Foreign Minister Silvan Shalom will open Thursday a new "Ambassadors' Forestâ€š" in Nachal Carcor just north of Beersheba.
Shalom is expected to be joined for the ceremony by 49 ambassadors, as well as JNF World Chairman Yehiel Leket.
The 700-dunam plot is located in the greenbelt area which the JNF is developing around Beersheba.
Before the ceremony begins the diplomats will take a tour of the western Negev settlements of Nizan and Mavkiim, where they will meet a number of Gush Katif evacuees and plant some trees.
The Ambassadors' Forest is one of a number of projects associated with the UN's designation of 2006 as the "International Year of Deserts and Desertification."
The forest will be planted with a variety of trees including acacia, jujube, fig and carob.