ESTIMASI KANDUNGAN KARBON (C) PADA SERASAH DAUN MANGROVE DI DESA LANSA, KECAMATAN WORI, KABUPATEN MINAHASA UTARA

Global warming is one of the environmental issues related to climate change. Coastal blue carbon ecosystems such as mangrove and seagrass have ability to combat global warming. Mangrove ecosystem has an important ecological function in efforts to mitigate global warming, by carbon storage. This study was done in Lansa Village mangrove forest and focused on mangrove leaf litter. The purpose of this study was to estimate carbon content in mangrove leaf litter. Leaf litter samples were collected by using a 1x1 m2 litter trap, which was made of black nylon with a mesh size of about 0.2 cm, 8 traps were put under mangrove trees canopy, with a height of 1.5 m above sea level or at the highest tide. The samples were taken and observed every 7 days. The samples were analyzed by using Dry-Ash Method. The results showed that the average litter production of gram wet weight (Gbb) and gram dry weight obtained during the study were 122.97 gbb m2/28 days, 4.39 gbb m2/28 days, 47.69 gbk m2/28 days, 1.83 gb m2/day. The average of mangrove leaf litter biomass is 30.12 g m2. The highest amount of carbon storage in mangrove litter was 19.30 gram C. The average value of the percentage of carbon content of all plots was 31.38% per day. Based on these results the estimated amount of carbon removal in mangrove leaves was 2.16 t C ha-1 y-1 or 337.18 t C y-1.and 1,237.45 t CO2 y-1.Ekosistem mangrove memiliki fungsi ekologis yang sangat penting dalam upaya mitigasi pemanasan global, yakni sebagai penyerap dan penyimpan karbon Hutan mangrove juga memiliki peran sebagai penyerap karbon dioksida (CO2) dari udara sehingga sangat berguna untuk mitigasi perubahan iklim. Tujuan dari penelitian ini adalah untung mengestimasi kandungan karbon pada serasah daun mangrove di hutan mangrove Desa Lansa, Kecamatan Wori, Kabupaten Minahasa Utara. penelitian ini dilakukan menggunakan metode litter trap yang berukuran 1x1 m2, yang terbuat dari nylon berwarna hitam dengan ukuran mata jaring (mesh size) sekitar 0,2 cm, sebanyak 8 buah dipasang di bawah kanopi pohon mangrove, dengan ketinggian 1,5 m di atas permukaan air laut atau pada pasang tertinggi untuk menampung jatuhnya serasah dan diamati setiap 7 hari. Hasil penelitian diperoleh rata-rata produksi serasah gram berat basah (Gbb) dan gram berat kering yang didapat selama penelitian, sebesar 122,97 gbb/m2/28hr, 4,39 gbb/m2/hr, 47,69 gbk/m2/28hr, 1,83 gbk/m2/hr. rata-rata biomassa serasah daun mangrove sebesar 41,07. Jumlah simpanan karbon tertinggi pada serasah mangrove sebesar 19,30 gram C. Nilai rata-rata persentase kandungan karbon dari semua plot adalah sebesar 31,38% per hari, berdasarkan hasil penelitian jumlah estimasi kandungan karbon yang tersimpan pada serasah daun mangrove 2,16 ton/ha/tahun.

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Produksi Serasah Musiman pada Berbagai Spesies Mangrove di Pesisir Kabupaten Muna Barat, Sulawesi Tenggara

Jurnal Ilmu Pertanian Indonesia ◽

10.18343/jipi.25.3.323 ◽

2020 ◽

Vol 25 (3) ◽

pp. 323-333

Author(s):

Rahman Rahman ◽

Yusli Wardiatno ◽

Fredinan Yulianda ◽

Iman Rusmana

Keyword(s):

