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All Journal Bioscience Jurnal Biologi Universitas Andalas EnviroScienteae Jurnal Biologi Tropis Jurnal Sains Natural Jurnal Biosense Bioscientist : Jurnal Ilmiah Biologi

Chairul

Universitas Andalas

Author-ID : 447361

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Immunology & microbiology Medicine & Pharmacology Public Health Social Sciences

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Carbon Stock Of Seagrass In Karang Tirta’s Coastal Area, Padang Firda Az zahra; Chairul Chairul; Indra Junaidi Zakaria
Bioscience Vol 4, No 1 (2020): Biology
Publisher : UNIVERSITAS NEGERI PADANG

The seagrass beds are the spawning, nursery, and the feeding ground for some oceanic biota. It’s also can trapped the sediment and stabilized the substrate so the waters looks clear. Beside those abilities, seagrasses are also can store the carbon. The research was conducted in karang tirta’s coastal area, padang city to analyze the carbon stock of seagrass that stored within their biomass. The biomass was analyzed by harvesting the seagrass at transect 25x25cm, while the carbon stock was analyzed by using walkley & black method. Seagrass beds in karang tirta’s coastal has 14,1 ha (142.546,36 m2) distribution area and it’s stored 18,05 tons of carbon. based on these result the seagrass beds in karang tirta’s coastal area has stored 1,2 tons C/ha. the highest carbon stock has found in the below ground, especially in their rhizomes.

Analisis Vegetasi Dasar di Bawah Tegakan Jati Emas (Tectona grandis L.) dan Jati Putih (Gmelina arborea Roxb.) di Kampus Universitas Andalas Indah Asmayannur; - Chairul; Zuhri Syam
Jurnal Biologi Universitas Andalas Vol 1, No 2 (2012)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.1.2.%p.2012

The analysis of understory vegetation on Jati Emas (Tectona grandis L.) and Jati Putih (Gmelina arborea Roxb.) stand in Andalas University campus was conducted from May until July 2012. The objectives of this research were: to determine species composition, structure and diversity index of species. The method of this research was quadratic method with line 1 m x 1 m. The results were found 22 families, 43 species and 624 individuals. The highest importance value was dominated by Gleichenia linearis (29.7%) at Jati Emas Stand and Melastoma malabathricum (38.19%) at Jati Putih Stand. Diversity index (H’) had value were 2.88, 2.81, 2.46 and it’s categorizhed as middle diversity. The higher simillarity index was found between Jati Emas and Jati Putih stand (40.74%), next between Jati Emas and without Jati stand (24%) was found as middle simillarity index and the lower similliarity index was found between Jati Putih and without Jati stand (13.04%).Keywords: Understory, Tectona grandis, Gmelina arborea

Analisis Vegetasi Gulma pada Perkebunan Kelapa Sawit (Elais quineensis jacq.) di Kilangan, Muaro Bulian, Batang Hari Ade Adriadi; - Chairul; - Solfiyeni
Jurnal Biologi Universitas Andalas Vol 1, No 2 (2012)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.1.2.%p.2012

A vegetation analysis of weed in palm oil plantation (Elaeis quineensis Jacq.) in Kilangan Muaro Bulian, Batang Hari has been conducted from February to May 2012 by using quadrate method. Twenty four – 1 m2 plots were placed using purposive sampling method. The result showed that weed composition in palm oil plantation composed by 20 families, 47 genera, 56 spesies and 3934 individuals. Paspalum conjugatum was highest SDR 19.48% (1029 individuals), and the lowest was Cuphea platycentra SDR 0,19% (2 individuals) in palm oil plantation. Index diversity of weed was H’ = 3.14.Keywords : Elaeis quineensis Jacq, composition, structure

Komposisi dan Struktur Tanaman Pekarangan Dataran Tinggi di Nagari Alahan Panjang Kabupaten Solok Dwi Nofa Rina; - Chairul; - Solfiyeni
Jurnal Biologi Universitas Andalas Vol 1, No 2 (2012)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.1.2.%p.2012

