Know more

About cookies

What is a "cookie"?

A "cookie" is a piece of information, usually small and identified by a name, which may be sent to your browser by a website you are visiting. Your web browser will store it for a period of time, and send it back to the web server each time you log on again.

Different types of cookies are placed on the sites:

  • Cookies strictly necessary for the proper functioning of the site
  • Cookies deposited by third party sites to improve the interactivity of the site, to collect statistics

Learn more about cookies and how they work

The different types of cookies used on this site

Cookies strictly necessary for the site to function

These cookies allow the main services of the site to function optimally. You can technically block them using your browser settings but your experience on the site may be degraded.

Furthermore, you have the possibility of opposing the use of audience measurement tracers strictly necessary for the functioning and current administration of the website in the cookie management window accessible via the link located in the footer of the site.

Technical cookies

Name of the cookie


Shelf life

CAS and PHP session cookies

Login credentials, session security



Saving your cookie consent choices

12 months

Audience measurement cookies (AT Internet)

Name of the cookie


Shelf life


Trace the visitor's route in order to establish visit statistics.

13 months


Store the anonymous ID of the visitor who starts the first time he visits the site

13 months


Identify the numbers (unique identifiers of a site) seen by the visitor and store the visitor's identifiers.

13 months

About the AT Internet audience measurement tool :

AT Internet's audience measurement tool Analytics is deployed on this site in order to obtain information on visitors' navigation and to improve its use.

The French data protection authority (CNIL) has granted an exemption to AT Internet's Web Analytics cookie. This tool is thus exempt from the collection of the Internet user's consent with regard to the deposit of analytics cookies. However, you can refuse the deposit of these cookies via the cookie management panel.

Good to know:

  • The data collected are not cross-checked with other processing operations
  • The deposited cookie is only used to produce anonymous statistics
  • The cookie does not allow the user's navigation on other sites to be tracked.

Third party cookies to improve the interactivity of the site

This site relies on certain services provided by third parties which allow :

  • to offer interactive content;
  • improve usability and facilitate the sharing of content on social networks;
  • view videos and animated presentations directly on our website;
  • protect form entries from robots;
  • monitor the performance of the site.

These third parties will collect and use your browsing data for their own purposes.

How to accept or reject cookies

When you start browsing an eZpublish site, the appearance of the "cookies" banner allows you to accept or refuse all the cookies we use. This banner will be displayed as long as you have not made a choice, even if you are browsing on another page of the site.

You can change your choices at any time by clicking on the "Cookie Management" link.

You can manage these cookies in your browser. Here are the procedures to follow: Firefox; Chrome; Explorer; Safari; Opera

For more information about the cookies we use, you can contact INRAE's Data Protection Officer by email at or by post at :


24, chemin de Borde Rouge -Auzeville - CS52627 31326 Castanet Tolosan cedex - France

Last update: May 2021

Menu Logo Principal Logo partenaire


Develop a software to facilitate the use of the Graphic Parcel Register

The Graphic Parcel Register, derived from farmers' CAP declarations, is one of the richest databases on agricultural territories.

Funded under the 2017 "Innovation" call for projects of LabEx BASC, the RPG Explorer Booster project (abbreviated as R&B) took place over 2 years (2017-2019).

Project leader: Philippe MARTIN (UMR SADAPT)

Managers of natural resources (water, biodiversity, etc.) such as local authorities or decentralized state services need information on the evolution of agricultural territories to evaluate and adjust their policies1. The information concerns the evolution of crop rotations, crop successions and farm parcels2. This information, integrated into biophysical models (i.e. nitrogen and carbon flows), makes it possible to assess the impact of current agricultural activities on natural resources. They also serve as a basis for scenarios of territorial evolution associated with public policy choices3.

The Graphic Parcel Register (RPG in French), derived from farmers' CAP declarations, is one of the richest databases on agricultural territories. It contains details of the crops grown each year on each parcel. We also know which plots are part of the same farm. The use of the RPG is, however, complex because it requires solid skills in Geographic Information System (GIS)  and in agronomy of the territories.

Visualisation du registre parcellaire graphique pour l'année 2013, superposé à l'orthoimagerie

Geoportal visualization of the 2013 Graphic Plot Register (National Institute of Geographic and Forestry Information)

In this logic, UMR SADAPT has developed a tool, RPG Explorer4, which facilitates the use of the RPG. RPG Explorer is a freely distributed software that allows to integrate RPG data into a local database (postgreSQL postGIS), to combine this information with others (watershed boundary, soil map) and to extract important information from it using easily configurable queries. In 2016, the tool was the subject of many requests both in research projects and for development (local authorities, consultancy firms). But at that time, RPG Explorer was only carried by its initiator (P. Martin) in collaboration with a private computer developer.

The R&B project (RPG Explorer Booster) allowed the hiring of an engineer for one year to work on the development of the tool, i.e. the reflection on the development of new modules, the testing of the new versions developed by the service provider, the organization of training, the assistance to users and the implementation in research programs.

The project involved the ADEME (Agency for Ecological Transition) and the OFB (French Office for Biodiversity), which financed the development of modules dedicated to the management of catchment areas for the OFB and to carbon assessment in territories with Territorial Climate Air Plans for the ADEME. The project also strongly involved Agro Transfert, which through the ABC'Terre research program developed a method for calculating the carbon footprint in agricultural areas, of which RPG Explorer is the first link.

logo ADEME
Logo Agro Transfert
Logo Ministère Agriculture et Alimentation






The R&B project doubled the number of requests to use the tool (from 150 to 300). It has also doubled the number of people trained in its use (from 67 to 130). Among the applicants, there is a great diversity of profiles: 35% communities/design offices, 26% education/research, 16% chambers of agriculture, 14% decentralized state services.

The project had a strong financial leverage effect since it allowed to obtain a new 2-year contract with the OFB. The contract also allowed the initiation of international collaborations around the use of equivalent databases to the RPG in Sweden, Italy and Spain. Finally, it has allowed the development of collaborations with the Ministry of Agriculture to work upstream on the format of RPG data as well as on the conditions of their distribution to users.

In 2020, RPG Explorer is the subject of new work with two main axes: direct use of the tool's outputs (online publication of the crop sequences calculated with RPG Explorer for the whole France over 2007-2018), and technical developments, the first of which is direct access to the tool via a web interface, operating from a server so that users are not limited by their computer capacity.

Oral communications

> Martin P., Martin L., Rizzo D., Marraccini E., 2018. Use of the French Land Parcel Identification System for inter farms new organization design. XV European Society for Agronomy Congress. August 27-31 2018 Geneva.

> LabEx BASC Scientific Days February 4, 2021:

Cover vidéo R&B

==> The researcher explains the project and its RESULTS in VIDEO


1. Mignolet et al., 2007, Bretagnolle et al., 2011.

2. Bouty, 2015.

3. Thérond et al., 2009, Martin et al., 2014.

4. Levavasseur et al., 2016.