Leaf Litter ◽

Mangrove Ecosystem ◽

Litter Production ◽

Bruguiera Gymnorrhiza ◽

Rhizophora Stylosa ◽

Rhizophora Apiculata ◽

Sonneratia Alba ◽

Wet Weight ◽

Bruguiera Cylindrica ◽

Leaf Litter Production

Mangrove litter production is important in the displacement of organic matter from mangrove vegetation to water such as in the coast of West Muna Regency. However, one factor influencing it is the frequency of rainfall. This research, therefore, aims to determine the influence of the frequency of rainfall in mangrove ecosystem by obtaining data through the fractional wet weight. The results showed that the biomass fraction with the largest amount were Rhizophora mucronata, Rhizophora apiculata, and Sonneratia alba with of 31.59; 31.07; and 30.96%, respectively, while the lowest was Rhizophora stylosa, Bruguiera cylindrica, and Bruguiera gymnorrhiza with of 30.07; 30.10; and 31.95%, respectively. The species with the largest leaf litter production was Bruguiera cylindrica, with of 1.72 g.m-2.day-1 which occurred in April and the lowest was Rhizophora apiculata, 0.24 g.m-2.day-1 in August. The species with the largest leaf litter production was Bruguiera cylindrica, 1.96 g.m-2.day-1 which occurred in May and the lowest was Sonneratia alba, 0.29 g.m-2.day-1 in August. In addition, the species with the largest fruit litter production was Rhizophora apiculata, 1.76 g.m-2.day-1 in April and the lowest was Sonneratia alba, 0.32 g.m-2.day-1 in September. The total litter production was 18,75 g.m-2.day-1 consisted of 6,69 g.m2.day-1 leaf litter, 6,54 g.m-2.day-1 branch litter, and 5,52 g.m-2.day-1 fruit litter. The higher the frequency of the rain, the greater the litter production. Keywords: biomass fraction, seasonal litter production, West Muna Regency

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ESTIMASI CADANGAN KARBON PADA LAMUN DI PESISIR TIMUR KABUPATEN BINTAN

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.29244/jitkt.v10i3.21397 ◽

2018 ◽

Vol 10 (3) ◽

pp. 639-650

Author(s):

. Khairunnisa ◽

Isdradjad Setyobudiandi ◽

Mennofatria Boer

Keyword(s):

Global Warming ◽

Carbon Content ◽

Carbon Stock ◽

East Coast ◽

Dry Weight ◽

Blue Carbon ◽

Coastal Vegetation ◽

Seagrass Ecosystem ◽

Below Ground ◽

Standard Value

ABSTRAKSalah satu upaya untuk mengurangi emisi gas karbon pemicu pemanasan global adalah dengan memanfaatkan vegetasi pesisir seperti lamun yang dikenal dengan istilah blue carbon. Penelitian ini bertujuan untuk mengetahui stok karbon pada padang lamun di Pesisir Timur Kabupaten Bintan, Kepulauan Riau sebagai upaya dalam mengurangi pemanasan global. Penelitian dilakukan di Berakit, Malang Rapat, dan Teluk Bakau mulai Januari – Juli 2017. Parameter yang diukur dalam penelitian ini adalah biomassa, kandungan karbon, dan stok karbon pada lamun. Analisis biomassa diukur dari berat kering lamun per satuan luas yang dibagi atas bagian atas dan bawah substrat, kandungan karbon diukur dengan metode Walkley and Black, stok karbon diukur dengan memperhatikan kandungan karbon dan biomassa lamun. Hasil penelitian menunjukkan ekosistem lamun di pesisir timur Kabupaten Bintan ditumbuhi oleh C. rotundata, C. serrulata, E. acoroides, H. uninervis, H. pinifolia, H. ovalis, T. hemprichii, T. ciliatum dan S. isoetifolium dengan kondisi yang relatif baik. Persentase biomassa dan karbon yang berada di bawah substrat lebih besar dibanding biomassa yang berada di atas substrat, sehingga ketika bagian pelepah dan daun lamun lepas baik karena tindakan manusia ataupun alam lamun masih tetap mampu menyimpan karbon. Padang lamun di pesisir sebelah timur Kabupaten Bintan memiliki potensi dalam menyerap dan menyimpan karbon yakni sebesar 2431.33 ton C dengan E. acoroides sebagai spesies yang mampu menghasilkan biomassa terbesar dan kandungan karbon tertinggi, meski jumlah tersebut tidak dapat dijadikan acuan apakah lamun memiliki potensi yang tinggi ataupun tidak karena hingga saat ini belum ada nilai standardnya. ABSTRACTOne of the solutions to reduce carbon gas emissions that triggered global warming is to utilize coastal vegetation such as seagrass that known as blue carbon. This research was aimed to determine stock carbon on seagrass in the east coast of Bintan Regency, Kepulauan Riau Province as an effort to reduce global warming. The research was conducted in Berakit, Malang Rapat, and Teluk Bakau from January to July 2017. The parameters measured in this research were biomass, carbon content, and carbon stock on seagrass. The anylisis of the biomass was obtained from the dry weight per unit area, the carbon content was obtained by Walkley and black method, the carbon stock was obtained by the measurement of the biomass and carbon content. Based on the observation, seagrass ecosystem in east coast of Bintan was palnted by C. rotundata, C. serrulata, E. acoroides, H. uninervis, H. pinifolia, H. ovalis, T. hemprichii, T. ciliatum, dan S. isoetifolium. The below ground biomass and carbon percentation were higher that the aboveground parts so when the leaves are released either because of human or natural actions, seagrass is still able to store carbon. Seagrass beds on the east coast of Bintan Regency have the potential to absorb and store carbon which is equal to 2431.33 tons C as E. acoroides being the species which capable of producing the highest biomass and highest carbon content, although this number cannot be used as a reference whether seagrass has high potential or no because until now there has been no standard value.

