A STUDY ON THE OPTIMAL VEGETATION COVERAGE FOR SANDY GRASSLAND IN NORTHERN CHINA BASED ON SOIL WATER BUDGET Soil nitrogen characteristics of grassland on sandy soil undergoing vegetation restoratio Effects of nitrogen addition on grassland species diversity and productivity in Keerqin Sandy Land. Adaptation of Herdsmen in Sandy Grassland to Climate Changes COMPARISON ON THE DIFFERENCE IN SOIL SEED BANK BETWEEN GRAZED AND ENCLOSED GRASSLANDS IN HORQIN SANDY LAND Influence of plant species diversity on productivity of sandy grassland in Kerqin Region Effects of different exclosure management on soil and plant characteristics of sandy grassland Desertification mechanisms and process of soil chemical and physical properties in Hulunbeir sandy grassland, Inner Mongolia Dynamics of plant community traits during an 18-year natural restoration in the degraded sandy grassland of Hunshandak Sandland An experimental and demonstrational study on restoration of degraded ecosystems in Hunshandak Sandland Development of the Expert Systems for Management of Maowusu Sandy Grassland A comparative study of plant biomass in a native grassland exclosure A Preliminary Study on the Composition and Dynamics of Rodents in Sandy Grassland of Ordos A Model of Precipitation Redistribution Within a Three-Leveled Sandy Grassland Landscape Changes of four common plant populations growth and their anti-oxidative enzymatic system in desertification process Effect of Different Revegetation Management Methods on the Soil and Vegetation Characteristics of Degraded Sandy Grassland