Who: Université Libre de Bruxelles – ULB. Founded in 1834
24,000 students, 5,000 staff members, 4 campuses (425,000 m2)

Context: The various ULB campuses contain urban green spaces. In the context of its environmental policy, the ULB introduced a programme in 2009 for making the most of its green spaces.
Description: The aim of this programme is not just to conserve biodiversity on the campuses, but also to increase and create a variety of ecological niches.

A number of measures have been taken.
• The introduction of a management plan for the semi-wild spaces on the Erasme campus with the aim of conserving biodiversity there. The signing of the Natagora "Réseau Nature" (Nature network) Charter in September 2009.
• A reduction in the amount of pesticides used, together with rational and minimum use of chemical fertilisers in campus maintenance.
• More green areas through the introduction of green roofs. The ULB now (2013) has 5 green roofs, with a total surface area of more than 1000 m2.
• Giving greater prominence to native plants. A completely new project was started on the Solbosch campus in 2011, involving planting the surroundings of a new building (K) with solely native plants and a wildflower meadow for late mowing.
•A tree path! The Solbosch trees. In May 2012, the ULB launched its tree discovery trail on the Solbosch campus. Forty-five specimens of particular interest were identified, labelled and marked on an educational map available to campus users. The path encourages visitors to admire and protect this remarkable green heritage.

The last project currently underway is due to end in January 2014 with the introduction of a long-term and differentiated management plan for all ULB green spaces.

Results: The projects for making the most of the green spaces have attracted great interest in the University Community.
A number of them are very visible, such as the planting of native plants or the tree discovery trail, while other are less visible, such as the green roofs (not open to the public). These actions are however all necessary and the fact that we are working both on raising awareness for and making the most of the existing green spaces, while at the same time creating new spaces has resulted in a fresh impetus at all levels of the University (campus management, academic teaching staff, visitors, etc.).
Duration: Started in 2009, no end date
Website: www.ulb.ac.be/environnement, http://www.ulb.ac.be/parcoursarbres/index.html
Category: Campus management / Landscape