Protective Irrigation for Climate Resilience

A protective irrigation policy shift is essential as India’s agriculture faces monsoon variability, making irrigation a critical climate risk buffer.

About Protective Irrigation

Meaning: It is a water management approach that provides limited irrigation during critical crop stages to safeguard yields against rainfall variability.
Objective: To act as a climate-risk buffer, ensuring minimum crop stability and productivity under drought or monsoon uncertainty.

Current Facts and Data

Irrigated Coverage: ~80 million ha (48% of net sown area); remaining largely rain-fed.
Sources of Irrigation: Groundwater ~60–65%, Canal ~25–30%, others include tanks, lift irrigation, and rainwater harvesting.
Regional Imbalance: High irrigation coverage in Punjab, Haryana, Uttar Pradesh, and low in Eastern and North-Eastern India.
Micro irrigation Growth: ~10 million ha 2022–23 up from ~7.5 million ha in 2015–16.

Need for Protective Irrigation

Monsoon Variability: India has witnessed a 6% decline in monsoon rainfall since 1951, with increasing erratic distribution and climate uncertainty.
Rising Dry Spells: Dry spells have increased by nearly 27% (1981–2011 vs 1951–1980), severely impacting major agricultural regions like Central India and Marathwada.
Regional Imbalance: States such as Maharashtra, Gujarat, Assam, and Kerala, as well as parts of South India, face recurring drought stress despite normal national rainfall.
Extreme Events: Events such as the driest August in a century (2023) highlight the fragility of rainfed farming systems and the vulnerability of crops.

Protective Irrigation Framework

Local Governance: Maharashtra’s Water User Associations in Krishna and Godavari basins have improved equitable canal water distribution in drought-prone Marathwada.
Distributed Infrastructure: Jal Shakti Abhiyan (2019–present) led to construction of thousands of check dams, farm ponds, and recharge structures in water-stressed districts.
Canal Modernisation: Gujarat’s Narmada Canal network uses pressurised pipeline systems and micro-irrigation, significantly reducing conveyance losses and improving efficiency.
Precision Irrigation: ISRO’s satellite-based soil moisture and IMD’s agromet advisories help farmers in states like Karnataka and Maharashtra plan crop irrigation.
Institutional Capacity: Tamil Nadu’s Village-Level Water Management Committees and trained field hydrologists support local water budgeting and drought planning.

Government Initiatives

Pradhan Mantri Krishi Sinchayee Yojana (PMKSY): Aims to expand irrigation coverage and improve water use efficiency through “more crop per drop”.
Jal Shakti Abhiyan: Focuses on water conservation through rainwater harvesting, rejuvenation of water bodies, and afforestation.
Atal Bhujal Yojana: Encourages community-led sustainable groundwater management in over-exploited and water-stressed areas.
National Mission on Sustainable Agriculture (NMSA): Promotes climate-resilient farming practices and efficient water use under NAPCC.

Financial & Governance Challenges

Low Funding: Despite ~80 million ha of irrigated area, inadequate O&M spending results in efficiency losses in canals, such as Bihar’s Arrah Canal.
Soft Infrastructure Deficit: Weak farmer institutions and training persist despite PMKSY’s expansion of micro-irrigation to ~95 lakh ha.
Governance Fragmentation: Multi-agency control and 60–65% groundwater dependence create a regional imbalance between North and Eastern India.
Institutional Gaps: Declining canal share (~22–30%) highlights weak maintenance and an overreliance on capital projects rather than upkeep.

Path to Water Resilience

Policy Reorientation: Shift irrigation strategy from “area expansion” to “risk management” to prioritise crop protection during dry spells.
Institutional Strengthening: Empower Water User Associations and Panchayats with financial and technical autonomy for decentralised water governance.
Integrated Planning: Develop unified irrigation systems that integrate rainfall, groundwater, and soil moisture data to optimise water use.
Climate Adaptation: Link irrigation to climate forecasting, drought early-warning systems, and adaptive cropping patterns to build resilience.

“Water is not just a resource but a lifeline of climate resilience.” India’s shift towards protective irrigation must integrate efficiency, equity, and innovation to secure sustainable agriculture and climate-adaptive rural growth.

Reference: Down To Earth

PMF IAS Pathfinder for Mains – Question 675

Q. From irrigation expansion to climate buffering, India’s water governance is undergoing a critical shift towards protective irrigation in response to climate variability. Discuss its significance in strengthening agricultural resilience and the key constraints in its implementation. (250 Words) (15 Marks)

Approach

Introduction: Write a brief introduction about the protective irrigation.
Body: Write the significance of protective irrigation in strengthening agricultural resilience, the key constraints in its implementation, and the way forward.