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COCOS
Published by Universitas Sam Ratulangi
ISSN : -     EISSN : 27150070     DOI : 10.35791
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal ini memuat materi yang berkaitan dengan Pertanian. Menyangkut Tanah, Budidaya Pertanian, Proteksi Tanaman, Teknologi Pertanian dan Sosial Ekonomi Pertanian
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 831 Documents
 77   78   79   80   81 
CADANGAN KARBON PADA POHON DI TAMAN HUTAN RAYA GUNUNG TUMPA H. V. WORANG Wahyu D. P. A. Sardi; Reynold P. Kainde; Wawan Nurmawan
COCOS Vol. 14 No. 3 (2022): EDISI JULI-SEPTEMBER 2022
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v8i8.38736

Abstract

Abstract Taman Hutan Raya Gn. Tumpa H. V. Worang is an area that has an area of 208.81 ha with an ecological function that is able to absorb carbon because of the canopy stratification formed from a variety of vegetation, including trees, poles, saplings, seedlings where each type of plant will carry out a cycle of carbon and oxygen exchange. This study aims to analyze the total carbon storage of each tree species and the total accumulation of carbon stored in trees in the Gunung Tumpa H.V. Forest Park. people. The method used in this study is the Non-Destructive Sampling method with an observation map plot of 100 m x 100 m at the research site. The results of this study showed that there were 21 tree species with 88 individuals from 17 families where Alstonia Scholaris had the highest carbon storage value, namely 389.35 tons/ha. followed by Palaquium obavatum with a carbon storage value of 78.15 tons/ha, Dracontomelon dao 78.08 tons/ha, Lithocarpus celebicus 74.24 tons/ha, Calophyllum soulattri 35.57 tons/ha. Then the carbon value in Artocarpus atilis is 6.77 tons/ha, Dhyosphiros sp. 12.77 tons/ha, Dillenia ochereata 5.07 tons/ha, Euiginia aquea 7.28 tons/ha, Ficus benjamina 29.30 tons/ha, Ficus fistulosa 30.33 tons/ha, Gnetum gnemon 8.07 tons/ha ha, Homalium foetidum 4.80 tons/ha, Knema latericia 10.83, Laphopetalum javanicum 7.23 tons/ha, Myristyca fatua 9.67 tons/ha, Macaranga tanarius 4.63 tons/ha, Pterocarpus indicus 24.41 tons /ha, Pterospermum javanicum 10.48 tons/ha, Schleichera oleosa 8.38 tons/ha, and Terminalia copelandii 2.94 tons/ha and Accumulated total carbon storage trees in TAHURA Gn. Tumpa H.V. Worang is 838.35 tons/ha (good category). The area is about 208.81 hectares, the potential for storing carbon is 175,055.86 tons of carbon. Keywords: carbon, trees, Forest Park Gunung Tumpa H. V. worang, carbon stocks
KEANEKARAGAMAN SERANGGA TANAH DI TAMAN WISATA ALAM (TWA) BATUPUTIH Nita Patale; Terry M. Frans; Marthen Th. Lasut Marthen Th. Lasut
COCOS Vol. 14 No. 3 (2022): EDISI JULI-SEPTEMBER 2022
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v8i8.38738

Abstract

Abstract Soil insects are a type of insects that inhabit litter or soil. In almost of their lives the abundance and dominance of insects in a ecosystem is influenced by litter on the forest superficies. The purpose of this research is to determine the diversity of soil insects in coastal forest and lowland forest ecosystem types in Batuputih Nature Park (Taman Wisata Alam Batuputih). This research used Purposive Sampling method at two different locations: Coastal forest and lowland forest. The sampling technique that used in this research is trap. Based on the result of research conducted in Taman Wisata Alam (TWA) Batuputih, there are 7 species of soil insects found in the coastal forest ecosystem type, 12 species in the lowland forest ecosystem type, and 2306 individual soil insects from 11 families contained in these ecosystems. The spesies diversity index in Taman Wisata Alam (TWA) Batuputih is low with the spesies diversity index in coastal forest (H’=1.126), lowland forest (H’=1.219) and both of those ecosystems (H’=1.257). The spesies abundance and soil insects spesies diversity index in lowland forest ecosystem types are higher than coastal forest ecosystem types. Key Words: Soil Insect, Diversity, Taman Wisata Alam Batuputih
KAJIAN KANTONG SEMAR DI HUTAN LINDUNG GUNUNG MAHAWU Anggel Ulundeda; Marthen T. Lasut; Euis F.S. Pangemanan
COCOS Vol. 14 No. 3 (2022): EDISI JULI-SEPTEMBER 2022
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v8i8.38799

