To reduce recharge to levels that existed in pre-clearing conditions is generally infeasible in most agricultural landscapes. This is because there are too few profitable perennials that can replace crops or that can be adopted at the scale required. In most recharge areas that are at risk of future salinity, the goal is to minimise recharge. This can be done by planting wide-spaced trees (alley farming), areas of perennials on suitable soils, and by preventing soils from being left without a significant leaf area in winter and spring. In recharge areas remote from saline areas there is often little incentive for farmers to adopt low profit, low recharge systems. In addition, recharge is the source of fresh groundwater, and a trade off between consumptive use and salinity should be acknowledged.