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All Journal Biospecies Bioscience Jurnal Biologi Tropis JURNAL PENDIDIKAN TAMBUSAI PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Pelita Eksakta JURNAL SAINS dan INOVASI PERIKANAN Jurnal Serambi Biologi
Kardiman, Reki
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Immunology & microbiology Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Struktur Tegakan Mangrove Pada Kawasan Pengembangan Wisata Teluk Mandeh Sumatera Barat Roza, Sri Yenica; Kardiman, Reki
JSIPi (JURNAL SAINS DAN INOVASI PERIKANAN) (JOURNAL OF FISHERY SCIENCE AND INNOVATION) Vol 8 No 2 (2024): JURNAL SAINS dan INOVASI PERIKANAN
Publisher : Pascasarjana Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Peningkatan wisata and ekonomi masyarakat pesisir umumnya menghadirkan dampak negatif pada ekosistem bakau atau mangrove. Penelitian ini ditujukan untuk mengeksplorasi struktur pohon pada populasi mangrove di kawasan pengembangan wisata teluk Mandeh Pesisir Selatan Sumatera Barat. Data berupa diameter pohon mangrove lebih dari 5 cm diukur pada dua buah line transek dengan 10x10 m plot ditempatkan secara selang, keseluruhan plot mencakup 1600 m2 area. Kerapatan dan tutupan relatif, serta analisis sebaran basal area secara vertikal dan horizontal dilakukan dengan program R 2024. Penelitian ini hanya menemukan dua spesies pohon mangrove yaitu Rhizophora apiculata dan Lumnitzera littorea, keseluruhannya berjumlah 373 pohon pada area sample atau sama dengan 2500 pohon per hektar. R. apiculata adalah jenis yang sangat dominan dengan rata-rata basal area 37 cm2, tersebar dari zona belakang hingga depan, tetapi tutupan yang menurun seiring pertambahan jarak ke arah laut. Ekosistem mangrove pada kawasan ini masih tergolong baik karena kerapatan dan tutupannya masih di atas standar baku mutu.
Vegetation Structure of Bukit Barisan Protected Forest I Sub DAS Lubuk Paraku Lubuk Kilangan District Padang City Ramadhani, Suci; Leilani Eka Putri, Irma; Satria, Rijal; Kardiman, Reki
Jurnal Serambi Biologi Vol. 8 No. 4 (2023): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/srmb.v8i4.234

Abstract

Vegetation plays an important role in overcoming hydrological processes in an area, including protected forest areas. Changes in vegetation cover in protected forests will affect the water flow of a watershed ecosystem. However, there is still a lack of information about the vegetation structure of the Bukit Barisan I protected forest, so it is important to do research to find out the vegetation that makes up the Bukit Barisan I protected forest, the Lubuk Paraku Sub-watershed in Lubuk Kilangan District, Padang City. The research was conducted from November 2022 - March 2023. This type of research is descriptive using a survey method. For field data collection, the single plot method was used in 2 areas, the natural forest area and the forest adjacent to the garden. In each area, 3 single plot plots were made, 2 x 2 m plots for undergrowth and seedlings, 5 x 5 m for saplings, 10 x 10 m for poles, and 20 x 20 m for trees. Found at the seedling stage 145 individuals from 20 families, saplings 51 individuals from 10 families, pole stage 29 individuals from 10 families and tree stage 48 individuals from 12 families. The most individuals at the seedling level are included in the Araceae family, the most individual saplings and trees are included in the Moraceae family, the most individual pole stages are included in the euphorbiaceae family. Keywords: structure, protected forest, Lubuk Paraku watershed
Structure and Composition of Vegetation at Parak Ecosystem in Nagari Lubuk Pandan District 2X11 Enam Lingkung Padang Pariaman Regency Fadhlurrohman, Reza; Anhar, Azwir; Kardiman, Reki; Eka Putri, Irma Leilani
Jurnal Serambi Biologi Vol. 8 No. 4 (2023): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/srmb.v8i4.281

