scholarly journals Allometric equation of local bamboo for estimating carbon sequestration of bamboo riparian forest

2021 ◽  
Vol 905 (1) ◽  
pp. 012002
Author(s):  
C Prayogo ◽  
C Muthahar ◽  
R M Ishaq

Abstract The cause of global warming is the increasing carbon concentration arising from industrial activities, burning of fossils, and land-use change. The purpose of this research was to find out the allometric equation to calculate the local bamboo biomass and then to be able to calculate how much carbon sequestration at bamboo riparian forest since this area was rarely being explored. The parameters observed were the height and diameter of the bamboo stem at 1.3 m height of 6 types of local bamboo using destructive sampling, along with the measurement of bamboo weight. The carbon content of the bamboo biomass, litter, and soil was measured to complement the estimation of total carbon sequestration. The results showed that the allometric equation for estimating local bamboo biomass is Y=0.6396 X1.6162 with R2=0.77, obtained from the relationship equations between dry weight and the diameter. Total carbon sequestration of this system ranged between 81 to 215 tons C ha−1.

2017 ◽  
Author(s):  
Ali Khatibi ◽  
Sharareh Pourebrahim ◽  
Mazlin Mokhtar

Abstract. In this study, in the city of Karaj five classes of land use-cover including residential, agriculture, rangeland, forest and barren areas were considered and randomly in each class a total of 20 points were selected and vegetation and soil samples were taken. In plant samples, the amount of carbon sequestration was determined by calculating the amount of organic carbon by dry weight and in soil samples, the amount of carbon sequestration was determined by using Walleky and Black method, too. For each area, the average value of carbon sequestration of samples was introduced as carbon sequestration index of that class. Average values for each category were determined as an indicator of carbon sequestration of that class and then by using the DINAMICA EGO software a simulation was conducted using cellular automata approach to simulate changes in the classes of land use-cover in the city of Karaj. Finally, by using carbon sequestration index and the results of the simulation, changes in carbon sequestration in each class were calculated. On this basis, it was found that in the 15-year period from 2014 to 2029, not considering the residential class as the effective use of carbon sequestration, the greatest amount of carbon sequestration was found in the agricultural class and the lowest carbon sequestration was found in barren area. Also, agriculture class will be faced with the huge reduction of carbon sequestration, because of expansion of the residential area.


2013 ◽  
Vol 807-809 ◽  
pp. 810-813
Author(s):  
Fei Li ◽  
Hua Yong Zhang ◽  
Zhong Yu Wang ◽  
Zong Han Li

In order to estimate the carbon sequestration of Pinus tabulaeformis forests in Shanxi Province, field measurement data from 36 Pinus tabulaeformis forest stands and the 8th National Forest Resource Inventory data were collected. Using the field measurement data, the relationship between stand volume and stand biomass was established. By applying the relationship and a specific carbon concentration coefficient to the forest inventory data, the carbon sequestrations of nature and planted Pinus tabulaeformis forests in each age class were estimated respectively. The results show that the total carbon sequestration of Pinus tabulaeformis forests in Shanxi Province is 13.43 Tg (1 Tg=1012 g). The nature forests are acting as the major carbon sink, with the carbon sequestration accounting for 64% of the total amount. Among the forests in different age classes, the mid-aged and premature forests have sequestered around 10.92 Tg C, which accounts for 81% of the total carbon sequestration.


2020 ◽  
Author(s):  
Boris Tupek ◽  
Aleksi Lehtonen ◽  
Raisa Mäkipää ◽  
Pirjo Peltonen-Sainio ◽  
Saija Huuskonen ◽  
...  

