vulnerability of the environment to events in the near future can be determined from the calculated probability of their actual occurrence in the recent past (Agard and Gowrie 2003). Table 1 lists some indicators that this research is proposing for the assessment of sustainable development. The proposed indicators best represent the magnitude of LU/C changes and the threats on the stability and resilience of the ecosystem. As can be seen in Table 1, the first four sets of indicators are chosen because they can be extracted and updated, directly or indirectly, using remote sensing techniques. The remaining indicators have to be acquired from other auxiliary sources.


























 

Indicator Name

Indicator Description

 

 

Land use and Settlement Patterns

This set of indicators is related to the general pattern of land use, with more emphasis on human settlement pattern. Possible sub-indicators are:

· Land use types

· Human settlements (area)

· Infrastructure

· Abandoned land

Vegetation Cover

This indicator focuses on the loss of natural vegetation cover in a country with implied impacts on biodiversity and ecosystem integrity.

Other related sub-indicators may be:

· Vegetation Index

· Forest cover (area)

· Plant composition

Loss Cover

This measures the rate of loss or gain of natural vegetation cover in countries. A related indicator is:
      
· Deforestation and afforestation

Fragmentation of Land and Habitat

This is an alternative measure for pressure on ecosystems resulting from fragmentation into discontinuous pieces. It also relates to habitat disturbance and degradation. A related indicator is:

     · Forest fragmentation (metrics)

Degradation

This indicator highlights the breakdown of ecosystems which leads to decreasing biodiversity, soil quality, resilience against natural events and the assimilative capacity of the environment. This may include:

· Erosion and soil loss

· Runoff rate

     · Soil salinization and fertility (organic matter)

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