Louis Reymondin

Louis Reymondin
Consultative Group on International Agricultural Research | CGIAR · International Center for Tropical Agriculture (CIAT)

4th year PhD. Scholar

About

32
Publications
12,706
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
496
Citations

Publications

Publications (32)
Preprint
Full-text available
Quantifying the timing of vegetation growth, particularly coffee plant flowering, is vital for estimating yield in advance. While satellite-based vegetation indices are effective in mapping crop growth and have a strong correlation with coffee yield, the potential contribution of plant conditions alongside climate factors in predicting coffee flowe...
Article
Full-text available
Satellite remote sensing (RS) and machine learning can be combined to develop methods for measuring the impacts of climate change on biomass and agricultural systems. From 2015 to 2023, we applied this approach in a critical earth observation-based evaluation of the Irrigation and Water Resources Management component of the Millennium Challenge Cor...
Preprint
Full-text available
Index-based insurance (IBI) is an effective tool for managing climate risk and promoting sustainable development. It provides payouts based on a measurable index. Remote sensing data obtained from satellites, planes, UAVs, or drones can be used to design index-based insurance products. However, the extent to which satellite-based data has been used...
Article
Full-text available
Traditional wet markets are the main source of fresh food and the largest source of daily nutrient intake for citizens of Hanoi. Nevertheless, due to the lack of traceability and sales registration systems, food flows within these markets remain largely invisible. This makes it challenging to assess the impact of shocks, such as pandemics, on these...
Article
Full-text available
Systematic tools and approaches for measuring climate change adaptation at multiple scales of spatial resolution are lacking, limiting measurement of progress toward the adaptation goals of the Paris Agreement. In particular, there is a lack of adaptation measurement or tracking systems that are coherent (measuring adaptation itself), comparable (a...
Article
Full-text available
Unlabelled: As the COVID-19 pandemic unfolded, questions arose as to whether the pandemic would amplify or pacify tropical deforestation. Early reports warned of increased deforestation rates; however, these studies were limited to a few months in 2020 or to selected regions. To better understand how the pandemic influenced tropical deforestation...
Article
Full-text available
The cropland in the farming-pastoral ecotone of Northern China is highly unstable owing to environmental restoration projects, poor soil fertility, poverty, and rural labor loss, and it is characterized by a large number of fallow fields. Mapping fallow fields in a farming-pastoral ecotone can help in evaluating the impact of complex cropland lands...
Article
Full-text available
While forest degradation rates and extent exceed deforestation in the Brazilian Amazon, less attention is given to the factors controlling its spatial distribution. No quantified correlation exists between changes of forest structure due to anthropogenic disturbances and dynamics of land use and cover change occurring at broader spatial levels. Thi...
Article
Full-text available
Accurate crop type maps play an important role in food security due to their widespread applicability. Optical time series data (TSD) have proven to be significant for crop type mapping. However, filling in missing information due to clouds in optical imagery is always needed, which will increase the workload and the risk of error transmission, esp...
Article
Full-text available
The coffee sector is working towards sector-wide commitments for sustainable production. Yet, knowledge of where coffee is cultivated and its environmental impact remains limited, in part due to the challenges of mapping coffee using satellite remote sensing. We recognize the urgency to capitalize on recent technological advances to improve remote...
Article
Full-text available
Degraded tropical forests dominate agricultural frontiers and their management is becoming an urgent priority. This calls for a better understanding of the different forest cover states and cost-efficient techniques to quantify the impact of degradation on forest structure. Canopy texture analyses based on Very High Spatial Resolution (VHSR) optical i...
Article
Full-text available
Forest conservation in human-dominated tropical landscapes ensures provision of major ecosystem services. However, conservation goals are threatened by growing demands for agricultural products. As the expansion of agricultural frontiers continues to exert increasing pressure on forest cover, it is crucial to provide indicators on forest vulnerabil...
Poster
Full-text available
This poster assessed the impact of different input features on the performance of a convolutional recurrent neural network applied for land cover classification across the Brazilian Amazon.
Book
Full-text available
The user manual describes the installation process of the Terra-i system as well as the necessary tools for its functioning. Input data acquisition procedures used by Terra-i are also described. Finally, it shows the insights, methods and formats involved in each step of the pre-processing stage. Description: Terra-i is a tool that detects vegetal...
