STRENGTHENING THE STUDY OF LAND USE/COVER CHANGE AND ITS IMPACT ON ECO-ENVIRONMENTAL SECURITY--The Trend of the Study of the Dynamics of Human-Nature System Based on "Global Change Open Science Conference 2001" in Amsterdam, Netherlands

The paper reviewed firstly Global Change Open Science Conference 2001 held in Amsterdam, Netherlands, and analyzed the important parts of the impact of human activities in the global change in various fields of the study of global change. Then, the author set forth the important direct of the study of land use/cover change and its impact on eco environment security in the study of global change and sustainable development in China, so as to reveal the driving force of land use change, ecologic affect of land cover change, and the mechanism of land use/cover pattern on the eco environmental security. With a view to the effect of the ecologic environment of China on the global change, under the condition of the eco environmental security of China, the spatial macro pattern has been reestablished.