Argument evidence · Tier 1

Normal/average system irrigation-water usage benchmark ~103.5 MAF.

E449 · CSS Evidence Bank v1

This card

The card What it proves Pairs with (3)In chains (4)

Normal/average system irrigation-water usage benchmark ~103.5 MAF.Pakistan Economic SurveySource named — not yet verified

Source

Pakistan Economic Survey — https://finance.gov.pk/survey/chapter_26/Complete_PES2025_26.pdf. Verified in source set / retroactive normalization pending.

What it proves

Baseline for judging annual surface-water availability.

Draft — not reviewed

What it does not prove: The 103.5 MAF figure is a benchmark of average system *usage* — water actually diverted into the canal network — not a measure of the renewable resource, of demand, or of what is sustainable; a year hitting 103.5 MAF is normal, not adequate. It also covers surface water at canal heads only, so it hides both groundwater pumping and the losses between the barrage and the farm gate.

Memory hook: 103.5 MAF → the historic norm of use, not the water the country needs

Rebuts the claim: "Pakistan's rivers already deliver over 100 MAF, so the problem is purely distribution" — the benchmark records what the system habitually withdraws, not what is available or sustainable.

Pairs with

Freshwater withdrawals relative to available resources: 98.1% (2023)UN SDG Pakistan profile Agriculture accounts for about 95% of Pakistan's freshwater withdrawals; inefficient agricultural water use was estimateWorld Bank Under a 3°C warming scenario, Pakistan's water demand could rise by more than 50% by 2047 while supply remains relativel (Projection to 2047)World Bank

In chains and maps

Water → agriculture → climate → food securityWater → agriculture → climate → food security Pakistan Water SecurityPopulation pressure → high withdrawals → agricultural dependence → climate variability → IWT uncertainty → food/economic/national-security risk Pakistan Food SecurityWater/climate/income shocks → agricultural instability + food prices → access/utilization problems → malnutrition → weak human capital → poverty Pakistan Development SystemPopulation + weak human capital + low investment + energy + export + fiscal + governance + climate constraints → mutually reinforcing development traps