Describe the areas of Uttar Pradesh affected by soil erosion and also identify the factors responsible for it.

Affected areas

• The Yamuna–Chambal ravine belt in Etawah, Auraiya, Jalaun, Hamirpur, Banda, and adjoining parts of Kanpur Dehat is the state’s most notorious badland zone.
• Bundelkhand (Jhansi, Lalitpur, Mahoba, Banda, Chitrakoot) loses soil from shallow red-black mixes on granite–gneiss slopes after intense rain on thin cover.
• The southern Vindhyan fringe (Mirzapur, Sonbhadra, parts of Prayagraj and Chandauli) sees gully and sheet erosion on plateau and escarpment.
• Shivalik and Bhabar tracts of Saharanpur, Bijnor, and the north-west terai lose soil where forests were opened and torrents (chos-type) flash after rain.
• Ganga, Ghaghara, Rapti, and Gandak banks in eastern and central districts suffer flood-time scour and bank erosion, shifting villages and sand-casting fields.
• Western doab canal tracts can show both waterlogging-salinity and local gullying on field edges; the erosion story there is milder than Bundelkhand but real on river bluffs.

Factors responsible

• Intense monsoon bursts on bare fields after harvest, and a long dry season that powder the topsoil, set up rain-splash and rill wash.
• Slope and dissected plateau in Bundelkhand–Vindhya, plus deep alluvium that ravines can cut, are the geological invitation.
• Deforestation, overgrazing, and fuelwood pressure remove the root mat that held Bundelkhand and terai soils.
• Unscientific tillage up-and-down slope, monocropping, and loss of field bunds increase runoff.
• River regime: Himalayan silt load, embankment-constrained floods, and shifting braided channels undercut banks in the east.
• Ravine expansion is helped by cattle tracks, brick earth cutting, and unchecked gully heads that eat backward into farmland.
• Mining and road cuts in Sonbhadra–Mirzapur add local acceleration.