Table 1 Stress periods and the norms for segregation of groundwater recharge and abstraction from the lumped CGWB district-wise estimates.
From: Modelling water levels of northwestern India in response to improved irrigation use efficiency
Stress period | Month | Groundwater abstraction assigned | Groundwater recharge assigned |
|---|---|---|---|
1 | July–August | Total monsoon groundwater abstraction | Half of the monsoon recharge |
2 | September–October | Zero groundwater abstraction during the crop harvesting period | Half of the monsoon recharge (before crop harvesting) |
3 | November–December | Half of the total non-monsoon groundwater abstraction | One-third of the non-monsoon recharge |
4 | January–February | Half of the total non-monsoon groundwater abstraction | One-third of the non-monsoon recharge |
5 | March–April | Zero groundwater abstraction during the crop harvesting period | One-third of the non-monsoon recharge |
6 | May–June | Zero groundwater abstraction | No recharge |