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Studi Pemberian Pupuk Majemuk Dan Campuran Tanah Gambut dengan Tanah Mineral Terhadap Pertumbuhan Anakan Durian (Durio Murr)

Daun Jurnal Ilmiah Pertanian dan Kehutanan ◽

10.33084/daun.v6i1.923 ◽

2019 ◽

Vol 6 (1) ◽

pp. 77-89

Author(s):

Yos Andy Tangkasiang

Keyword(s):

Peat Soil ◽

Mineral Soil ◽

Dry Weight ◽

Leaf Number ◽

Average Value ◽

Compound Fertilizer ◽

Test Parameters ◽

Two Factors ◽

Wet Weight ◽

Height Increase

Study of Effect of compound fertilizer and mixture of peat soil with mineral soil on growth of Durian (Durio Murr) tillers. The aim is to determine the levels of compound fertilizer and the comparison of mineral soil mixtures that have the best influence on the growth of Durian tillers. Time used for three months. Complete Random Design with two factors. The first factor is compound fertilizer (P) composition of N, P and K content 16: 16: 16. The levels tested are four, namely 0 gram (p0), 1 gram (p1), 2 gram (p2) and 3 gram (p3) per poly bag. The second factor is the mixture of peat soil with mineral soil (T) with 4 comparisons: without mineral soil + 100% peat (t0), 5% mineral soil + 95% peat soil (t1), 10% mineral soil + 90% peat soil (t2 ), 15% mineral soil + 85% peat soil (t3). The results of the experiments that have been conducted can be concluded: The effect of interaction between mineral soil and compound fertilizer only occurs on increasing diameter and root wet weight. The parameters of leaf number, height increase, shoot wet weight and root dry weight, interactions were not significantly different. Interactively, the best effect is given by t2p1 = 23.33 mm on increasing diameter. The root wet weight is given by t2p1 = 7.5 grams. Independently mineral soil 5-10% of the polybag provides the best average value of growth against the test parameters. Compound fertilizer provides the best average value at the level of 1-2 grams of compound fertilizer / polybag.

