Non-point sources of nitrogen pollution in the agricultural context are mainly due to the overfertilization of agricultural fields for crop yield improvement. Regardless of the considerable efforts made at various levels to optimize the cultural management practices, the nitrogen surplus in the soil may constitute a high potential for nitrate…
Treated wastewater reuse (TWWR) to irrigate crops or landscapes has an interest in terms of water resources preservation both quantitatively and qualitatively, that is exacerbated by the prospect of global warming and population growth. France has recently adopted a regulation (Decree of August 2, 2010, revised June 2014) which authorizes…
Drip irrigation is considered the best technique to save water in agriculture. However clogging of drippers is the main cause of loss of water efficiency, especially for small farmers involved in a modernization process. This can be caused by physical, chemical or biological factors, individually or combined. These phenomena will…
The current regulation strongly encourages the reduction of pesticide doses and prohibits many products, pushing the development of pesticides with low environmental impact. This requires the development of more complex real-time processing strategies to ensure crop protection and thus maintain sufficient yield. Among these innovative strategies, the development of alternative…
The research thesis takes place in the Berrechid plain in Morocco, in the city of Ouled Zidane. This plain is one of the main cereal production area on a national scale, most of which is conducted in rain fed conditions. Since the 1980s, we have seen the emergence of irrigated…
Deltaic floodplains are among the most agriculturally productive and biodiverse areas on the planet. However, they area also facing a wide range of pressures, from land use changes to modifications in river flows due to climate change and hydropower construction. © Aerial field photo, C. Orieschnig, IRD
There is no translation available. Cécile Hérivaux a soutenu ses travaux de thèse en Validation des Acquis de l’Expérience (VAE) intitulés "Economie de la soutenabilité et protection des eaux souterraines" le 16 décembre 2021 à 14h à Montpellier Supagro, devant le jury composé de : Harold LEVREL, professeur, AgroParisTech, UMR CIRED …
© Source : https://www.serreponcon-tourisme.com/ Abstract : Since the beginning of the 2000s, water allocation policies became central in Europe and France to reach Water Framework Directive goals. Improvements in irrigation efficiency is one of the main policy measure aiming to save billions of cubic meters at the…
The adoption of innovations by farmers is a relatively old research topic but remains relevant, especially in Africa. African farmers adopt relatively few of the innovations proposed by research. Economists have focused their attention mainly on the influence of household characteristics such as household head age, household size or access…
The objective of this thesis is to rely on dissolved gases and in particular the Excess Air - EA calculated from neon-argon-nitrogen gases, to develop new tracers informing about the conditions and modalities of aquifer recharge and more particularly, for karstic systems. EA could give informations about the importance of…
©j.beraud, reuse experimental plot, Saint Martin de Castillon, 2017 As part of the READ'APT project, financed within the Water Agency RMC' call for projects, IRSIC, IRSTEA and the Société du Canal de Provence propose a research project to explore, in a collective exploratory approach, the conditions for the potential…
Extreme climatic events are more important, an intensification of floods and associated damages is thus very likely in the coming decades. To adapt to such phenomena, it is necessary to be able to understand, model and predict them in a variety of catchments. The contribution of groundwater to flood events…
There is no translation available.Hind Ftouhi a soutenu sa thèse de doctorat intiulée « Des jeunes ruraux en quête d’autonomie, de reconnaissance sociale et de construction du territoire - Cas de la plaine du Saïs, Maroc » La thèse a été dirigée par les Professeurs HAMIMAZ Rachid, MAHDI Mohamed et…
There is no translation available.© Photos : Marie Lusson Coupées par les digues et les seuils, polluées par les rejets industriels, urbains et agricoles, désassemblées pour leur eau ou leurs graviers, 42 % des rivières françaises sont en mauvais état écologique et morphologique. La directive européenne de l’eau de…
Agricultural plains with prominent irrigation infrastructure are important for the regional and national economies in the Maghreb region. However, these territories and farmers are vulnerable to environmental and climatic hazards, linked to an "unsustainable" use of natural resources (conditions and means of access to water, soil degradation). It is worthy…
Photo: Measurement of the piezometric level of the deep aquifer in a well, Sebkha Kelbia, Central Tunisia, ©Damien Aube The sebkha Kelbia is a temporary natural lake that occupies a large topographic depression (130 km²) located in the north-east of Kairouan in central Tunisia. It is the main…
Permanent Mare of Tombo, ©Photo : S. Bachir, IRD In SW Niger, close to Niamey, a detailed hydrological survey has been developed for the last 25 years over 10 000 km2 by the international experiments Hapex Sahel and AMMA. Quality and consistency of these long-term observations allowed assessing the…
Abstract : The mutual influences between human activities and natural resources are at the heart of societal debates. The challenges of water management depend on these interdependences differently according to the local situation. In this context, the hydrology research community is investigating the relevance of its models to represent human…
After a trend of decentralisation of large irrigation schemes management, based on surface water, and of an increasing individual and private use of groundwater use in Turkey, there is a current redeployment of the state in irrigation development, through the planning programme “1000 small-dams in 1000 days” over the country.…
This thesis aims to understand what are the effects of the share of information concerning the agents behavior (theirs extraction) on these latter. We want to compare different methods of providing and sharing information and analyze their effects on the extraction. Key words: Information-sharing, Experimental Economics
