scholarly journals Carbon stock and vegetation estimation the abandoned pond, Pulau Sembilan, North Sumatra, Indonesia

2021 ◽  
Vol 912 (1) ◽  
pp. 012006
Author(s):  
M Basyuni ◽  
E O Simanjutak ◽  
S Eddy ◽  
R Amelia
Keyword(s):  
Carbon Stock ◽  
Diversity Index ◽  
Stock Assessment ◽  
Carbon Potential ◽  
Morinda Citrifolia ◽  
Total Biomass ◽  
Rhizophora Mucronata ◽  
Rhizophora Apiculata ◽  
North Sumatra ◽  
Tree Sapling

Abstract The purpose of the study was to determine the species vegetation and carbon stock assessment derived from abandoned aquaculture ponds. Analysis of plant (tree, sapling, and seedling) was performed at Pulau Sembilan, Langkat, North Sumatra, Indonesia. The stage of the seedlings, saplings, and trees was analyzed from four transects. Each transect contained 100 m in length. Each estimated plot of a total of four transects comprised of 30 plots. The abandoned pond was dominated by Rhizophora apiculata and Bruguiera parviflora, the lowest on the species of Morinda citrifolia and Rhizophora mucronata. The diversity index of Shannon-Weiner was 1.44-1.72. The total biomass in the pond was 4,557.43 k/ha with a carbon potential of 2.10 tons/ha.

Carbon stock assessment through above-ground biomass of trees at different forest composition in Mt. Malindawag, Lubilan, Naawan, Misamis Oriental, Philippines

2021 ◽  
Vol 11 (01) ◽  
pp. 100-113
Author(s):  
M. G. Origenes ◽  
R. L. Lapitan
Keyword(s):  
Carbon Stock ◽  
Diversity Index ◽  
Stock Assessment ◽  
Mixed Forest ◽  
Forest Composition ◽  
Above Ground Biomass ◽  
Plantation Forest ◽  
Species Diversity Index ◽  
Ground Biomass ◽  
Number Of Individuals

It is documented that the amounts of carbon stored and its level of degradation in different forests compositions and different types of forest is mostly unknown, Philippines is no exemption as little was done in some places of this country. This study was conducted to assess carbon stock through above ground biomass of trees at different forest composition in Mt. Malindawag. There were three (3) 20m x 20m sample plots (quadrats) (400m2 equivalent to 0.04 ha) established as replicate plots provided with 50m intervals. Forest composition such as the Agroforestry area, mixed forest area and the Plantation forest were assessed in terms of the number of individuals, number of species, diameter, and height to calculate the biomass, tree biomass density as well as the carbon stock. Based on the results of the study conducted in different forest compositions of Mt. Malindawag, plantation forest has the highest carbon stocking rate. However, these results were not significantly different from the other forest composition. This was associated with a higher accumulated diameter, which resulted in higher biomass and eventually carbon stock. Species found in this forest composition are productive and have lesser number of individuals; therefore, there is lesser competition for resources such as light. Such a mechanism might contribute to the higher biomass and carbon stock. However, the result may not be right to other areas due to uncontrollable factors, anthropogenic and environmental factors. Hence, it is recommended to have further studies on areas where trees have similar age, species diversity index as well as stand development and site productivity for a more accurate and quantifiable carbon stock.

scholarly journals Structure Community of Mangrove at Tabulo Selatan Beach, Boalemo Regency

2019 ◽  
Vol 7 (1) ◽  
pp. 309
Author(s):  
Rusdiyanto Husuna ◽  
Adnan S. Wantasen ◽  
Ari B. Rondonuwu
Keyword(s):  
Diversity Index ◽  
Good Condition ◽  
Rhizophora Mucronata ◽  
Bruguiera Gymnorrhiza ◽  
Importance Value Index ◽  
Importance Value ◽  
Rhizophora Apiculata ◽  
Sonneratia Alba ◽  
Ceriops Tagal ◽  
Study Sites

