The Arboretum, which is developing in the centre of the protected area, will add up to 5000 plant species. Thus the Arboretum of Samboja Lestari will be more species-rich than the famous botanical garden in Bogor on Java. A surface of 159 hectares retains most of the botanical wealth of Borneo. All known tree species of Borneo investigated so far will grow here. At present the Arboretum contains about 750 species. In the aerial photograph, the camp with its water reservoir under construction can be seen. Above left there is a lake, fed by small supplies and rain water. The water is pumped to the reservoir at the camp. From here it can be distributed to the areas of afforestation or the Arboretum (partially visible in the picture).http://www.createrainforest.org/image/508066360360Nowadays some fruits are harvested in the Arboretum. Here you can see a wild form of the Durian, a fruit appreciated by Indonesians and orangutans alike. It stinks, is thorny and very difficult to open, but also absolutely delicious! By means wild forms are lost as a result of agricultural breeding. In the Arboretum, they are retained and cultivated in the emerging rainforest, for example as food for the animals.http://www.createrainforest.org/image/500550360360At the moment about 750 tree species re grown in the Arboretum which is however just a small part of the planned 5000. This picture shows future candidates waiting! 210 species are available in the nursery that will be cultivated in the future and then increase the biodiversity http://www.createrainforest.org/image/500539360360Also Dr. Klaus Ursus Schendel has left a legacy in the guest garden of the Arboretum by planting a tree in June 2002. When he returns as an old man and finds his tree fully-grown, he will certainly be delightedhttp://www.createrainforest.org/image/464147360360The Arboretum is close to the office (here the old one). In order to eradicate the Alang Alang grass and produce an agricultural yield, pineapple is planted between the trees.http://www.createrainforest.org/image/464137360360 To encourage plant growth in the whole Samboja Lestari project, including the Arboretum, an enormous quantity of fertilizers is used. This fertilizer is produced locally and is an organic compound.http://www.createrainforest.org/image/464128360360http://www.youtube.com/v/ca2QMlUyJ88