The seedling-growth of the Tamarix was usually discorered in flood Lands of the river

mountain torrents and in the low-land between the sand dune.The mature brush- -field was discovered all over the arid land.On the south slope of the Tianshan where the rainfall is about 50-60mm each year.There are some pieces of native vegetations and the mature brush-fields only in this place.But on the small depo sited topography

especially on the low-land where excavated in building highway the seedling-growth of Tamarix grows densely.This fact shows that the afforesta tion of the Tamarix brush-fields are possibly in the arid land.