Abstract

Parak is the most common agroforestry site, especially on dry land in the form of gardens or fields. The term parak is only used by people in West Sumatra, and is a release of the ecosystem between agricultural land and forests. Parak has many different species, with many trees, and a complex and layered vertical structure. The purpose of this study was to determine the structure and composition of vegetation in the Parak ecosystem in Nagari Lubuk Pandan, 2X11 Enam Lingkung District, Padang Pariaman Regency, West Sumatera. The method used is a field survey method by making observation plots measuring 10m x 10m for trees and sub-plots 5m x 5m for poles, 2m x 2m for undergrowth placed in the parak area in Nagari Lubuk Pandan District 2X11 Enam Lingkung, Padang Pariaman Regency, West Sumatera. The results of this study obtained the highest INP value, namely the type Durio zibethinus L. with an INP value of 32.57. The index value of hostility in the parak ecosystem in Nagari Lubuk Pandan is high and community stability is high with a diversity index of 3.50. The composition of plant species in the parak ecosystem consists of 61 plant species with 35 different families.
TREE COMMUNITY STRUCTURE IN THE PARAK ECOSYSTEM IN TANJUNG RAYA, AGAM DISTRICT Zainal Umar, Muhammad; Kardiman, Reki
Jurnal Serambi Biologi Vol. 8 No. 4 (2023): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/srmb.v8i4.297

Abstract

Parak is one of the transitional ecosystems from agricultural land and forests, it can also be called agroforestry. Parak agroforests produce a variety of forest products that are both for sale and for household needs including construction timber, firewood, and non-timber products such as fruit, forest vegetables and medicines. The purpose of this study was to determine the community structure of trees in the Parak ecosystem in Tanjung Raya District, Agam Regency. This type of descriptive research using field survey methods. Data collection was carried out at 4 locations by making 10 observation plots at each location in Tanjung Raya District, Agam Regency. At each location area a 20x20 plot is made to measure the trees contained in the plot. The results of this study obtained data that there were 31 species with a total of 959 individuals. The highest IVI value at location 1 Cinnamomum verum was 61.45. The highest IVI was at location 2 Myristica fragrans of 86.08. The highest IVI at location 3 Cinnamomum verum was 66.63 and at location 4 was obtained by Durio zibethinus of 56.44. The species diversity index (H') at location 1 was 2.29, at location 2 was 1.59, at location 3 was 1.68 and at location 4 was 2.78. While the overall obtained is 3.31. The species diversity index (H') at locations 1,2,3 and 4 belongs to the medium category, and overall belongs to the high category.
Inventory of Mangrove Species in Nagari Pilubang, Sungai Limau District, Padang Pariaman Regency, West Sumatra Taufiq, Muhammad Afif; Putri, Irma Leilani Eka; Kardiman, Reki; Satria, Rijal
Jurnal Serambi Biologi Vol. 9 No. 1 (2024): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/srmb.v9i1.310

Abstract

Mangroves have two meanings, the first refers to plant communities or forests that are able to tolerate salinity or saltwater conditions (aquifers). While the second refers to individual plant species, mangrove species inventories are also important in a global context, given the role these ecosystems play in storing carbon and protecting coasts from storms and erosion. This study aims to inventory of mangrove species in Nagari Pilubang, Sungai Limau District, Sungai Limau Regency, West Sumatra. This study used the Spot Check method. The results of the inventory of mangrove species at the observation location showed that there were 17 species from 16 families that make up the mangrove forest observed. True mangroves include Sonneratia caseolaris, Nypa fruticans, Acrostichum aureum, Acanthus ebracteatus, Acanthus ilicifolius, while the following mangroves include Hibiscus tiliaceus, Derris trifolia, Dolichandrone spathacea, Pandanus tectorius, Cerbera manghas, Melastoma candidum, Ardisia elliptica, Glochidion littorale, Barringtonia asiatica, Calophyllum inophyllum, Morinda citrifolia, and Wedelia biflora.
Inventory of Plant Types as Commercialized Craft Products in Bukittinggi, West Sumatra Yunita, Aulia; Kardiman, Reki; Vauzia, Vauzia; Satria, Rijal
Jurnal Serambi Biologi Vol. 9 No. 1 (2024): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/srmb.v9i1.313

