Browsing by Author "Lewis, Simon L."

Now showing 1 - 11 of 11

Carbon storage, structure and composition of miombo woodlands in Tanzania’s Eastern Arc Mountains
(Blackwell Publishing Ltd) Shirima, Deo D.; Munishi, Pantaleo K. T.; Lewis, Simon L.; Burgess, Neil D.; Marshall, Andrew R.; Balmford, A.; Swetnam, Ruth D.; Zahabu, E.M
Carbon storage, structure and composition of miombo woodlands in Tanzania’s Eastern Arc Mountains
(Blackwell Publishing Ltd, 2011) Shirima, Deo D.; Munishi, Pantaleo K. T.; Lewis, Simon L.; Burgess, Neil D.; Marshall, Andrew R.; Balmford, A.; Swetnam, Ruth D.; Zahabu, E.M
We determine the aboveground biomass and carbon stor- age (ABGC) of trees and the herbaceous layer in miombo woodland in the Eastern Arc Mountains (EAM) of Tanza- nia. In four 1-ha sample plots in Nyanganje and Kitonga Forests, we measured all trees ‡10 cm diameter alongside height and wood mass density. The plots contained an average of 20 tree species ha )1 (range 11–29) and 344 stems ha )1 (range 281–382) with Shannon diversity values of 1.05 and 1.25, respectively. We weighted nine previously published woody savannah allometric models based on whether: (i) the model was derived from the same geographical region; (ii) the model included tree height ⁄ - wood mass density in addition to stem diameter; and (iii) sample size was used to fit the model. The weighted mean ABGC storage from the nine models range from 13.5 ± 2 to 29.8 ± 5 Mg ha )1 . Measured ABGC storage in the herbaceous layer, using the wet combustion method, adds 0.55 ± 0.02 Mg C ha )1 . Estimates suggest that EAM miombo woodlands store a range of 13–30 Mg ha )1 of carbon. Although the estimates suggest that miombo woodlands store significant quantities of carbon, caution is required as this is the first estimate based on in situ data.
Getting ready for REDD+ in Tanzania: a case study of progress and challenges
(Fauna & Flora International) Dalsgaard, SØren; Funder, Mikkel; Hagelberg, Niklas; Harrison, Paul; Haule, Christognus; Kabalimu, Kekilia; Kilahama, Felician; Kilawe, Edward; Lewis, Simon L.; Lovett, Jon C.; Lyatuu, Gertrude; Marshall, Andrew R.; Meshack, Charles; Miles, Lera; Milledge, Simon A.H.; Munishi, Pantaleo K.T.; Nashanda, Evarist; Shirima, Deo; Swetnam, Ruth D.; Willcock, Simon; Williams, Andrew; Zahabu, Eliakim; Burgess, Neil D.; Bahane, Bruno; Clairs, Tim; Danielsen, Finn
Implementation and opportunity costs of reducing deforestation and forest degradation in Tanzania
(2011 Macmillan Publishers Limited) Fisher, Brendan; Lewis, Simon L.; Burgess, Neil D.; Malimbwi, Rogers E.; Munishi, Panteleo K.; Swetnam, Ruth D.; Turner, Kerry; Willcock, Simon; Balmford, Andrew
Implementation and opportunity costs of reducing deforestation and forest degradation in Tanzania
(2011 Macmillan Publishers Limited, 2011) Fisher, Brendan; Lewis, Simon L.; Burgess, Neil D.; Malimbwi, Rogers E.; Munishi, Panteleo K.; Swetnam, Ruth D.; Turner, Kerry; Willcock, Simon; Balmford, Andrew
The Cancún Agreements provide strong backing for a REDDC (Reducing Emissions from Deforestation and Forest Degradation) mechanism whereby developed countries pay developing ones for forest conservation1. REDDC has potential to simultaneously deliver cost-effective climate change mitigation and human development2–5. However, most REDDC analysis has used coarse-scale data, overlooked important opportunity costs to tropical forest users4,5 and failed to consider how to best invest funds to limit leakage, that is, merely displacing deforestation6. Here we examine these issues for Tanzania, a REDDCcountry, by comparing district-scale carbon losses from deforestation with the opportunity costs of carbon conservation. Opportunity costs are estimated as rents from both agriculture and charcoal production (the most important proximate causes of regional forest conversion7–9). As an alternativewe also calculate the implementation costs of alleviating the demand for forest conversion—thereby addressing the problem of leakage—by raising agricultural yields on existing cropland and increasing charcoal fuel-use efficiency. The implementation costs exceed the opportunity costs of carbon conservation (medians of US$6.50 versus US$3.90 per Mg CO2), so effective REDDC policies may cost more than simpler estimates suggest. However, even if agricultural yields are doubled, implementation is possible at the competitive price of US$12 per Mg CO2.
