| According to the ecological safety evaluation index data of land-use change in Ji’an City from 1999 to 2008, positive treatment on selected reverse indices is conducted by Reciprocal Method. Meanwhile, Index Method is used to standardize the selected indices, and Principal Component Analysis is applied by using year as a unit. FB is obtained, which is related with the ecological safety of land-use change from 1999 to 2008. According to the scientific, integrative, hierarchical, practical and dynamic principles, ecological safety evaluation index system of land-use change in Ji’an City is established. Principal Component Analysis and evaluation model are used to calculate four parameters, including the natural resources safety index of the land use, the... |
