IOP Conference Series: Earth and Environmental Science, 2021
The mangrove forest ecosystem plays an absorbent and carbon sink to reduce CO2 levels in the atmo... more The mangrove forest ecosystem plays an absorbent and carbon sink to reduce CO2 levels in the atmosphere, including in degraded mangrove areas. This research was conducted precisely on abandoned shrimp ponds in mangrove areas in the Mahakam Delta. Four different locations are locating on Sepatin ponds, ponds, ponds, and ponds Bayur headland. The purpose of this study was to estimate the above-ground carbon stock in abandoned shrimp ponds. Carbon stock measurement methods create a 125 m transect and quadrant divided into six plots at each location. These measurements were conducted on living vegetation and dead wood from felling vegetation. Measurement of above-ground biomass was done by measuring the tree diameter at breast height (1.3 m) on each tree diameter> 5 cm in radius quadrant plot 7 m. Vegetation has a diameter <5 cm categorized in seedling criteria and measured 30 cm from the ground within the quadrant plot radius of 2 m. The vegetation diversity experienced a success...
ABSTRACT In terms of sink activities in the Clean Development Mechanism (CDM) there is little inf... more ABSTRACT In terms of sink activities in the Clean Development Mechanism (CDM) there is little information about carbon accumulation. This paper deals with case studies in natural young secondary forests and man made forests in East Kalimantan, Indonesia. East Kalimantan has high possibility of CDM activity, because of degraded lands extend widely in 1998. The annual carbon accumulation of pioneer secondary forest in Bukit Soeharto Educational Forest (BSEF) ranged from 1.3 to 2.9 t C/ha/yr in 2000. However, the rate decreased in 2001 except for Macaranga gigantea dominated stands. These figures were higher than those of regenerated vegetation in degraded land with herbs, shrubs and Imperata cylindrica grassland. On the other hand, annual carbon accumulation of Acacia mangium, eucalyptus pelitta and Gmelia arborea were 5.9-9.9, 7.1-7.2, and 8.3-12.3 t C/ha/yr respectively. Highly degraded vegetations would be the target site for CDM projects. Naturally regenerated forests are not suitable for CDM project because of their high baseline.
This study aims first to determine the ground cover species that are potentially important for ag... more This study aims first to determine the ground cover species that are potentially important for agriculture in the peat swamp forest of Tengku Dacing Village, Second, knowing the benefits and potentials of the ground cover species that are potentially important for agriculture. Third, knowing the distribution of the ground cover species that are potentially important for agriculture in the peat swamp forest of Tengku Dacing Village.
Besarnya peran vegetasi sebagai penyerap dan penyimpan karbon sangatlah penting untuk mengurangi ... more Besarnya peran vegetasi sebagai penyerap dan penyimpan karbon sangatlah penting untuk mengurangi GRK di atmosfer. Penelitian ini dilaksanakan di hutan sekunder muda yang dido- minasi oleh jenis Macaranga Spp. di kawasan Taman Penghijauan Wanatirta untuk menduga cadangan karbon dan penyerapan oleh vegetasi.Metode penelitian menggunakan plot bertingkat pada plot 20 m x 50 m, yang terdiri dari plot 20 m x 50 m untuk mengukur pohon Ø ≥ 10 cm biomassa kayu mati dan pohon mati, plot 5 m x 5 m untuk mengukur pancang tinggi&gt;1,5 m berdiameter sampai dengan ≤ 10 cm, plot 2 m x 2 m untuk mengukur tumbuhan bawah dan serasah.Dari hasil pengumpulan data di lapangan pada tingkat pohon didapatkan 24 individu dengan 14 jenis terdiri dari 10 famili pepohonan, Dari vegetasi tingkat pohon dalam plot peneli- tian memiliki bermacam-macam ukuran diameter.Hasilanalisa data didapatkan total keseluruhan karbon tersimpan pada lokasi penelitian sebesar 123,49 Ton/Ha yang terdiri dari cadangan karbon tersimpan diatas permukaan sebesar 79,37 Ton/Ha, cadangan karbon tersimpan di bawah permukaan sebesar 27,79 Ton/Ha, cadangan karbon tersimpan pada Necromass sebe- sar 9,57 Ton/Ha, dan cadangan karbon tersimpan pada serasah sebesar 6,76 Ton/Ha.Dari data total keseluruhan cadangan karbon tersimpan pada plot penelitian maka didapatkan total kemampuan vegetasi menyerap di lokasi TPW sebesar 452,80 Ton/Ha Kata kunci: Sequestrasi karbon, Penyerapan CO2, Hutansekunder
The tiger shrimp culture in East Borneo is commonly performed using traditional pond system manag... more The tiger shrimp culture in East Borneo is commonly performed using traditional pond system management. In this work, the objective was to evaluate the application of Boesenbergia pandurata and Solanum ferox extract supplemented as feed additives considering shrimp growth, survival rate, and meat quality culture in a traditional pond. There were three dietary groups that were stocked with 300 shrimp in this study. The shrimp were maintained in a pond, separated with a 3 × 3 m2 net. The dietary treatment applied was divided into three types, namely P1, without the extracts; P2, 20 mL kg−1 dietary supplementation; and P3, 30 mL kg−1 dietary supplementation in the diet. The findings revealed that the herb extract influenced the growth rate, feed efficiency, survival rate, and meat quality of the shrimp, mainly the amino and fatty acid contents in the shrimp meat. The 30 mL kg−1 herb extract dose in group 3 showed a higher growth performance and survival rate. In group 3, 98% of the shr...