<p>We aimed to estimate a nation-wide potential to improve the carbon balance of the land use sector by removing part of the current croplands on mineral soil from food and feed production to extensive grasslands or afforestation in Finland.  We combined the existing data on forest and agricultural production, and climate with predictive capacity of YASSO07 soil carbon model to estimate changes of soil carbon stock (SOC) in Finland over the past land use change (LUC) from forest to agriculture in comparison with alternative LUC or continuous agriculture in future.</p><p>The model analysis revealed that SOC loss after deforestation during the cultivation period originated mainly from the absence of woody litter input. The non-woody litter input of the forest was comparable to that of the agricultural residues thus the SOC originating from non-woody litter has not changed much during cultivation. The model estimated approximately a 30 year delay in positive soil carbon balance after the afforestation. Longer for Norway spruce than for the Pubescent birch. The comparison of two dominant tree species used for afforestation highlighted a difference in soil versus biomass carbon sequestration. The total forest biomass production and total carbon stock was larger for spruce stands than for birch stands. However, due to larger foliar and fineroot litter input birch stands sequestered more carbon into the soil than spruce stands. The analysis further revealed that extensification of cropland to grassland would not meet 4 per mill soil carbon sequestration criterion needed for achieving Paris climate CO2 reduction target and due to the spatial limitation of afforestation other management measures need to be considered e.g. adding biochar to soils for successful and more permanent CO2 offsetting.</p>


2021 ◽  
Author(s):  
Junqia Kong ◽  
Zhibin He ◽  
Rong Yang ◽  
Longfei Chen ◽  
Jun Du

Abstract Background: The Northwest China has experienced dramatic changes in agricultural land area in recent years; the effects of these changes on carbon storage are unknown and cannot guide further land development policies related to carbon emissions. In this study, we evaluated the effects of cropland changes (reclamation and transfer) during 1995-2015 on carbon storage in Northwest China by using land use data, carbon density data, and statistical yearbooks with the Intergovernmental Panel on Climate Change (IPCC) method. Results: The results indicated that the area of cropland increased by 1.48×106 ha from 1995 to 2005, resulting in a total carbon sequestration of 12.46 Tg, in which conversion of cropland to forest (11.16 Tg) and other land to cropland (8.92 Tg) were the main sources of the increase in carbon storage. Specifically, regional carbon sequestration due to cropland changes exhibited an increasing trend during 1995-2002 (dominated by cropland transfer), a gradually decreasing trend during 2002-2009 (dominated by cropland reclamation), and stabilization since then (during 2009-2015). Conclusions: These results suggest that the development of high carbon density lands or the conversion of low carbon density lands are critical to increasing future carbon sequestration due to cropland change. We used a novel approach of combining land use data, carbon density data, and statistical yearbooks to assess the impact of cropland change on carbon storage; this method is promising in applications which guide agricultural land-use management.


2019 ◽  
Vol 11 (18) ◽  
pp. 5116 ◽  
Author(s):  
Joungyoon Chun ◽  
Choong-Ki Kim ◽  
Wanmo Kang ◽  
Hyemin Park ◽  
Gieun Kim ◽  
...  

In countries and regions where development projects are frequently implemented, there is a significant change in the value of carbon sequestration services according to land use and land cover (LULC) changes. In this study, we analyzed the changes in the carbon sequestration services which occurred due to the LULC changes over a 20 years period (1989–2009) in Korea where local development projects have been active, since 1990s. As a result, the total carbon stocks decreased by about 0.07 billion t C. Significant changes in the carbon stocks mostly occurred in areas where development projects were frequently implemented. The loss of economic value due to the changes in carbon stocks over 20 years was 4.7 trillion won (4159 million USD) when market price of carbon is applied. Therefore, in countries and regions where there is an active development, it is necessary to monitor the land-use changes with high carbon stocks, to reconsider the value of the carbon when making policy decisions which cause LULC changes, and to internalize social costs into the market prices. Especially at a local level, it is necessary to promote management policy based on carbon sequestration services in accordance with local conditions such as size and types of the changes in carbon stocks.


2018 ◽  
Vol 6 (2) ◽  
pp. 156-163
Author(s):  
Teguh Budi Prakoso ◽  
Norma Afiati ◽  
Djoko Suprapto

