta dekomposisi yang tergolong sedang yakni 1,18. Cadangan karbon pada lahan bera 5, 10, dan 15 tahun masing-masing sebesar 7,57; 32,63; dan 141,33 ton/ha. Penurunan rasio C/N setelah 6 bulan dekomposisi pada lahan bera 5, 10, dan 15 tahun masing-masing sebesar 66,67%; 56,25%; dan 39,39%. Dekomposisi serasah pada lahan bera 5 tahun dipengaruhi oleh curah hujan, sedangkan pada lahan bera 15 tahun dipengaruhi oleh kelembapan tanah. Penelitian ini mengindikasikan bahwa umur lahan bera menyebabkan perbedaan komposisi vegetasi, sehingga berpengaruh pada proses dekomposisi dan banyaknya cadangan karbon. Abstract. The characteristics of the fallow land have an important role in the return of nutrients through decomposition process. Research on litter decomposition and carbon stock on different ages of fallow has been carried out in Manokwari, West Papua from July 2020 to January 2021. The aim of the study was to analyze the in situ decomposition process of leaves litterfall from local vegetation at several ages of fallow, and also measure the biomass carbon stock of each fallow land. A total 18 litterbags were installed, each containing 20 g leaves litterfall from the local vegetation of the fallow land. Three litter bags from each age fallow were taken every month and dried to constant mass. Biomass carbon stocks were analyzed using an allometric equation based on the diameter of the trees at breast height (dbh). The results showed that the litter mass loss at fallow 5, 10, and 15 years were 92.62%; 94.00%; and 97.12% respectively after 6-month decomposition. The slowest decay constants (constants of litter mass loss) were 0.65 and 0.94 at fallows 5 and 10 years respectively, whereas at fallow 15 years with k 1.18. Carbon stocks in fallow land of 5, 10, and 15 years were 7.57; 32.63; and 141.33 ton/ha, respectively. The decrease of C/N ratios at fallow 5, 10, and 15 years were 66.67%; 56.25%; and 39.39% respectively after 6 month decomposition. Litter decomposition was influenced by local rainfall on fallow land at 5 years old and soil moisture at 15 years old. This study indicates that the age of fallow lands lead to differences in the composition of vegetation, so that it affects decomposition process and the amount of carbon stocks.
Estimasi Produktivitas Serasah di Lahan Bera Womnowi, Distrik Sidey, Manokwari Slamet Arif Susanto; Heru Joko Budirianto; Agatha Cecilia Maturbongs
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (821.501 KB) | DOI: 10.18343/jipi.25.2.185

Abstract

Aspects of litter productivity in fallow land in Manokwari, Western Papua need to be investigated because litter has the potential to increase soil fertility. The objective of this research was to count and estimate litter productivity in 15 years-fallow land in Womnowi, Sidey District, Manokwari. We used litter trap of 1 m2 in size with 2 mm mesh size. Nine litter traps were set under tree species, three replications of each tree species which have higher Important Value Index (IVI). Litters were weekly taken and oven dried until reaching the constant mass. Result showed that the dry masses of litters are not significantly different among three species. If the productivities are constant and probabilities of litterfall are same, the estimates of Dractontomelon dao have dry mass productivity rate (DMP) reaching 10.32 ton ha-1 year-1, followed by 8.98 ton ha-1 year-1 for Pometia pinnata, and 7.96 ton ha-1 year-1 for Octomeles sumatrana. Dry mass percentage (DMP) decreased in the order of P. pinnata > D. dao > O. sumatrana. We found negative linear regressions about water content of litter (WCL) and DMP at P. pinnata and O. sumatrana, but not for D. dao. These negative linear regressions can be used to estimate the rate of decomposition of each species. Keywords: linear regression, litterfall, secondary forest, soil fertility, Western Papua
Potensi dan Keragaman Tumbuhan Bawah Non-Kayu Di Lahan Bera Womnowi Distrik Sidey Manokwari Slamet Arif Susanto; Heru Joko Budirianto; Agatha Cecilia Maturbongs; Simeon Abdi Putra
ULIN: Jurnal Hutan Tropis Vol 3, No 1 (2019)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (23.099 KB) | DOI: 10.32522/ujht.v3i1.1878