Abstract

Non-Timber Forest Products (NTFPs) are an appropriate opportunity to develop, one of which is by utilizing NTFPs as craft products that can support the economy of communities around the forest. This research was conducted to collect information about what types of NTFP products are in Bukittinggi. Data analysis in this research was carried out descriptively, including displaying data on craft types, plant types and plant parts used in the table. Based on the results of research and interviews regarding types of NTFP plants that are used as commercial products (crafts), there are five types of plants that are used as craft products, including bamboo (Bambusa spp.), rattan (Calamus spp.), coconut (Cocos nucifera L.) , water hyacinth (Eichhornia crassipes Mart.), and pandan (Pandanus spp.). This type of plant is used as raw material for woven crafts. Bamboo makes bansi, bracelets, tissue holders and curtains. Rattan produces rings, tangguk, bags. Coconuts become piggy banks and bags from shells and brooms from leaf bones. Water hyacinth and pandan become various forms of bag products.
Contribution of Goat Manure Organic Fertilizer to the Number of Rice (Oryza sativa L.) Tillers Sunarsan, Debra Fortuna; Anhar, Azwir; Kardiman, Reki; Vauzia, Vauzia
Jurnal Serambi Biologi Vol. 9 No. 1 (2024): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/srmb.v9i1.332

Abstract

The relatively high and continuous use of inorganic fertilizers in rice cultivation can cause negative impacts on the environment. Minister of Agriculture Regulation Number: 40/2007 recommends providing organic fertilizer combined with inorganic fertilizer with the aim of improving soil condition and fertility. This research aims to determine the effect of the composition of organic goat manure and inorganic fertilizer on the number of rice tillers. This research was structured using a Completely Randomized Design. The treatment given was a comparison of organic fertilizer to inorganic fertilizer consisting of 6 treatments and 4 replications. The treatments given consisted of A(100% NPK Fertilizer + 0% Goat Manure Fertilizer), B(80% NPK Fertilizer + 20% Goat Manure Fertilizer), C(60% NPK Fertilizer + 40% Goat Manure Fertilizer), D(40% NPK Fertilizer + 60% Goat Manure Fertilizer), E(20% NPK Fertilizer + 80% Goat Manure Fertilizer), F(0% NPK Fertilizer + 100% Goat Manure Fertilizer). Observational data was analyzed by analysis of variance (ANOVA) using the SPSS application. The results showed that the use of inorganic NPK fertilizer combined with organic goat manure had no significant effect on the number of offspring. The composition of inorganic NPK fertilizer and organic goat manure gave the same response to the number of rice tillers.
Kontribusi Pupuk Organik Kotoran Sapi Terhadap Tinggi Tanaman Padi (Oryza sativa L.) Syahfitri, Aulia Insyani; Anhar, Azwir; Violita, Violita; Kardiman, Reki
Jurnal Serambi Biologi Vol. 9 No. 1 (2024): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/srmb.v9i1.339

Abstract

Continuous use of inorganic fertilizers on rice plants has a negative impact on soil productivity and the environment so that plant growth is disrupted. Therefore, it can be used to reduce the impact of using inorganic fertilizers by using organic fertilizers. This research aims to determine the effect of the composition of organic cow dung fertilizer and inorganic fertilizer on the growth of rice plants which was carried out from July to November 2023 at the Plant Physiology and Wire House Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Padang State University. This research was structured using a Completely Randomized Design (CRD) consisting of 6 treatments and 4 replications. The treatment given consisted of A = 100% NPK Fertilizer + 0% Cow Manure, B = 80% NPK Fertilizer + 20% Cow Manure, C = 60% NPK Fertilizer + 40% Cow Manure, D = 40% NPK Fertilizer + 60% Cow Manure Fertilizer, E = 20% NPK Fertilizer + 80% Cow Manure Fertilizer, F = 0% NPK Fertilizer + 100% Cow Manure Fertilizer. The results showed that the influence of the composition of inorganic NPK fertilizer and organic cow dung fertilizer for rice plants had no significant effect on plant height at 15, 30, 45 and 60 HST.
Litter Decomposition on the Old Parak Ecosystem in Maninjau West Sumatra Indonesia Kardiman, Reki; Simangunsong, David
Bioscience Vol 8, No 2 (2024): Biology
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bsc.v8i2.125864

