1.Seed movement across the soil surface of these bare alkali-saline patches was abundant and dominated by the seeds of pioneerspecies, such as Chloris virgata and Suaeda corniculata, which accounted for over 96% of these trapped seeds.
3.2.The sixteen plants are firstly divided into six types according to evaluation grades and subject function statistical method:the first type is Cajanus cajan and Crotalaria mucronata,the best adaptability ,which can be used pioneer plant or constructive species;
