The hydrological effects of different drainage systems were investigated as a pilot study in 4.5ha of paddy fields of Sari Agricultural Sciences and Natural Resources University, located at Mazandaran province, Northern Iran (36.3°N, 53.04°E), during two successive growing seasons of rice and...

Punjab faces a sever problem of declining water tables by as much as 10 – 15m in most parts. The paper focuses on groundwater behavior in various parts (Blocks) of the Punjab in categories of low to high rainfall regions, saline to sweet groundwater zones, scanty to extensive canal water...