Abstract

Selama proses suksesi tumbuhan bawah non-kayu berhubungan dengan vegetasi fase pohon yang melingkupi lahan suksesi. Lahan bera adalah salah satu model suksesi sekunder yang umum dijumpai di Papua. Penelitian telah dilakukan di lahan bera 15 tahun Womnowi, Sidey Manokwari untuk menentukan indeks nilai penting (INP), keanekaragaman, kemerataan, dan mendeskripsikan jenis berpotensi dari tumbuhan bawah non-kayu. Di lapangan Kami menggunakan metode continouse line sampling secara purposif dengan petak 2x2 m setiap 20x20 m. Kami menemukan 749 individu dari 41 jenis, INP tertinggi adalah Sellaginella wyldenowii (25.04%), Selaginella sp. (23.44%), dan Spathoglottis plicata (14.60%), indeks keanekaragaman Shannon-Weiner (Hʹ) adalah 3.13, dan indeks kemerataan (E) 0.84. Kami juga menemukan beberapa jenis anggrek dan Arecaceae yang unik, serta beberapa jenis yang dimanfaatkan oleh masyarakat lokal seperti Diplazium esculentum dan Pothos spp. Berdasarkan komposisi floristic dari analisis vegetasi tumbuhan bawah non-kayu kesimpulan sementara kami adalah tumbuhan bawah non-kayu yang ditemukan di lahan bera 15 tahun Womnowi, Sidey Manokwari adalah shade plant.Kata kunci:Lahan bera, analisis vegetasi, tumbuhan bawah non-kayu, potensi, Manokwari
Sebaran Ukuran Diameter Pohon Untuk Menentukan Umur dan Regenerasi Hutan di Lahan Bera Womnowi, Manokwari Slamet Arif Susanto
Biotropika: Journal of Tropical Biology Vol 7, No 2 (2019)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2019.007.02.4

Abstract

Lahan bera telah menjadi bentuk ekosistem yang umum dijumpai di Papua. Mengukur dan mengidentifikasi sebaran ukuran diameter pohon di lahan bera Womnowi Sidey Manokwari Papua Barat adalah tujuan utama penelitian ini. Pada luas 1 hektar dibuat sub petak berukuran 20 x 20 meter yang di dalamnya terdapat sub petak 10 x 10 meter, sehingga total sub petak berjumlah 25. Diameter pohon diukur secara langsung di lapangan pada ketinggian 1.3 meter atau diameter pohon setinggi dada. Data diproses dan dianalisis secara statistik dan tabulasi untuk menentukan pola regenerasi vegetasi pohon. Hasil menunjukkan dominasi sebaran ukuran diameter pohon pada kelas-kelas tertentu, namun tetap menunjukkan kurva J terbalik sebagai ciri proses regenerasi hutan sekunder intermediet yang baik. Nilai korelasi yang tinggi antara jumlah individu per hektar dengan ukuran sebaran kelas diameter vegetasi pohon dominan berturut-turut Pometia pinnata, Lansium domesticum, Dracontomelon dao, dan Octomeles sumatrana. O. sumatrana adalah jenis dominan yang memiliki ukuran diameter pohon terbesar dibanding jenis dominan lainnya. Secara klasik disimpulkan preferensi habitat jenis tumbuhan selama periode bera berperan dalam daya regenerasi dan memengaruhi sebaran ukuran diameter pohon.Kata kunci: alluvial, diameter setinggi dada, hutan sekunder, kurva J terbalik, Papua Barat
Suhu dan Kelembaban Berdampak Pada Produktivitas Serasah Basah Vegetasi Dominan di Lahan Bera Womnowi Distrik Sidey, Manokwari Papua Barat Slamet Arif Susanto; Heru Joko Budirianto; Agatha Cecilia Maturbongs
BIOMA : JURNAL BIOLOGI MAKASSAR Vol. 4 No. 1 (2019)
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/bioma.v4i1.5965

