Pros & Cons
3 Pros:
- Degraded land can easily be geo-localised
- The Global Living Planet Index (LPI) is well-defined: the average decline in monitored wildlife populations, measured relative to 20,811 populations of 4,392 species in 1970
- WWF (defining LPI) is an important global NGO
3 Cons:
- Low degree of systematisation in both parameters
- Land degradation is difficult to define, esp. in a functional manner
- LPI suffers from non-generalisable species definition and population identification
