During a field visit to the Potwar Plateau, students draw the erosion features in Fig. 1. Sparse scrub has been removed from several slopes for fuelwood, an...
Question 1 Report
During a field visit to the Potwar Plateau, students draw the erosion features in Fig. 1. Sparse scrub has been removed from several slopes for fuelwood, and short intense monsoon storms now carry sediment into a nearby reservoir. The district officer wants to identify factors that have accelerated this landscape change.
(a) Identify the erosion feature labelled X. [1]
(b) Describe how rainfall can enlarge the feature labelled X. [1]
(c) Explain three methods that could reduce soil erosion on these slopes. [3]
Answer Details
(a) Gully/ravine [1] (b) Runoff removes loose soil from the channel, deepening and widening it [1] (c) Any three: plant trees/grass to bind soil [1]; construct contour bunds/terraces to slow runoff [1]; build small check dams/gabions in gullies [1]; restrict grazing and fuelwood removal [1]; cultivate along contours [1]. [3]
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