Fig. 7. The allocation of planning units to five implementation categories (a). The Y-axis is the biodiversity value of the planning unit, and incorporates a pattern and a process component, i.e. biodiversity value = ecosystem status value (from Fig. 3) + number of corridors (from Fig. 4). Both values range from 0-4 therefore the maximum value is 8, and processes and patterns contribute equally. The X-axis gives the potential farming income from Fig. 6. Individual planning units are not shown on the graph, but their areas within the entire planning domain have been summed. Sums in parentheses reflect areas inside the corridor network only. The distribution of implementation categories within the corridor network is shown in (b). Note that category 5 does not occur within the corridor network at all.