Increasing Carbon Storage in Intact African Tropical Forests
Lewis, Simon L.; Gonzalez, Gabriela L.; Sonke, Bonaventure; Baffoe, Kofi A.; Baker, Timothy R.; Ojo, Lucas O.; Phillips, Oliver L.; Reitsma, Jan M.; White, Lee; Comiskey, James A.; Djuikouo, Marie N. K.; Ewango, Corneille E. N.; Feldpausch, Ted R.; Hamilton, Alan C.; Gloor, Manuel; Hart, Terese; Hladik, Annette; Lloyd, Jon; Lovett, Jon C.; Makana, Jean R.; Malhi, Yadvinder; Mbago, Frank M.; Ndangalasi, Henry J.; Peacock, Julie; Peh, Kelvin S. H.; Sheil, Douglas; Sunderland, Terry; Swaine, Michael D.; Taplin, James; Taylor, David; Thomas, Sean C.; Votere, Raymond; Woll, Hannsjorg
Land cover change and carbon emissions over 100 years in an African biodiversity hotspot
Willcock, Simon; Phillips, Oliver L.; Platts, Philip J.; Swetnam, Ruth D.; Balmford, Andrew; Burgess, Neil D.; Ahrends, Antje; Bayliss, Julian; Doggart, Nike; Doody, Kathryn; Fanning, Eibleis; Green, Jonathan; Hall, Jaclyn; Howell, Kim; Lovett, Jon C.; Marchant, Rob A.; Marshall, Andrew R.; Mbilinyi, Boniface P.; Munishi, Pantaleo; Owen, Nisha; Jørgensen, Elmer T.; Lewis, Simon L.
Measuring, modeling and mapping ecosystem services in the Eastern Arc Mountains of Tanzania
(SAGE) Fisher, Brendan; Turner, R. Kerry; Burgess, Neil D.; Swetnam, Ruth D.; Green, Jonathan; Green, Rhys E.; Kajembe, George; Kulindwa, Kassim; Lewis, Simon L.
Quantifying and understanding carbon storage and sequestration within the Eastern Arc Mountains of Tanzania, a tropical biodiversity hotspot
Willcock, Simon; Phillips, Oliver L.; Platts, Philip J.; Balmford, Andrew; Burgess, Neil D.; Lovett, Jon C.; Ahrends, Antje; Bayliss, Julian; Doggart, Nike; Doody, Kathryn; Fanning, Eibleis; Green, Jonathan; Hall, Jaclyn; Howell, Kim; Marchant, Rob A.; Marshall, Andrew R.; Mbilinyi, Boniface P.; Munishi, Pantaleo; Owen, Nisha; Swetnam, Ruth D.; Jørgensen, Elmer T.; Lewis, Simon L.
Towards regional, error-bounded landscape carbon storage estimates for data-deficient areas of the world
(PLOS ONE) Willcock, Simon; Phillips, Oliver L.; Platts, Philip J; Balmford, Andrew; Burgess, Neil D.; Lovett, Jon C.; Ahrends, Antje; Mbilinyi, Boniface; Lewis, Simon L.
Towards Regional, Error-Bounded Landscape Carbon Storage Estimates for Data-Deficient Areas of the World
Willcock, Simon; Phillips, Oliver L.; Platts, Philip J.; Balmford, Andrew; Burgess, Neil D.; Lovett, Jon C.; Ahrends, Antje; Bayliss, Julian; Doggart, Nike; Doody, Kathryn; Fanning, Eibleis; Green, Jonathan; Hall, Jaclyn; Howell, Kim; Marchant, Rob A.; Marshall, Andrew R.; Mbilinyi, Boniface P.; Munishi, Pantaleo; Owen, Nisha; Swetnam, Ruth D.; Jørgensen, Elmer T.; Lewis, Simon L.