This paper is written for the symposium in celebration of the eightieth birthbay of professor Huang Bingwei, honorable director of the Institute of Geography, Chinese Academy of Sciences.The paper is hivibeb into three sections,The first section reviews the basic principles and thinking of the three new directions of integrateb physical geography, namely.water-heat balance, chemical geography and geography of biological com munities, whicd were proposed by professor Huang in the early sixties, The second section surveys major achievements on the three new directions by staff anb students in physical geography specialty of Department of Geography, Zhongshan University. The third section describes the process in which the staff and students in the specialty in Zhong shan University applied the theories of the three directions to give birth and advance environmental science, anb baseb on the achievement of environmental science pushed forward the study of the three directions to a higher new step.