Complex sentence: Maintaining soil health is a regional or catchment-scale issue; because soils are a dispersed asset the only effective way is to ensure soil health generally is to encourage a broad, consistent and economically appealing approach.
Split into simpler sentences: Maintaining soil health is a regional or catchment-scale issue. Because soils are a dispersed asset, the only effective way is to ensure soil health generally is to encourage a broad, consistent, and economically appealing approach.