This study aims to know the community structure of mangrove and the environmental condition in South Tabulo coast. Mean temperature at station 1, 2, and 3 was 310C, and water salinity varied between 28-30 ‰. Water pH was averagely 7 in all stations. Substrate measurements were visually done and through touches. Stations 1 and 2 had sandy muddy substrates, while station 3 was muddy. Mangroves of tree criterion were found 122 individuals of 7 species, Avicennia lanata, A. marina, Rhizophora apiculata, R. mucronata, Sonneratia alba, Bruguiera gymnorrhiza, and Ceriops tagal. Field observations showed that the highest species density was recorded in R. mucronata. The highest species frequency was found in S. alba, R. apiculata, and R. mucronata, while the highest species cover and importance value index were recorded in S. alba and R. apiculata dan R. mucronata. Based on diversity index, it was found that only 7 species were found in the study sites and it belonged to good condition. It indicates that the study sites are still in good ecological condition.Abstrak Keywords : Mangrove, community, Boalemo, diversity, importance value. ABSTRAK Penelitian ini bertujuan untuk mengetahui struktur komunitas mangrove serta kondisi lingkungan di Pantai Tabulo Selatan. Berdasarkan hasil penelitian di Pantai Tabulo Selatan untuk pengukuran suhu pada stasiun 1, 2, dan 3 diperoleh hasil rata-rata 310C, dengan salinitas bervariasi antara 28-30 ‰. Pengukuran pH air pada semua stasiun pengamatan diperoleh hasil rata-rata 7. Pengamatan substrat dilakukan secara visual dengan cara meraba tekstur substrat pada setiap stasiun, dan substrat yang terdapat di lokasi penelitian pada stasiun 1 dan 2 adalah lumpur berpasir, pada stasiun 3 berlumpur. Hasil penelitian menunjukan bahwa pada semua stasiun dengan kriteria pohon telah ditemukan 122 individu dari 7 spesies yang ditemukan yaitu Avicennia lanata, Avicennia marina, Rhizophora apiculata, R. mucronata, Sonneratia alba, Bruguiera gymnorrhiza dan Ceriops tagal. Berdasarkan pengamatana lapangan, kerapatan spesies tertinggi dimiliki oleh spesies Rhizophora mucronata, frekuensi spesies tertinggi dimiliki spesies S. alba, R. apiculata dan Rhizophora mucronata, penutupan spesies dan indeks nilai penting didapati spesies Sonneratia alba, Rhizophora apiculata dan R. mucronata.. Berdasarkan indeks keanekaragaman dapat dilihat bahwa hanya ada 7 spesies yang didapatkan pada lokasi penelitian dan termasuk dalam kriteria keanekaragaman baik. Hal ini menunjukkan bahwa di lokasi penelitian masih dalam kondisi ekologis yang cukup baik.Kata kunci : Mangrove, komunitas, Boalemo, keanekaragaman, nilai penting.

KAJIAN NILAI EKONOMIS DAN DAMPAK SOSIAL KEBERADAAN EKOSISTEM MANGROVE TERHADAP MASYARAKAT PESISIR

2020 ◽  
Vol 11 (1) ◽  
pp. 1-10
Author(s):  
Agus Putra A. Samad ◽  
Pitri Agustina ◽  
Mus Herri
Keyword(s):  
Avicennia Marina ◽  
Rhizophora Mucronata ◽  
Bruguiera Gymnorrhiza ◽  
Sonneratia Caseolaris ◽  
Rhizophora Apiculata ◽  
Xylocarpus Granatum ◽  
Bruguiera Parviflora

Langsa merupakan salah satu kota pesisir Aceh yang memiliki kawasan mangrove yang  sangat  potensial.  Kota  ini  memiliki  panjang  garis  pantai  16  km dengan luas kawasan mangrove sebesar 7.837 Ha. Keberadaan mangrove di wilayah ini menjadi aset strategis untuk dikembangkan menjadi basis kegiatan ekonomi untuk memakmurkan masyarakat dan meningkatkan pendapatan  asli  daerah. Tujuan utama penelitian ini adalah untuk melestarikan potensi sumberdaya ekosistem mangrove yang ada di Kota Langsa agar dapat memberikan fungsi ekologis dan ekonomis secara berkesinambungan kepada masyarakat disekitarnya. Kajian ini dilakukan menggunakan metode survei, analisa laboratorium dan observasi lapangan. Hasil pengamatan terhadap komposisi jenis tumbuhan yang terdapat di ekosistem mangrove menunjukkan 8 jenis tumbuhan mangrove yaitu: jenis Avicennia lanata, Avicennia marina, Bruguiera gymnorrhiza, Bruguiera parviflora, Rhizophora apiculata, Rhizophora  mucronata, Sonneratia Caseolaris dan Xylocarpus granatum. Nilai rata-rata parameter kualitas air di ekosistem mangrove secara beturut-turut adalah DO (6.3 ppm),salinitas (27 ‰), pH tanah dasar (6.0), pH tanah permukaan (5.08), pH air (7.33), suhu (30 oC) dan kecerahan (5 m).  Perhitungan terhadap nilai manfaat ekosistem mangrove meliputi: 1) Nilai manfaat langsung perikanan tangkap: Rp. 8.710.000.000 per tahun, 2) Nilai manfaat budidaya tambak: Rp. 93.940.000.000,- per tahun, 3) Nilai penahan abrasi dan banjir: Rp. 300.000.000,- per hektar per tahun, 4) Nilai sebagai penyediaan unsur hara: Rp. 28.634.000,- per tahun, 5) Nilai manfaat pilihan: Rp. 210.000.000,- per tahun dan 6) Nilai manfaat keberadaan: Rp. 1.464.493.000,- per tahun.  Nilai keberadaan ekosistem mangrove yang dinilai adalah Nilai Keaslian = 70 % (lebih dari asli), Nilai Keindahan Alam = 74 % (lebih dari indah), Nilai Kenyamanan = 66% (kondisi lebih dari nyaman),  dan Nilai Aspirasi masyarakat = 98 % (sangat didukung masyarakat). Alternatif  pengelolaan  dan  pemanfaatan  ekosistem  mangrove  yang diperkirakan cocok secara ekonomi dan ekologis terdiri dari beberapa kegiatan pilihan yaitu budidaya ikan, udang, tiram dan kepiting, budidaya ikan kerapu dan kakap, pengolahan buah dan daun mangrove, dan pengembangan obyek wisata.

