3.4 The Ecological security of Xishuangbanna in 2000 
The result showed that the ESI average values for 
Xishuangbanna in 2000 were 58.7, the maximum is 98.8 and 
the minimum isl8.7 (show Figure 3.) . From the view of 
spatial distribution, the state of ecological security in high 
elevation region is much better than low elevation region. And 
eastern region is better than western region. 
Figure 3.Ecological security synthetic index map in 
Xishuangbanna in 2000 
4. CONCLUSIONS 
Eco-security is becoming more and more important with the 
rapid development of our modem society and information 
technology. Knowing the status of eco-security is crucial for 
making sustainable development policy. Ecological security 
evaluation is an important element in the ecological security 
study. The assessment based on the GIS&RS provides scientific 
basis with the correct analysis of the development and decision 
making of ecological environment. 
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ACKNOWLEDGMENTS 
This work is financially supported by the National Key Project 
for Basic Research of China (Grant No.2003CB415105-02), the 
National Natural Science Foundation of China (Grant No. 
40571062). 
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