Punjab’s Canals, Roads and Railways Can Become Biodiversity Corridors

Biodiversity conservation is often imagined as work that happens inside national parks or wildlife sanctuaries. Punjab certainly needs protected areas, but species also depend on the spaces between them. The province’s long network of canals, roads and railways creates an opportunity to connect fragmented habitats through well-designed linear vegetation. The useful question is not simply how many trees Punjab plants, but whether those plantations function as ecological corridors.

Punjab already has the physical network

The Forest, Wildlife and Fisheries Department reports that it manages more than 47,000 kilometres of roadside, railside and canalside linear plantations. Its current Afforestation along Linear Plantation in Punjab project, running from 2025–26 to 2027–28, is explicitly intended to create green corridors along canals and railway lines while supporting biodiversity, soil protection, shade and climate resilience.

This matters because habitat does not always need to exist as one large block. Continuous or strategically placed vegetation can provide shelter, food and movement routes for some species while also improving conditions for people living near the corridor.

Planting numbers are not enough

A biodiversity corridor should not be judged only by the number of saplings placed in the ground. Species choice, survival rates, canopy development, water availability and long-term maintenance determine whether a plantation becomes ecologically useful. Native species suited to local conditions should receive particular attention because a corridor must support local ecological relationships, not simply add greenery to a map.

Maintenance is therefore as important as plantation. A corridor that loses most of its trees after one or two seasons cannot deliver the habitat, shade or climate benefits promised at launch. Public reporting should include survival rates and replacement needs, not only planting totals.

Use wildlife data to decide where corridors matter most

Punjab’s Wildlife Census was designed to create a province-wide scientific baseline, map wildlife and habitats through GIS, identify biodiversity hotspots and assess threats such as habitat loss and environmental degradation. That information can make linear plantation more strategic. Instead of treating every canal bank or railway edge identically, planners can identify locations where vegetation could connect protected areas, wetlands or other important habitats.

The province already maintains wildlife sanctuaries in different ecological regions, including Chashma Barrage in Mianwali and Changa Manga Plantation in Kasur. Linear corridors cannot replace these protected sites, but they can complement them by improving ecological connections across the wider landscape.

Build a network, not isolated plantation drives

Punjab’s advantage is that much of the physical network already exists. The next step is to manage selected stretches for both infrastructure and ecology. That requires coordination among forest managers, irrigation authorities, railway managers, local governments and communities responsible for land beside these corridors.

Success should be measured through survival, habitat quality and evidence of wildlife use over time. If plantation planning is guided by census data and followed by long-term maintenance, ordinary infrastructure can perform a second function. A canal bank can move water and support habitat. A railway corridor can carry transport while helping connect fragments of nature. Punjab can turn linear plantation from a tree-counting exercise into landscape-scale biodiversity planning. That would make biodiversity outcomes easier to compare across districts and projects annually.