Abstract

ABSTRAK This study aims to determine the presence of pitcher plants in HL Gunung Mahawu. The research was carried out from August to October 2021. In collecting semar bag data, observations were divided into 8 points, namely: 1. Determination of Coordinate Points 2. Observation of the type of pitcher plants, 3. Number of individuals, 4. Number of bags, 5. Morphology of pitcher plants, 6. Elevation, and 7. Slope. This observation was carried out from morning to evening at 07:00-17:00 WITA. HL Gunung Mahawu found 6 locations for the distribution of pitcher plants which grow on the edge of the crater of Gunung Mahawu, pitcher plants in HL Gunung Mahawu found 1 species, namely N. maxima, totaling 936 individuals. This type of pitcher plants has two different color variations in the bag, namely green and green with brownish patterns, the total number of bags is 1,076, on average in one individual there are 6 to 8 bags. N. maxima found in HL Gunung Mahawu grows in open areas at an elevation of 1295-1323 m with a slope of 46% - 54%. Keywords: Study of pitcher plant, HL Gunung Mahawu
TINGKAT PENYINTASAN Lithocarpus celebensis DI TAMAN HUTAN RAYA GUNUNG TUMPA Jecson Kumeser Msen; Johny S. asirin; Hard Napoleon Pollo
COCOS Vol. 14 No. 3 (2022): EDISI JULI-SEPTEMBER 2022
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v8i8.38802

Abstract

Abstrak This study aims to determine the survival rate of Lithocarpus celebensis in the Great Forest Park (TAHURA) Gunung Tumpa H.V. people. The research was carried out on December 17 to December 21, 2021. In collecting data on the survival rate of Lithocarpus celebensis, it was divided into two stages, namely: 1. Observing the entire area of the Gunung Tumpa Forest Park with the help of grids measuring 1 ha to ensure that no areas were damaged. not observed, and then the plants obtained will be measured stem and tree height to obtain the number of individuals from seedlings, weaning, poles, and trees. The tree to be obtained is given a point or coordinates. The results obtained in the Mount Tumpa area stated that the distribution of Lithocarpus celebensis was spread in clusters, in the Gunung Tumpa Forest Park there were 82 individuals of Lithocarpus celebensis found from all areas of the Mount Tumpa area. Lithocarpus celebensis .scattered throughout the Mount Tumpa area with an altitude of 500 to 620 above sea level. It is known that the survival rate of Lithocarpus celebensis in Tahura Gunung Tumpa is very low due to low availability of youth, from 16 stems/100 ha out of a total tree density of 8 stems/100 ha. The number of individuals with the smallest diameter or population successor regeneration (<18.9 cm) reached more than 79% of the Lithocarpus celebicus population in Mount Tumpa. in other words, the presence of youth is much higher than the parent tree (diameter > 55.7 cm). Concerns about the survival rate can arise because the presence of trees in the next diameter class (18.9-55.6 cm) is very low, which is only 10% of the total population
PENGARUH ELEVASI TERHADAP KEANEKARAGAMAN POHON DI KAWASAN GUNUNG TANGKOKO Johanes Daniel Mewengkang; Johny S. Tasirin; Maria Y.M.A. Sumakud
COCOS Vol. 14 No. 3 (2022): EDISI JULI-SEPTEMBER 2022
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v8i8.38803

