Which combination is effective in controlling erosion?

The combination of runoff management and soil stabilization is highly effective in controlling erosion because it addresses two critical factors contributing to erosion processes.

Runoff management involves techniques designed to slow down, redirect, or reduce water flow over land, which is crucial in preventing the transportation of soil particles. This management can include practices like creating swales, installing retention basins, or using permeable surfaces to increase water infiltration and reduce surface runoff.

Soil stabilization, on the other hand, focuses on maintaining the integrity of soil structure and preventing soil displacement. This can be achieved through various methods such as introducing vegetation, applying mulch, or using geotextiles that anchor the soil. These practices help bind soil particles together and reduce the likelihood of erosion occurring due to either water runoff or wind.

By combining these two strategies, a more effective erosion control system is created, addressing both the causes of erosion (through runoff management) and its prevention (through soil stabilization). This holistic approach is essential for managing both existing erosion issues and preventing future ones.