scholarly journals ANALISIS POTENSI SIMPANAN KARBON AGROFORESTRI PERKEBUNAN KOPI ROBUSTA (COFFEA CANEPHORA) DI PEGUNUNGAN ARGOPURO, KABUPATEN BONDOWOSO

Author(s):  
Elida Novita ◽  
Miftahul Nur Huda ◽  
Hendra Andiananta Pradana

Coffee plantation areas have the potential to absorb carbon dioxide in the atmosphere to reduce the greenhouse gas (GHG) emissions. Especially if coffee plantations are developed with forest plants in agroforestry area within  forest management patterns. On the other hand, some coffee agroforestry now, are planted with horticultural crops that can reduce carbon sequestration ability to reduce climate change impact. The objectives of the study are to identify the parameters of the abiotic environment and the potential for carbon storage in robusta coffee agroforestry at Argopuro mountains, Bondowoso Regency. Through the calculation of plant biomass and carbon stock, it is potential to approach the amount of carbon uptake in plants to reduce carbon emissions in the atmosphere. Coffee plantation is one area that can increase carbon sequestration in the atmosphere. The results showed that microclimate parameters at robusta coffeeagroforestry at Argopuro mountains in Bondowoso regency i.e. temperature, air humidity, light intensity has average values of 29.2 oC; 54%; and 2166 lux respectively, then an average of soil pH is 6.00. There were some commonly plants founds in robusta coffee plantation i.e mango trees, avocado trees, dadap trees, pine trees, and more banana plants. Total biomass estimation in robusta coffee plantation area is 144,834 tonnes/ha. The identification of carbon stock show that the robusta coffee agroforestry area with ??2000 m2 can contribute to reduce atmospheric carbon emissions by 72.417 tonnes/ha in Argopuro mountains, Maesan District, Bondowoso Regency. Keywords: Argopuro Mountains; Bondowoso; Carbon stock; Coffee agroforestry; Climate Change.

2018 ◽  
Vol 41 (4) ◽  
pp. 397-402
Author(s):  
Tanuja Gahlot ◽  
◽  
Prachi Joshi ◽  
Y.S. Rawat ◽  
◽  
...  

The ability of forests in atmospheric carbon sequestration is increasingly gaining attention. Present study deals with the estimation of biomass and carbon stock of the teak plantation in the terai central forest division in Kumaun, Uttarakhand State of India. Very few scientific studies were done regarding the teak plantation and the estimation of its biomass in Kumaun. Therefore this study was carried out in this region to assess the role played by teak plantation in climate change. The information regarding the changes in pattern of carbon storage is vital and important because it can be used by government and policymakers to predict the deposit pattern for changing climate. Three sites i.e., Kamola block (Site I), Kamola beat (Site II) and East Gadappu beat (Site III) were selected for the study. Large scale variations in biomass and carbon stock were noted among all three sites. Site III (East Gadappu) showed the maximum biomass and carbon stock (297.03 tha-1 and 143.18 tha-1) followed by site I (Kamola block) (241.9 tha -1and 117.27 t ha-1) and site II ( Kamola beat ) (175.76 t ha-1and 85.79 t ha-1). Although stand density and total basal area of the forest showed almost similar value on all three sites, still the differences in biomass and carbon stock at all sites indicated the positive contribution of biodiversity as shown in the results and negative implications of human disturbance to the forest.


Land ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1240
Author(s):  
Ming-Yun Chu ◽  
Wan-Yu Liu

As compared with conventional approaches for reducing carbon emissions, the strategies of reducing emissions from deforestations and forest degradation (REDD) can greatly reduce costs. Hence, the United Nations Framework Convention on Climate Change regards the REDD strategies as a crucial approach to mitigate climate change. To respond to climate change, Taiwan passed the Greenhouse Gas Reduction and Management Act to control the emissions of greenhouse gases. In 2021, the Taiwan government has announced that it will achieve the carbon neutrality target by 2050. Accordingly, starting with focusing on the carbon sink, the REDD strategies have been considered a recognized and feasible strategy in Taiwan. This study analyzed the net present value and carbon storage for various land-use types to estimate the carbon stock and opportunity cost of land-use changes. When the change of agricultural land to artificial forests generated carbon stock, the opportunity cost of carbon stock was negative. Contrarily, restoring artificial forests (which refer to a kind of forest that is formed through artificial planting, cultivation, and conservation) to agricultural land would generate carbon emissions, but create additional income. Since the opportunity cost of carbon storage needs to be lower than the carbon market price so that landlords have incentives to conduct REDD+, the outcomes of this study can provide a reference for the government to set an appropriate subsidy or price for carbon sinks. It is suggested that the government should offer sufficient incentives to reforest collapsed land, and implement interventions, promote carbon trading policies, or regulate the development of agricultural land so as to maintain artificial broadleaf forests for increased carbon storage.