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Potentials of mangrove ecosystem as storage of carbon for global warming mitigation

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d211141 ◽

2020 ◽

Vol 21 (11) ◽

Author(s):

Adilah Dinilhuda ◽

Aji Ali Akbar ◽

Jumiati ◽

Henny Herawaty

Keyword(s):

Global Warming ◽

Carbon Storage ◽

Ghg Emissions ◽

Environmental Parameters ◽

Mangrove Ecosystem ◽

Total Carbon ◽

Total Density ◽

Co2 Absorption ◽

Vegetation Density ◽

Carbon Dioxide Absorption

Abstract. Dinilhuda A, Akbar AA, Jumiati, Herawati H. 2020. Potential of mangrove ecosystem as carbon storage for global warming mitigation. Biodiversitas 21: 5353-5362. The mangrove ecosystem in Karimunting Bay of West Kalimantan, Indonesia is one of the conservation areas with an area of 138.2 ha. Vegetation making up of that mangrove ecosystem is dominated by Avicennia marina. The existence of mangroves has a role in carbon storage. The ability to store carbon in mangrove forest ecosystems is four times greater than in other tropical forests around the world. Mangrove stems have the greatest ability in storing carbon by up to 55.52%. The research objective was to analyze the potential for carbon storage in the fringe mangrove ecosystem which was dominated by A. marina. This research method is based on a survey of vegetation density in the field. The survey was carried out in Karimunting Bay in three parts of the bay, north, central, and south. Each part of the bay consists of two locations, namely at the front of the breakwater towards the sea and behind the breakwater towards the land. Each location consisted of a plot of 10 x 10 with five replications. The vegetation parameters measured are the types of growth forms, the mangrove ecosystem species, and the diameter and height of the trees, as well as environmental parameters (pH, temperature, and salinity). Destructive method was used on A. marina stems for estimating analysis of mangrove carbon storage in the laboratory. A. marina stem samples were used to test the carbon content with LOI (Lost on Ignition) analysis. Analysis of changes in mangrove area is based on the 2009 and 2019 landscape images. The results show that the mangrove ecosystem of Karimunting Bay has a total density of 177,480 individuals/ha. The amount of carbon storage reached 99,231 mg/ha in 2019 and predictions of total carbon storage over the last 10 years are as much as 13,717,951 tons. Deposits of carbon in fringe mangrove illustrate the carbon dioxide absorption potential of 36,390,608 tons of CO2. The amount of CO2 absorption in fringe mangrove ecosystem type plays a role in reducing greenhouse gas (GHG) emissions with a conditional target according to the Nationally Determined Contribution (NDC) in 2030 of 834 million tons of CO2 to prevent temperature increases.

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CARBON STORAGE OF MANGROVE ECOSYSTEM IN NORTH SULAWESI AND ITS IMPLICATIONS TO CLIMATE CHANGE MITIGATION ACTION

Jurnal Kelautan Nasional ◽

10.15578/jkn.v14i2.7711 ◽

2019 ◽

Vol 14 (2) ◽

Cited By ~ 1

Author(s):

Terry Louise Kepel

Keyword(s):

Climate Change ◽

Carbon Storage ◽

Climate Change Mitigation ◽

Action Plan ◽

Mangrove Ecosystem ◽

Coastal Forests ◽

Average Value ◽

North Sulawesi ◽

Mangrove Ecosystems ◽

Change Mitigation

North Sulawesi is one of the provinces that implements national / regional action plan (RAN / RAD) policies as part of a national effort to climate change mitigation. One of the land-based mitigation activities in North Sulawesi is to measure and monitore biomass and carbon stocks in forests including coastal forests where the measurement area is still limited. In 2013-2015, Blue Carbon Research Group conducted research in four locations in North Sulawesi, which aims to analyze the ecological conditions and the ability of coastal ecosystems, especially mangrove in sequestering carbon. Study sites situated in Ratatotok - Southeast Minahasa Regency, Kema - North Minahasa Regency, Lembeh Island – Bitung City and Sangihe Island – Sangihe Regency. A total of 17 species identified where B. gymnorrhiza, R. mucronata and S. alba found in all locations. Species diversity ranges from low to moderate, where species distribution is uneven. Carbon storage capacity is equal to 343.85 Mg C ha-1 in Ratatotok, 254,35 Mg C ha-1 in Lembeh, 387,95 Mg C ha-1 in Kema and 594,83 Mg C ha-1 in Sangihe. More than 59% of carbon storage are in the sediment. The average value of carbon storage in the four research sites is 456,86 Mg C ha-1 or 5,70 Tg C after converted to a total area of mangrove ecosystems in North Sulawesi. The value is equal to absorption of atmospheric CO2 by 20.70 Tg CO2e. Potential emission due to changes in mangrove conversion reach 0.42 Tg CO2e. Efforts to increase the contribution of reducing North Sulawesi emissions can be achieved by implementing emission reduction interventions through the rehabilitation and conservation of mangrove ecosystems.

