Restoring lakes by going beyond quick fixes, Pg7

Key Highlights:

• Wetlands, including urban lakes, cover nearly 6% of the planet's surface and are vital for carbon sequestration, biodiversity, and climate regulation.
• Urban lakes are rapidly disappearing or becoming biologically dead due to unplanned urbanization, encroachment, and pollution from sewage and industrial effluents.
• Reports indicate significant shrinkage, with over 500 lakes lost in Jammu & Kashmir since 1967 and Hyderabad losing 61% of its lake area since 1979.
• India's increased tally of Ramsar Sites reflects high-level recognition, but local conservation efforts face challenges from ambiguous boundaries and encroachment.
• Government initiatives like Atal Mission for Rejuvenation and Urban Transformation (AMRUT), Jal Shakti Abhiyan, and Mission Amrit Sarovar exist but often have diluted on-the-ground impact.
• The Hyderabad Disaster Response and Asset Protection Agency (HYDRAA) in Telangana has successfully reclaimed encroached lakebeds and restored hydrological flows.

Urban Lake.jpg

Detailed Insights:

• Wetlands are highly productive ecosystems, often outperforming terrestrial forests in carbon storage per unit area.
• Rapid, unplanned urbanization leads to lakes being perceived as "vacant land" rather than critical ecological infrastructure, making them vulnerable to destruction.
• Deep-rooted institutional and public apathy contributes to lakes being used as dumping grounds for untreated sewage, industrial effluents, and solid waste.
• Exponential increases in land prices economically incentivize encroachment, transforming peri-urban lake catchments into prime real estate.
• Fragmented accountability, weak inter-departmental coordination, and a focus on beautification over ecological repair hinder genuine lake restoration.
• HYDRAA's efforts included desilting blocked feeder channels and restoring natural hydrological flows, significantly increasing the water spread of Nalla Cheruvu.
• Grassroots citizen movements in cities like Bengaluru and Hyderabad have also demonstrated success in reviving dying water bodies such as Puttenahalli and Jakkur.
• Effective long-term solutions require formal integration of water bodies into city planning, strict legal protection for lake boundaries, and unified, accountable governance.
• Institutionalizing citizen engagement within governance frameworks is crucial to ensure permanent local ownership and sustained conservation efforts.

Key Concepts Involved:

• Wetlands: Areas saturated with water, either permanently or seasonally, supporting distinctive ecosystems.
• Eutrophication: The process of excessive nutrient enrichment in a water body, leading to dense plant growth and oxygen depletion.
• Ramsar Sites: Wetlands designated as internationally important under the Ramsar Convention, an intergovernmental treaty for wetland conservation.
• Urban Heat Island Effect: A phenomenon where urban areas experience higher temperatures than surrounding rural areas due to human activities and altered land surfaces.