Abstract

Abstract Mount Tangkoko is an ideal place for this research because the Mount area stretches from the coastal elevation to an altitude of 1099 meters asl. This study aims to determine the effect of elevation on the diversity of tree species in the Tangkoko Mountain area. The results of this study identified 26 tree species and 20 families of 15 plots divided into three specified heights, namely 0 m above sea level (coastal forest), 300 m above sea level, and 600 masl. The diversity index shows a value of 2.43 at an elevation of 0 m, a value of 2.11 at an elevation of 300 m, and 1.95 at an elevation of 600 m, with the number of tree species at each elevation obtained sequentially amounting to 16, 13, and 11 tree species. Each height is dominated by The different tree species were Kleinhovia hospita tree with INP 55.22%, Cananga odorata tree at 300 m elevation with INP 94.92% and Spathodea campanulata tree at 600 m elevation with INP 101.52%. The tree attributes analyzed in the Tangkoko Mountain area show a general pattern which is indicated by the effect of elevation on the tree. However, statistical analysis shows a comparison of less visible differences in tree attributes (Diversity Index, Base area, Number of species per elevation, Number of families per elevation and tree density) and total tree diameter of the three elevations plotted. Key Word : tree diversity, tangkoko, elevation effect, altitude, ivi, important value index, lowland forest Pendahuluan Pada umumnya pohon mempunyai fungsi yang sangat besar bagi kehidupan dibumi, tidak hanya memproduksi oksigen sebagai senyawa esensial bagi makhluk hidup, pohon juga mempunyai fungsi edaphis yaitu merupakan tempat tinggal dari berbagai jenis makhluk hidup, berfungsi sebagai biomassa dan fungsi ekologis lainnya. Berbeda jenis pohon dapat juga mempunyai fungsi yang berbeda, seperti pada pohon bergenus ficus, pohon dengan genus ficus pada umumnya memiliki rongga pada batangnya yang digunakan primata tarsius untuk dijadikan sebagai sarang sekaligus tempat hewan ini melindungi diri dari predator. Tidak hanya untuk hewan, simbiosis ini juga dapat terjadi antar pohon dan tumbuhan. Pohon jelas menjadi salah satu objek untuk adanya simbiosis pada ekosistem huta
INVENTARISASI JENIS PAKAN MONYET HITAM SULAWESI (Macaca nigra) DI SUAKA MARGASATWA MANEMBO-NEMBO Olivia S. M. Turangan; Hard N. Pollo; Johny S. Tasirin
COCOS Vol. 14 No. 3 (2022): EDISI JULI-SEPTEMBER 2022
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v8i8.38804

Abstract

ABSTRAK The threat to Macaca nigra is due to the increasing number of hunting by humans and the destruction of natural habitats that occur. Macaca nigra is hunted for consumption, trade and as pets for the community. The reduction in forest area causes Macaca nigra to lack shelter and food sources. The purpose of this study was to make an inventory of Macaca nigra feed in the Manembo-nembo Wildlife Sanctuary. The method used at the research location is the Transect Method (Line). Observations began by observing the home range of a group of Macaca nigra to place the plot line to be made. Based on the results obtained from the results of research conducted at the Manembo-nembo Wildlife Sanctuary, the number of types of feed found was 27 species from 15 families with 188 individuals. The highest number of individuals, 83 individuals, was from the Arecaceae family, and the lowest number of individuals, 1 individual, was from the Anacardiaceae and Malvaceae families
Pengaruh Naungan Terhadap Pertumbuhan Bibit Aquilaria malaccensis Lam. Di Persemaian BPDASHL Tondano Kima Atas Manado Sahrin Lingga; Marthen. Th. Lasut; Euis F. S. Pangemanan
COCOS Vol. 14 No. 3 (2022): EDISI JULI-SEPTEMBER 2022
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v8i8.38805

Abstract

Abstract Aquilaria malaccensis Lam. is a type of tree belonging to the agarwood tribe (Thymelaeaceae) which can be found in Bangladesh, Bhutan, India, Indonesia, Iran, Laos, Malaysia, Myanmar, Philippines, Singapore, and Thailand (Kamonwannasit, 2013). This study aims to determine the effect of shade on the growth of A, malaccsens seedlings. The treatment with shade had an effect on without shade (P1) 33.12 cm giving the highest average height increase since the beginning of the observation, while the treatment with shade P4 (90%) was 26.38 cm and the smallest shade treatment was P3 (90%) 25.86 cm (week II to week II). XIII) compared with other treatments.). stem diameter of seedlings of A. malaccensis in the treatment without shade P1 0.34 mm had the highest value compared to other treatments, while the treatment with shade P3 2 (75%) 0.2 mm and the smallest shade treatment P4 (90%) 0.16 mm during the observation period (week II – week XII). The increase in the number of leaves to the shade treatment was the highest P3 (75%) 17.2 leaves without shade P1 17.2 leaves while the lowest shade treatment was P4 (90%) to the increase in the number of leaves during the observation period (week II – week XIII). Keywords: Aquilaria malaccensis Lam., Effect of shade, Growth
INVENTARISASI JENIS KUPU-KUPU DAN TUMBUHAN PAKAN IMAGO DI AIR TERJUN DESA KALI DAN RANO PASU PEMANDIAN AIR PANAS DESA KEMBES, KABUPATEN MINAHASA Yan Ferdinandus Ramandei; Hard N. Pollo; Eva L. Baideng
COCOS Vol. 14 No. 3 (2022): EDISI JULI-SEPTEMBER 2022
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v8i8.38806