2021 ◽  
pp. 97-105

Background: The current challenge is to reduce the uncertainties in obtaining accurate and reliable data of carbon stock changes and emission factors essential for reporting national inventories. Improvements in above ground biomass estimation can also help account for changes in carbon stock in forest areas that may potentially participate in the Reducing emissions from deforestation and forest degradation and other initiatives. Current objectives for such estimates need a unified approach which can be measurable, reportable, and verifiable. This might result to a geographically referenced biomass density database for Sudanese forests that would reduce uncertainties in estimating forest aboveground biomass. The main objective: of this study is to assess potential of some selected forest variables for modeling carbon sequestration for Acacia seyal, vr. Seyal, Acacia seyal, vr. fistula, Acacia Senegal. The specific objectives include development of empirical allometric models for forest biomass estimation, estimation of carbon sequestration for these tree species, estimation of carbon sequestration per hectare and comparing the amount with that reported to the region. A total of 10 sample trees for biomass and carbon determination were selected for each of the three species from El Nour Natural Forest Reserve of the Blue Nile State, Sudan. Data of diameter at breast height, total tree height, tree crown diameter, crown height, and upper stem diameters were measured. Then sample trees were felled and sectioned to their components, and weighed. Subsamples were selected from each component for oven drying at 105 ˚C. Finally allometric models were developed and the aboveground dry weight (dwt) and carbon sequestered per hector were calculated. The results: presents biomass equations, biomass expansion factor and wood density that developed for the trees. In case of inventoried wood volume, corrections for biomass expansion factor and wood density value were done, and new values are suggested for use to convert wood volume to biomass estimates. The results also, indicate that diameter at breast height, crown diameter and tree height are good predictors for estimation of tree dwt and carbon stock. Conclusion: The developed allometric equations in this study gave better estimation of dwt than default value. The average carbon stock was found to be 22.57 t/ha.


2018 ◽  
Vol 6 (2) ◽  
pp. 51
Author(s):  
Kristian Gomos Banjarnahor ◽  
Agus Setiawan ◽  
Arief Darmawan

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.


Author(s):  
K.K. Vikrant ◽  
D.S. Chauhan ◽  
R.H. Rizvi

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.


2001 ◽  
Vol 31 (11) ◽  
pp. 2004-2013 ◽  
Author(s):  
Jari Liski ◽  
Ari Pussinen ◽  
Kim Pingoud ◽  
Raisa Mäkipää ◽  
Timo Karjalainen

Regulating the rotation length of tree stands is an effective way to manage the carbon budget of forests. We analyzed, using models, how a 30-year change in rotation length from the recommended 90 years would change the carbon and energy budgets of typical wood-production and wood-use chains in Finland. Shortening the rotation length towards the culmination age of mean annual increment decreased the carbon stock of trees but increased the carbon stock of soil, because the production of litter and harvest residues increased. Changes in the carbon stock of wood products varied with tree species depending on volumes and timber sorts harvested, manufacturing processes and products manufactured. The Scots pine (Pinus sylvestris L.) chain stored the largest total amount of carbon when applying the longest rotation length and the Norway spruce (Picea abies (L.) Karst.) chain, when applying the shortest rotation length. Fossil carbon emissions and energy use in harvesting and manufacture increased when the rotation length was shortened and pulpwood harvests increased, especially in the spruce chain. We concluded that longer rotation length at the sites of both tree species would be favourable to carbon sequestration. The costs of this would be decreased timber harvests and decreased revenues of landowners. Our results demonstrate the importance of accounting for the whole wood-production and wood-use chain, including fossil carbon emissions, when analysing the effects of rotation length on forest carbon sequestration.


