The importance of local forest benefits: Economic valuation of non-timber forest products in the eastern Arc mountains in Tanzania

Global Environmental Change

Volumn 24, Issue 1, 2014, Pages 295-305

  Schaafsma, M ^a   Morse Jones, S ^a,b   Posen, P ^a   Swetnam, R D ^c,d   Balmford, A ^c   Bateman, I J ^a   Burgess, N D ^c,e,f   Chamshama, S A O ^g   Fisher, B ^a,h   Freeman, T ⁱ   Geofrey, V ^j   Green, R E ^c,k   Hepelwa, A S ^l   Hernandez Sirvent A ^m   Hess, S ⁿ   Kajembe, G C ^g   Kayharara, G ^j   Kilonzo, M ^g   Kulindwa, K ^l,o   Lund, J F ^p   Madoffe, S S ^g   Mbwambo, L ^q   Meilby, H ^p   Ngaga, Y M ^g   Theilade, I ^p   Treue, T ^p   van Beukering, P ^r   Vyamana, V G ^g   Turner, R K ^a   more..

^a UNIVERSITY OF EAST ANGLIA   (United Kingdom)

^b FAUNA AND FLORA INTERNATIONAL   (United Kingdom)

^c UNIVERSITY OF CAMBRIDGE   (United Kingdom)

^d STAFFORDSHIRE UNIVERSITY   (United Kingdom)

^e WORLD WILDLIFE FUND   (United States)

^f UNIVERSITY OF COPENHAGEN   (Denmark)

^g SOKOINE UNIVERSITY OF AGRICULTURE   (Tanzania)

^h PRINCETON UNIVERSITY   (United States)

ⁱ CRANFIELD UNIVERSITY   (United Kingdom)

^j Centre for Environmental Economics and Development Research (CEDR)   (Tanzania)

^k RSPB CENTRE FOR CONSERVATION SCIENCE   (United Kingdom)

^l UNIVERSITY OF DAR ES SALAAM   (Tanzania)

^m UNIVERSITY OF OXFORD   (United Kingdom)

ⁿ Hess Environmental Economic Analyst   (Netherlands)

^o NORWEGIAN UNIVERSITY OF LIFE SCIENCES   (Norway)

^p UNIVERSITY OF COPENHAGEN   (Denmark)

^q Tanzania Forestry Research Institute   (Tanzania)

^r INSTITUTE FOR ENVIRONMENTAL STUDIES   (Netherlands)

more..

Author keywords

Benefit transfer; Ecosystem services; Environmental valuation; Forest conservation; Non Timber Forest Products

Indexed keywords

EID: 84894296330     PISSN: 09593780     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.gloenvcha.2013.08.018     Document Type: Article

References (116)

