Focusing Agricultural Conservation Where the Land Needs It Most

This news post explains how BIOAg-funded research is using erosion modeling to help target agricultural conservation practices in eastern Washington. It describes how water erosion visibly damages the Palouse landscape, carrying away nutrient-rich topsoil and reducing long-term productivity. The post notes that while conservation practices such as reduced tillage, no-till, contour farming, and cover crops have lowered erosion since the 1980s, adoption can be difficult and costly for farmers. The author argues that incentive programs and conservation efforts can be more effective if they focus on “hotspots,” the relatively small portions of fields or watersheds that generate a large share of soil loss. Using the USDA Water Erosion Prediction Project (WEPP) model, the project estimates soil loss across agricultural watersheds, maps erosion patterns, identifies hotspots, and compares erosion outcomes under different tillage scenarios. The goal is to support decisions that protect vulnerable slopes while reducing risk and unnecessary costs for producers.