Then, two water table
levels were taken into account for the calculations.
Soil C[O.sub.2] concentrations, and hence emission rates, were influenced by the interaction between soil water content and water table
depth, as shown by monitoring during a period of high soil temperature (mean 27.3[degrees]C, Fig.
The water tables
in this area have mostly stabilized since 2008, though some wells continue to drop.
Indiscriminate exploitation of groundwater during drought periods will lead to a lowering of water tables
beyond replenish able limits.
The challenge of the confined work area coupled with the changing water table
required the crew to drill short and deep bores.
Three outlets at the bottom connected to Tygon tubing regulated the water table
level in each column.
For CWT1, the water table
control levels in different stages were selected based on previous studies on increasing rice yields in paddy fields of Southeast China .
Even though lowering water table
is likely to accelerate nitrogen cycling, it is, however, difficult to predict the change in concentration of certain nitrogen compounds since different processes of N cycle are functioning simultaneously.
He added that farmers have drilled 21m deep and are drawing large quantities of underground water out, and water tables
are decreasing at an accelerating rate in Punjab, Haryana, Rajasthan, Gujarat and Tamil Nadu.
While over- exploitation is leading to a fall in water table
, the root cause of pollution of groundwater, according to Gupta, is lack of adequate capacity to treat waste water generated in cities.
He says: "At this time of year we don't see a reduction in the water table
level even after reasonably dry days.
An overnight downpour left areas of standing water around the course yesterday and added to the already high water table
level, which could particularly affect some of the course's 206 bunkers when play gets under way this morning.