Article 3: El Niño calls for wider monitoring of ecological stress
Why in news: India faces a potentially dry post-monsoon period after deficient monsoon rainfall, increasing ecological stress. Scientists are calling for real-time, ecosystem-level monitoring to identify vulnerable regions and improve climate resilience.
Key Details
- Rainfall deficit: The southwest monsoon recorded a 12.6% shortfall, raising concerns about water availability and ecosystem health.
- El Niño impact: A stronger El Niño could intensify dryness and place additional pressure on agriculture, forests, wetlands and marine ecosystems.
- Local vulnerability: Ecosystems respond differently depending on soil moisture, groundwater, vegetation and human pressure, making local-level monitoring important.
- Technology + field data: Satellite observations should be combined with ground-level information on soil moisture, vegetation, wildlife and water levels.
- Integrated monitoring: A coordinated network involving government agencies, researchers, universities and citizen groups can improve early detection of ecological stress.
Emerging Climate Challenge
- India has improved its ability to forecast cyclones and extreme weather events.
- The India Meteorological Department (IMD) provides alerts for events such as heavy rainfall and heat waves.
- India is entering a potentially difficult post-monsoon period after a 12.6% rainfall deficit during the southwest monsoon.
- The IMD expects very dry conditions across much of the country in the remaining months of the year.
- A strengthening El Niño could increase stress on farms, forests, wetlands and rivers.
Importance of Local Ecological Conditions
- The impact of drought can vary between ecosystems even when they experience similar rainfall deficits.
- Factors such as soil moisture, vegetation, groundwater and human pressure determine ecosystem resilience.
- Wetlands may also differ in their ability to withstand prolonged dry periods.
- A strong El Niño may push already stressed ecosystems beyond ecological thresholds.
- Micro-monitoring can identify vulnerable ecosystems and help direct limited resources towards them.
Need for Field-Level Monitoring
- Satellite observations have greatly improved weather forecasting and disaster management.
- However, satellite data need to be complemented by ground-level observations.
- Monitoring soil moisture, vegetation stress and animal movement can help detect unusually dry forest areas.
- Early detection can help reduce the risk of forest fires and ecological damage.
- Monitoring coral reef thermal stress can provide information about marine ecosystem health and coastal vulnerability.
Himalayan Ecosystems and Glacial Lakes
- Uttarakhand’s real-time monitoring of glacial lakes is an important example of field-level ecological monitoring.
- At Vasundhara Tal, sensors are being used to monitor:
- Water levels
- Snow depth
- Other physical changes in the glacial lake
- These observations can be linked with early-warning systems.
- Warmer winters, changing western disturbances and declining snow cover are altering the Himalayan moisture cycle.
- These changes can increase forest-fire vulnerability before spring.
Need for an Integrated Monitoring Network
- Around 200 ecologists recently called for an emergency ecosystem-wide monitoring network.
- Ecological monitoring in India is currently spread across research institutions, government departments, universities and citizen groups.
- Better coordination among these institutions can create a unified ecological monitoring system.
- Such a system can identify both ecosystem vulnerability and resilience.
- Strengthening ecological monitoring will help India respond not only to El Niño-related stress but also to longer-term climate variability.
Conclusion
Climate change affects ecosystems differently depending on their local ecological conditions and existing stress levels. India therefore needs monitoring systems that combine satellite technology with continuous field observations. An integrated network can identify vulnerable ecosystems before they cross critical thresholds, guide limited conservation resources and improve preparedness. Such evidence-based ecological monitoring will strengthen India’s long-term climate resilience.
Descriptive question:
Why is ecosystem-level monitoring important for climate adaptation in India? Discuss the role of technology, field observations and institutional coordination. (160 words, 10 marks)
Source: The Indian Express