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Production of Rhizophora Mangrove Leaf Litter in The Sungai Bersejarah Mangrove Ecosystem, Siak Regency

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/934/1/012073 ◽

2021 ◽

Vol 934 (1) ◽

pp. 012073

Author(s):

E Efriyeldi ◽

B Amin ◽

T Hersa

Keyword(s):

Leaf Litter ◽

Sampling Site ◽

Environmental Parameters ◽

Mangrove Ecosystem ◽

Line Transect ◽

Litter Production ◽

Vegetation Density ◽

Fisheries Resources ◽

Significant Difference ◽

Mangrove Vegetation

Abstract The mangrove ecosystem is one of the coastal ecosystems that has important ecological roles and functions in supporting marine and fishery resources. Marine and fisheries resources are largely determined by the contribution of mangrove litter. The aims of this study was to determine the production of Rhizophora mangrove leaf litter in Sungai Bersejarah mangrove ecosystem, and to determine the value of environmental parameters related to litter. The research was conducted in January until March 2021 in Sungai Bersejarah mangrove area Kayu Ara Permai, Siak Regency. Line transect plot were used to calculate the density of Rhizophora. Rhizophora litter production was measured using the trap net method placed at three sampling site. Three litter trap nets measuring 1 m x 1 m are placed at each station. Rhizophora tree density ranges from 316 - 444 ind./ha. The production of Rhizophora mangrove leaf litter in Sungai Bersejarah mangrove ecosystem was 0.82 – 1.39 g/m2/day (3.00 – 5.09 ton/ha/year), average was 4.11 ton/ha/year. Analysis of variance test showed that there was a significant difference in Rhizophora leaf litter production between sampling points with different Rhizophora tree densities (p<0.05). Mangrove vegetation density has a moderate relationship (r=0.43) to the production of Rhizophora mangrove leaf litter. Environmental parameters indicate that the condition of the Sungai Bersejarah mangrove ecosystem is still good and can support the life of mangrove vegetation.

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Produksi Dan Laju Dekomposisi Serasah Mangrove (Rhizophora Sp.) Di Desa Durian Dan Desa Batu Menyan Kecamatan Padang Cermin Kabupaten Pesawaran

Jurnal Sylva Lestari ◽

10.23960/jsl139-20 ◽

2015 ◽

Vol 3 (1) ◽

pp. 9 ◽

Cited By ~ 1

Author(s):

Feri Andrianto ◽

Afif Bintoro ◽

Slamet Budi Yuwono

Keyword(s):

Leaf Litter ◽

Organic Substance ◽

Decomposition Rate ◽

Dry Weight ◽

Mangrove Ecosystem ◽

Nursery Ground ◽

Spawning Ground ◽

Leaf Production ◽

The Difference ◽

Substrate Characteristic

ABSTRACT Mangrove litter leaf represent the organic substance supplier towards fertility of mangrove ecosystem, that able to support the mortal life within. The area of forest of mangrove represent the nursery ground, feeding ground, and area of spawning ground for various fish type, prawn and other biota sea and also as producer of amount of detritus for plankton as main foods source of the sea. The objectives of this research were to know production and decomposition rate of mangrove litter leaf in the mangrove ecosystem of Durian Village and Batu Menyan Village, Padang Cermin subdistrict, Pesawaran regency. Data was analysed by calculating the dry weight mean of litter leaf production and to counting decomposition rate was using the exponential rank function or from absolute decomposition percentage of litter leaf per day. This research was conducted in two place (station) based on the difference of substrate characteristic. The research conducted from October to December 2013. The productivity of mangrove’s litter leaf in both places is 0,56 g/m2/day, where the leaf organ gave the higgest contribution, (66%), stick and branch (14%), flower and fruit (20%). Decomposition rate of mangrove litter leaf showed that at the second station ( 0,20 g / hr) was faster than the first station ( 0,19 g / hr). Keywords : Decomposition rate, litter leaf litter leaf, mangrove, production

