Studies on the sandy desertification in China Ecological studies on relationship between the process of des ertification and vegetation dynamics in the west of northeast China:Vegetation o rdination ESTABLISHMENT OF MATHEMATICAL WARNING MODEL ON SANDY DESERTIFICATION AND THE WARNING RESULT OF 12 PROVINCES IN THE NORTH OF CHINA MONITORING AND EVALUATION INDICATOR SYSTEM ON SANDY DESERTIFICATION OF CHINA Study on Structure and Combination Techniques of Sand-Stabilization Plants at Sandy Desertified Area Monitoring sandy desertification of the Otindag Sandy Land based on multi-date remote sensing images Analysis on the soil factor and physiological response of the plants in the process of sandy desertification on grassland SIMULATION OF NET PRIMARY PRODUCTION IN KAOKAOLAIGOU WATERSHED, CHINA Ecological study on relationship between desertification process and vegetation dynamics in west of northeast China:Vegetation classification Researches on the stress resistant types of the plants during the grassland sandy desertification process Ecological studies on the relationship between the process of desertization and vegetation dynamics in the west of northeast china:community diversity and desertization process Current Status, Dynamics and Causes of Desertification in China A PROBE INTO THE STATUS AND COUNTER MEASURES OF SANDY DESERTIFICATION IN CHINA THE QUANTITATIVE ANALYSIS OF EFFECT FACTORS ON SANDY DESERTIFICATION IN ORDOS PLATEAU Soil sandy desertification and salinization and their interrelationships in Yanghuang irrigated area of Hongsipu, Ningxia of Northwest China.