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Dive into the research topics where Guillaume Lestrelin is active.

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Featured researches published by Guillaume Lestrelin.


Journal of Contemporary Asia | 2012

Territorialising sustainable development: The politics of land-use planning in Laos

Guillaume Lestrelin; Jean-Christophe Castella; Jeremy Bourgoin

Abstract Since the emergence of the sustainable development paradigm in the late 1980s, land-use planning has become a key arena for political debates over society-environment interactions and, in practice, an important means for territorialisation projects. The paper reviews the main planning approaches that have been employed over the past three decades in the Lao Peoples Democratic Republic, a country that has long been viewed as a valuable policy testing ground for the proponents of sustainable development. It highlights three concurrent territorialisation projects that have shaped the history of land-use planning and have fuelled tensions between central and subnational governments and local actors, national and foreign institutions, and land suitability and sustainability approaches. The paper argues that the latter tensions reflect an important dynamism and reactivity in the planning arena. It concludes that the capacity of land-use planners to adapt to specific contexts and evolving socio-environmental challenges should be harnessed in order to reconcile conflicting approaches to planning and, perhaps, to achieve sustainable development.


Landscape Ecology | 2014

A model of the science-practice-policy interface in participatory land-use planning: lessons from Laos

Jean-Christophe Castella; Jeremy Bourgoin; Guillaume Lestrelin; Bounthanom Bouahom

An essential task of participatory action-research is to help close the policy implementation gap that leads to large discrepancies between policy frameworks and local practices. Too often, official regulations, laws and decrees fail to translate into concrete action on the ground. Loose institutional linkages between research, extension and local communities are often blamed as the main culprits for this gap. In turn, many stakeholders call for enhanced participation as a way to bring together scientists, development practitioners and local communities in negotiating competing claims for natural resources and designing realistic pathways towards sustainable development. Despite such general consensus about the value of participation, the latter cannot be decreed nor imposed. Participation is an emerging quality of collective-action and social-learning processes. In this paper, the experience of participatory land-use planning conducted in Laos serves to illustrate a model of the science–practice–policy interface that was developed to facilitate the interactions between three groups of stakeholders, i.e. scientists, planners and villagers, in designing future landscapes. Emphasis was put on developing an approach that is generic and adaptive enough to be applied nationally while engaging local communities in context-sensitive negotiations. The set of tools and methods developed through action-research contributed to enhanced communication and participation from initial consultation and cooperation stages towards collective decision-making and action. Both the activity of landscape design and the resulting patterns can be improved by incorporating landscape science in strategic multi-stakeholder negotiations.


Environmental Management | 2015

Vietnam's forest transition in retrospect: demonstrating weaknesses in business-as-usual scenarios for REDD.

Jeppe Ankersen; Kenneth Grogan; Ole Mertz; Rasmus Fensholt; Jean-Christophe Castella; Guillaume Lestrelin; Dinh Tien Nguyen; Finn Danielsen; Søren Brofeldt; Kjeld Rasmussen

One of the prerequisites of the REDD+ mechanism is to effectively predict business-as-usual (BAU) scenarios for change in forest cover. This would enable estimation of how much carbon emission a project could potentially prevent and thus how much carbon credit should be rewarded. However, different factors like forest degradation and the lack of linearity in forest cover transitions challenge the accuracy of such scenarios. Here we predict and validate such BAU scenarios retrospectively based on forest cover changes at village and district level in North Central Vietnam. With the government’s efforts to increase the forest cover, land use policies led to gradual abandonment of shifting cultivation since the 1990s. We analyzed Landsat images from 1973, 1989, 1998, 2000, and 2011 and found that the policies in the areas studied did lead to increased forest cover after a long period of decline, but that this increase could mainly be attributed to an increase in open forest and shrub areas. We compared Landsat classifications with participatory maps of land cover/use in 1998 and 2012 that indicated more forest degradation than was captured by the Landsat analysis. The BAU scenarios were heavily dependent on which years were chosen for the reference period. This suggests that hypothetical REDD+ activities in the past, when based on the remote sensing data available at that time, would have been unable to correctly estimate changes in carbon stocks and thus produce relevant BAU scenarios.


