Gamekeepers can manage the carrying capacity of a nature reserve by calculating the energy transfer from primary producers to herbivores.

A conservation reserve contains 850 red deer.

• The deer feed on heather forage.
• 1 hectare of land produces 8.4 tonnes of heather forage.
• The heather forage has an energy content of 18 MJ per kg.
• Red deer can assimilate 64% of the energy in the heather forage.
• Each deer requires 140 MJ of energy to survive the winter.

Calculate the area of land needed to provide enough energy from heather forage for 850 red deer to survive the winter.

Give your answer in $m^2$.

Give your answer to 3 significant figures.

1 hectare = 10,000 $m^2$

1 tonne = 1000 kg