Soil Conservation Methods

Contour bunding is a soil conservation technique specifically designed for low flat plains and areas close to stream courses that are liable to flooding. Contour bunds are embankments or ridges constructed along the contours of sloping land to reduce water flow and prevent soil erosion. They are built perpendicular to the slope to trap runoff and reduce flood intensity in flood-prone plains. This method is particularly effective in low-lying areas where water accumulation and flooding are concerns. Option (a) refers to desert margins where wind erosion is the problem, requiring different techniques like windbreaks. Option (c) relates to scrublands where weed control methods are used. Contour bunding is not primarily used for wind erosion or weed control. > Contour bunding: embankments perpendicular to slope in flood-prone plains — effective for water management. Answer: (b).