Wind erosion is a major phenomenon in the Sahel, and can affect soil fertility. Studies of Sahelian aeolian erosion or erosivity are scarce and have been mainly focused on the Central Sahel. Since February 2020, the number of saltating particles and the horizontal flux of aeolian sediment were monitored in Bambey (Senegal) in combination with […]
EGU 2023 was held this year in Vienna, Austria from April 23-28. iEES Paris was strongly represented with the participation of 9 of our team members.
“Global Deep Soil 2100” is a network bringing together experimenters, modellers and data users on experiments analyzing the warming of all ecosystems. A workshop to deepen the compilation, meta-analysis and modeling of data was organized at Sorbonne University as a hybrid meeting on four continents. It brought together 50 participants and was organized as an […]
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Thanks to its close partnerships with Laotian structures, IRD is providing equipment to the DALaM research centre and to the MouNoy Dev straat-up.
In 2022, IRD is supporting the creation of five new research structures with activities in Laos. These research and training programs have various modes of operation and over a wide range of disciplinary fields (health, ecology, biology, geology, land use planning).
? Carbon Sinks | CNRS Images
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Minerals are widely assumed to protect organic matter (OM) from degradation in the environment, promoting the persistence of carbon in soil and sediments. In this Review, we describe the mechanisms and processes operating at the mineral–organic interface as they relate to OM transformation dynamics.
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J.-L. Janeau, IRD research engineer at iEES Paris (FEST and F2ZC teams), is co-organizer of an EGU21 session.
Soil carbon persistence can be understood through the lens of decomposers as a result of functional complexity derived from the interplay between spatial and temporal variation of molecular diversity and composition. For example, co-location alone can determine whether a molecule is decomposed, with rapid changes in moisture leading to transport of organic matter and constraining the fitness of the microbial community, while greater molecular diversity may increase the metabolic demand of, and thus potentially limit, decomposition.
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In this prospective article, an international consortium coordinated by researchers from the University of Copenhagen examines the prospects for using the “third dimension” of agricultural land, i.e. the possibility, without resorting to new land, of increasing the volume of soil exploited by the root system of crops, thereby increasing the resource base available for agricultural production while minimizing the undesirable externalities frequently associated with current agroecosystems.
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