Outlook on Agriculture | 2012

To Till or not to Till? The Diffusion of Conservation Agriculture in Xieng Khouang Province, Lao PDR: Opportunities and Constraints

Guillaume Lestrelin; K. Nanthavong; Etienne Jobard; Anousith Keophoxay; Pascal Lienhard; Chanxay Khambanseuang; Jean-Christophe Castella

Over the past decade, efforts have been made to promote conservation agriculture as an ecologically sound alternative to tillage-based agriculture in the Lao Peoples Democratic Republic (PDR). This paper assesses some of the outcomes of a five-year research project aimed at developing sustainable no-till cropping and pasture systems and promoting their adoption by smallholders in Xieng Khouang province. Based on extensive household surveys in 20 villages, it highlights key environmental and socioeconomic factors influencing the adoption and diffusion of conservation agriculture. Finally, it provides policy recommendations to facilitate agricultural innovation and provide greater incentives for farmers to shift towards more sustainable farming practices.


Journal of Land Use Science | 2017

Uncertainty in establishing forest reference levels and predicting future forest-based carbon stocks for REDD+

Ole Mertz; Kenneth Grogan; Dirk Pflugmacher; Guillaume Lestrelin; Jean-Christophe Castella; Thoumthone Vongvisouk; Cornelia Hett; Rasmus Fensholt; Zhanli Sun; Nicholas J. Berry; Daniel Müller

ABSTRACT Forest reference levels (FRLs) provide a benchmark for assessing reduced emissions from deforestation and forest degradation (REDD+), and they are central to demonstrate additionality of REDD+. Attaining realistic FRLs, however, is challenging, especially in complex mosaic landscapes. We established FRLs in northern Laos for different reference periods and tested them against actual carbon stock changes. Annual time series of Landsat satellite images were used to capture the subtle changes in carbon stocks in complex landscapes characterized by shifting cultivation. We found that FRLs differ considerably depending on the reference period chosen. Abrupt land-use changes occurred when hybrid maize replaced traditional shifting cultivation and forests, and this invalidated carbon stock trends that would have been predicted had the FRL been projected into the future. We conclude that demonstrating additionality of REDD+ in fast developing areas is difficult and that payment systems rewarding potential emission reductions against hypothetical extrapolation of FRLs are unlikely to be a cost-effective strategy.


Human Ecology | 2013

Effects of landscape segregation on livelihood vulnerability: moving from extensive shifting cultivation to rotational agriculture and natural forests in northern Laos

Jean-Christophe Castella; Guillaume Lestrelin; Cornelia Hett; Jeremy Bourgoin; Yulia Rahma Fitriana; Andreas Heinimann; Jean-Laurent Pfund


Geografisk Tidsskrift-danish Journal of Geography | 2012

The forgotten D: challenges of addressing forest degradation in complex mosaic landscapes under REDD+

Ole Mertz; Daniel Mueller; Thomas Sikor; Cornelia Hett; Andreas Heinimann; Jean-Christophe Castella; Guillaume Lestrelin; Casey M. Ryan; David S. Reay; Dietrich Schmidt-Vogt; Finn Danielsen; Ida Theilade; Meine van Noordwijk; Louis Verchot; Neil D. Burgess; Nicholas J. Berry; Thu Thuy Pham; Peter Messerli; Jianchu Xu; Rasmus Fensholt; Patrick Hostert; Dirk Pflugmacher; Thilde Bech Bruun; Andreas de Neergaard; Klaus Dons; Sonya Dewi; Ervan Rutishauser; Zhanli Sun


Landscape and Urban Planning | 2012

Toward a land zoning negotiation support platform: "Tips and tricks" for participatory land use planning in Laos

Jeremy Bourgoin; Jean-Christophe Castella; David Pullar; Guillaume Lestrelin; Bounthanom Bouahom


Ecosystem services | 2013

Payments for ecosystem services in Vietnam: Market-based incentives or state control of resources?

Diana Suhardiman; Dennis Wichelns; Guillaume Lestrelin; Chu Thai Hoanh


Renewable Agriculture and Food Systems | 2012

Conservation agriculture in Laos: Diffusion and determinants for adoption of direct seeding mulch-based cropping systems in smallholder agriculture

Guillaume Lestrelin; Hoa Tran Quoc; Frédéric Jullien; Bounmy Rattanatray; Chanthasone Khamxaykhay; Florent Tivet

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Jean-Christophe Castella

International Rice Research Institute

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Jean-Christophe Castella

International Rice Research Institute

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Ole Mertz

University of Copenhagen

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Daniel David

University of La Réunion

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Florent Tivet

Centre de coopération internationale en recherche agronomique pour le développement

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Hoa Tran Quoc

Centre de coopération internationale en recherche agronomique pour le développement

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