The Impact of Tea Plantations on Landslides and Ecosystems

 In July 2024, the Wayanad district of Kerala witnessed a massive landslide, resulting in significant loss of life. Unfortunately, this is not a new phenomenon. A look at history reveals multiple instances of landslides in the Western Ghats districts like Ooty and Wayanad.

A landslide is a mass movement of material, such as rock, earth, or debris, down a slope. They can occur suddenly or gradually over time. When the force of gravity acting on a slope exceeds the resisting forces, including friction and the internal strength of the rock, soil, or sediment, a landslide occurs.

Studies suggest that tree roots reinforce soil layers, anchor the soil to bedrock, and form buttresses against soil movement. Trees also reduce landslide risk by lowering soil moisture levels through interception, evaporation, and transpiration.

One of the reasons for the recent landslides is the expansion of tea plantations in these regions, leading to the destruction of forest trees. Tea plantations were introduced to India by the British due to favorable climatic conditions. This helped them achieve self-sufficiency in tea for the British living in India, reducing the need for imports from European countries. Later, seeing the favorable conditions and cheap labor, they expanded tea cultivation and started exporting from India, boosting their economy.

Tea plantations were introduced in Wayanad and Nilgiris by 1853. By 1859, there were 27 small and medium estates in Wayanad, with around 80 British planters focusing on developing these estates. More than 10,000 acres of land were converted into coffee plantations within two decades.

After the British left India, large landowners and corporate houses took over these plantations and continued tea cultivation, yielding good income. They expanded plantations further by clearing forest land.

Data shows that India's total tea exports during 2022-23 amounted to 228.40 million kg, worth US$ 793.78 million. During the financial year 2021-22, India exported 200.79 million kg of tea, worth US$ 726.82 million.

While tea cultivation has become a lucrative business, the increased destruction of forests has led to landslides and the loss of many lives. It has also affected the forest ecosystem and biodiversity. The question now is how quickly we can use technology to restore the ecosystem for a better today and tomorrow.

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