Abstract

Tujuan penelitian ini adalah untuk mengukur produktivitas serasah basah dari vegetasi dominan bergantung pada suhu dan kelembaban relatif di lahan bera Womnowi Distrik Sidey Manokwari. Kami menggunakan perangkap serasah berukuran 1 m x 1 m dari mesh 25 cm2 -1 dan dipasang selama bulan Maret hingga Mei 2018. Setiap minggu serasah diambil dan ditimbang di lapangan, selanjutnya diukur suhu dan kelembaban relatif di tiga titik berbeda. Analisis data menggunakan Ms. Excel 2007 dan SPSS 23.0 untuk menginterpretasikan data. Produktivitas serasah basah dapat diinterpolasikan dengan suhu dan kelembaban relatif, sehingga menjelaskan kontrol faktor lingkungan. Berdasarkan uji beda nyata terkecil (BNT) 5% tiga jenis vegetasi dominan memiliki rerata produktivitas serasah: Pometia pinnata Forst. & Forst. 24.59 ± 17.01 g m2 -1 minggu-1, Dracontomelon dao (Blanco.) Merr. et Rolfe. 42.09 ± 19.17 g m2 -1 minggu-1, dan Octomeles sumatrana Miq. 40.14 ± 15.28 g m2 -1 minggu-1 berbeda signifikan. Meskipun penelitian ini hanya berlangsung selama 12 minggu, model produktivitas serasah basah dapat digunakan untuk menduga produktivitas serasah per tahun. Produktivitas serasah basah merupakan salah satu ‘proses alami’, akan tetapi memiliki peran yang signifikan pada: kimia tanah, penahan air tanah, konservasi tanah, dan dapat digunakan untuk menentukan produktivitas lahan bera.
Status Konservasi Vegetasi Pohon di Lahan Bera Womnowi Sidey Manokwari (Sebuah Catatan Kecil Inventarisasi Vegetasi di Hutan Sekunder Papua Barat) Slamet Arif Susanto
BIOMA : JURNAL BIOLOGI MAKASSAR Vol. 4 No. 2 (2019)
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/bioma.v4i2.6693

Abstract

Studi konservasi di hutan sekunder khususnya di lahan bera penting di masa mendatang. Penelitian ini bertujuan membuat sebuah catatan kecil inventarisasi vegetasi pohon di lahan bera Womnowi Sidey Manokwari berdasarkan data Union for Conservation of Nature Resources (IUCN). Penelitian ini menggunakan metode analisis vegetasi―sebuah teknik continuous strip sampling, 10 x 10 meter untuk fase tiang dan 20 x 20 meter untuk fase pohon yang dilakukan pada awal bulan Mei 2018. Total individu jenis yang diinventarisasi pada luas satu hektar adalah 378 individu terdiri dari 65 jenis tiang dan pohon. Hasil menunjukkan vegetasi pohon didominasi oleh status LC. Dua jenis telah teridentifikasi sebagai NT dan V pada fase tiang: Aglaia odorata Lour. (NT) and Intsia bijuga (Colebr.) Kuntze. (V). Indeks nilai penting (INP) jenis yang tergolong dalam IUCN adalah 76.05% pada fase tiang dan 83.53% pada fase pohon. Jenis dominan mungkin berpengaruh pada status konservasinya, penelitian lanjutan yang komprehensif perlu dilakukan dibeberapa tipe lahan bera di Papua Barat.Kata kunci: bera, konservasi, vegetasi pohon, analisis vegetasi, Manokwari
IMPORTANT VALUE OF COASTAL FOREST (INFLUENCE OF COASTAL DISTANCE TO SPECIES CONSERVATION AT AIPIRI MANOKWARI) Slamet Arif Susanto; Simeon Abdi Putra; Heru Joko Budirianto
Biocelebes Vol. 13 No. 2 (2019)
Publisher : Biology Department, Mathematics and natural science, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (991.751 KB)

Abstract

The conservation status of vegetation in coastal forest needs to be explored, because coastal forests are an area of development in the future. This study aims to compare coastal forest vegetation (A areas) with vegetation in habitats 600 meters from the shoreline (B areas) referring to the International Union for Conservation of Nature Resources (IUCN) conservation status. The method used the analysis of vegetation technique for determining the important value index (IVI), then each component of the IVI data is compared through the one way ANOVA test followed low significantly different test (LSD) at the P<0.05. The result showed that IVI components of vegetation in A areas belonging to the IUCN category were higher then vegetation in B areas. The vegetation in A areas categorized as IUCN was: Pongamia pinnata (L.) Pierre., Celtis philippensis Blanco., Intsia bijuga (Colebr.) Kuntze., Polyscias nodosa (Blume.) Seem., and Calophyllum inophyllum L., while in the types B areas in the IUCN category were dominated by Spathiostemon javensis Blume., Horsfieldia irya (Gaertn.) Warb., and Myristica fatua subsp. fatua. Vegetation of coastal forest needs to be prioritized as a conservation area, because species belonging to the IUCN category have high IVI.
Peran Vegetasi Dominan Pada Karakteristik Tanah di Lahan Bera, Kampung Womnowi, Distrik Sidey, Manokwari Slamet Arif Susanto; Heru Joko Budirianto; Agatha Cecilia Maturbongs
Jurnal Biologi Tropis Vol. 20 No. 2 (2020): Mei - Agustus
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (533.24 KB) | DOI: 10.29303/jbt.v20i2.1899