ABSTRAKEmisi CO2 yang terakumulasi di atmosfer menyebabkan terjadinya perubahan iklim secara global. Untuk mengurangi dampak perubahan iklim, salah satu upaya yang dapat dilakukan saat ini adalah meningkatkan penyerapan karbon dan/atau menurunkan emisi di atmosfer. Ekosistem mangrove memiliki fungsi ekologis sebagai pereduksi karbon melalui proses sekuestrasi (C-sequestration). Tujuan dari penelitian ini untuk menghitung kerapatan, kandungan karbon dan serapan CO2 serta mengetahui hubungan korelasi kerapatan mangrove dengan kandungan karbon pada tegakan mangrove. Penelitian dilakukan dengan metode non-destructive sampling menggunakan persamaan alometrik. Pendekatan persamaan alometrik yang digunakan yaitu model alometrik biomassa pohon untuk jenis atau tipe ekosistem mangrove yang sudah tersedia atau dikembangkan di lokasi lain. Hasil pengukuran menunjukkan kerapatan tegakan mangrove di area tanam tahun 2004, 2007, dan 2010 adalah 1460 individu/ha, 1868 individu/ha, dan 2128 individu/ha. Biomassa pada area tanam tahun 2004 sebesar 206,77 ton/ha (103,39 ton C/ha, dan menyerap 379,09 ton CO2/ha). Area tanam tahun 2007 memiliki biomassa 293,73 ton/ha (146,86 ton C/ha, dan menyerap 538,50 ton CO2/ha), dan area tanam tahun 2010 memiliki biomassa 260,02 ton/ha (130,01 ton C/ha, dan menyerap 476,67 ton CO2/ha). Berdasarkan hasil penelitian, kerapatan jenis dan umur tegakan mangrove merupakan faktor yang mempengaruhi besarnya biomassa. Hasil uji regresi-korelasi menunjukkan, perubahan kerapatan mangrove akan berpengaruh secara signifikan pada ekosistem mangrove dalam menyimpan karbon dan menyerap CO2 dari atmosfer. Kata Kunci: Mangrove, biomassa, karbon, kerapatan jenis ABSTRACTEmissions of CO2 that accumulated in the atmosphere causes global climate change.  To reduce the impact of climate change, one of the efforts is increased carbon sequestration. The mangrove ecosystem has ecological function as reducing carbon through sequestration process (C-sequestration). Aimed of this research to calculate the density, carbon content and absorption ability CO2 as well as knowing the correlation of mangrove density with carbon sequestration in mangrove. The method used in this research is use non destructive sampling method with allometric equation. The approach allometric equations were used that tree biomass allometric models for the type or types of mangrove ecosystems that are already available or developed in other locations. The measurement results of mangrove density in planting area 2004, 2007 and 2010 were 1,460 individuals/ha, 1868 individuals/ha, and 2128 individuals/ha. Biomass at the planting area in 2004 amounted to 206.77 ton/ha (103.39 ton C/ha, and absorbs 379.09 ton CO2/ha). Planting area in 2007 have biomass 293.73 ton / ha (146.86 ton C/ha, and absorbs 538.50 ton CO2/ha), and the planting area in 2010 have biomass 260.02 ton/ha (130.01 ton C/ha, and absorbs 476.67 ton CO2/ha). Based on the research results, the density of mangrove species and age are factors that influence the amount of tree biomass. The results of regression-correlation analysis showed, if mangrove density change significantly, it can influence the mangrove ecosystem in carbon sequestration and absorb CO2 from the atmosphere. Keywords: Mangrove, biomass, carbon, mangrove density


2019 ◽  
Vol 11 (5) ◽  
pp. 1473 ◽  
Author(s):  
Boyu Yang ◽  
Zhongke Bai ◽  
Yingui Cao ◽  
Feng Xie ◽  
Junjie Zhang ◽  
...  

Opencast coal mining causes serious damage to the natural landscape, resulting in the depletion of the carbon sequestration capacity in the mining activity. There are few studies on the variation of carbon sequestration capabilities caused by land use changes in opencast mining areas. This paper uses six images were used to quantify the changes in land use types from 1986 to 2015 in the Pingshuo mining area in northwest China. At the same time, used statistical analysis and mathematical models to study soil and vegetation carbon sequestration. Results indicate that the total carbon sequestration exhibits a significant downward trend from 4.58 × 106 Mg in 1986 to 3.78 × 106 Mg in 2015, with the decrease of soil carbon sequestration accounting for the largest proportion. The carbon sequestration of arable land accounted for 51% of the total carbon sequestration in the mining area, followed by grassland (31%) and forestland (18%). Land reclamation contributed to the greatest increase in carbon sequestration of arable land from 17,890.15 Mg (1986) to 27,837.95 Mg (2015). Additionally, the downward trend in the carbon sequestration capacity of the mining ecosystem was mitigated after 2010 as the positive effects of land reclamation gradually amplified over time and as the mining techniques were greatly optimized in recent years in the Pingshuo mining area. Thus, terrestrial carbon sequestration can be improved through land reclamation projects and optimized mining activities. These results can help guide the utilization of reclaimed land in the future.


