【摘要】 从分析科尔沁沙地近代景观格局的形成与变化入手，阐述了由于景观生态系统的边缘效应与不合理的人类活动相耦合，因此而引发的共振效应导致了科尔沁沙地人地系统的不稳定性。又借助环境库兹涅兹曲线（ＥＫＣ）论证了该系统人地关系的协调机制。提出改变不合理的人类活动是实现科尔沁沙漠化综合防治的关键更多还原

【Abstract】 Based on the analysis of the formation and variation of landscape’s patterns in Horqin sandy land, the edged effect of landscape ecological system was explained, which together with unreasonable human activity caused the instability of man land system. The system’s coordination was further expounded by means of Environmental Kuznents curves. Changing the means of unreasonable human activity was the key of desert control.更多还原