Article
Full-text available
Though often perceived as an environmentally-risky practice, biological control of invasive species can restore crop yields, ease land pressure and thus contribute to forest conservation. Here, we show how biological control against the mealybug Phenacoccus manihoti (Hemiptera) slows deforestation across Southeast Asia. In Thailand, this newly-arri...
Preprint
Full-text available
Biological control of invasive species can restore crop yields, and thus ease land pressure and contribute to forest conservation. In this study, we show how biological control against the mealybug Phenacoccus manihoti (Hemiptera) slowed deforestation across Southeast Asia. In Thailand, the newly-arrived mealybug caused an 18% decline in cassava yi...
Article
Full-text available
A growing body of evidence suggests that criminal activities associated with drug trafficking networks are a progressively important driver of forest loss in Central America. However, the scale at which drug trafficking represents a driver of forest loss is not presently known. We estimated the degree to which narcotics trafficking may contribute t...
Article
Full-text available
This study analyzes the past, current and potential future deforestation resulting from the improvement of the road segment between San Juan Nepomuceno and the 6th route (PR-L1080) in Southeastern Paraguay. For the purpose of the analysis, the study used satellite images to detect deviations from the usual pattern of vegetation and thus identify an...
Article
Full-text available
Using six years of remote sensing data, we estimated land and forest degradation inside 1788 protected areas across 19 countries in Latin America. From 2004–2009, the rate of land and forest degradation increased by 250% inside the protected areas, and the land and forest degradation totaled 1,097,618 hectares. Of the protected areas in our dataset...
Technical Report
Full-text available
Habitat conversion is contributing to widespread loss of biodiversity and other critical ecosystem services, yet, in many parts of the world, the scale and pattern of habitat loss goes unmonitored. The main goal of this study is to provide tools that will allow the analysis of the impact of largescale road infrastructure projects on natural habitat...
Technical Report
Full-text available
The main goal of this report is to provide a brief summary of land-use change in Amazonia within the focus countries of Bolivia, Brazil, Colombia, Ecuador and Peru. This report will mainly focus on the analysis and discussion of land-use change status and trends since 1970’s, a period when considerable changes started to be evident. Analyses were s...
Method
Full-text available
Terra-i provides data about vegetation change (gain or loss). Secondary data (i.e. spatial distribution of natural coverage, forest plantations, crop areas, among others) must be used to get more proximate results about which sort of vegetation changed or which land-use activity could be associated with the change.
Poster
Full-text available
This research aimed to assess the land use change impact caused by development of T rans Chaco Highway in the Dry Chaco Ecoregion in Paraguay. We used remote sensing and neural network to detect deforestation patterns and trends We found that highest deforestation occurred as consequence of natural ecosystems conversion to agriculture and livestock...
Presentation
Full-text available
This project presents a habitat change monitoring methodology that can be used to identify environmental impacts of road construction, and support improved design of future projects that would minimize negative environmental impacts. The project has also helped understand the nature of environmental impacts of road infrastructure projects in distin...
Poster
Full-text available
The goal of this research was to assess the land use change impact of highways development in five LA countries Brazil, Peru, Panama, Bolivia and Paraguay. We used remote sensing and neural network techniques to detect deforestation patterns and trends. We found that highest impact inside the buffer area between 0 to 10 km in each road Furthermore,...
Presentation
Full-text available
Terra-i detects land-cover changes resulting from human activities in near real-time, producing updates every 16 days.Currently it works for the whole of Latin America and the tropics. Terra-i is a collaboration between CIAT, based in Colombia, FTA ,TNC, the School of Business and Engineering (HEIG-VD, based in Switzerland) and King’s College Londo...
Technical Report
Full-text available
El programa DAPA del Centro Internacional de Agricultura Tropical (CIAT), liderado por el doctor Andy Jarvis, con colaboración y patrocinio de The Nature Conservancy (TNC), ejecuta el proyecto “Terra-i: An eye on habitat change”, cuyo eje temático principal consiste en la detección de cambios en el hábitat en América Latina usando redes neuronales...
Article
Full-text available
The Inter-American Biodiversity Information Network (IABIN) has the mandate of providing a networking information infrastructure as well as primary biodiversity data on a number of topics in order to improve decision-making, particularly for issues at the interface of human development and biodiversity conservation. Attempts to correct geographic e...

Network

Cited By