1. Adams W.M., Aveling R., Brockington D., Dickson B., Elliott J., Hutton J., Vira B., Wolmer W. Biodiversity conservation and the eradication of poverty. Science 2004, 306(599):1146-1149.
2. Ahrends A., Burgess N.D., Milledge S.A.H., Bulling M.T., Fisher B., Smart J.C.R., Clarke G.P., Mhoro B.E., Lewis S.L. Predictable waves of sequential forest degradation and biodiversity loss spreading from an African city. Proc. Natl. Acad. Sci. U. S. A. 2010, 107(33):14556-14561.
3. Amacher G.S., Hyde W.F., Kanel K.R. Household fuelwood demand and supply in Nepal's Tarai and mid-hills: choice between cash outlays and labor opportunity. World Dev. 1996, 24(11):1725-1736.
4. Ambrose-Oji B. The contribution of NTFPs to the livelihoods of the 'forest poor': evidence from the tropical forest zone of south-west Cameroon. Int. For. Rev. 2003, 5(2):106-117.
5. Anthon S., Lund J.F., Helles F. Targeting the poor: taxation of marketed forest products in developing countries. J. Forest Econ. 2008, 14(3):197-224.
6. Arnold M., Köhlin G., Persson R., Shepherd G. Fuelwood revisited: what has changed in the last decade?. CIFOR Occasional Paper No. 39. CIFOR, Bogor, Indonesia 2003.
7. Balmford A., Whitten T. Who should pay for tropical conservation, and how could the costs be met?. Oryx 2003, 37(2):238-250.
8. Bank of Tanzania, 2011. http://www.bot-tz.org/.
9. Batagoda B.M.S., Turner R.K., Tinch R., Brown K. Towards policy relevant ecosystem services and natural capital values: rainforest non-timber products. CSERGE Working Paper CEC 2000-06 2000.
10. de Beer J.H., McDermott M.J. Economic value of non-timber forest products in south-east Asia. Council for the International Union of the Conservation of Nature 1989.
11. Blom B., Sunderland T., Murdiyarso D. Getting REDD to work locally: lessons learned from integrated conservation and development projects. Environ. Sci. Policy 2010, 13(2):164-174.
12. Blomley T., Iddi S. Participatory Forest Management in Tanzania 1993-2009: Lessons Learned and Experiences to Date 2009, United Republic of Tanzania, Ministry of Natural Resources and Tourism, Forestry and Beekeeping Division. http://www.reddtz.org/.
13. Blomley T., Maharjan R.M., Meshack C. Exploring the rationale for benefit sharing in community forestry: Experiences from Tanzania and Nepal. Paper Presented at Community Forestry International Workshop, Pokhara, Nepal 2009, http://www.forestrynepal.org/.
14. Bonan G.B. Forest and climate change: forcings, feedbacks and the climate benefits of forests. Science 2008, 320(5882):444-449.
15. Boyd J., Banzhaf S. What are ecosystem services? The need for standardized environmental accounting units. Ecol. Econ. 2007, 63:616-626.
16. Boyle K.J., Kuminoff N.V., Parmeter C.F., Pope J.C. Necessary conditions for valid benefit transfers. Am. J. Agric. Econ. 2009, 91(5):1328-1334.
17. Brandon K., Gorenflo L.J., Rodrigues A.S.L., Waller R.W. Reconciling biodiversity conservation, people, protected areas, and agricultural suitability in Mexico. World Dev. 2005, 33(9):1403-1418.
18. Burgess N.D., Clarke G.P. Coastal Forests of Eastern Tanzania. International Union for Conservation of Nature and Natural Resources 2000, IUCN Publications Services Unit, Cambridge, UK.
19. Burgess N.D., Butynski T.M., Cordeiro N.J., Doggart N.H., Fjeldsa J., Howell K.M., Kilahama F.B., Loader S.P., Lovett J.C., Mbilinyi B., Menegon M., Moyer D.C., Nashanda E., Perkin A., Rovero F., Stanley W.T., Stuart S.N. The biological importance of the Eastern Arc Mountains of Tanzania and Kenya. Biol. Conserv. 2007, 134(2):209-231.
