Estimating Carbon Stock of a Protected Tropical Forest in Cebu, Central Philippines<br />Edgar E. Borga Jr., Ramon Earl L....
Introduction<br />Climate Change Phenomenon<br />Atmospheric CO2increase<br />Tropical Forests<br />Sequester more carbon ...
Introduction<br />Cebu is heavily deforested<br />Reforestation Programs<br />Most Common Species<br />Swieteniamacrophyll...
Objectives and Limitations<br />Objectives<br />To measure stored carbon in the forest in vegetation, soil and litter carb...
Methodology<br />
Study Site<br />Buhisan Watershed Forest Reserve<br />BarangayToong (52.4 ha or 8.6% of BWFR) <br />Rugged terrain and irr...
Sampling<br />First week of April<br />Twenty 20x20 m plots (Ramachandran et al. 2007)<br />10 homogenous<br />10 heteroge...
Vegetation Analysis<br />Survey<br />20, 20m x 20m subplots<br />Diameter at breast height (DBH)<br />Density, Dominance &...
Vegetation/Biomass Carbon Estimation<br />DBH (<5cm)<br />Above Ground (Brown, 1997)<br />Y (AGB) = 42.69-12.800(D)+1.242(...
Litterfall Carbon<br />Litter plot 1x1m (Gosz, 1980)<br />Monthly Collection<br />Leaves, wood, fruit and flowers<br />% C...
Soil Organic Carbon Estimation<br />0-30 cm depth<br />Bulk Density <br />Core Method<br />Monthly Collection<br />%SOC <b...
Statistical Analysis<br />SOC, Leaf carbon litter, biomass carbon, and overall forest carbon<br />ANOVA<br />Post hoc of T...
Results and Discussion<br />
Vegetation Analysis<br />Overall 17 species of trees (Table 1)<br />Barangay Toong is a heavily reforested area.<br />Most...
Biomass Carbon<br />Average: 653.9 t C per hectare<br />Homogenous area is considerably higher<br />Figure 4. Above and Be...
Litterfall Carbon<br />Figure 7 Litterfall in study site, for leaves, wood, and fruits/flowers in homogenous and heterogen...
Soil Organic Carbon<br />Figure 8. Monthly average SOC(+SD) of Buhisan Watershed Forest Resreve in barangayToong from Apri...
Overall Carbon Stock in 3 pools<br />* Significant Between 3 Pools (Biomass, Soil,  and Soil)<br />
Stored Carbon in Relation to Fossil Fuels<br />Gasoline: 640 g C / Liter<br />Diesel:  734 g C / Liter<br />(Source: U. S....
Conclusions and Recommendations<br />No significant difference between two area types within the study period for carbon s...
References<br />Brown, S. 1997. Estimating biomass and biomass change of 	tropical forest: A primer. Rome: Food 	and 	Agri...
Thank you<br />
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Estimating Carbon Stock of a Protected Tropical Forest in Cebu, Central Philippines

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Undergraduate thesis made with more limitations of the study than objectives, more recommendations than results. With only one reason: financial and logistic constraint.
Title: Estimating Carbon Stock of a Protected Tropical Forest in Cebu, Central Philippines
Proponents: Edgar Borga Jr. & Ramon Earl Labrada
Adviser: Neriza Arche MS

Note: This is not a peer reviewed study. (Obviously)

Just wanted to post this.
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Transcript of "Estimating Carbon Stock of a Protected Tropical Forest in Cebu, Central Philippines"

