Workshop
Sensors capable of accurately measuring water level exist on the market, but they are generally expensive, fragile and ill-suited to the aggressive conditions encountered in rivers, particularly in the inter-tropical zone. A self-contained, float-controlled water level gauge based on visible laser Time-of-Flight (ToF) technology, designed as an integrated device for automatically measuring and recording water […]
Articles
Hydrological and hydrogeochemical functioning of rivers depends on the relationship between climatic variability, land use and land cover change (LULCC), and population dynamics. However, there is a scientific gap on this relationship in the humid tropical zone of Central Africa. This study, led by David Eric Komba, aims to fill this gap by examining the […]
Articles
In this paper Dr Pierret and colleagues present the design, construction and performance of a self-contained float-controlled water level gauge for monitoring water levels in streams and small rivers. This device is inexpensive (cost of about EUR 220), easy to build (no electronics skills or specialized tools required; assembled in a few hours) and straightforward […]
Articles
In semi-arid areas, intermittent streams are often equipped with small reservoirs to store water for irrigation and/or groundwater recharge, and to capture sediments lost through erosion. These reservoirs must be periodically desilted to maintain their storage capacity. While bottom sediments are generally considered waste, their reuse in agricultural fields is a centuries-old practice in India. […]
Articles
Riparian grass buffers reduce the velocity of water flowing over the soil surface during storms, capturing surface runoff (SR) and trapping soil particles eroded from cultivated slopes. Rarely quantified under steep slope conditions (>45 %), this phenomenon probably occurs in many mountain agroecosystems in the humid tropics. In Southeast Asia, teak plantations are often established on […]
Events
The Sustainable Mountain Agroecosystems Research and Training (SMART) station was inaugurated on Tuesday November 19, in the presence of the Vice-Ministry of Agriculture and Forestry Dr. Chanthakhone BOUALAPHANE, Her Excellency the Ambassador of France in Lao PDR Ms. Siv-Leng CHHUOR, and the Vice-Governor of the Luang Prabang Province Ms. Siliphone SOUPHUNTHONG. The SMART station is […]
Events
Do Anh Huy defended his Master’s thesis on September 18, dealing with the “Application of remote sensing for land use and wetlands mapping in Laos”, performed within the DinBuam ANR project and supervised by Alexandre Bouvet (CESBIO), Olivier Ribolzi (GET) and Pham Duc Binh (USTH), hosted at CESBIO and funded by the AST Zone Critique […]
Events
On June 25 and 26, the IRD 2024 LMI Days were held in Marseille, focusing on South and Southeast Asia on the topic “Water as a common good: towards an integrated vision and sustainable solutions”. Inpeng Saveng (left in photo), PhD student at GET/UT3, presented her thesis work entitled “Headwater wetlands as a determinant of […]
Articles
Little is known about the contribution of villages to the fecal contamination of surface water in tropical rural areas. This study, published in the journal Environmental Science & Technology, documents E. coli and stanol concentration levels in surface runoff, and tracks the origin of the fecal contamination during flood events.