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Pengaruh Media Tanam dan Intensitas Naungan Terhadap Pertumbuhan Bibit Api-Api (Avicennia alba)

Journal of Tropical Silviculture ◽

10.29244/j-siltrop.12.2.43-50 ◽

2021 ◽

Vol 12 (2) ◽

pp. 43-50

Author(s):

Cecep Kusmana ◽

Fadlilatul Hasanah

Keyword(s):

Dry Weight ◽

Mangrove Ecosystem ◽

Mangrove Forests ◽

Treatment Combination ◽

Mangrove Species ◽

Randomized Design ◽

Wet Weight ◽

Number Of Leaves ◽

Avicennia Alba ◽

Total Dry Weight

Mangrove forests are ecosystems located in tidal areas in coastal areas, beaches, and small islands. The area of mangrove forests is decreasing due to the conversion of mangrove forests into fishponds, plantations, and timber exploitation. Mangrove ecosystem rehabilitation activities need to be carried out through planting. Avicennia alba is a pioneer mangrove species that grows in mangrove swamp habitats on sheltered coastal locations, as well as in the saltier parts of the coastline. The objectives of this research is to analyze the effect of planting media and shade intensity on the seedling growth of Avicennia alba. The study used a two-factor experimental design in a complete randomized design. The first factor is planting media and the second one in shade intensity. The results showed that the shading intensity most influenced the growth of Avicennia alba seedlings. The variables affected include height, diameter, number of leaves, total wet weight, and total dry weight. The treatment combination that gave the best results was A2N0, that means the planting medium in the form of a mixture of mud, sand and compost and without shade (0% shade). Keywords: Avicennia alba, growth, photosynthesis, planting media, shade intensity

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Production and decomposition of mangrove litter in Jang River Estuary, Bukit Bestari District, Tanjungpinang City

Samakia : Jurnal Ilmu Perikanan ◽

10.35316/jsapi.v11i1.631 ◽

2020 ◽

Vol 11 (1) ◽

pp. 34-43

Author(s):

Gusti Randa ◽

Febrianti Lestari ◽

Dedy Kurniawan

Keyword(s):

Decomposition Rate ◽

Sampling Method ◽

River Estuary ◽

Mesh Size ◽

Dry Weight ◽

Litter Production ◽

Moderate Density ◽

Mangrove Area ◽

Mangrove Trees

The purpose of this study was to analyze the level of mangrove density, the level of production and decomposition of mangrove litter in Jang River Estuary, Bukit Bestari District, Tanjungpinang City. Determination of the research location using purposive sampling method based on development activities around the Muara Jang River mangrove area, including the area of community settlement development (station 1), landfill area for the construction of shop houses and housing (station 2) and the area without development activities (station 3). To measure the density of mangroves using a plot of 10 x 10 m2 with 3 plots, to measure the production of mangrove litter using litter and to measure the decomposition of mangroves using litter with a 0.5 cm mesh size placed under mangrove trees that are still affected by tides. The results showed the level of mangrove density at station 1 was 1033 ± 51 trees/ha with good criteria and moderate density, station 2 was 933 ± 115 trees/ha with rare damage and density criteria, and station 3 was 1367 ± 208 trees/ha with good criteria and moderate density. The level of mangrove litter production at Station 1 is 5.14 grams dry weight / m2, Station 2 is 2.80 grams dry weight / m2, and Station 3 is 6.67 grams dry weight / m2. The mangrove decomposition rate at station 1 was 63.33%, station 2 was 62.05% and station 3 was 67.73%.

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