中文摘要：

陆地表层是众多要素相互作用而形成的一个多过程、多尺度耦合的综合体,是人类赖以生存和发展的环境。陆地表层地域系统是对该综合体空间上有序分布、时间上动态平衡的表征,是自然地理学研究的核心内容。近百年来自然与人类活动,如何驱动陆地表层要素相互作用的效应发生变化,进而影响到整体格局的改变,是全球变化与地理学科研究领域的一个前沿、基础科学问题。在对中国现代自然地域系统研究历程简要回顾的基础上,通过总结地域系统研究的难点与问题,凝练自然地域系统动态研究的学术思路,即以要素—格局—动态的逻辑逐步深入,重点关注过程与互馈、区域变动与地域系统等主题;进而设计自然地域系统动态研究总体方案,包括：以区划方法论创新、动态方案及其驱动机制为研究目标,设置要素变化、区域变动、区域解析与系统划分和地域系统动态等4个方面内容,并提出自然地域系统动态研究技术路线及关键技术的应用范围。

英文摘要：

Land surface, the environment where human survive and develop, is a synthesis formed with nmhi- scaled and multi-process interactions between natural factors. The terrestrial system, which is the core study field of physical geography, can be defined as the land surface synthesis with spatially ordered distribution and temporally dynamic balance. In the past century, natural variations and human activities have had profound influences on land surface. How they drove the changed interactions between land surface factors, and further altered the land surface pattern, are the frontier and basis for global change and geography studies. Based on the brief review of research on terrestrial system at home and abroad, the paper summarized the existing difficulties and problems, and then pro- posed the academic logic for studies of dynamic of terrestrial system. The research should be conducted following the logic of elements, patterns and dynamic, with emphasis on themes of processes and feedback, variation in re- gions and terrestrial system. At last, the synthetic scheme was designed for research on dynamic of terrestrial sys- tem. Aimed at innovation of regionalization methodology and detection on driving mechanism of dynamic of terrestri- al system, the following four aspects should be included： Changes and interaction mechanism of key factors （i. e. water, soil, climate and plant） and their spatial-temporal variation ; Quantifying the influences of factor interactions on regionalization formation and conversion; Quantified assessment on changing tendency and magnitude of land surface pattern under global climate change; Accomplishment of dynamic land surface pattern at different past and future stages. Correspondingly, the technical route should combine bottom-up and top-down methodologies, with field survey, earth observation, station monitoring and mathematical simulation to build the comprehensive data- base. Conducting research on dynamic of terrestrial system can be helpful for developing theory of integr