20. Burgess N.D., Bahane B., Claris T., Daniesen F., Dalsgaard S., Funder M., Hagelberg N., Harrison P., Haule C., Kabalimu K., Kilahama F., Kilawe E., Lewis S.L., Lovell J.C., Tyatuu G., Marshall A.R., Meshack C., Miles L., Milledge S.A.H., Munishi P.K.T., Nashanda E., Shirima D., Swetnam R.D., Willcock S., Williams A., Zahabu E. Getting ready for REDD+ in Tanzania: a case study of progress and challenges. Oryx 2010, 44(3):351-399.
21. Cameron A.C., Trivedi P.K. Microeconometrics: Methods and Applications 2005, Cambridge University Press, Cambridge, UK.
22. Campbell B.M., Angelsen A., Cunningham A., Katerere Y., Sitoe A., Wunder S. Miombo Woodland: Opportunities and Barriers to Sustainable Forest Management 2008, CIFOR, Bogor, Indonesia.
23. Cavendish W. Empirical regularities in the poverty-environment relationship of rural households: evidence from Zimbabwe. World Dev. 2000, 28(11):1179-2000.
24. CBD - Convention on Biological Diversity CBD Decision VI/26 Strategic Plan for the Convention on Biological Diversity 2002, http://www.biodiv.org/decisions/default.aspx%3Flg=0%26dec=VI/26.
25. CBD - Convention on Biological Diversity COP 10 Decisions. Nagoya, Japan 2010, http://www.cbd.int/decisions/cop/%3Fm=cop-10.
26. Chiesa F., Dere M., Saltarelli E., Sandbank H. UN-REDD in Tanzania. Project on Reducing Emissions from Deforestation and Forest Degradation in Developing Countries 2009, Johns Hopkins School of Advanced International Studies/UNEP World Conservation Monitoring Centre, Washington DC/Cambridge, UK.
27. Chomitz K.M., Buys P., De Luca G., Thomas T.S., Wertz-Kanounnikoff S. At Loggerheads? Agricultural Expansion, Poverty Reduction and Environment in the Tropical Forests 2007, World Bank, Washington, DC, ISBN: 0-8213-6853-2.
28. Clements T., John A., Nielsen K., An D., Tan S., Milner-Gulland E.J. Payments for biodiversity conservation in the context of weak institutions: comparison of three programs from Cambodia. Ecol. Econ. 2010, 69(6):1283-1291.
29. Corbera E., Brown K., Adger W.N. The equity and legitimacy of markets for ecosystem services. Dev. Change 2007, 38(4):587-613.
30. Croitoru L. Valuing the non-timber forest products in the Mediterranean region. Ecol. Econ. 2007, 63(4):768-775.
31. Daily G.C., Polasky S., Goldstein J., Kareiva P.M., Mooney H.A., Pejchar L., Ricketts T.H., Salzman J., Shallenberger R. Ecosystem services in decision making: time to deliver. Front. Ecol. Environ. 2009, 7(1):21-28.
32. Dirzo R., Raven P.H. Global state of biodiversity and loss. Annu. Rev. Environ. Resour. 2003, 28(1):137-167.
33. Engel S., Pagiola S., Wunder S. Designing payments for environmental services in theory and practice: an overview of the issues. Ecol. Econ. 2008, 65(4):663-674.
34. Fisher B., Turner K., Zylstra M., Brouwer R., de Groot R., Farber S., Ferraro P., Green R., Hadley D., Harlow J., Jefferiss P., Kirkby C., Morling P., Mowatt S., Naidoo R., Paavola J., Strassburg B., Yu D., Balmford A. Ecosystem services and economic theory: integration for policy-relevant research. Ecol. Appl. 2008, 18(8):2050-2067.
35. Fisher B., Turner R.K., Morling P. Defining and classifying ecosystem services for decision making. Ecol. Econ. 2009, 68(3):643-653.
36. Fisher B., Turner R.K., Burgess N.D., Swetnam R.D., Green J., Green R., Kajembe G., Kulindwa K., Lewis S., Marchant R., Marshall A.R., Madoffe S., Munishi P.K.T., Morse-Jones S., Mwakalila S., Paavola J., Naidoo R., Ricketts T., Rouget M., Willcock S., White S., Balmford A. Measuring, modeling and mapping ecosystem services in the Eastern Arc Mountains of Tanzania. Prog. Phys. Geogr. 2011, 35:595-611.
37. Fisher B., Lewis S.L., Burgess N.D., Malimbwi R.E., Munishi P.K., Swetnam R.D., Turner R.K., Willcock S., Balmford A. Implementation and opportunity costs of reducing deforestation and forest degradation in Tanzania. Nature Clim. Change 2011, 1:161-164.
38. Freeman T. Household Perceptions of the Provisioning Services of Forests in the Mahenge Area, Tanzania 2010, School of Applied Sciences, Cranfield University, UK, (MSc Thesis).
