STUDIES ON THE RELATIONSHIPS BETWEEN ECOLOGICAL CONDITONS AND GROWTH AND DEVELOPMENT OF OLIVE TREE IN THE SOUTH OF SHAANXI PROVINCE Characteristics of soil microbial communities under dry and wet condition in Zoige alpine wetland Effects of Moisture Conditions on the Physiological Indexes of Young-fruit Stage Loquat in North Marginal Area Effects of Moisture Conditions on the Physiological Indexes of Young-fruit Stage Loquat in North Marginal Area Effect of Temperature and Moisture Condition on Seed Germination of Achnatherum Inebriants(Hance)Keng