scholarly journals Estimation on the Change of Above-Ground Carbon Stock in Arboretum University of Lampung

2018 ◽  
Vol 6 (2) ◽  
pp. 51
Author(s):  
Kristian Gomos Banjarnahor ◽  
Agus Setiawan ◽  
Arief Darmawan
Keyword(s):  
Carbon Stock ◽  
The Body ◽  
Total Carbon ◽  
Biomass Estimation ◽  
Total Biomass ◽  
Biomass Carbon ◽  
Process Plants ◽  
Carbon Dioxide Co2 ◽  
Non Destructive ◽  
Earth Temperature

Carbon dioxide (CO2) is a greenhouse gas that could increase earth temperature. Through the photosynthesis process, plants absorb CO2 then convert it into carbohydrates, then sequester it in the body of plants. The purpose of the study is to estimate the changes in the carbon stock at the Arboretum University of Lampung. The methods used were stock difference by counting the carbon changes or difference between carbon stored in 2010 and 2016. While the stand biomass estimation measured by trees general allometric equations with non-destructive sampling. The results showed that the total carbon was 46% of the total biomass. Carbon stock in 2016 were about 226.75 ton/ha, showing an increase of 59.72% or 84.78 ton/ha compared to in 2010’s. The increase was due to additional growth of 804 trees as a result of plantation activity and natural regeneration. Keywords: Arboretum, biomass, carbon, necromass, University of Lampung.

scholarly journals Pattern Zone Ecosystem of Mangrove in Juanga Village, Morotai Island District

2020 ◽  
Vol 4 (1) ◽  
pp. 11
Author(s):  
Kismanto Koroy ◽  
Sandra Hi. Muhammad ◽  
Nurafni Nurafni ◽  
Nurti Boy
Keyword(s):  
Natural Resources ◽  
Physical Environment ◽  
Middle Zone ◽  
Rhizophora Mucronata ◽  
Rhizophora Apiculata ◽  
Xylocarpus Granatum ◽  
Sonneratia Alba ◽  
Ceriops Decandra ◽  
The Village ◽  
Front Zone

ABSTRACTMangroves are one of the most important natural resources in coastal areas. Availability of various types of food that are on ecosystems is already making its presence as a local nursery, where searching for eating and also serve as a regional tourist ecosystem of mangrove. In use as Regional tourist mangrove need to attention the condition of the physical environment and the distribution pattern of zoning. Research is carried out in the month October to November 2019 in the village of Juanga Regency island of Morotai. Data zoning mangrove using the method of the combination is to combine the methods of plots to track transects, to determine the four stations of observation of each respective stations and each station is divided into three zones: zone front, zone of middle and zone back starting from the point of the outermost growth of types of mangrove constituent primary to the point of transition between sea and land. The research results of the study found 5 types of mangroves namely Rhizophora mucronata, Ceriops decandra, Rhizophora apiculata, Xylocarpus granatum and Sonneratia alba. The distribution of zoning patterns in the front zones of station I and the middle zone is dominated by Rhizophora mucronata and Rhizophora apiculata types, the rear zone is dominated by Ceriops decandra. Station II front zone is dominated by Sonneratia alba, middle zone (Rhizophora mucronata), rear zone (Ceriops decandra). At station III the front zone (Rhizophora apiculata), the middle zone and the rear zone (Ceriops decandra) while at station IV the front zone, the middle zone and the rear zone are dominated by the Ceriops decandra type.

