A5075153013- Conservation, Biodiversity, and Resource Management
- Ecology and Vegetation Dynamics Studies
- Rangeland Management and Livestock Ecology
- African Botany and Ecology Studies
- Coastal wetland ecosystem dynamics
- Land Use and Ecosystem Services
- Fire effects on ecosystems
- Vietnamese History and Culture Studies
- Environmental Changes in China
- Remote Sensing and Land Use
- Forest ecology and management
- Cambodian History and Society
- Agriculture and Rural Development Research
- Plant Ecology and Soil Science
- Oil Palm Production and Sustainability
- Biological Control of Invasive Species
- Constructed Wetlands for Wastewater Treatment
- Coastal and Marine Management
- Southeast Asian Sociopolitical Studies
- Sustainability and Climate Change Governance
- Transboundary Water Resource Management
- Spatial and Panel Data Analysis
- Cassava research and cyanide
- Plant Ecology and Taxonomy Studies
- Agricultural and Environmental Management
University of Lausanne
2018-2023
École Polytechnique Fédérale de Lausanne
2003-2017
Asian Institute of Technology
2010-2016
ETH Zurich
2013
Instituto de Ciencia de Materiales de Sevilla
2005
National Institute of Advanced Industrial Science and Technology
2005
University Hospital of Geneva
2005
Oak Ridge National Laboratory
2005
Binghamton University
2005
Universidad de Sevilla
2005
Summary The success of large‐scale cattle ranching in African savanna vegetation has often been limited by problems bush encroachment and disease (in particular trypanosomiasis spread tsetse flies). Mkwaja Ranch, occupying an area 462 km 2 on the coast Tanzania, is a recent example large enterprise that failed within environment. It was closed 2000 after 48 years operation. In this paper we describe main types (excluding forest vegetation) relate their patterns distribution to former use...
Within the highly bio-diverse 'Northern Vietnam Lowland Rain Forests Ecoregion' only small, and mostly modified forestlands persist within vast exotic-species plantations. The aim of this study was to elucidate vegetation patterns a secondary hillside rainforest remnant (elevation 120–330 m, 76 ha) as an outcome natural processes, anthropogenic processes linked changing forest values. In tree species various bio-physical parameters (relating soils terrain) were surveyed on forty 20 m × sized...
Despite wetland conversion to intensive rice production Central Thailand remains a center for biodiversity in Southern Asia. Fauna inhabiting fields (many species perform important ecosystem services) are, however, increasingly threatened by pesticide uses. In Ayutthaya and Ang Thong Provinces 40 conventionally 31 organically managed farms were visited investigate how abundance diversity of aquatic fauna relate regimes. the dry wet seasons surveyed plankton, macro-invertebrates, fishes,...
Abstract Acquisition of tandem mass spectra from peptides or other analytes deposited on non‐conductive membranes is inhibited instruments combining matrix‐assisted laser desorption/ionization with time‐of‐flight analyzers (MALDI‐TOF/TOF™) due to a charging effect. A thin layer gold renders the membrane conductive. This allows adequate data acquisition MALDI‐TOF/TOF™ systems. Therefore, this methodology extends capacity molecular scanner concept spectrometry. Copyright © 2005 John Wiley...
Informed from historical case studies of land cover change and development in northern countries, forest transition (FT) theories have a tendency to precast specific conclusions. Considering the so-called FT Thừa Thiên Huế Province tropical Central Vietnam, we investigated 1.) whether such 'FT' indeed reflects resurgence genuine forest, 2.) changes can be explained through conventional 'pathways' FT, 3.) which ways may or not portend 'sustainable development'. Using satellite imagery...
Nowadays, pesticides are used pervasively in Asian rice production areas. Nonetheless, information is scarce regarding chemicals' application and synergistic toxicity longer-term impacts on paddy ecosystems. In Phranakhon Si Ayutthaya Ang Tong (AT) provinces, 40 conventionally 31 organically managed farms were visited. The farmers provided types levels of used, indices describing pesticide 'toxic exposures' calculated. the dry wet seasons, fields surveyed for soil organic carbon (OC)...
Questions: What factors influence the density, size and growth form of trees in secondary Acacia zanzibarica woodlands on a former humid savanna rangeland? How does tree density relate to variation foliage spines, woody grass biomass? Location: Tropical coastal Tanzania (former Mkwaja Ranch, now Saadani National Park). Methods: We surveyed 97 circular plots (4-m radius) representing gradient from open dense woodland. Within each plot, we measured all estimated biomass spines. Foliage layers...
Vietnam is undergoing a forest transition stage with an overall increase in cover since the 1990s; however, deforestation and degradation of natural forests still occur several areas, especially Central region country. In order to better manage protect forests, predicting probability understanding its associated factors are necessary. present study, we focused on two mountainous districts (Nam Dong A Luoi) as case study. We used Landsat satellite images for identifying changes over period...