The human-natural coupling system focuses on the organic combination of natural and human processes, and the effective link of knowledge-science-decision. Through monitoring surveys, model simulations, scenario analysis, and optimization controls at different scales, the integrated study (multi-factor, multi-scale, multi-disciplinary, multi-model, and multi-source data) is carried out to explore the system's fragility, resilience, adaptability, and bearing boundaries. The study of the humannatural coupling system and the understanding of the complex interaction between humans and nature will provide a systematic and mechanism support for the sustainable development. On the basis of the concept reorganization of the human-natural coupling system research framework, and the bibliography analysis of the human-natural coupling system-the sustainable development, this paper discusses the key fields and directions of the human-natural coupling system in the future researches.

human-nature coupling system  /  sustainable development  /  geographical science