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SD Index: 632 points for Canada

GIS is also an essential tool for developing spatial indicators, such as the percentage of each ecosystem type that is natural, modified, cultivated or built; the status and trends of ecosystem diversity; the extent and security of ecosystem protection; the extent and severity of land degradation; the degree of conversion and modification of inland water systems; and the spread and intensity of marine pollution and habitat degradation. Because the system comprises information of different types (eg soil fertility, flood hazard), it can also be used to highlight possible correlations that may suggest significant links. It can generate scenarios by manipulating the variables.