scholarly journals Fauna asociada a la pesquería de Arca Zebra (Mollusca Bivalvia: Arcidae) en Venezuela

2018 ◽  
Vol 47 (1) ◽  
Author(s):  
Roberto Díaz-Fermín ◽  
Vanessa Acosta-Balbás
Keyword(s):  
Community Structure ◽  
New Record ◽  
Diversity Index ◽  
Economic Viability ◽  
Total Biomass ◽  
Total Abundance ◽  
Physical Damage ◽  
Negative Effect ◽  
Fishing Resources ◽  
Pinctada Imbricata

Arca zebra, constitutes one of the fishing resources with the greatest economic impact in northeastern Venezuela, since it forms banks of commercial importance. During a period of nine months (May 2010-August2011) the community structure of the organisms from the trawling fishery carried out by the fishermen of the area was identified, quantified and described. The biomass and abundance of the different groups were estimated to perform Abundance-Biomass Comparison Curves (ABC) with the objective of determining the degree of affectation by the trawling activity. A total of3 249 organisms belonging to 130 species were grouped in five Phyla: Mollusca, Annelida, Arthropoda, Echinodermata and Chordata. The Sanders' diversity index was 122.9 with mollusks (70.87) and polychaetes (29.91) as the most diverse taxa. Mollusks had the highest abundance followed by polychaetes, crustaceans, echinoderms and ascidians. Mollusks and echinoderms made the largest contribution to total biomass. The most frequent species were: Mithraculus forceps, Phallucia nigra, Echinometra lucunter, Eunice rubra and Pinctada imbricata. The microgastropods Triphora melanura is recognized as a new record for the area and the polychaete Oenone fulgida, for Venezuela. The ABC curve showed that total abundance of organisms was above total biomass, suggesting that the fishery of Arca zebra has a negative effect on most groups of organisms, mainly on echinoderms, since many of them suffer strong physical damage at the time of extraction, therefore, there is a need to modify the trawl nets, increasing the mesh opening, butwithout endangering the economic viability of the fishery.

scholarly journals Biomass and Carbon Stock Estimation of Udawattakele Forest Reserve in Kandy District of Sri Lanka

2019 ◽  
Vol 8 (2) ◽  
Author(s):  
A.M.S.K. Abeysekara ◽  
S.K. Yatigammana ◽  
K.T. Premakantha
Keyword(s):  
Carbon Dioxide ◽  
Sri Lanka ◽  
Carbon Stock ◽  
Anthropogenic Activities ◽  
Terrestrial Ecosystem ◽  
Total Carbon ◽  
Total Biomass ◽  
Moderate Amount ◽  
Forest Reserve ◽  
Rate Of Increase

Carbon dioxide has gained lot of attention in recent past as a greenhouse gas, and therefore it has a potential to affect the climate pattern of the world. Several anthropogenic activities are known to be responsible for the increased level of carbon in the atmosphere and disruption of the global carbon cycle. However, nature has its own mechanism of sequestering and storing the carbon in its “reservoirs”. Forest has the ability to sequester carbon in their biomass and reduce the rate of increase of atmospheric carbon dioxide. The carbon sequestered in the forest trees are mostly referred to as the biomass of a tree or a forest. It has been identified five carbon pools of the terrestrial ecosystem, involving biomass. The study was designed to estimate biomass stock and then the carbon stock of the Udawattakele Forest Reserve (7°17'58 "N, 80°38'20’’E) in Kandy, Sri Lanka. Allometric equations were used to calculate biomass of trees. The total biomass stock was estimated to be 9475.56 t ha-1 (Mega gram-Mg) and the total carbon stock was estimated to be 4,453.55 t ha-1 (Mg) in the Udawattakele Forest Reserve (UFR). This amount is equivalent to 16,344.52 Mg of carbon dioxide in the atmosphere. UFR holds a moderate amount of biomass/carbon stock and the total carbon density of natural forest and plantations was found to be 36.55 Mg ha-1 and 44.89 Mg ha-1 respectively.

scholarly journals Carbon storage along altitudes in agrisilviculture system- Case study of Devprayag Block, Tehri District, Uttarakhand, India

2020 ◽  
Vol 7 (9) ◽  
pp. 29-38
Author(s):  
K.K. Vikrant ◽  
D.S. Chauhan ◽  
R.H. Rizvi
Keyword(s):  
Climate Change ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Storage ◽  
Carbon Stock ◽  
Total Carbon ◽  
Total Biomass ◽  
Biomass Carbon ◽  
Total Carbon Stock ◽  
Crop Biomass

