The key problem for implementation of the sustainable development is to design the strategy and policy which
incorporates the environmental impacts. This paper puts forward a new model based on GIS of ecological environment
protection and sustainable development based on estimating and assessment. The environmental carrying capacity and
developing intensity of studied area are analyzed, the ecological security and the level of sustainable development are
evaluated, and also the constraints are discussed. According to this analysis, the range of Lichuan is divided into four
regions. On the foundation of distinctive characteristics of each area, the designation of the industrial development and
environment protection have been ensured; after that, the environmental impact of the given strategies has been
identified and predicted; finally, several mitigation measures are suggested.
One quality estimate model was put forward. It combined the common-point comparison with the scale of wavelet
analysis. So, the study on uncertainty estimate based on single data set gained enormously advance. The result indicates
that when the ratio between the number of common-points and the number of wavelet low-frequency coefficients is 1.5,
the model can estimate the quality for multi-scale representation of linear feature. It provided the quality estimate model
for multi-scale representation of linear feature based on wavelet analysis.