This in turn has acted as a stepping stone to greater agricultural intensification as farmers become more receptive to new ideas.
The demographic mechanism remains unclear, although agricultural intensification is suspected to have played a part.
Such policies, the report argues, lead to agricultural intensification and encourage environmentally-damaging reliance on agro-chemicals.
It is threatened by agricultural intensification, aquacultural development and human disturbance.
Population increase and agricultural intensification is reducing the fallow period.
Land use changes, such as deforestation or agricultural intensification, have the potential to change the amount of precipitation that falls in a region.
States throughout the region faced similar limits to agricultural intensification.
Threats to the site include agricultural intensification and aquacultural development.
They may represent a period of agricultural intensification and population growth in the later Iron Age.
That evidence for agricultural intensification is of several types.