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More brick structures, important features unearthed at Keeladi archaeological site in Tamil Nadu

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Ecology Impact

The excavation site is situated in the Vaigai River basin, a crucial ecological zone in Tamil Nadu. Large-scale excavations must balance archaeological discovery with the preservation of local soil integrity, agricultural land (primarily coconut groves), and the prevention of local land degradation under the Environment (Protection) Act, 1986.

Science & Tech Angle

The excavation relies on advanced scientific dating techniques, specifically Radiocarbon (C-14) dating of organic materials, to establish the chronological timeline of the Sangam era. Additionally, the analysis of soil sediments and microfossils (such as pollen and phytoliths) helps reconstruct the historical vegetation and paleoclimate of the region.

Climate Change Link

The discovery of advanced water management systems, including terracotta pipelines and closed drainage systems, provides critical insights into paleoclimate adaptation during the Sangam era. Studying these ancient hydraulic structures helps researchers understand how historical societies adapted to monsoon variability and prolonged dry spells in the semi-arid region of southern India.

Sustainable Development

The findings align with SDG 6 (Clean Water and Sanitation) and SDG 11 (Sustainable Cities and Communities) by demonstrating ancient, resilient urban planning and closed drainage systems. These historical water management practices offer valuable lessons for designing modern climate-resilient urban infrastructure.

International Frameworks

UNESCO World Heritage Convention (1972)
Provides the global framework for identifying, protecting, and preserving cultural and natural heritage sites of outstanding universal value, which is highly relevant to the long-term preservation and international recognition of the Keeladi archaeological site [2.1.3].

Sources consulted

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