关键词: 吉林省, 沙化土地, 持续农业体系, 实践

Abstract: 87.9% sandy land of Jilin Province is distrbuted in Baicheng and Songyuan semiarid zone, which belongs to the Horqin and Songnen sandy land. The area is 9216.5 km², occupying 19.6% of the area of the west of Jilin Province. The sandification land plays an important role in developing economy of the area. Through 8-year practices from 1986 to 1993, we have succesfully established three sustainable agricultural systems in different environments of different types of sandification lands. The first sustainable agricultural system is to "plant trees, shrubs and fodder grasses". The second one is to "plant fruit trees, medical plants and coarse grains". The third one is to "plant food crops, trees and fodder grasses". We have found out a new way to utilize the invisible resources as best as we can and to develop the economy on the sandification land.

Key words: Jinlin Province, Sandification land, Sustainable agricultural system