Over irrigation is responsible for land degradation due to water logging which leads to increase in salinity and alkalinity in the soil. Over irrigation and continuous use of land over a long period of time without taking appropriate measures to conserve and manage land has resulted in land, degradation in Punjab.
OR
Mineral processing like grinding of limestone for cement industry generates heavy amount of dust which is released in the atmosphere. Later, it settles down in the surrounding areas which slows the process of infiltration of water into the soil. This is how land gets