SALT PAN LANDS (Syllabus: GS Paper 3 – Env and Eco)

Context: The controversy surrounding Mumbai's salt pans has intensified, raising questions about their significance for the city's ecology and development.

Salt Pan Lands

• About: It is a naturally forming expanse covered with salt and other minerals. It occurs due to the evaporation of water in a pond/lake/river.
• Found: In coastal areas, when a water body dries up, a vast expanse of land surfaces. This land is covered with a layer of sea salt, minerals and other remnants and thus, referred to as salt pan land. 

oIn Mumbai, 5,378 acres of land have been designated as salt pan lands, an area approximately nine times the size of the Dharavi slum.

• Salt Pan Lands Nationwide: Nationally, approximately 60,000 acres of land have been designated as salt pan lands, spread across states like Maharashtra, Andhra Pradesh, Tamil Nadu, Odisha, Gujarat, and Karnataka.
• Largest Salt Pan Areas by State: Andhra Pradesh has the largest salt pan area, followed by Tamil Nadu, and Maharashtra.

Risk to Mumbai's Salt Pan Lands

• Salt pan lands in Mumbai are highly coveted due to their status as some of the last remaining "undeveloped" land parcels, protected by the Ministry of Environment and Forests under Coastal Regulation Zone (CRZ) norms.
• Government Interest in Salt Pan Lands: State governments, however, have sought to acquire these lands from the Centre for various development projects, such as low-cost housing for Mumbai’s slum-dwellers.
• Slum-Free Mumbai Initiative: Former Chief Minister's plan aimed to create a "slum-free Mumbai," with salt pan lands being considered for affordable housing projects to aid slum rehabilitation.

Why do Salt Pan Matter?

• Prevent flooding: Salt pans are located in low-lying regions, which naturally accumulate rainwater and water from Thane creek, preventing flooding.
• Water conservation: Serve as natural reservoirs that collect excess water.