Land-use change affects hydrological regime
Agriculture also affects other sectors indirectly through the impacts of land-use change on water resources. Conversion of grassland and forests to pasture and arable land alters the hydrological regime of a catchment by modifying infiltration rates, evaporation and runoff.

Land-use and climate change
Land-use change may also contribute to climate change, not only by altering radiation balances and evaporation, but also through increasing CO2 emissions. As with industrial emissions, in the long-term this may bring about changes in water resources that affect all sectors.