A.ordosica 第1页

COMPAPATIVE ANALYSIS OF THE ULTRASTRUCTURE OF PHOTOSYNTHETIC MEMBRANK IN AMMOPIPTANTHUS MONGOLICUS AND ARTEMISIA ORDOSICA WITH RELATION TO DROUGHT STRESS STUDY ON THE EFFECT OF SIMULATED PREGIPITATION CHANGE ON THE PHYSIOLOGICAL ECOLOGY PROCESS FOR ARTEMISIA ORDOSICA SEEDLINGS IN MAOWUSU SANDLAND STUDY ON GAS EXCHANGE CHARACTERISTICS OF MAIN CONSTRUCTIVE PLANTS A.ordosica and C.korshinskii IN SHAPTOU REGION