Mangrove forests serve as a buffer against sedimentation from the mainland into the sea, protect ... more Mangrove forests serve as a buffer against sedimentation from the mainland into the sea, protect the area from coastal erosion, and prevent seawater intrusion in some ecological types of coastal environments. Additionally, because soil and below-ground biomass retain a significant quantity of carbon, they are essential for carbon sequestration. The current study seeks to estimate the soil organic carbon stock of mangroves associated with natural regeneration, mangrove rehabilitation areas and abandoned shrimp ponds, in Mahakam Delta, East Kalimantan, Indonesia. A 125-meter-long transect line was used to collect data, with three sampling points representing the length of the transect line. Each soil sample was taken at three different depths: 0-50 cm, 50-100 cm, and 100-150 cm. After that, the samples were taken to the laboratory for carbon analysis. The mangrove rehabilitation area had the highest bulk density at 8.64 gr/cm3, followed by natural mangroves along the river border at 7...
Macaranga gigantea was one of the pioneer species who started the succession process after the fo... more Macaranga gigantea was one of the pioneer species who started the succession process after the forest fires and grew as dominant species. Therefore, the information on the spatial distribution pattern of M. gigantea is required as necessary data to determine the strategy for managing forest after forest fires. This study aimed to map out of distribution and identified the spatial distribution pattern of M. gigantea. Spatial analysis was to mapping out the location of M. gigantea distribution using remote sensing technology. Vegetation analysis was done by setting up a quadratic method in a square-shaped observation plot in 100 m track and then put into the location of the spread of M. gigantea by a purposive sampling method. The result showed that the spatial pattern of M. gigantea distribution tends to clump. The spatial pattern tends to clumped caused by thesimilarity of life needs between individuals, especially for light. Keywords: Pioneer species, spatial distribution pattern, ...
Global warming is a problem that must be addressed through various mitigation efforts. One of the... more Global warming is a problem that must be addressed through various mitigation efforts. One of the mitigation efforts is to increase the number of trees and plants that absorb carbon dioxide from the atmosphere. The purpose of this study is to inventory the types of trees in Mulawarman University's green open space environment on the Mount Kelua Campus in Samarinda, East Kalimantan. Data was collected by establishing plots in three green open space locations: next to Kurusetra, next to the guest house Unmul, and behind the workshop Fahutan Unmul. The study discovered the greatest number of tree individuals is Shorea leprosa Miq, with as many as 38 individuals in green open space near University of Mulawarman Guesthouse. In terms of biomass and carbon accumulation, the species of Hevea brasiliensis had the highest values, reaching 964 kg/species and 453.1 kg/species, respectively. Meanwhile, the potential for carbon dioxide absorption in Artocarpus odoratissimus Blanco is the high...
Tropical Small Island Agriculture Management, 2021
The avifauna of tropical peat swamp forests in East Kalimantan has not been well documented becau... more The avifauna of tropical peat swamp forests in East Kalimantan has not been well documented because of the smallest peat area compared to central Kalimantan. The surveys were conducted using various methods in the Muara Siran peat swamp forests and surrounding areas of Lake Siran (heath forest and riparian) in East Kalimantan, Indonesia. These findings were recorded on a list of 80 bird species as well as in numerous noteworthy records. Wetlands are an essential habitat for many threatened and near-threatened bird species. We also discovered Gallinula tenebrosa in Siran Lake, a species that has not been seen in over a century. However, it has a wide distribution globally, including in Australia and the United States. In the peat swamp forest, we recorded Cymbirrhinchus macrurus and Ichtyophaga humilis, rare and widely distributed. We also found Dicrurus hottentotus and Dicrurus remifer, some species of Ferruginous Babbler, Trichastoma bicolor, and the White-necked Babbler, Stachyr...
