关键词: 塔克拉玛干沙漠公路, 植物固沙, 立地条件, 评价

Abstract: Due to the extremely arid climate and high salt context in soil and underground water, the vegetation is very sparse and only 12 species of plants were found in the center of Tarim basin. In order to stabilize the mobile dunes along the Taklimakan highway by biologic method, the introduction and implantation of exotic plant have been tested and 50 species of plants have been successfully vegetated. Using the salt water irrigation technology, the human oasis of dune stabilization vegetation, covering 42.2 hm2, has been established. As the great special variety of the physical environment of plant growth requirement, it is very important to zone and evaluate soil salt content and potent groundwater. The results show that the freshwater reserved in paleo-riverway on alluvial plain and salt water reserved in alluvium and diluvium on the foot plain of Kunlun Mountains. As the available water resource is very limited, the water saving irrigation technology should be used to sustain the dune stabilizing vegetation and mechanic measures should be developed to protect the vegetation from mobile dune being buried in severe aeolian hazard sites.

Key words: the Tarim Desert Highway, vegetal dune stabilization, site condition, evaluation