2. Sustainable forest development must contribute, in particular, to1° the preservation of biological diversity;
2° the maintenance and improvement of the condition and productivity of forest ecosystems;
3° the conservation of soil and water;
4° the maintenance of forest ecosystem contributions to major ecological cycles;
5° the maintenance of the many socio-economic benefits society derives from forests; and
6° the consideration, in making development choices, of the values and needs expressed by the populations concerned.