Question

why has the land under forest not increased much since 1960-61?​

Answer 1

The improper use of forest land has degraded the available land area, and has made conservation of forests difficult. Human activities such as deforestation, mining and quarrying have contributed to the slow growth rate of forests. Thus, land under forest has increased by only about 4% since 1960-61.

Answer 2

land under forest not increased much since 1960-61 due to following reason-

The improper use of land which has caused degradation of the available land area and made conservation of forest difficult.

The ever increasing illegal cutting of trees and forest cover to meet the needs of an increasing population.

Large scale development projects, industrialization and urbanization have  reduced the forest cover to a great extent.