2018 ◽  
Vol 86 (2) ◽  
Author(s):  
Ali PRAMONO ◽  
. SADMAKA

Global warming and climate change are the world's major environmental, social and economic problems. The agricultural sector can act as an affected victim, greenhouse gas (GHG) contributor, and GHG absorber. Plantations have a very strategic role in the national action plan in GHG mitigation, because it has a great ability to absorb CO2. Therefore, it is necessary to determine the carbon stocks and GHG emissions from plantation management. The objectivesof the study wereto measure GHG emissions,to determine carbon stocks,and to define adaptation and mitigation strategies on climate change in existing coffee plantation systems. Gas samples were taken from 5 sampling points as replications by closedchamber method. Carbon stock estimation was done by destructive technique, including biomass of understorey and non-wood necromass. The results showed that the coffee plantations less than 10 years-oldat the study sites emitted 47 tons CO2-e/ha/year and stored carbon of 91.4 tons C/ha. Climate change adaptation strategies can be done by the application of good agricultural practices (GAP)andthe use of drought-tolerantclones, mulches,shade trees,multiple cropping systems, silt pitsand biophore techniques. The GHG mitigation can be done by the utilization of plantation waste as a source of organic fertilizer, biochar, animal feed, and bioenergy sources through the development of models of integration crop and livestock systems, as well as rejuvenation of plantation crops to increase carbon sinks and stocks.  [Keywords: climate change, carbon sequestration, coffee plantations] Abstrak Pemanasan global dan perubahan iklim menjadi masalah utama lingkungan, sosial dan ekonomi dunia hingga saat ini. Sektor pertanian dapat berperan sebagai korban terdampak, penyumbang Gas Rumah Kaca (GRK), dan penyerapGRK. Tanaman perkebunan mempunyai posisi sangat strategis dalam rencana aksi nasional di sektor pertanian, karena memiliki kemampuan besar dalam menyerap CO2. Oleh karena itu, pengukuran cadangan karbon dan emisi GRK dari pengelolaan perkebunan perlu dilakukan. Tujuan penelitian adalah untuk mengukur emisi GRK, menentukan cadangan karbon dan menetapkan strategi adaptasi dan mitigasi terhadap perubahan iklim pada sistem perkebunan kopi rakyat eksisting di Propinsi Nusa Tenggara Barat. Pengambilan contoh gas dilakukan di limatitik sampling dengan metode sungkup tertutup. Penghitungan cadangan karbon di atas permukaan tanah dilakukan dengan cara destruktifyang mencakup juga penetapan cadangan karbon biomassatanaman bawah dan biomassaserasah (ne-kromas non kayu). Hasil penelitian menunjukkan bahwa perkebunan kopi rakyat yang berumur kurang dari 10 tahun di lokasi penelitianmeng-emisikan karbon sebesar 47 ton CO2-e/ha/tahundan menyimpan cadangankarbon sebesar 91,4ton C/ha. Strategi adaptasi terhadap perubahan iklim dapat dilakukan dengan penerapan praktik Pertanian yang baik/ Good Agricultural Practices(GAP), penggunaan klon tahan kekeringan, penggunaan mulsa organik, pemanfaatanpohon penaungdan sistem tumpang sari, pembuatan rorak dan biopori.Mitigasi GRK dapat dilakukan dengan pemanfaatan limbah tanaman perkebunan sebagai sumber pupukorganik, arang (biochar), pakan ternak, dan sumber bioenergimelalui pengem-bangan model sistem integrasi tanaman dan ternak,serta peremajaan tanaman perkebunan yang sudah menurun produktivitasnya untuk meningkatkan serapan dan cadangankarbon. [Kata kunci :perubahan iklim, sekuestrasi karbon, perkebunan kopi]


2021 ◽  
Author(s):  
Shiferaw Abebe ◽  
Amare Sewnet Minale ◽  
Demel Teketay ◽  
Durai Jayaraman

