Which one of the following is the main form of degradation in irrigated areas?

Wind erosion Gully erosion Salinisation of soils All of the above

Salinisation of soils

One of the serious problems that arises out of faulty strategy of irrigation and agricultural development is degradation of land resources. This is serious because it may lead to depletion of soil fertility. The situation is particularly alarming in irrigated areas. A large tract of agricultural land has lost its fertility due to alkalisation and salinisation of soils and waterlogging.