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珠江上游地区农业人口众多 ,对生态环境依赖和压力很大。本文通过对珠江上游农业区域的生态现状进行综述 ,阐明生态安全对可持续发展的重要性以及生态安全预警系统建立的必要性 ,进而对建立生态安全预警系统的可行性、原则、基本方法和步骤进行初步研究 ,为这一区域生态环境和可持续发展研究奠定基础。
The agricultural population in the upper reaches of the Pearl River is very large, and it is heavily dependent on the ecological environment. This article summarizes the ecological status quo of agricultural areas in the upper reaches of the Pearl River to clarify the importance of ecological security to sustainable development and the necessity of establishing the early warning system of ecological security. Then, the feasibility, principles, basic methods and steps of establishing early warning system of ecological security are expounded. Conduct a preliminary study to lay the foundation for the study of the ecological environment and sustainable development in this region.