Climate change is one of the impending problems that have affected the productivity of agroecosystems which calls for urgent action. Carbon sequestration through agroforestry along altitude in mountainous regions is one of the options to contribute to global climate change mitigation. Three altitudes viz. lower (286-1200m), middle (1200-2000m), and upper (2000-2800m) have been selected in Tehri district. Ten Quadrates (10m × 10 m) were randomly selected from each altitude in agrisilviculture system. At every sampling point, one composite soil sample was taken at 30 cm soil depth for soil organic carbon analysis. For the purpose of woody biomass, Non destructive method and for crop biomass assessment destructive method was employed. Finally, aboveground biomass (AGB), belowground biomass carbon (BGB), Total tree Biomass (TTB), Crop biomass (CB), Total Biomass (TB), Total biomass carbon (TBC), soil organic carbon (SOC), and total carbon stock (TC) status were estimated and variables were compared using one-way analysis of variance (ANOVA).The result indicated that AGB, BGB, TTB, CB , TB, TBC, SOC, and TC varied significantly (p < 0.05) across the altitudes. Results showed that total carbon stock followed the order upper altitude ˃ middle altitudes ˃ lower altitude. The upper altitude (2000-2800 m) AGB, BGB,TTB, TBC,SOC, and TC stock was estimated as 2.11 Mg ha-1 , 0.52 Mg ha-1, 2.63 Mg ha-1, 2.633 Mg ha-1, 1.18 Mg ha-1 , 26.53 Mg ha-1, 38.48 Mg ha-1 respectively, and significantly higher than the other altitudes. It was concluded that agrisilviculture system hold a high potential for carbon storage at temperate zones. Quercus lucotrichophora, Grewia oppositifolia and Melia azadirach contributed maximum carbon storage which may greatly contribute to the climate resilient green economy strategy and their conservation should be promoted.

scholarly journals DESKRIPSI STRUKTUR LAHAN REHABILITASI MANGROVE DI KABUPATEN PROBOLINGGO PROPINSI JAWA TIMUR

2017 ◽  
Vol 12 (2) ◽  
Author(s):  
Ariesia Ayuning Gemaputri
Keyword(s):  
Rhizophora Mucronata ◽  
Bruguiera Gymnorrhiza ◽  
Rhizophora Stylosa ◽  
Rhizophora Apiculata ◽  
Ceriops Tagal ◽  
Ceriops Decandra

Kawasan hutan mangrove di Jawa Timur terdapat di sepanjang pantai utara mulai Kabupaten Tuban sampai dengan Kabupaten Situbondo seluas sekitar 19.916 hektar (Perum Perhutani, 1994). Keberadaan hutan mangrove tersebut kini semakin memprihatinkan, dimana penyusutan hutan mangrove di Kabupaten Probolinggo mencapai 580 hektar pada tahun 2001 (Kompas, 2001), dan 229,5 hektar di Kabupaten Situbondo (Pemerintah Kabupaten Situbondo, 2005). Dengan laju penurunan hutan mangrove yang demikian cepat, maka diperkirakan hutan mangrove akan lenyap pada tahun 2010 (Ramono, 2003). Kegiatan rehabilitasi hutan mangrove yang dilaksanakan sampai saat ini hanya terbatas pada penanaman pohon-pohon mangrove yang rusak karena penebangan, padahal keberhasilan upaya rehabilitasi juga sangat dipengaruhi oleh kondisi lahan, jenis mangrove, dan tata cara penanaman. Hasil penelitian yang dilakukan pada 3 (tiga) lokasi di pantai utara Jawa Timur bagian timur menunjukkan bahwa, tanah-tanah didominasi oleh fraksi pasir (13,80-94,92 %), pH asam (8,06-8,94), tingkat salinitas tinggi (0,2302-2,4843 %), kapasitas tukar kation rendah (7,8837-27,2901 me/100g), dan kandungan bahan organik rendah (0,1851-2,4675 %). Sehingga jenis mangrove yang dapat direkomendasikan untuk ditanam di Kabupaten Probolinggo pada zona paling dekat dengan darat (belakang) adalah Ceriops decandra, dan Ceriops tagal, pada zona tengah antara lain Bruguiera gymnorrhiza, dan Xylocarpus mollucensis, pada zona paling dekat dengan laut (depan) adalah Rhizophora apiculata, Rhizophora mucronata, dan Rhizophora stylosa.

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