Abstract

Abstrak: Selama proses suksesi, vegetasi merupakan satu dari komponen utama untuk meningkatkan kesuburan tanah. Tujuan penelitian ini adalah untuk menganalisis dan mendeskripsikan peran vegetasi dominan pada karakteristik tanah di lahan bera berumur 15 tahun Kampung Womnowi, Distrik Sidey, Manokwari. Vegetasi dominan ditentukan berdasarkan data indeks nilai penting (INP) analisis vegetasi. Sampel tanah diambil secara komposit pada luasan lahan 1 hektar dari dua kedalaman tanah (0–10 cm dan 10–20 cm). Vegetasi yang mendominasi lahan bera secara berurutan adalah Pometia pinnata, Dracontomelon dao, Octomeles sumatrana, Lansium domesticum, dan Pimelodendron amboinicum. Kehadiran O. sumatrana mengindikasikan lahan bera tanah aluvial, lebih lanjut terbukti karena lahan bera tersebut berdekatan dengan Sungai Womnowi. Karakteristik fisik tanah didominasi oleh fraksi lempung dan unsur makro lebih tinggi pada kedalaman 0–10 cm dibanding kedalaman 10–20 cm. Karakteristik tanah menunjukkan bahwa tanah tergolong masam (pH 5.4–5.6), kadar karbon organik tanah sedang (1.07–3.39%), kadar nitrogen total rendah (0.17–0.53%), kadar fosfor tersedia tergolong tinggi (10.7–22.4 ppm), kapasitas tukar kation (KTK) tergolong tinggi (10.50–20.32 cmol kg-1), kejenuhan basa tergolong sangat tinggi (65.4–66.7%), dan kadar Al3+ and H+ sangat rendah. Secara keseluruhan urutan KTK menunjukkan Ca > Mg > Na > K yang mengonfirmasi tanah aluvial dan pencucian kalium terjadi dengan cepat. Rendahnya kadar kalium dapat dihubungkan dengan penggunaan unsur tersebut untuk pembentukan buah L. domesticum. Selama pemberaan 15 tahun, vegetasi dominan memengaruhi karakteristik tanah.Kata kunci: vegetasi pohon, kesuburan tanah, analisis tanah, aluvial, Papua BaratAbstract: During succesional season vegetation is one of major compound to increase soil fertility. The purpose of this study was to analyzed and description dominant vegetation and their contribution to soil characteristic at fallow land 15 years old Womnowi Village, Sidey District, Manokwari. To determine dominant vegetations we used data important value index (IVI) of vegetation. Two depth of sample soils (0–10 cm dan 10–20 cm) were taken from one hectare area by composite technique. The dominant vegetation on fallow land dominated by Pometia pinnata, Dracontomelon dao, Octomeles sumatrana, Lansium domesticum, and Pimelodendron amboinicum respectively. Presence of O. sumatrana was indicated that the type of aluvial fallow land, further it is proven because the fallow land is close to the Womnowi River. Soil physical characteristic dominated by clay fractions, macronutrient was higher in depth 0-10 cm than 10-20 cm. Characteristic of soil shows acidic soils (pH 5.4–5.6), moderate of soil organic carbon (1.07–3.39%), total of nitrogen was low (0.17–0.53%), high available phosphorus (10.7–22.4 ppm), moderate cation exchange capacity (CEC) (10.50–20.32 cmol kg-1), very high base saturation (65.4–66.7%), and very lows of Al3+ and H+. Overall the order of CEC shows Ca > Mg > Na > K respectively confirmed aluvial soil and fast leached potassium in soil. Low potassium levels are thought be related to the use of the element for fruits formation of L. domesticum. During 15 year fallowed, dominant vegetation had influence to soil characteristic.Key words: tree vegetation, soil fertility, soil analysis, alluvial, West Papua
KATEGORI KONSERVASI VEGETASI TUMBUHAN BAWAH DI LAHAN BERA WOMNOWI DISTRIK SIDEY MANOKWARI PAPUA BARAT Slamet Arif Susanto; Heru Joko Budirianto; Agatha Cecilia Maturbongs
VOGELKOP: Jurnal Biologi Vol 2, No 1 (2019)
Publisher : Jurusan Biologi, FMIPA, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/vogelkopjbio.v2i1.13