2015 ◽  
Vol 3 (3) ◽  
pp. 51-60
Author(s):  
Engku Azlin Rahayu Engku Ariff ◽  
Mohd Nazip Suratman ◽  
Shamsiah Abdullah

Deforestation occurs due to agriculture and agroforestry. Since it can alter the whole ecosystem and can change regional and global climate, Malaysia is one of the membersof United Nation Framework on Climate Change (UNFCCC) which applies Kyoto protocol to curb this problem. Despite the large number of studies on rubber plantation, only a few studies focus on the development of allometric equation for estimating carbon sequestration for rubber plantation in Malaysia. This research studies the correlation of carbon sequestration and plant physiology of rubber trees using non-destructive sampling. In this research, the data were collected from rubber plantations in Selangor. The rubber trees chosen were in the range between 1 to 28 years old. The number of trees sampled in this research was 150 for each selected age (1, 2, 3, 5, 6, 8, 10, 13, 15, 17, 19, 20, 23 and 28 years) totalling 2100 trees. Allometric equation of this research was developed by using carbon sequestration as a response variable (Y) and 8 of the chosen predictor variables, which are diameter at breast height (DBH), height (HT), chlorophyll content (CC), stomatal conductance (SC), photosynthesis (PN), transpiration (TRPT), leaf area index (LAI) and age (AG). Based on the statistical indicators, the most suitable model is ln(Y) = c + aln(DBH) + bln(HT) + cln(AG). This model is highly reliable for its accuracy in measurement for forest managers to estimate carbon sequestration in rubber trees. Therefore, the research findings can be extrapolated accurately for managing secondary forests related to carbon balance. As for the additional explanatory variables such as CC, SC, PN, TRPT and LAI they do not fit the indicators’ goodness of fit for the equation. The research findings complement the previous research as well as the methodology of the Good Practice Guidance for Land Use and Land Use Change and Forestry (GPG-LULUCF).


Author(s):  
Korra Simhadri ◽  
Syam Kumar Bariki ◽  
A.V.V.S. Swamy

The potential of carbon sequestration of tree species in the Chintapalle forest range, of Narsipatnam Division, was estimated by using a non-destructive method. The sequestration of 6033 trees belonging to 22 species was investigated; the approximate height of tree species and the diameter at breast height (DBH) were measured for the estimation of CO2 sequestration. The maximum weight of carbon was observed in Pongamia pinnata (L.) Pierre species i.e (37987.06 kg) and the minimum weight of carbon was noted in Phyllanthus emblica L. species i.e is (61.8kg). The total carbon sequestrated by the entire tree species was (2370614.0 kg), The average carbon sequestered was (39865.81 kg). The highest sequestration was noted in the species P. pinnata (L.) Pierre i.e. (139271.95 kg) and the lowest (226.79 kg) was noted in the species P. emblica L. The maximum average DBH with maximum carbon sequestration potential was observed in Ficus benghalensis L. species, with higher total green (AGW) observed in all sites, whereas minimum average DBH with minimum carbon sequestration potential was noted in Bambusa vulgaris species. The regression analysis tests the relationship between two variables. The height of trees has no significant impact on the amount of CO2 sequestered F (32085087175.84, 12946607900) = 2.478262; P ? 0.05, which indicates that the tree height plays an insignificant role in CO2 sequestration (? = 2713.28 P ? 0.05). The dependent variable CO2 sequestered was also regressed on the predictor variable soil organic carbon (SOC) to test the relationship. SOC insignificantly predicted CO2 sequestrated F (5.83, 2.62) = 0.2236; P ? 0.25, indicating that the SOC has an insignificant role in CO2 sequestration (? = 102780.3 P ? 0.05). Insignificant relation was observed between the parameters SOC and height of tree species to the rate of carbon dioxide sequestered, and gave a regression equation of y = 10278x + 50863 with R2 = 0.100; y=2713.285803x-209800.8762 with R2 = 0.55


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