Know more

Our use of cookies

Cookies are a set of data stored on a user’s device when the user browses a web site. The data is in a file containing an ID number, the name of the server which deposited it and, in some cases, an expiry date. We use cookies to record information about your visit, language of preference, and other parameters on the site in order to optimise your next visit and make the site even more useful to you.

To improve your experience, we use cookies to store certain browsing information and provide secure navigation, and to collect statistics with a view to improve the site’s features. For a complete list of the cookies we use, download “Ghostery”, a free plug-in for browsers which can detect, and, in some cases, block cookies.

Ghostery is available here for free: https://www.ghostery.com/fr/products/

You can also visit the CNIL web site for instructions on how to configure your browser to manage cookie storage on your device.

In the case of third-party advertising cookies, you can also visit the following site: http://www.youronlinechoices.com/fr/controler-ses-cookies/, offered by digital advertising professionals within the European Digital Advertising Alliance (EDAA). From the site, you can deny or accept the cookies used by advertising professionals who are members.

It is also possible to block certain third-party cookies directly via publishers:

Cookie type

Means of blocking

Analytical and performance cookies

Realytics
Google Analytics
Spoteffects
Optimizely

Targeted advertising cookies

DoubleClick
Mediarithmics

The following types of cookies may be used on our websites:

Mandatory cookies

Functional cookies

Social media and advertising cookies

These cookies are needed to ensure the proper functioning of the site and cannot be disabled. They help ensure a secure connection and the basic availability of our website.

These cookies allow us to analyse site use in order to measure and optimise performance. They allow us to store your sign-in information and display the different components of our website in a more coherent way.

These cookies are used by advertising agencies such as Google and by social media sites such as LinkedIn and Facebook. Among other things, they allow pages to be shared on social media, the posting of comments, and the publication (on our site or elsewhere) of ads that reflect your centres of interest.

Our EZPublish content management system (CMS) uses CAS and PHP session cookies and the New Relic cookie for monitoring purposes (IP, response times).

These cookies are deleted at the end of the browsing session (when you log off or close your browser window)

Our EZPublish content management system (CMS) uses the XiTi cookie to measure traffic. Our service provider is AT Internet. This company stores data (IPs, date and time of access, length of the visit and pages viewed) for six months.

Our EZPublish content management system (CMS) does not use this type of cookie.

For more information about the cookies we use, contact INRA’s Data Protection Officer by email at cil-dpo@inra.fr or by post at:

INRA
24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

Menu Logo Principal AgroParisTech

Welcome to ECOSYS

UMR ECOSYS - Ecologie fonctionnelle et écotoxicologie des agroécosystèmes

Organic waste recycling service

Transversal axis contributing to the organic waste recycling service

ECOSYS contributes to the optimization of recycling practices of organic waste products (OWPs) applied to valorize the nutrients they contain, stimulate soil biological activity and increase carbon storage in soils, while addressing the reduced negative impacts related to their use (contaminants, pathogens). The approaches developed range from controlled process studies to observations and experiments in open-field conditions. The SOERE-PRO constitutes a key device that is widely shared in the unit and over as experimental support for long-term observations. The return of OWPs to soil is an agronomic practice that influences several other service axes: (1) the biological activity of soils and their structural and functional biodiversity; (2) the environmental quality of agroecosystems and the soil filtering function, since OWPs can be sources of contaminants (organic and mineral contaminants, GHGs, VOCs, dust and particles) or modify the fate of contaminants present in the soil; and (3) the substitution of fertilizers as alternative sources of nitrogen and phosphorus. Finally, optimizing the distribution of OWPs within a regional territory is an excellent example of a problem requiring an integrated territorial assessment.

 

The objectives of this axis were as follows:

  • Take into  account the interconnection of biogeochemical cycles  involving OWPs  to  assess  their use as alternative sources of nutrients for crops, their capacity to promote the carbon storage in soils and to reduce GHG (N2O) and other contaminant gasses (NH3, VOC).
  • Identify the factors that explain the variability of behavior for different OWPs in terms of recycling practices and pedoclimatic conditions.
  • Measure and predict effects on soil properties (structural stability, water balance, biological activity, resistance to telluric plant diseases) and on the transfer and potential impacts of associated contaminants.
  • Conduct global assessments of recycling practices at local (parcel, exploitation) and territorial scales (small agricultural peri-urban regions).

The highlights achievements were as follows:

➢          Actions carried out within contractual projects, such as the insertion of OWPs in cropping systems, taking into account their fertilization effects (ISARD and PROLEG projects); characterization of new OWP such as digestates (DIVA, DIVAGRO); and determination of the potential effects of OWP applications on soil carbon stocks, N2O emissions and nitrate leaching at spatial scale (PROSTOCK project). Some projects have considered the ecosystem service provided by recycling practices (ECOSOM and PROLEG projects) and the dys-services linked to OWP pollutant emissions (CEMABS, Pharma-PRO, Pharma-BOUE projects) as well as the monetarization of externalities (PRO-EXTERN project).

➢          Consolidation and renewal of collaborations within LabEx BASC (SADAPT, Agronomy, Public Economy units), with the implementation of several projects addressing peri-urban agriculture and waste recycling, including other units specialized in waste treatment processes (LBE, IRSTEA-OPAALE in Rennes) and ecological approaches (Metis, LEESU, both FIRE units). In addition, UMT Alter'N and partnerships with technical institutes ensure operational transfer of the results to technical users.

➢          Development of "territorial" approaches integrating the distribution of the sources of OWPs and needs of crop successions according to the types of soils and uses involved. An engineer profile was designed in this context, resulting in the recruitment of an IR (Florent Levavasseur) in 2015.

➢          Assessment of spatial distribution of topsoil organic carbon (SOC) content, cultural operations and crop successions from varied approaches and especially remote sensing (GESSOL PROSTOCK, BASC SOCSENSIT, TOSCA PLEIADES-CO, TOSCA “Théia Cartographie Numérique des Sols” projects).

This axis is managed by Sabine Houot and is mainly driven by the Soil team (46 publications are related to this axis, representing approximately 20% of the articles produced by the team) with implication of all the teams and connections with all other transversal axes. Ten peer-reviewed articles were co-signed by at least two of the unit's teams.

Le service Valorisation des déchets dans le réseau des services traités par ECOSYS

janvier 2015
Read more

Animation et partenariats - Service Valorisation des déchets

janvier 2015
Read more