39. Godoy R., Lubowski R., Markandya A. A method for the economic valuation of non-timber tropical forest products. Econ. Bot. 1993, 47(3):220-233.
40. Greene W.H. Accounting for Excess Zeros and Sample Selection in Poisson and Negative Binomial Regression Models. NYU Working Paper No. EC-94-10 1994, New York University, USA.
41. Hein L., van Koppen K., de Groot R.S., van Ierland E.C. Spatial scales, stakeholders and the valuation of ecosystem services. Ecol. Econ. 2006, 57(2):209-228.
42. Hofstad O. Woodland deforestation by charcoal supply to Dar es Salaam. J. Environ. Econ. Manag. 1997, 33:17-32.
43. Hofstad O. A theoretical analysis of illegal wood harvesting as predation - with two Ugandan illustrations. Scand. Forest Econ. 2008, 42:441-452.
44. Hofstad O., Köhlin G., Namaalwa J. How can emissions from woodfuel be reduced?. Realising REDD+: National Strategy and Policy Options 2009, CIFOR, Bogor, Indonesia. A. Angelsen, M. Brockhaus, M. Kanninen, E. Sills, W.D. Sunderlin, S. Wertz-Kanounnikoff (Eds.).
45. IPCC - Intergovernmental Panel on Climate Change Guidelines for National Greenhouse Gas Inventories-Volume 4: Agriculture, Forestry and Other Land Use (AFOLU) 2006, http://www.ipcc-nggip.iges.or.jp/public/2006gl/vol4.html.
46. Kamanga P., Vedeld P., Sjaastad E. Forest incomes and rural livelihoods in Chiradzulu District, Malawi. Ecol. Econ. 2009, 68(3):613-624.
47. Kellert S.R., Mehta J.N., Ebbin S.A., Lichtenfeld L.L. Community natural resource management: promise, rhetoric, and reality. Soc. Nature Resour. 2000, 13:705-715.
48. Köhlin G., Parks P.J. Spatial variability and disincentives to harvest: deforestation and fuelwood collection in South Asia. Land Econ. 2001, 77(2):206-218.
49. Korongo Ltd, REPOA Poverty and the Environment in Tanzania: A Preliminary Study of Environment and Poverty Linkages 2003, Study Commissioned by the World Bank, Dar es Salaam Country Office, Tanzania.
50. Lund J.F., Treue T. Are we getting there? Evidence of decentralized forest management from the Tanzanian Miombo Woodlands. World Dev. 2008, 36(12):2780-2800.
51. Luoga E.J., Witkowski E.T.R., Balkwill K. Economics of charcoal production in miombo woodlands of eastern Tanzania: some hidden costs associated with commercialization of the resources. Ecol. Econ. 2000, 35(2):243-257.
52. Malimbwi R.E., Zahabu E.M. Woodlands and the charcoal trade: the case of Dar es Salaam City. Working Papers of the Finnish Forest Research Institute, vol. 98 2008.
53. Mamo G., Sjaastad E., Vedeld P. Economic dependence on forest resources: a case from Dendi District, Ethiopia. Forest Policy Econ. 2007, 9(8):916-927.
54. Matthews D.I., Hutchison W.G., Scarpa R. Testing the stability of the benefit transfer function for discrete choice contingent valuation data. J. Forest Econ. 2009, 15(1-2):131-146.
55. McShane T.O., Hirsch P.D., Trung T.C., Songorwa A.N., Kinzig A., Monteferri B., Matugkanga D., Thang H.V., Dammert J.L., Pulgar-Vidal M., Welch-Devine M., Brosius J.P., Coppolillo P., O'Connor S. Hard choices: making trade-offs between biodiversity conservation and human well-being. Biol. Conserv. 2010, 144(3):966-972.
56. Meshack C.K., Ahdikari B., Doggart N., Lovett J.C. Transaction costs of community-based forest management: empirical evidence from Tanzania. Afr. J. Ecol. 2006, 44:468-477.
57. MNRT Participatory Forest Management in Tanzania. Facts and Figures 2008, Forestry and Beekeeping Division, Ministry of Natural Resources and Tourism, Tanzania.
58. Monela G.C., Chamshama S.A.O., Mwaipopo R., Gamassa D.M. A study on the social, economic and environmental impacts of forest landscape restoration in Shinyanga Region, Tanzania. Final Report to the Ministry of Natural Resources and Tourism and IUCN, Tanzania 2005.
