1. Thorn and Desert forest — These forests are found in the north-western part of India and on the leeward side of the Western Ghats as Rajasthan, Punjab, Haryana, Madhya Pradesh, Maharashtra, Andhra Pradesh and Gujarat. The average rainfall is less than 50 cm. The vegetation cover is not dense. Stunted, thorny trees and bushes grow here. The plants have long roots to tap the underground water and modified stems to store water. Trees found here are date, palms, acacia, palas, cacti, kikar and babool. 

2. Mountain or Alpine forest — These forests are mainly found in Himalayas in Jammu and Kashmir, Himachal Pradesh, Uttrakhand and Arunachal Pradesh. Different types of vegetation occur at different altitudes. The lower foothills have deciduous forests and the middle slopes have mixed deciduous conifers. Grass grows on very high slopes. Coniferous forests have softwood evergreen trees like sal, oak, ash, beech, chir pine, silverfir, chestnut, cedar and deodar. 

3. Afforestation or Vana Mahotsava — Growing of trees/forest (afforestation) has been taken up as Vana Mahotsava in India which is a tree planting ceremony started to maintain the ecological balance and prevent the depletion of the ozone layer. 

The following activities are undertaken on Vana Mahotsava : 

(a) Tree planting to increase area under forests 

(b) Care of trees already planted 

(c) Protection of trees from insects and pests. 

(d) Planting trees on hill slopes and wasteland. 

(e) Preventing illegal felling of trees. 

(f) Free distribution of saplings.