A5018574280- Remote Sensing in Agriculture
- Remote Sensing and LiDAR Applications
- Forest ecology and management
- Ecology and Vegetation Dynamics Studies
- Fire effects on ecosystems
- Plant Water Relations and Carbon Dynamics
- Leaf Properties and Growth Measurement
- Forest Management and Policy
- Land Use and Ecosystem Services
- Conservation, Biodiversity, and Resource Management
- Remote Sensing and Land Use
- Species Distribution and Climate Change
- Rangeland and Wildlife Management
- Botany and Plant Ecology Studies
- Marine and fisheries research
- Plant and animal studies
- Soil Geostatistics and Mapping
- Remote-Sensing Image Classification
- Agronomic Practices and Intercropping Systems
- Plant responses to elevated CO2
- Oil Palm Production and Sustainability
- Climate variability and models
- Forest Ecology and Biodiversity Studies
- Advanced Optical Sensing Technologies
- Plant responses to water stress
Food and Agriculture Organization of the United Nations
2012-2024
Economical and Social Research Centre
2021
KU Leuven
2002-2010
Research Institute for Nature and Forest
2004-2005
Summary 1. Many forests experience periodic, large‐scale disturbances, such as hurricanes and cyclones, which open the forest canopy, causing dramatic changes in understorey light conditions seedling densities. Thus, hurricane‐impacted forests, large variations abiotic biotic likely shape dynamics, turn will contribute to patterns of recovery. 2. We monitored 13 836 seedlings 82 tree shrub species over 10 years following Hurricane Georges 1998 a subtropical, montane Puerto Rico. quantified...
The achievement of international goals and national commitments related to forest conservation management, climate change, sustainable development requires credible, accurate, reliable monitoring stocks changes in biomass carbon. Most prominently, the Paris Agreement on Climate Change United Nations’ Sustainable Development Goals particular require data monitor progress. Unprecedented opportunities provide are created by a series upcoming space-based missions, many which open targeted at...
Summary 1. We simulated two key components of severe hurricane disturbance, canopy openness and detritus deposition, to determine the independent interactive effects these on woody plant recruitment forest structure. 2. increased by trimming branches added or subtracted in a factorial design. Plant responses were measured during 4‐year study, which followed at least 1 year pre‐manipulation monitoring. 3. The physical conditions deposition our experiment resembled Hurricane Hugo, category 4...
We evaluated several optical methods for in situ estimation of leaf area index (LAI) a Belgian Scots pine (Pinus sylvestris L.) stand. The results obtained were compared with LAI determined from allometric relationships established the same found high correlations between branch cross-sectional area, diameter at breast height (DBH) and basal as dependent variables, mass, needle crown projection independent variables. then estimated by allometry three (LAI-2000, TRAC digital hemispherical...
Summary The transition from seed to established seedling ( STS ) represents a major bottleneck in plant demography with implications for community dynamics and the maintenance of species diversity. relative strength limitation versus establishment can reveal life‐history trade‐offs that contribute If dominates, chance arrival open sites may play key role maintaining however, abundances depend more on tolerance environmental biotic conditions during (i.e. species‐specific regeneration niche)....
Abstract For monitoring and reporting forest carbon stocks fluxes, many countries in the tropics subtropics rely on default values of aboveground biomass (AGB) from Intergovernmental Panel Climate Change (IPCC) guidelines for National Greenhouse Gas (GHG) Inventories. Default IPCC AGB originated 2006, are relatively crude estimates average per continent ecological zone. The 2006 were based limited plot data available at time, methods their derivation not fully clear, no distinction between...
A third of the world’s ecosystems are considered degraded, and there is an urgent need for protection restoration to make planet healthier. The Sustainable Development Goals (SDGs) target 15.3 aims at protecting restoring terrestrial ecosystem achieve a land degradation-neutral world by 2030. Land through inclusive productive growth indispensable promote sustainable development fostering climate change-resistant, poverty-alleviating, environmentally protective economic growth. SDG Indicator...
This research was undertaken to study the influence of sampling design and laser beam density ground-based light detection ranging (lidar) measurements forests on quality collected datasets in terms shadowing. Virtual forest stands generated by stochastic L-systems as tree descriptors are used a basis depending frame requirements. The dynamic plant modeler nursery natFX (Bionatics, CIRAD, Montpellier, France) simulate deciduous three species (Fagus sylvatica L., Platanus acerifolia (Ait.)...
Studies simultaneously evaluating the importance of safe-site and seed limitation for plant establishment are rare, particularly in human-modified landscapes. We used spatially explicit neighborhood models together with data from 10 0.5-ha mapped census plots a fragmented landscape spanning 1000 km2 to (1) evaluate relative production, dispersal, recruitment understory herb Heliconia acuminata; (2) determine how these processes differ between fragments continuous forests. Our analyses...
Human-impacted forests are increasing in extent due to widespread regrowth of secondary on abandoned lands. The degree and speed recovery from human disturbance these will determine their value terms biodiversity conservation ecosystem function. In areas subject periodic, severe natural disturbances, such as hurricanes, it has been hypothesized that may interact either erase or preserve land use legacies. To increase understanding how interactions between influence forest regeneration...
Abstract. In this study, we quantified the predictive accuracy loss involved with omitting photosynthetic capacity variation for a Scots pine (Pinus sylvestris L.) stand in Flanders, Belgium. Over course of one phenological year, measured maximum carboxylation at 25 °C (Vm25), electron transport (Jm25), and leaf area index (LAI) different-aged needle cohorts upper lower canopy. We used these measurements as input process-based multi-layer canopy model objective to quantify difference yearly...
After several years of REDD+ (reducing emissions from deforestation and forest degradation in developing countries, the role conservation, sustainable management forests, enhancement carbon stocks countries) readiness, countries are starting to move toward implementation accessing results-based payments (RBPs). Currently various parallel processes for RBPs exist, including project jurisdictional—approaches that often operate under a nascent national framework. This review is structured...
Advances in close-range and remote sensing technologies drive innovations forest resource assessments monitoring at varying scales. Data acquired with airborne spaceborne platforms provide us higher spatial resolution, more frequent coverage increased spectral information. Recent developments ground-based sensors have advanced three dimensional (3D) measurements, low-cost permanent systems community-based of forests. The REDD+ mechanism has moved the community advancing developing geospatial...
On the basis of current negotiations under United Nations Framework Convention on Climate Change, REDD+ (reducing emissions from deforestation and forest degradation role conservation, sustainable management forests enhancement carbon stocks in developing countries) is to become a mechanism that mobilizes financial resources countries fund climate change mitigation activities. To achieve this goal, it essential appropriate infrastructure be established support such activities, shape common...
The influx of nearly a million refugees from Myanmar’s Rakhine state to Cox’s Bazar, Bangladesh, in August 2017 put significant pressure on the regional landscape leading land degradation due biomass removal provide shelter and fuel energy posed critical challenges for both host displaced population. This article emphasizes geospatial applications at different stages addressing Bazar. A wide range data methods were used delineate tenure, estimate wood demand supply, assess degradation,...