59. Mwampamba T.H. Has the woodfuel crisis returned? Urban charcoal consumption in Tanzania and its implications to present and future forest availability. Energy Policy 2007, 35(8):4221-4234.
60. Myers N., Mittermeier R.A., Mittermeier C.G., da Fonseca G.A.B., Kent J. Biodiversity hotspots for conservation priorities. Nature 2000, 403:853-858.
61. Naidoo R., Balmford A., Constanza R., Fisher B., Green R.E., Lehner B., Malcolm T.R., Ricketts T.H. Global mapping of ecosystem services and conservation priorities. Proc. Natl. Acad. Sci. U. S. A. 2008, 105(28):9495-9500.
62. Naidoo R., Adamowicz W.L. Economic benefits of biodiversity exceed costs of conservation at an African rainforest reserve. Proc. Natl. Acad. Sci. U. S. A. 2005, 102(46):16712-16716.
63. Naidoo R., Ricketts T. Mapping economic costs and benefits of conservation. PLoS Biol. 2006, 4(11):2153-2164.
64. Navrud S., Ready R. Review of methods for value transfer. Environmental Value Transfer: Issues and Methods 2007, Springer, Dordrecht, The Netherlands. S. Navrud, R. Ready (Eds.).
65. NBS - National Bureau of Statistics Tanzania, 2003. Tanzanian Agriculture Sample Census - 2003. Dar es Salaam, Tanzania.
66. NBS - National Bureau of Statistics Tanzania, 2009. Household Budget Survey 2007. Chapter 7: Income Poverty and Inequality. Dar es Salaam, Tanzania.
67. Ndangalasi H.J., Bitariho R., Dovie D.B.K. Harvesting of non-timber forest products and implications for conservation in two montane forests of East Africa. Biol. Conserv. 2007, 134(2):242-250.
68. Neumann R.P., Hirsch E. Commercialisation of Non-timber Forest Products: Review and Analysis of Research 2000, CIFOR, Bogor, Indonesia.
69. Ngaga Y.M., Kajembe G.C., Chamshama S.A.O., Treue T., Meilby H., Lund J.F., Burgess N., Brockington D. Applied Research in Participatory Forest Management (PFM): Assessing Under Which Conditions PFM Contribute to the Goals of Poverty Reduction, Sustainable Forest Management and Improved Local Governance in Tanzania. Brief Mid-term Report July 2009.
70. OECD Instrument Mixes for Environmental Policy 2007, OECD, Paris, France.
71. Pagiola S., Platais G. Payments for Environmental Services: From Theory to Practice 2007, World Bank, Washington.
72. Pagiola S., Bosquet B. Estimating the costs of REDD at the country level. MPRA Paper 13726, University Library of Munich, Germany 2009, (revised 22.09.09).
73. Palmer C., MacGregor J. Fuelwood scarcity, energy substitution, and rural livelihoods in Namibia. Environ. Dev. Econ. 2009, 14(6):693-715.
74. Pattanayak S.K., Sills E.O. Do tropical forests provide natural insurance? The microeconomics of non-timber forest product collection in the Brazilian Amazon. Land Econ. 2001, 77(4):595-612.
75. Persha L., Blomley T. Management decentralization and montane forest conditions in Tanzania. Conserv. Biol. 2009, 23(6):1485-1496.
76. Persha L., Agrawal A., Chhatre A. Social and ecological synergy: local rulemaking, forest livelihoods, and biodiversity conservation. Science 2011, 31(6024):1606-1608.
77. Pfleigner K. The Impacts of Joint Forest Management on Forest Condition, Livelihoods and Governance: Case studies from Morogoro Region in Tanzania 2011, University of East Anglia, UK, (PhD Thesis).
78. Pirard R., Billé R., Sembrés T. Upscaling payments for environmental services (PES): critical issues. Trop. Conserv. Sci. 2010, 3(3):249-261.
79. Platts P.J., Burgess N.D., Gereau R.E., Lovett J.C., Marshall A.R., McClean C.J., Pellikka P.K.E., Swetnam R.D., Marchant R. Delimiting tropical mountain ecoregions for conservation. Environ. Conserv. 2011, 38(3):1-14.
80. Robinson E.J.Z., Williams J.C., Albers H.J. The influence of markets and policy on spatial patterns of non-timber forest product extraction. Land Econ. 2002, 78(2):260-271.