  1. 1. Estimating Carbon Stock of a Protected Tropical Forest in Cebu, Central Philippines<br />Edgar E. Borga Jr., Ramon Earl L. Labrada & NerizaArche MS<br />
  2. 2. Introduction<br />Climate Change Phenomenon<br />Atmospheric CO2increase<br />Tropical Forests<br />Sequester more carbon (Brown et al. 1997)<br />Image Source: http://www.treehugger.com/<br />
  3. 3. Introduction<br />Cebu is heavily deforested<br />Reforestation Programs<br />Most Common Species<br />Swieteniamacrophylla (Mahogany)<br />Tectona grandis(Teak)<br />No databank on carbon stock (DENR)<br />
  4. 4. Objectives and Limitations<br />Objectives<br />To measure stored carbon in the forest in vegetation, soil and litter carbon pools<br />Limitations<br />No remote sensing<br />Maximum timeframe<br />No atmospheric carbon flux and microbial activity assessment<br />Non parametric analysis was made on data which did not meet assumptions for parametric analysis.<br />
  5. 5. Methodology<br />
  6. 6. Study Site<br />Buhisan Watershed Forest Reserve<br />BarangayToong (52.4 ha or 8.6% of BWFR) <br />Rugged terrain and irregular elevation ranging from 100m to 400m ASL<br />Tectona grandis(Teak) and Swieteniamacrophylla (Mahogany)<br />Soil is limestone with limestone rock covered with clay to loam soil<br />Divided between homogenous and heterogeneous areas<br />
  7. 7.
  8. 8. Sampling<br />First week of April<br />Twenty 20x20 m plots (Ramachandran et al. 2007)<br />10 homogenous<br />10 heterogeneous<br />Randomly Followed traversable roads and trails<br />For each 15 minutes walking, a site was randomly chosen<br />When required number of heterogeneous sites were obtained – only homogenous sites were further sampled<br />
  9. 9. Vegetation Analysis<br />Survey<br />20, 20m x 20m subplots<br />Diameter at breast height (DBH)<br />Density, Dominance & Importance value<br />
  10. 10. Vegetation/Biomass Carbon Estimation<br />DBH (<5cm)<br />Above Ground (Brown, 1997)<br />Y (AGB) = 42.69-12.800(D)+1.242(D²)<br />Below Ground (Cairns et al. 1997)<br />Y (BGB) = exp(-1.0850+0.9256(In Y (AGB))<br />50% is carbon (Brown et al 1995)<br />Image source: http://harvardforest.fas.harvard.edu/<br />
  11. 11. Litterfall Carbon<br />Litter plot 1x1m (Gosz, 1980)<br />Monthly Collection<br />Leaves, wood, fruit and flowers<br />% C via Gravimetric method of dry combustion (Eaton and Lawrence, 2008 and Chan, 1982)<br />
  12. 12. Soil Organic Carbon Estimation<br />0-30 cm depth<br />Bulk Density <br />Core Method<br />Monthly Collection<br />%SOC <br />Walkey & Black's Wet Oxidation Method (Mingorance et al. 2007)<br />Monthly % SOC x Bulk density<br />
  13. 13. Statistical Analysis<br />SOC, Leaf carbon litter, biomass carbon, and overall forest carbon<br />ANOVA<br />Post hoc of Tukey’s HSD (monthly)<br />Wood, fruit and flower litter carbon <br />Mann–Whitney U Test<br />
  14. 14. Results and Discussion<br />
  15. 15. Vegetation Analysis<br />Overall 17 species of trees (Table 1)<br />Barangay Toong is a heavily reforested area.<br />Mostly are occupied by Tectona grandis and Swieteniamacrophylla.<br />Table 1. Density, dominance, importance values, DBH, of majortree species in heterogeneous areas of Barangay Toong. (Mean ± SE)<br />
  16. 16. Biomass Carbon<br />Average: 653.9 t C per hectare<br />Homogenous area is considerably higher<br />Figure 4. Above and Below Ground Biomass Carbon (Mean+SE) of the study area<br />
  17. 17. Litterfall Carbon<br />Figure 7 Litterfall in study site, for leaves, wood, and fruits/flowers in homogenous and heterogeneous areas(±SE) from April to August 2010..<br />Figure 5. Climatograph of PAG-ASA from April to August 2010, Mactan Island, Cebu<br />
  18. 18. Soil Organic Carbon<br />Figure 8. Monthly average SOC(+SD) of Buhisan Watershed Forest Resreve in barangayToong from April to August 2010<br />
  19. 19. Overall Carbon Stock in 3 pools<br />* Significant Between 3 Pools (Biomass, Soil, and Soil)<br />
  20. 20. Stored Carbon in Relation to Fossil Fuels<br />Gasoline: 640 g C / Liter<br />Diesel: 734 g C / Liter<br />(Source: U. S. Environmental Protection Agency)<br />Forest age of 60 years<br />Density of 1 tree in every 19.75 sq m<br />
  21. 21. Conclusions and Recommendations<br />No significant difference between two area types within the study period for carbon storage<br />Longer temporal scale, as well as better means of measuring carbon stored. <br />Buhisan Watershed Forest Reserve <br />Protected against anthropogenic disturbance <br />More efforts should be made to convert idle lands to secondary forests<br />
  22. 22. References<br />Brown, S. 1997. Estimating biomass and biomass change of tropical forest: A primer. Rome: Food and Agriculture Association of the United Nations, FAO.<br />Chan, Y.H. 1982. Storage and release of organic carbon in peninsular Malaysia. IntJournEnvi Stud. 18(3-4):211-222.<br />DENR Region 7. 2003. Management Plan: Central Cebu Protected Landscape. <br />Eaton, J.M., Lawrence, D. 2008. Loss of carbon sequestration potential after several decades of shifting cultivation in the Southern Yucatán. Forest Ecol. Manag 258:949-58.<br />Gosz, J.R. 1980. Biomass distribution and production budget for a nonaggrading forest ecosystem. Ecology 61:507–14.<br />Mingorance, M.D., Barahona, E., Fernández-Gálvez, J. 2007. Guidelines for improving organic carbon recovery by the wet oxidation method. Chemosphere 68:409–13.<br />
  23. 23. Thank you<br />

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