Abstract Background: Ethiopia is endowed with abundant bamboo resources. However, little is known about biomass, carbon sequestration and storage potential of bamboos. Therefore, this study was conducted to estimate the carbon sequestration and storage potential of Oxytenanthera abyssinica forests in Lower Beles River Basin, Northwestern Ethiopia. To this end, A total of 54 circular plots of 100 m2, with plots having a radius of 5.64, were established to conduct the inventory in Assitsa and Eddida bamboo forests, the typical bamboo sites in Lower Beles River Basin. Biomass accumulation of bamboo was estimated using an allometric equation based on diameter at breast height (DBH) and age. Soil samples were taken from two different soil depths (0 – 15 and 15 – 30 cm) to determine soil organic carbon.Results: Results indicate that a total of 1,620 bamboo culms were measured in the bamboo forests. The mean biomass of the bamboo forests in the study area accounted for about 140.11 ± 2.55 Mg ha-1. The mean biomass carbon and soil organic carbon stock of the bamboo forests were 65. 85 ± 1.19 and 69.70 ± 1.83 Mg C ha-1, respectively. Therefore, the mean carbon stock of the O. abyssinica bamboo forests was 135.63 ± 2.33 Mg C ha-1 with 497.8 ± 8.55 CO2 equivalents. Conclusion: Generally, the O. abyssinica bamboo forests of the study area have significant role in climate change mitigation. Therefore, sustainable management of these crucial vegetation resources will enhance their role in carbon sequestration and thereby, climate change mitigation.


2016 ◽  
Vol 46 (4) ◽  
pp. 485-498 ◽  
Author(s):  
Olivier Blarquez ◽  
Julie C. Aleman

Forest ecosystems in eastern Canada are particularly sensitive to climate change and may shift from carbon sinks to carbon sources in the coming decades. Understanding how forest biomass responded to past climate change is thus of crucial interest, but past biomass reconstruction still represents a challenge. Here we used transfer functions based on modern pollen assemblages and remotely sensed biomass estimation to reconstruct and quantify, for the last 14 000 years, tree biomass dynamics for the six main tree genera of the boreal and mixedwood forests (Abies, Acer, Betula, Picea, Pinus, Populus). We compared the mean genera and total biomass with climatic (summer temperatures and annual precipitation), physical (CO2, insolation, ice area), and disturbance (burned biomass) variables to identify the potential drivers influencing the long-term trends in tree biomass. For most genera, tree biomass was related to summer temperature, insolation, and CO2 levels; Picea was the exception and its biomass also correlated with annual precipitation. At the onset of the Holocene and during the Holocene Thermal Maximum (ca. 10 000–6000 BP), tree biomass tracked the melting of the Laurentide Ice Sheet with high values (>50 tonnes·ha–1 and a total of 12 Pg). These values, in the range of modern forest ecosystems biomass, indicate that trees were probably able to survive in a periglacial environment and to colonize the region without any discernible lag by tracking the ice retreat. High biomass at the beginning of the Holocene was likely favoured by higher than present insolation, CO2 levels higher than during the Last Glacial Maximum, and temperature and precipitation close to present-day levels. Past tree biomass reconstruction thus brings novel insights about the drivers of postglacial tree biomass and the overall biogeography of the region since the deglaciation.


Author(s):  
Fitria Yuliasmara ◽  
Aris Wibawa ◽  
Adi Prawoto

Indonesia has 1.5 million hectare of cocoa plantation in 2008. which hasstrategic position in carbon dioxide absorption to decrease global warming. Biomass approach method in plants carbon stock estimation specific for cocoa is still not available. The aim of this research is to determine carbon stock in 1—30 years ages of cocoa plants and to measure carbon stock in various cocoa planting systems using specific allometric formula of carbon stock estimation. Regression model on plant biomass estimation was estimated based on height, diameter, and their combination. Carbon stock estimation in different ages and plan tation system of cocoa was conducted by randomized completely block design with 3 replications. The result showed that model Y:áDâ as the best allometric formula, where Y is plant biomass, D is diameter at the breast hight, â is a constant with a value of 0.1208 and á was a constant of 1.98. Increasing of carbon stock in cocoa plantations was proportional to the ages of the plants according to the polinomial equation Y=0.0518X2+2.8976X–4.524. Agroforestry system increased carbon stock in cocoa plantation. Cocoa-Paraserianthes falcataria plantation system produce highest of carbon stock in 7 years. Key words : Carbon stock, allometric, cocoa, ages of plant, planting system.


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