IOP Conference Series: Earth and Environmental Science, 2021
The mangrove forest ecosystem plays an absorbent and carbon sink to reduce CO2 levels in the atmo... more The mangrove forest ecosystem plays an absorbent and carbon sink to reduce CO2 levels in the atmosphere, including in degraded mangrove areas. This research was conducted precisely on abandoned shrimp ponds in mangrove areas in the Mahakam Delta. Four different locations are locating on Sepatin ponds, ponds, ponds, and ponds Bayur headland. The purpose of this study was to estimate the above-ground carbon stock in abandoned shrimp ponds. Carbon stock measurement methods create a 125 m transect and quadrant divided into six plots at each location. These measurements were conducted on living vegetation and dead wood from felling vegetation. Measurement of above-ground biomass was done by measuring the tree diameter at breast height (1.3 m) on each tree diameter> 5 cm in radius quadrant plot 7 m. Vegetation has a diameter <5 cm categorized in seedling criteria and measured 30 cm from the ground within the quadrant plot radius of 2 m. The vegetation diversity experienced a success...
ABSTRACT In terms of sink activities in the Clean Development Mechanism (CDM) there is little inf... more ABSTRACT In terms of sink activities in the Clean Development Mechanism (CDM) there is little information about carbon accumulation. This paper deals with case studies in natural young secondary forests and man made forests in East Kalimantan, Indonesia. East Kalimantan has high possibility of CDM activity, because of degraded lands extend widely in 1998. The annual carbon accumulation of pioneer secondary forest in Bukit Soeharto Educational Forest (BSEF) ranged from 1.3 to 2.9 t C/ha/yr in 2000. However, the rate decreased in 2001 except for Macaranga gigantea dominated stands. These figures were higher than those of regenerated vegetation in degraded land with herbs, shrubs and Imperata cylindrica grassland. On the other hand, annual carbon accumulation of Acacia mangium, eucalyptus pelitta and Gmelia arborea were 5.9-9.9, 7.1-7.2, and 8.3-12.3 t C/ha/yr respectively. Highly degraded vegetations would be the target site for CDM projects. Naturally regenerated forests are not suitable for CDM project because of their high baseline.
This study aims first to determine the ground cover species that are potentially important for ag... more This study aims first to determine the ground cover species that are potentially important for agriculture in the peat swamp forest of Tengku Dacing Village, Second, knowing the benefits and potentials of the ground cover species that are potentially important for agriculture. Third, knowing the distribution of the ground cover species that are potentially important for agriculture in the peat swamp forest of Tengku Dacing Village.
Besarnya peran vegetasi sebagai penyerap dan penyimpan karbon sangatlah penting untuk mengurangi ... more Besarnya peran vegetasi sebagai penyerap dan penyimpan karbon sangatlah penting untuk mengurangi GRK di atmosfer. Penelitian ini dilaksanakan di hutan sekunder muda yang dido- minasi oleh jenis Macaranga Spp. di kawasan Taman Penghijauan Wanatirta untuk menduga cadangan karbon dan penyerapan oleh vegetasi.Metode penelitian menggunakan plot bertingkat pada plot 20 m x 50 m, yang terdiri dari plot 20 m x 50 m untuk mengukur pohon Ø ≥ 10 cm biomassa kayu mati dan pohon mati, plot 5 m x 5 m untuk mengukur pancang tinggi&gt;1,5 m berdiameter sampai dengan ≤ 10 cm, plot 2 m x 2 m untuk mengukur tumbuhan bawah dan serasah.Dari hasil pengumpulan data di lapangan pada tingkat pohon didapatkan 24 individu dengan 14 jenis terdiri dari 10 famili pepohonan, Dari vegetasi tingkat pohon dalam plot peneli- tian memiliki bermacam-macam ukuran diameter.Hasilanalisa data didapatkan total keseluruhan karbon tersimpan pada lokasi penelitian sebesar 123,49 Ton/Ha yang terdiri dari cadangan karbon tersimpan diatas permukaan sebesar 79,37 Ton/Ha, cadangan karbon tersimpan di bawah permukaan sebesar 27,79 Ton/Ha, cadangan karbon tersimpan pada Necromass sebe- sar 9,57 Ton/Ha, dan cadangan karbon tersimpan pada serasah sebesar 6,76 Ton/Ha.Dari data total keseluruhan cadangan karbon tersimpan pada plot penelitian maka didapatkan total kemampuan vegetasi menyerap di lokasi TPW sebesar 452,80 Ton/Ha Kata kunci: Sequestrasi karbon, Penyerapan CO2, Hutansekunder
The tiger shrimp culture in East Borneo is commonly performed using traditional pond system manag... more The tiger shrimp culture in East Borneo is commonly performed using traditional pond system management. In this work, the objective was to evaluate the application of Boesenbergia pandurata and Solanum ferox extract supplemented as feed additives considering shrimp growth, survival rate, and meat quality culture in a traditional pond. There were three dietary groups that were stocked with 300 shrimp in this study. The shrimp were maintained in a pond, separated with a 3 × 3 m2 net. The dietary treatment applied was divided into three types, namely P1, without the extracts; P2, 20 mL kg−1 dietary supplementation; and P3, 30 mL kg−1 dietary supplementation in the diet. The findings revealed that the herb extract influenced the growth rate, feed efficiency, survival rate, and meat quality of the shrimp, mainly the amino and fatty acid contents in the shrimp meat. The 30 mL kg−1 herb extract dose in group 3 showed a higher growth performance and survival rate. In group 3, 98% of the shr...
