Rakiraki, Fiji. What had been smooth, steep (50-percent) slopes turned into tall terraces fronted by dense stands of grass when vetiver hedges were established here in the 1950s. In the years since, the terraces have grown almost 2 m high in some places. Soil losses have been blocked and stable natural terraces formed, all at little or no cost to the farmer. (D.E.K. Miller)