81. Robinson E.J.Z., Williams J.C., Albers H.J. Spatial and temporal modelling of community non-timber forest extraction. J. Environ. Econ. Manage. 2008, 56(3):234-245.
82. Robinson E.J.Z., Lokina R.B. To bribe or not to bribe: incentives to protect Tanzania's Forests. Resources for the Future Discussion Paper Environment for Development 09-17 2009.
83. Robinson E.J.Z., Kajembe G.C. Changing access to forest resources in Tanzania. Resources for the Future Discussion Paper Environment for Development 09-10 2009.
84. Robinson E.J.Z., Lokina R.B. A spatial-temporal analysis of the impact of access restrictions on forest landscapes and household welfare in Tanzania. Forest Policy Econ. 2011, 13(1):79-85.
85. Rosenberger R.S., Phipps T.T. Correspondence and convergence in benefit transfer accuracy: a meta-analytic review of the literature. Environmental Values Transfer: Issues and Methods 2007, Kluwer Academic Publishers, Dordrecht, The Netherlands. S. Navrud, R. Ready (Eds.).
86. Rosenberger R.S., Stanley T.D. Measurement, generalization, and publication: sources of error in benefit transfer and their management. Ecol. Econ. 2006, 60(2):372-378.
87. Sachs J.D., Baillie J.E.M., Sutherland W.J., Armsworth P.R., Ash N., Beddington J., Blackburn T.M., Collen B., Gardiner B., Gaston K.J., Godfray H.C.J., Green R.E., Harvey P.H., House B., Knapp S., Kümpel N.F., Macdonald D.W., Mace G.M., Mallet J., Matthews A., May R.M., Petchey O., Purvis A., Roe D., Safi K., Turner K., Walpole M., Watson R., Jones K.E. Biodiversity conservation and the millennium development goals. Science 2009, 325(5947):1502-1503.
88. Saito-Jensen M., Nathan I., Treue T. Beyond elite capture? Community-based natural resource management and power in Mohammed Nagar village, Andhra Pradesh, India. Environ. Conserv. 2010, 37(3):327-335.
89. Schaafsma M., Morse-Jones S., Posen P., Swetnam R., Balmford A., Bateman I., Burgess N., Chamshama S.A.O., Fisher B., Green R., Hepelwa A.S., Hernández-Sirvent A., Kajembe Kulindwa K., Lund J.F., Mbwambo L., Meilby H., Ngaga Y.M., Theilade I., Treue T., Vyamana V.G., Turner R.K. Spatially explicit functions for extraction of Non-Timber Forest Products; a case study on charcoal in the Eastern Arc Mountains, Tanzania. Ecol. Econ. 2012, 80:48-62.
90. Schaafsma M. Mapping NTFP collection in Tanzania: a comparison of surveys. CSERGE Working Paper 2012-05 2012, University of East Anglia, UK.
91. Shackleton C.M., Shackleton S.E. Direct use values of savanna resources harvested from communal savannas in the Bushbuckridge lowveld, South Africa. J. Trop. Forest Prod. 2000, 6(1):21-40.
92. Shackleton C.M., Shackleton S.E. Household wealth status and natural resource use in the Kat River valley, South Africa. Ecol. Econ. 2006, 57(2):306-317.
93. Sheil D., Wunder S. The value of tropical forest to local communities: complications, caveats, and cautions. Conserv. Ecol. 2002, 6(2):9.
94. Sommerville M., Milner-Gulland E.J., Rahajaharison M., Jones J.P.G. Impact of a community-based payment for environmental services intervention on forest use in Menabe, Madagascar. Conserv. Biol. 2010, 24(6):1488-1498.
95. Strassburg B., Turner R.K., Fisher B., Schaeffer R., Lovett A. Reducing emissions from deforestation - the 'combined incentives' mechanism and empirical simulations. Global Environ. Chang. 2009, 19(2):265-278.
96. Strassburg B.B.N., Kelly A., Balmford A., Davies R.G., Gibbs H.K., Lovett A., Miles L., Orme C.D.L., Price J., Turner R.K., Rodrigues A.S.L. Global congruence of carbon storage and biodiversity in terrestrial ecosystems. Conserv. Lett. 2010, 3(2):98-105.
97. Sunderlin W.D., Larson A.M., Cronkleton P. Forest tenure rights and REDD+: from inertia to policy solutions. Realising REDD+: National Strategy and Policy Options 2009, CIFOR, Bogor, Indonesia. A. Angelsen (Ed.).
