近年来珠江三角洲人地系统发生了深刻变化，经济高速发展、城市化、工业化规模不断扩大，人口急剧增长，环境质量下降，自然资源供需关来紧张。进行人地系统研究是本区当
前社会经济与环境资源协调发展的迫切需要。
   

    The man-earth system changed deeply with the economy developed fast in recent years in thePearl River Delta. The scale of industrialization and urbanization extended continously and the population increased rapidly a.s the economy developed in this area. As a result,the quality of environment descented and the relations between the offering and requirement of natural resources are strained. The research on the man-earth system in Pearl River Delta should be carried out in order to take further step
to develop the society and economy , and protect the environment and natural resources.