Green buffer planning: designing the vegetated barrier between a plant and its neighbours.

A green buffer is a functional planting band designed to attenuate dust, noise and visual impact between a source and its surroundings. Landscaping is designed for appearance and use. The buffer's width, density, layering and species are all chosen for performance, which usually produces a very different planting from an ornamental scheme.

It depends on the project category, the site and, most often, on what the Environment Clearance or consent condition specifies for that unit. CPCB guidance sets expectations on green belt provision around industrial units, and clearance conditions frequently fix a width or an area percentage. The applicable condition governs, so it is read first.

By tolerance to the pollutants concerned, alongside local climatic suitability. The Air Pollution Tolerance Index is the common screening tool, it combines leaf biochemical parameters into a comparative tolerance score: and is used together with growth habit, canopy density, foliage persistence and local availability. Ornamental value is secondary.

The Air Pollution Tolerance Index is a composite index derived from leaf parameters (ascorbic acid, chlorophyll, leaf extract pH and relative water content) used to rank species by their tolerance to air pollution. It is widely used in India to shortlist species for industrial green belts, generally alongside a suitability assessment for the local site.

A dense, correctly layered belt intercepts coarse particulates and dust, attenuates noise, and screens the plant visually: measurable effects at the boundary. It is a mitigation measure at the periphery, not a substitute for source control such as stack treatment or dust suppression, and should be described accordingly.

Most industrial sites irrigate the belt from treated effluent or STP-treated water, which also helps meet reuse commitments in the clearance. The water source, quality and delivery system must be settled during planning, because a belt planned without an assured water source rarely survives its first summer.

Yes, and on a live plant it usually has to be: around construction sequencing, utility corridors and area handover. What matters is that the phasing is planned, so the sequence still delivers the committed width and density within the period the clearance condition allows.