Abstract

Trees vegetation are obviously dominate at the old fallow lands of Papua Indonesian. Fallow lands in the edge of primary forest is generally at Sidey District Manokwari. The purpose of this study is to determinate understory cover vegetation conservation based list of IUCN at the fallow land Womnowi Sidey Manokwari. An inventory of vegetation has done using analysis of vegetation―continuous line sampling technique, 2 x 2 meters for sampling seedlings and understory non-woody plant cover and 5 x 5 for saplings. At one hectare fallow land we found 1482 an individual of 122 species understory cover, only 158 an individual of 22 species had entered in IUCN redlist. Species with status least concern (LC) are dominate (>80%) compare with status data deficient (DD), near threatened (NT), and vulnerable (V). The important value index (IVI) of species on list IUCN showing 22.60% at seedlings and non-woody understory cover and 19.81% at the saplings phase. Aglaia odorata Lour.(seedling and sapling) is LC category, Intsia bijuga (Colebr.) Kuntze (seedling) V category, and Pandanus tectorius var., uapensis (non-woody plant) DD category, each species is the only one. The further study should be more intensive compare primary forest and old fallow lands of Papua―the conservation list of understory cover vegetation is lowest, so we conclude this is obviously understory vegetation at old fallow lands.Key word: fallow land, conservation, Sidey, understory, analysis of vegetation
Analisis Vegetasi Di Area Kebun Kakao Milik Masyarakat Lokal Papua Distrik Sidey Manokwari, Papua Barat Slamet Arif Susanto
Jurnal Pro-Life Vol. 9 No. 3 (2022): November
Publisher : Program Studi Pendidikan Biologi Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/jpvol6Iss2pp102

Abstract

Cocoa (Theobroma cacao L.) cultivation by local communities in Papua Indonesia is still done traditionally using shade plants which generally grow naturally. The purpose of this study was to identify trees that grow naturally in three cocoa plantation areas of the local tribe, Sidey District Manokwari, West Papua. This research is an exploratory study using vegetation analysis techniques. Vegetation data collection was carried out using a 20 m × 20 m nested square plot method. The results showed that there were variations in the composition of vegetation and environmental parameters in the three research locations. Overall 70% is dominated by seedlings and saplings while only 30% of mature trees. The Womnowi Village (KW) location was dominated by Dracontomelon dao, Homalium foetidum and Octomeles sumatrana trees, while at the Kaironi Village (KK) and Sidey Makmur Village (SM) locations it was dominated by Durio zibethinus, Piper aduncum and Naphelium lappaceum. The index of diversity and evenness in the seedlings and saplings group was categorized as moderate, while in the mature tree group it was classified as low. Cocoa shade trees in the KW location have species similar to natural forests and need further investigation in terms of ecological and conservation functions.
Co-Authors , Triadiati Agatha Cecilia Maturbongs Agustinus Kilmaskossu Ahoren, Linda Bramasta, Dwika Dianti Mayadika Putri Eko Tenoyo Sriwidodo Emmanuel Manangkalangi Fajar Ria Dwi Natalia Sianipar Heru Joko Budirianto IBNUL QAYIM Ilma Rahmawati Johanis Paulus Kilmaskossu Made Ari Sanjaya Maturbongs, Agatha Cecilia Maturbongs, Rudi A. Miftanti, Mar'ah Paskalina Theresia Lefaan Peniwidiyanti Peniwidiyanti Rahmawati, Ilma Ramadhanty, Pramesty Wulan Sadsoeitoeboen, Maria Justina Simeon Abdi Putra Simeon Abdi Putra Sinipar, Fajar Ria Dwi Natalia Sulistijorini Susim, Henok Sutarno, Simon