Abstract

Abstrak Tujuan Penelitian ini untuk menginventarisasi jenis kupu-kupu di Air Terjun Desa Kali dan Rano Pasu Pemandian Air Panas Desa Kembes dan menginventarisasi tumbuhan pakan imago. Metode penelitian yang digunakan ialah Metode Transek dengan mengikuti jalur yang sudah ada dan Metode Titik dengan atraktan. Jalur pengamatan sepanjang 500 m dengan lebar 5 m ke kiri dan ke kanan, serta 2 jalur pengamatan di setiap lokasi penelitian. Hasil penelitian ini menunjukkan bahwa jenis kupu-kupu yang diperoleh berjumlah 50 jenis, di antaranya 30 jenis di Air Terjun Desa Kali dan 38 jenis di Rano Pasu Pemandian Air Panas Desa Kembes. Tumbuhan pakan imago yang ditemukan di Air Terjun Desa Kali yaitu Crassocephalum crepidioides dan Lantana camara sedangkan pakan imago yang terdapat di Rano Pasu Pemandian Air Panas Desa Kembes yaitu Centrosema pubescens, Lantana camara, Premna, Solanum torvum dan Stachytarpheta jamaicensis. Kata Kunci : Inventarisasi Jenis Kupu-Kupu Dan Tumbuhan Pakan Imago Di Air Terjun Desa Kali Dan Rano Pasu Pemandian Air Panas
TINDAKAN SILVIKULTUR PADA HUTAN RAKYAT DI KECAMATAN LANGOWAN SELATAN, KABUPATEN MINAHASA Viena Angel Sarajar; Hard Napoleon Pollo; Reynold P. Kainde
COCOS Vol. 14 No. 4 (2022): EDISI OKTOBER-DESEMBER 2022
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.38916

Abstract

Abstract Community forests in North Sulawesi have played a significant role in meeting various needs for wood, ranging from firewood, building materials and other uses. The problem with community forest management in the study area is the inadequate knowledge of farmers about the importance of silvicultural measures in an effort to accelerate stand growth/increment. The purpose of this study was to determine the knowledge of farmers' abilities regarding the application of silvicultural measures and their application. This study uses the interview method to public knowledge about the importance of silvicultural action. The villagers of Winebetan, Kawatak, Kayuuran Atas, Noongan in the Community Forest area in South Langowan District, Minahasa Regency have partly understood the purpose of silvicultural actions in managing community forests. Where this can be seen from the application of silvicultural actions that have been carried out in order to utilize land to get maximum results from community forest management. Keywords: Community Forest, Community Forest Management, Silvicultural Action
IDENTIFIKASI POLA AGROFORESTRI DI DESA TOGID, KECAMATAN TUTUYAN, KABUPATEN BOLAANG MONGONDOW TIMUR Yuliyana Christina Laratmase; Semuel P. Ratag; Euis F. S. Pangemanan
COCOS Vol. 14 No. 4 (2022): EDISI OKTOBER-DESEMBER 2022
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.38917

Abstract

Abstract Agroforestry is a system of land use in which forestry crops (woody perennial) is combined with agriculture crops and livestock or fisheries in one unit of land. There has been no data and informations on agroforestry patterns in Togid Village, Tutuyan District, East Bolaang Mongondow Regency until now . This study aims to describe agroforestry patterns in Togid Village, Tutuyan District, Bolaang Mongondow Timur Regency in February 2021. The methods used in this study are field surveys, interviews and data retrieval. Respondents were obtained by purposive sampling with the criteria that farmers practice agroforestry systems in cultivating their respective gardens. The data obtained were then analyzed descriptively and presented in tabular form.. The results showed that there are two agroforestry patterns applied by farmers, namely the agrisilvicultural pattern and the agrosilvopasture-fishery pattern. There are nine combinations of 14 respondents' garden lands that are cultivated with plants - animals - fish.One of the 14 respondent's gardens is cultivated with an agrosilvopasture-fishery pattern, carried out by one respondent, while the other 13 gardens are cultivated with an agrosilvicultural pattern. In combination with woody plants, from 14 observed gardens, it was found that there were food crops in eight gardens, spice plants in nine gardens, ornamental plants in three gardens, fodder sources in caged livestock in four gardens, and fish in one. garden land The existence of a garden with an agroforestry pattern can make a very significant contribution to the community in Togid Village both in terms of economy and ecology Keywords: Agroforestry Pattern, Togid village

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