Report on the effect of desertified steppe in Xilinguole League of Inner Mongolia
In order to evaluate and summarize the technical models suitable for ecological recovery of sandy grassland,heavily sandy grassland in Dong Ujimqin Banner of Xilingol League is taken as the research object.Choice of comprehensive treatment technology model for saucer blowout,bowl blowout,trough blowout,dune blowout adapting to local conditions.The results showed that in the second year of implementing restoration measures,23 identified plant species were recorded,belonging to 7 families and 21 genera.The community height ranged from 9.33 cm to 24.00 cm,the community coverage ranged from 8.67%to 30.33%,and the hay yield was 8.89 g/m2 to 47.36 g/m2.In the third year of restoration,34 plant species were recorded,belonging to 12 families and 30 genera.Includes replanted species such as Agropyron cristatum,Hedysarum fruticosum,Astragdlus laxmannii.The community height ranged from 12.33 cm to 36.00 cm,the community coverage ranged from 20.33%to 48.67%,and the hay yield was 29.93 g/m2 to 162.00 g/m2.Compared with the second year of restoration,the average increase of vegetation height was 66.67%,the average increase of vegetation coverage was 111.95%,and the average increase of hay yield was 311.77%.