98. Swetnam R.D., Fisher B., Mbilinyi B.P., Munishi P.K., Willcock S., Ricketts T., Mwakalila S., Balmford A., Burgess N.D., Marshall A.R., Lewis S.L. Mapping socio-economic scenarios of land cover change: a GIS method to enable ecosystem service modelling. J. Environ. Manage. 2011, 92(3):563-574.
99. Tinbergen J. On the Theory of Economic Policy 1952, North-Holland, Amsterdam, The Netherlands.
100. Topp-Jørgensen E., Poulsen M.K., Lund J.F., Massao J. Community-based monitoring of natural resource use and forest quality in montane forests and miombo woodlands of Tanzania. Biodivers. Conserv. 2005, 14(11):2653-2677.
101. Turner R.K., Morse-Jones S., Fisher B. Ecosystem valuation; a sequential decision support system and quality assessment issues. Ann. N. Y. Acad. Sci. 2010, 1185(1):79-101.
102. Turpie J.K. The use and value of natural resources of the Rufiji floodplain and delta, Tanzania 2000, REMP Technical Report 17, Dar es Salaam, Tanzania.
103. UNDATA, 2010. http://data.un.org/.
104. UNDP, 2010. International Human Development Indicators. http://hdrstats.undp.org/en/countries/profiles/TZA.html.
105. UNFCCC Issues relating to Reducing Emissions from Deforestation in Developing Countries and Recommendations on Any Further Process, Submissions from Parties 2006, UNFCCC, Bonn, Germany. http://unfccc.int/resource/docs/2006/sbsta/eng/misc05.pdf.
106. URT Action Research into Poverty Impacts of Participatory Forest Management (ARPIP): Case studies from the Eastern Arc Mountains area of Tanzania 2008, Ministry of Natural Resources and Tourism, Forestry and Beekeeping Division, Dar es Salaam, Tanzania.
107. URT National Strategy for Reduced Emissions from Deforestation and Forest Degradation (REDD+) 2010, http://www.reddtz.org/.
108. Vedeld P., Angelsen A., Bojö J., Sjaastad E., Kabugabe Berg G. Forest environmental incomes and the rural poor. Forest Policy Econ. 2007, 9(7):869-879.
109. Veltheim, T., Kijazi, M., 2002. Participatory forest management in the east Usambaras. Technical Paper 61 East Usambara Conservation Area Management Programme, Ministry of Natural Resources and Tourism, Tanzania Forestry and Beekeeping Division and Ministry for Foreign Affairs, Finland Metsähallitus Consulting Oy.
110. Vyamana V.G. Participatory forest management in the Eastern Arc Mountains of Tanzania: who benefits?. Int. For. Rev. 2009, 11(2):239-253.
111. Willcock S., Phillips O.L., Platts P.J., Balmford A., Burgess N.D., Lovett J.C., Ahrends A., Bayliss J., Doggart N., Doody K., Fanning E., Green J., Hall J., Howell K.L., Marchant R., Marshall A.R., Mbilinyi B., Munishi P.K.T., Owen N., Swetnam R.D., Topp-Jorgensen E.J., Lewis S.L. Towards regional, error-bounded landscape carbon storage estimates for data-deficient areas of the world. PLoS ONE 2012, 7(9):e44795.
112. Wiskerke W.T., Dornburg V., Rubanza C.D.K., Malimbwi R.E., Faaij A.P.C. Cost/benefit analysis of biomass energy supply option for rural smallholders in the semi-arid eastern part of Shinyanga Region in Tanzania. Renew. Sust. Energ. Rev. 2010, 14:148-165.
113. World Bank Environmental crisis or sustainable development opportunity? Transforming the Charcoal Sector in Tanzania. A Policy Note. Sustainable Development, Africa Region 2009, World Bank, Washington, DC.
114. Wunder S. Poverty alleviation and tropical forests - what scope for synergies?. World Dev. 2001, 29(11):1817-1833.
115. Wunder S., Engel S., Pagiola S. Taking stock: a comparative analysis of payments for environmental services programs in developed and developing countries. Ecol. Econ. 2008, 65(4):834-852.
116. Zilberman D., Lipper L., McCarthy N. When could payments for environmental services benefit the poor?. Environ. Dev. Econ. 2008, 13(3):255-278.