This study was conducted from March to May 2012 at Nagari Alahan Panjang, Kecamatan Lembah Gumanti, Solok. The purpose of this study was to identify the composition and structure of home garden at Alahan Panjang. This study used purposive sampling method. The result shows that the composition of home garden plants consists to 49 families, 70 genus, 95 species and 3103 inviduals. Brassica oleracea was the most common species of vegetable plant with the highest value (15.381%) and diversity index was 3.88 which classified into the highest various criteria.Keywords: composition, structure, home garden, highland

Uji Mulsa Organik Terhadap Gulma Dan Produksi Kacang Hijau (Phaseolus radiatus L.) Martha Aulia Reyndi; Chairul Chairul; Zuhri Syam
Jurnal Biologi Universitas Andalas Vol 4, No 2 (2015)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.4.2.%p.2015

We experimentally studied the effect of organic mulches on weeds and yield of green beans (Phaseolus radiatus L.) have been conducted at green house and Laboratory of Plant Ecology, Departement of Biology, Faculty of Natural Sciences, Andalas University, Padang, from January to May 2014. The aims of this study were to determine the effect of different mulches (Mikania micrantha and Tithonia diversifolia) on weeds and yield of green beans. The experiment used nested design with eight treatments and three replications. The first factor (factor A) was two kinds of mulch (i.e Mikania micrantha and Tithonia diversifolia). While the second factor (factor B) was the given doses of mulch (i.e 0 g/polybag, 300 g/polybag, 600 g/polybag and 900 g/polybag). The results showed that Mikania micrantha mulch gave the stronger effect to reduce weed numbers. Mikania micrantha mulch on 900 g/polybag increased plant height and Mikania micrantha mulch on 300 g/polybag increased seed yield. Whereas Tithonia diversifolia mulch on 600 g/polybag increased plant height and the number of primary branches and Tithonia diversifolia mulch on 300 g/polybag increased seed yield.

Jenis-Jenis Balanophoraceae Di Sumatera Barat Rizky Paramita Mukhti; - Syamsuardi; - Chairul
Jurnal Biologi Universitas Andalas Vol 1, No 1 (2012)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.1.1.%p.2012

The study of Balanophoraceae in West Sumatra has been conducted from January to May 2012. This study used observation and direct collection method at seven locations in West Sumatra and continued in Herbarium Andalas University (ANDA). The result indicated that three spesies of Balanophora (B. elongata, B. indica, and B.dioica) were identified. B. elongata has 9 female individuals, B. indica has 2 male individuals and 1 female individual, B. dioica 1 male individual and 1 female individual. The tuber was significant character to distinguish three studied spesies of Balanophora. B. elongata and B. dioica had a branched tuber but no branched tuber was detected in B. indica. The leaf color and the type of inflorescence were also valuable characters to differ between these species. It was assumed that most of the Balanophora species were found in habitat where the precipitation is 2500-5000 mm/year along mountain rain forest in Sumatra.Keywords: spesies, Balanophora, character, habitat, west sumatra

Pemberian Mulsa Jerami Padi (Oryza sativa) Terhadap Gulma dan Produksi Tanaman Kacang Kedelai (Glycine max (L.) Merr) Yuwindah Gustanti; - Chairul; Zuhri Syam
Jurnal Biologi Universitas Andalas Vol 3, No 1 (2014)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.3.1.%p.2014

An experiment of giving mulch of rice straw (Oryza sativa) on weeds and crop production soybeans (Glycine max (L.) Merr) has been carried out at the Laboratory of Plant Ecology, Andalas University, Padang from June to September 2013. The purpose of this study was to determine and define how mulch of rice straw suppress weed growth and increase the production of soybeans. This experiment used a Completely Randomized Design with five treatments and five replications. The result showed that rice straw mulching of 300g/10kg can suppressed the growth of weeds, and rice straw mulching of 500g/10kg could increase soybean production. All treatments showed significantly influence on the increase weight of soybeans product. Keyword: mulch, rice straw, soybean, weeds

Komposisi dan Struktur Seedling dan Sapling pada Lahan Pra dan Pasca Tambang Batubara PT. SLN di Kabupaten Dharmasraya - Solviana; Erizal Mukhtar; - Chairul
Jurnal Biologi Universitas Andalas Vol 1, No 2 (2012)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.1.2.%p.2012

