Pakistan has several forest types because altitude, temperature, rainfall, soil, river flooding and salinity vary greatly. Natural forests include coniferous, scrub, riverine and mangrove vegetation, while people have created irrigated plantations, roadside belts and farm forests. Distribution questions require both location and physical explanation.

Why forests differ

Forest type is controlled by moisture, temperature, altitude, soil and drainage. High mountains are cool and receive snow or rainfall, supporting conifers. Dry foothills and plateaux support scrub. River flooding supplies moisture to riverine forests, while saline tidal water supports mangroves along parts of the coast.

Human activity has altered the original pattern. Cutting, grazing, farming, dams and settlement have reduced natural forests, while plantations and farm forestry have created trees in areas that were not naturally forested.

Coniferous and highland forests

Coniferous forests occur mainly in the northern and north-western mountains, including parts of Khyber Pakhtunkhwa, Gilgit-Baltistan and Azad Jammu and Kashmir. Species are adapted to cold conditions and steep slopes. At very high altitudes, tree growth becomes limited and alpine vegetation replaces forest.

Their distribution is not continuous. Aspect, altitude, local rainfall, soil depth and human cutting create a patchwork of dense forest, open woodland and grassland.

Scrub forests

Scrub vegetation occurs in drier foothills, the Potwar Plateau, Salt Range, Sulaiman and Kirthar regions and parts of Balochistan. Trees and bushes are shorter and more widely spaced because moisture is limited. Many species have small leaves, thorns or deep roots that reduce water loss.

Scrub is often heavily grazed and cut for fuelwood, so degraded areas may resemble bare land even where natural scrub once existed.

Riverine, mangrove and plantation forests

Riverine forests grow on floodplains and islands along the Indus and lower tributaries where periodic flooding supplies moisture and fresh silt. Mangroves occur in tidal creeks and mudflats, especially in the Indus Delta and around parts of the Sindh coast.

Irrigated plantations such as Changa Manga and Chichawatni were developed in the plains using canal water. Linear plantations grow beside canals, roads and railways, while farm forestry places trees on field boundaries and unused land.

Map and photograph recognition

On a map, link forest type with relief and water: conifers in northern mountains, mangroves at the delta, riverine forest along the Indus, scrub in dry uplands and plantations in irrigated plains. On a photograph, look at tree height, spacing, leaf form, slope, water and human management.

An answer should not identify a forest only by colour. It should use visible evidence and geographical context.