Abstract

This study aimed to analyze the rate of litter decomposition on the old parak ecosystem in Maninjau, Tanjung Raya District, Agam Regency, West Sumatra Indonesia. Data were collected at four different vaillages, each was located at one compas point surrounding the Maninjau Lake. The sites were purposively selected according to the zonation of vegetation, where the parak ecosystem appeared between paddy field and forest. Three of 20x20 m plots were established at each location, in which one of 1x1 meter subplot was established in the centre, given 12 subplots in total. All litters within the subplots were collected and measued the wet weight, about 800 grams of the litters were collected, 200 grams of it were dried, while other 600 grams were placed into six litter bags (100 grams each) and placed again at each subplot. Two litter bags were collected each month, dried and analyzed the rate and percentage of decomposition. The results showed that the average litter decomposition rate at parak ecosystem in Maninjau was 0.6 gr/day, and 50% litters were decompossed in 90 days. The rate of decomposition of litter varied between loactions, where the lowest decomposition rate was found at the western part of the Maninjau Lake, especially for leaves litters. This study revealed that a park ecosystem in Maninjau requires six month decompotition to completely change litters into soil, and with about 6.4 tons of litters per hectar, resulting 5 tons of biomass, this provides 5 tons of organic matters for each hectare of parak ecosystem.
Conflict between Trees and Infrastructures in the Main Campus ofState University ofPadang Rahman, Natasya Aulia; Kardiman, Reki; Roza, Sri Yenica
Bioscience Vol 8, No 2 (2024): Biology
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bsc.v8i2.125870

Abstract

Infrastructure is major supporting factor development a state and trees are planted throughoutthe infrastructure for the green aspect, which then promotes a conflict. Conflicts defined as tree growth atadjacent infrastructure,growth of roots causing a damages as in the main campus of State University ofPadang. This study to investigate the conflict between trees and infrastructure in the main campus of StateUniversityofPadang.Treespecies,diameter,size,canopy,distancetreetoinfrastructure,numberinfrastructureandtypeinfrastructureweresampledfrom195treesconflictandnotconflict.Alltreesbelongingto 12 species diameterfrom 26,75 cmto 114,01 cm(58,8392 cm onaverage), and canopyfrom300 m² to 825 m² (555,7692 m² on average). Trees planted to concrete by 71%, 33% conflicted, paving blockby 21%, 12% conflicted, and 8% to asphalt with 55% conflicted. Conflicted trees varied species but mostlyplanted <1 m from infrastructures, tended to larger diameter and narrow canopy cover. This study showedthere is 50% risk infrastucture damage planted close and tree species with lower potential conflict prioritizedforshade treesacrossinfrastructure. 
Co-Authors Achyar, Afifatul Aini, Quratul Athiyah Khairunnisa, Febby Azwir Anhar Desmayanti, Resti Djoelvinanda, Habibullah Dwi Hilda Putri Dwi Puspita Putri Fadhlurrohman, Reza Fadilaturahmah Fadilaturahmah Fardilla, Midratul Fevria, Resti Filza Yulina Ade Harli Wahyu Salman Irma Leilani Eka Putri Khumaira, Kayla Anaya Leilani Eka Putri, Irma Lesmina, Fadilla Mardaniyah, Annisa Miftahul Jannah Moralita Chatri Nazhifah, Naura Novita, Yeni Pebriyeni, Silvi Pratama, Chelsylia Dara Pratama, Sandi Fransisco Putri, Cici Adelia Putri, Irma Leilani Eka Rahman, Natasya Aulia Rahmi Kurniati Roza, Sri Yenica Satria, Rijal Selaras, Ganda Hijrah Simangunsong, David Siti Aisyah Suci Ramadhani, Suci Sulaeman, Nabila Sunarsan, Debra Fortuna Syahfitri, Aulia Insyani Taufiq, Muhammad Afif Valofi, Nagra Aulia Vauzia, Vauzia Violita Violita Wawan Sujarwo Wira Aina, Zahratul Yunita, Aulia Zainal Umar, Muhammad