Mangrove forests serve as a buffer against sedimentation from the mainland into the sea, protect ... more Mangrove forests serve as a buffer against sedimentation from the mainland into the sea, protect the area from coastal erosion, and prevent seawater intrusion in some ecological types of coastal environments. Additionally, because soil and below-ground biomass retain a significant quantity of carbon, they are essential for carbon sequestration. The current study seeks to estimate the soil organic carbon stock of mangroves associated with natural regeneration, mangrove rehabilitation areas and abandoned shrimp ponds, in Mahakam Delta, East Kalimantan, Indonesia. A 125-meter-long transect line was used to collect data, with three sampling points representing the length of the transect line. Each soil sample was taken at three different depths: 0-50 cm, 50-100 cm, and 100-150 cm. After that, the samples were taken to the laboratory for carbon analysis. The mangrove rehabilitation area had the highest bulk density at 8.64 gr/cm3, followed by natural mangroves along the river border at 7...
Macaranga gigantea was one of the pioneer species who started the succession process after the fo... more Macaranga gigantea was one of the pioneer species who started the succession process after the forest fires and grew as dominant species. Therefore, the information on the spatial distribution pattern of M. gigantea is required as necessary data to determine the strategy for managing forest after forest fires. This study aimed to map out of distribution and identified the spatial distribution pattern of M. gigantea. Spatial analysis was to mapping out the location of M. gigantea distribution using remote sensing technology. Vegetation analysis was done by setting up a quadratic method in a square-shaped observation plot in 100 m track and then put into the location of the spread of M. gigantea by a purposive sampling method. The result showed that the spatial pattern of M. gigantea distribution tends to clump. The spatial pattern tends to clumped caused by thesimilarity of life needs between individuals, especially for light. Keywords: Pioneer species, spatial distribution pattern, ...
Global warming is a problem that must be addressed through various mitigation efforts. One of the... more Global warming is a problem that must be addressed through various mitigation efforts. One of the mitigation efforts is to increase the number of trees and plants that absorb carbon dioxide from the atmosphere. The purpose of this study is to inventory the types of trees in Mulawarman University's green open space environment on the Mount Kelua Campus in Samarinda, East Kalimantan. Data was collected by establishing plots in three green open space locations: next to Kurusetra, next to the guest house Unmul, and behind the workshop Fahutan Unmul. The study discovered the greatest number of tree individuals is Shorea leprosa Miq, with as many as 38 individuals in green open space near University of Mulawarman Guesthouse. In terms of biomass and carbon accumulation, the species of Hevea brasiliensis had the highest values, reaching 964 kg/species and 453.1 kg/species, respectively. Meanwhile, the potential for carbon dioxide absorption in Artocarpus odoratissimus Blanco is the high...
Tropical Small Island Agriculture Management, 2021
The avifauna of tropical peat swamp forests in East Kalimantan has not been well documented becau... more The avifauna of tropical peat swamp forests in East Kalimantan has not been well documented because of the smallest peat area compared to central Kalimantan. The surveys were conducted using various methods in the Muara Siran peat swamp forests and surrounding areas of Lake Siran (heath forest and riparian) in East Kalimantan, Indonesia. These findings were recorded on a list of 80 bird species as well as in numerous noteworthy records. Wetlands are an essential habitat for many threatened and near-threatened bird species. We also discovered Gallinula tenebrosa in Siran Lake, a species that has not been seen in over a century. However, it has a wide distribution globally, including in Australia and the United States. In the peat swamp forest, we recorded Cymbirrhinchus macrurus and Ichtyophaga humilis, rare and widely distributed. We also found Dicrurus hottentotus and Dicrurus remifer, some species of Ferruginous Babbler, Trichastoma bicolor, and the White-necked Babbler, Stachyr...
This study aims first to determine the ground cover species that are potentially important for ag... more This study aims first to determine the ground cover species that are potentially important for agriculture in the peat swamp forest of Tengku Dacing Village, Second, knowing the benefits and potentials of the ground cover species that are potentially important for agriculture. Third, knowing the distribution of the ground cover species that are potentially important for agriculture in the peat swamp forest of Tengku Dacing Village.
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