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Dive into the research topics where S.M. Hess is active.

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Featured researches published by S.M. Hess.


PLOS ONE | 2012

Measuring the impacts of community-based grasslands management in Mongolia's Gobi.

Craig Leisher; S.M. Hess; Timothy M. Boucher; Pieter van Beukering; M. Sanjayan

We assessed a donor-funded grassland management project designed to create both conservation and livelihood benefits in the rangelands of Mongolias Gobi desert. The project ran from 1995 to 2006, and we used remote sensing Normalized Differential Vegetation Index data from 1982 to 2009 to compare project grazing sites to matched control sites before and after the projects implementation. We found that the productivity of project grazing sites was on average within 1% of control sites for the 20 years before the project but generated 11% more biomass on average than the control areas from 2000 to 2009. To better understand the benefits of the improved grasslands to local people, we conducted 280 household interviews, 8 focus group discussions, and 31 key informant interviews across 6 districts. We found a 12% greater median annual income as well as a range of other socioeconomic benefits for project households compared to control households in the same areas. Overall, the project generated measurable benefits to both nature and people. The key factors underlying project achievements that may be replicable by other conservation projects include the community-driven approach of the project, knowledge exchanges within and between communities inside and outside the country, a project-supported local community organizer in each district, and strong community leadership.


Nature's wealth: the economics of ecosystem services and poverty | 2013

Greening the charcoal chain in Tanzania

P.J.H. van Beukering; S.M. Hess; G. Kahyarara; E.E. Massey; S. Di Prima; V.G. Makundi; K. de Leeuw; P.J.H. Beukering; E. Papyrakis; J.A. Bouma; Roy Brouwer

With a population of 34 million and an extremely high reliance on charcoal, Tanzania is a classic example of the social and environmental risks faced by many developing countries. About 85% of the total urban population uses charcoal for household cooking and energy provision for small and medium enterprises (Sawe 2004). In 1992 the total amount of charcoal consumed nationwide was estimated to be about 1.2 million tons (Sawe 2004). In 2002, the charcoal business generated revenues of more than 200 billion TShs (US


Nature's wealth: the economics of ecosystem services and poverty | 2013

Double dividends of additional water charges in South Africa

J. H. van Heerden; R. van Tol; R. Gerlagh; James Nelson Blignaut; S.M. Hess; Mark Horridge; Margaret Mabugu; Ramos Mabugu; M. de Wit; T. Letsoalo; P.J.H. van Beukering; E. Papyrakis; J.A. Bouma; Roy Brouwer

200 million), with more than 70 000 people from rural and urban areas employed in the industry (TaTEDO 2002b). Dar es Salaam, Tanzania’s largest city, accounts for more than 50% of all charcoal consumed in the country. The charcoal sector is far from sustainable. The forest resources that the industry is relying on are disappearing rapidly and the productivity of the sector has not seen any improvement either. The charcoal sector in Tanzania is operating economically, socially and environmentally in a suboptimal manner. However, solutions that safeguard the charcoal sector’s future are not straightforward.


Global Environmental Change-human and Policy Dimensions | 2014

The importance of local forest benefits: Economic valuation of Non-Timber Forest Products in the Eastern Arc Mountains in Tanzania

Marije Schaafsma; Sian Morse-Jones; Paulette Posen; Ruth D. Swetnam; Andrew Balmford; Ian J. Bateman; Neil D. Burgess; S.A.O. Chamshama; Brendan Fisher; T. Freeman; V. Geofrey; Rhys E. Green; A.S. Hepelwa; A. Hernández-Sirvent; S.M. Hess; G. C. Kajembe; G. Kayharara; M. Kilonzo; Kassim Kulindwa; Jens Friis Lund; Seif Madoffe; L. Mbwambo; H. Meilby; Yonika M. Ngaga; I. Theilade; Thorsten Treue; P.J.H. van Beukering; V.G. Vyamana; Rk Turner

The purpose of this chapter is to show how double dividends could be obtained from using market instruments to tax water use in a developing country. The double dividends are namely environmental (water conservation) on the one hand, and poverty reduction dividends on the other. We apply a water tax on selected industries in South Africa to reduce demand for water, and then transfer the revenue from this tax to the poor to achieve reduction in absolute levels of poverty. South Africa is classified as a semi-arid country. Precipitation has been fluctuating over the years with an average of 500 mm per annum, well below the world average of about 860 mm (DWAF 2002). The total flow of all the rivers in the country combined amounts to approximately 49 200 million m³ per year, while the National Water Resource Strategy estimated the total water requirement for the year 2000 at 13 280 million m3 per year, excluding environmental requirements. In addition, South Africa is poorly endowed in groundwater as most of the country is underlain by hard rock formations that do not contain any major groundwater aquifers (DWAF 2002). While currently only about 24% of rural people have access to water on site, additional sources of water supply are environmentally, financially and politically hard to develop. At the same time, unemployment in rural areas of South Africa is extremely high, which results in severe poverty conditions in these areas.


Marine Policy | 2012

Measuring the benefits and costs of community education and outreach in marine protected areas

Craig Leisher; Sangeeta Mangubhai; S.M. Hess; Hesti Widodo; Tri Soekirman; Salomina Tjoe; Stevanus Wawiyai; S. Neil Larsen; Lukas Rumetna; A. Halim; M. Sanjayan


IVM Report | 2007

Optimization of the charcoal chain in Tanzania

P.J.H. van Beukering; G. Kahyarara; E.E. Massey; S. Di Prima; S.M. Hess; V. Geofrey


Diversity | 2013

Land and forest degradation inside protected areas in Latin America

Craig Leisher; Jerome Touval; S.M. Hess; Timothy M. Boucher; Louis Reymondin


Nature Materials | 2009

Keeping the Amazon forests standing: a matter of values

P.A. Verweij; M.A. Schouten; P.J.H. van Beukering; J. Triana; K. van der Leeuw; S.M. Hess


PREM Policy Brief | 2007

Chained to Charcoal: The market for forest fuels in Tanzania

P.J.H. van Beukering; G. Kahyarara; E.E. Massey; S. Di Prima; S.M. Hess; V. Geofrey


Nature's Wealth | 2013

Greening the chorcoal chain

P.J.H. van Beukering; S.M. Hess; E.E. Massey; S. Di Prima; V.G. Makundi; K. van der Leeuw; G. Kahyarara

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E.E. Massey

VU University Amsterdam

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E. Papyrakis

University of St Andrews

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Roy Brouwer

University of Waterloo

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J.A. Bouma

Netherlands Environmental Assessment Agency

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M. Sanjayan

The Nature Conservancy

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