M BHARAT KUMARChennai, Aug 1: The recent landslides in Wayanad, Kerala, have once again highlighted the urgent need for effective disaster management and preventive measures in vulnerable regions. As neighboring Tamil Nadu shares similar topographical and climatic conditions, the state must take proactive steps to mitigate the risk of such catastrophic events, particularly in its hilly districts like Nilgiris, Kodaikanal, and the Western Ghats.
Speaking to News Today, Krishnan, an environmentalist, said, Landslides are often triggered by a combination of factors, including heavy rainfall, deforestation, unregulated construction, and poor land management practices. In regions like Wayanad, where the terrain is steep and the soil is loose, excessive rainfall can quickly lead to landslides. The situation is exacerbated by human activities that disturb the natural stability of the slopes.
One of the most effective ways to prevent landslides is through afforestation. Planting deep-rooted trees and maintaining natural vegetation cover can significantly stabilize soil and reduce the risk of landslides. Tamil Naduâs forest department should initiate large-scale afforestation drives in vulnerable areas and promote soil conservation techniques like contour trenching and terracing, he said.
Unregulated construction on steep slopes is a major contributor to landslides. The state government should enforce strict building codes in hilly regions, ensuring that all construction activities are environmentally sustainable and do not destabilize the land. This includes prohibiting construction in high-risk zones and implementing rigorous environmental impact assessments (EIA) for new projects, he opines.
Implementing advanced early warning systems is crucial for minimizing the impact of landslides. Tamil Nadu can invest in technologies such as real-time rainfall monitoring, ground sensors, and satellite-based tracking systems to detect potential landslide threats. These systems can provide timely alerts to communities at risk, allowing for quick evacuations and reducing the potential loss of life and property, he winds up.
Educating local communities about the risks of landslides and the importance of environmental conservation is essential. The government, in collaboration with NGOs and local bodies, can conduct awareness campaigns and training programs to prepare residents for potential disasters. These programs should focus on teaching people how to recognize early signs of landslides, safe evacuation routes, and emergency response techniques, says Tajudeen, who runs an NGO.
Tamil Naduâs urban and rural planning authorities should integrate disaster risk reduction into their land use plans. This includes identifying landslide-prone areas and restricting development in these zones. Sustainable agricultural practices that prevent soil erosion and avoid the cultivation of unsuitable crops in vulnerable areas should also be promoted, he stated.
Existing infrastructure in hilly areas needs to be reinforced to withstand landslide impacts. This includes constructing retaining walls, improving drainage systems to prevent waterlogging, and maintaining roads and bridges to ensure they do not become vulnerable to landslide damage. The lessons from Wayanadâs landslides serve as a crucial reminder of the importance of preparedness and prevention. Tamil Nadu, with its own share of vulnerable regions, must adopt a holistic approach that combines environmental conservation, technological innovation, and community participation to effectively mitigate the risk of landslides. By doing so, the state can safeguard its natural resources, protect its citizens, and ensure sustainable development in its hilly regions, he added.