A preliminary report on the field experiment of dune fixation using lignin-based sand stabilization material

This paper presented the preliminary results of desertification control in the field a new sand fixation material,which was made from straw pulping black-liquor.The field ecological measurement was conducted in a three-year old sand fixation community dominated by Agriophyllum squarrosum(L.) Moq.,and Artemisia desertorum Spreng..The results showed the lignin-based sand stabilization material(LSSM) can not only fix the fugitive dune but also make it vegetative fast since the arenaceous plants can be planted and grew well simultaneously with the LSSM implementation.It was found that the fixation shell formed by LSSM protected the soil water from evaporation effectively,and was beneficial to the plant growth and to the formation of stable community.As arenaceous plants community constructed,the organic matter and total nitrogen in the upper-level soil was increased significantly.It stimulated the increase of soil nutrition and consequently the plant growth.Compared with the traditional sand fixation method known as "straw-grid" technique,the utilization of LSSM speeded up the formation of microbiological-shell and the soil amelioration as.