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- Increasing Soil Erosion Threatens Western Ghats Biodiversity
Increasing Soil Erosion Threatens Western Ghats Biodiversity
Recently, a study by IIT Bombay reveals a staggering 94% increase in soil erosion in the Western Ghats Region (WGR) from 1990 to 2020, posing a severe threat to the biodiversity hotspot.
Key Points
- Tamil Nadu's Disturbing Trend: Tamil Nadu experienced the highest soil loss rate at 121%, indicating the worst-case scenario among the Western Ghats states.
- Unique Landscape under Threat: The WGR, a UNESCO World Heritage Site and biodiversity hotspot, faces challenges due to unsustainable and unplanned activities, as highlighted in the study.
- Remote Sensing Data for Assessment: The study, a first-of-its-kind, utilized remote sensing data to quantify long-term soil losses, confirming a progressive increase in erosion rates and alarming state-wise trends.
- Net Increase of 94%: The figures show a net increase of 94% in soil erosion, emphasizing the detrimental impact on the region's globally significant biodiversity.
- State-Wise Soil Loss Rates: Tamil Nadu recorded the highest soil loss rate (121%), while Kerala and Karnataka witnessed increases at 90% and 56%, respectively.
- Methodology: Universal Soil Loss Equation (USLE): The researchers employed the USLE method, considering factors such as rainfall, topography, soil erodibility, land cover management, and conservation practices, providing a novel assessment at the scale of the WGR.
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