Good quality farms with infrastructure to effectively manage environmental risk were well sought after.
Lesser-quality farms with tired infrastructure and environmental risks were more difficult to sell and some of those properties were being converted to other uses, including beef farms.
The livestock sector remained buoyant, despite prices for lamb and beef easing in the past year and there was strong demand for quality properties to farm.
That sector was also being underpinned by demand for land to plant trees to harvest carbon revenue.
Dairy farmers were benefiting from both a strong production season and a high milk price. Those factors did not often coincide, the report said.
Despite the strong returns, the sector was expected to shrink as higher operating costs eroded production, particularly on farms with high nutrient output relative to the ability of the catchment to handle the nutrient loading.
In the areas with high nutrient loading, a reduction in stocking rates or change of land use would most likely be required, the report said.