Groundwater depletion casts shadow over Kuruvai cultivation in Cauvery delta
Tiruchi, June 29
Growing concerns over rapidly depleting groundwater levels are dampening prospects for kuruvai cultivation across Tamil Nadu's Cauvery Delta, with farmers warning that the situation could worsen if monsoon rains fail to adequately recharge aquifers before the samba season.
The delay in releasing water from the Mettur Dam, traditionally opened on June 12 for irrigation, has forced most farmers dependent on Cauvery water to abandon kuruvai (summer-season paddy cultivation cycle) cultivation this year.
Only a limited number of farmers equipped with borewells have proceeded with cultivation, banking on groundwater reserves and the expectation of favourable monsoon rains.
However, even borewell-dependent farmers are facing mounting challenges.
Frequent power cuts and a sharp decline in groundwater levels across the Delta have significantly reduced the area brought under cultivation, making it unlikely that the region will achieve its target of 3.5 lakh acres under kuruvai this season.
A recent survey by the Water Resources Department (WRD) has painted a worrying picture. The study found that groundwater levels in all Delta districts recorded a steep decline during May, raising fears over the sustainability of irrigation during the crucial agricultural season.
Farmer leaders say the twin challenges of inadequate electricity supply and falling groundwater levels are making irrigation increasingly difficult.
According to Cauvery Farmers Protection Association president V. Dhanapalan, although Tamil Nadu has several lakh pump sets for various purposes, around 21 lakh borewells are used for agricultural irrigation, of which nearly 14 lakh functional pump sets are located in the Delta region.
He said farmers require at least eight hours of uninterrupted electricity to irrigate a single acre of farmland effectively. However, erratic power supply has made this nearly impossible, adding to the burden on cultivators already struggling with water scarcity.
While the India Meteorological Department (IMD) has forecast a favourable southwest monsoon, Dhanapalan cautioned that rainfall alone may not be enough to restore groundwater.
Traditionally, groundwater levels in the Delta improve only when the Cauvery and its distributaries flow at full capacity, allowing water to percolate and recharge aquifers.
He warned that unless groundwater is replenished soon, the Delta could face severe agricultural distress, with even the forthcoming samba cultivation coming under threat.
Farmers fear that continued depletion of groundwater could have long-term consequences for one of Tamil Nadu's most important rice-producing regions.
— IANS
Reader Comments
The disheartening reality of our water management. Delaying Mettur dam release is becoming an annual ritual, and farmers are left to gamble with borewells that are running dry. It's sad that even with a favourable monsoon forecast, we can't be optimistic because groundwater recharge needs the rivers to flow fully. The authorities must stop treating this as a seasonal problem and start planning for long-term aquifer recharge and alternate cropping patterns. 😔
As someone who grew up in Thanjavur, this news breaks my heart. Every summer, we'd see the paddy fields turn emerald green. Now, the wells are running empty before the season even starts. The farmers are the most resilient people I know, but they can't fight geography and policy neglect at the same time. The electricity situation is a farce — how can you expect farmers to pump water when the supply is erratic? We need a comprehensive water policy that includes better dam management and serious investment in solar-powered pumps.
It's alarming to see such a critical food-producing region facing these challenges. Having worked in agricultural development, I know that groundwater depletion doesn't happen overnight — it's the result of decades of over-extraction and poor policy. The situation in the Cauvery delta highlights a nationwide crisis that affects everyone from the farmer to the consumer. Let's hope the monsoon delivers, but more importantly, let's hope for better governance and sustainable water use. 🚱
I appreciate the IMD's positive monsoon forecast, but as Dhanapalan rightly points out, rainfall alone cannot save us. The delta's groundwater gets recharged only when the Cauvery flows in full glory. Infrastructure for rainwater harvesting and artificial recharge must be expanded aggressively. Also, can we please talk about why the Mettur dam release is delayed every year? Is it a water-sharing dispute or poor planning? Either way, the farmer pays the price.
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