Research about composition and structure seedling and sapling at pre and post coal mining PT. SLN have been carried out from April to July 2012 by using the belt transect with quadrate plot of size 10 x 10 m2. The results showed the composition of seedling at pre-mining was 6 families, 6 genera, 6 species and 38 individuals. In case of the composition of post coal mining was 4 families, 3 genera, 5 species and 20 individuals. Furthermore, the composition of sapling at pre coal mining was 12 families, 35 genera, 43 species and 304 individuals. In case of the composition of post coal mining was 6 families, 8 genera, 10 species and 102 individuals. The highest importance value for seedling at pre mining was Canthium dicoccum (47.37 %) and at post mining was Clibadium surinamense (58.18 %). The highest importance value for sapling at pre mining was Hevea brasiliensis (20.27 %) and at post mining was Macaranga tanarius (46.11 %). Diversity index of seedling at pre mining was 1.69 % and in post-mining was 1.55 %, where as for the sapling at pre mining was 3.51 % and at post mining was 2.16%. Index similarity seedling and sapling were 18 % and 3.8 % respectively.Keyword:composition, structure, pre and post coal mining, seedling, sapling

STRUCTURE OF THE SEAGRASS COMMUNITY IN KARANG TIRTA PADANG BEACH: STRUKTUR KOMUNITAS LAMUN DI PERAIRAN PANTAI KARANG TIRTA PADANG Firda Az Zahra; Aulia Azhar; Daimon Syukri; Ririn Fatma Nanda; Chairul Chairul; Indra Junaidi Zakaria
JURNAL BIOSENSE Vol 5 No 2 (2022): Edisi Desember 2022
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas PGRI Banyuwangi, Jalan Ikan Tongkol No 01, Telp (0333) 421593, 428592 Banyuwangi 68416

Seagrass bed on Karang Tirtas's coast consist of two species of seagrass namely Thalassia hemprichii and Enhalus acoroides. Thalassia hemprichii is the most dominating species with a frequency to be found about 96,3% while the frequency of Enhalus acoroides is 3,7%. Seagrass has ± 14 hektar distribution area with the pattern of distribution in group. The coverage of seagrass in Karang tirta's coastal included into poor cathegory. Meanwhile, the seagrass bed is one of the important ecosystem in the coastal area that are habitat for some other species and carbon sinc. Physical chemical factor's water of Karang Tirta's coastal area can support the growth of seagrass well except the temperature factor that is high.

The Estimation of Ground Carbon Stock in The Tourist Forest Area Ngalau Indah Payakumbuh Lily Rahmawati; Chairul chairul
Jurnal Biologi Universitas Andalas Vol 10, No 2 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.10.2.78-84.2022

Ngalau Indah tourist area, Payakumbuh City has a forest area and potential carbon stock. The aim of this study was to find out about the total biomass and carbon stock in Ngalau Indah tourist area, Payakumbuh City. The study would be from November until February 2022. Retrieval of data collection for trees and sapling had done with the nun-destruction method and understorey and litter had done with the destruction method. Based on the data, trees have obtained 12 families, and 18 species, and saplings have obtained 13 families and 16 species. The total biomass was 92,440 ton/ha was included 91,313 tons/ha for tress, 1,012 ton/ha for sapling, 0,053 tons/ha for understories, and 0,062 tons/ha for litter. Carbon stock of trees was 42,917 tonC/ha, sapling was 0,476 ton/ha, understories was 0,024 tonC/ha, litter was 0,029 ton/ha and total carbon stock was 43,446 tonC/ha.

Co-Authors - Solviana - Solviana Ade Adriadi Anita Mayang Sari Aulia Azhar Cleopatra Daimon Syukri Dwi Nofa Rina Erizal Mukhtar Firda Az zahra Indah Asmayannur Indra Junaidi Zakaria Kamelia Putri M. Nur Lidia Gusvita Nasra Lily Rahmawati Linda Agustin lola sutra islami arwin M. Idris Martha Aulia Reyndi Nurainas Nurainas Nurfitri Kartikasari Ririn Fatma Nanda Rizky Paramita Mukhti Savira Geovana Solfiyeni Solfiyeni Suwirmen Syamsuardi Syamsuardi Yuwindah Gustanti Zozy Aneloi Noli Zuhri Syam

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