Hydraulic Capacity of Control Devices for Water Table Management Systems

1990 ◽  
Vol 6 (6) ◽  
pp. 745-750 ◽  
Author(s):  
D. L. Thomas ◽  
M. C. Smith ◽  
A. Shirmohammadi ◽  
C. D. Perry
Keyword(s):  
Water Table ◽  
Management Systems ◽  
Water Table Management ◽  
Control Devices

SIMULATING NITROGEN DYNAMICS UNDER WATER TABLE MANAGEMENT SYSTEMS WITH DRAINMOD-N

1999 ◽  
Vol 42 (4) ◽  
pp. 965-974 ◽  
Author(s):  
C. A. Madramootoo ◽  
J. W. Kaluli ◽  
G. T. Dodds
Keyword(s):  
Water Table ◽  
Nitrogen Dynamics ◽  
Management Systems ◽  
Water Table Management

Economical design of water table management systems in humid areas

1994 ◽  
Vol 10 (3) ◽  
pp. 229-244 ◽  
Author(s):  
Shiv O. Prasher ◽  
S.F. Barrington ◽  
Asgar M. Darbary
Keyword(s):  
Water Table ◽  
Management Systems ◽  
Economical Design ◽  
Water Table Management

Reducing Nitrate Loss in Tile Drainage Water with Cover Crops and Water-Table Management Systems

2014 ◽  
Vol 43 (2) ◽  
pp. 587-598 ◽  
Author(s):  
C. F. Drury ◽  
C. S. Tan ◽  
T. W. Welacky ◽  
W. D. Reynolds ◽  
T. Q. Zhang ◽  
...  
Keyword(s):  
Water Table ◽  
Cover Crops ◽  
Drainage Water ◽  
Tile Drainage ◽  
Management Systems ◽  
Nitrate Loss ◽  
Water Table Management

scholarly journals Temporal and Local Heterogeneities of Water Table Depth under Different Agricultural Water Management Conditions

Water ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2148
Author(s):  
Jonathan A. Lafond ◽  
Silvio J. Gumiere ◽  
Virginie Vanlandeghem ◽  
Jacques Gallichand ◽  
Alain N. Rousseau ◽  
...  
Keyword(s):  
Water Management ◽  
Water Table ◽  
Cropping Systems ◽  
Irrigation Management ◽  
Sprinkler Irrigation ◽  
Water Table Depth ◽  
Management Systems ◽  
Integrated Water Management ◽  
Growing Seasons ◽  
Good Drainage

Integrated water management has become a priority for cropping systems where subirrigation is possible. Compared to conventional sprinkler irrigation, the controlling water table can lead to a substantial increase in yield and water use efficiency with less pumping energy requirements. Knowing the spatiotemporal distribution of water table depth (WTD) and soil properties should help perform intelligent, integrated water management. Observation wells were installed in cranberry fields with different water management systems: Bottom, with good drainage and controlled WTD management; Surface, with good drainage and sprinkler irrigation management; Natural, without drainage, or with imperfectly drained and conventional sprinkler irrigation. During the 2017–2020 growing seasons, WTD was monitored on an hourly basis, while precipitation was measured at each site. Multi-frequential periodogram analysis revealed a dominant periodic component of 40 days each year in WTD fluctuations for the Bottom and Surface systems; for the Natural system, periodicity was heterogeneous and ranged from 2 to 6 weeks. Temporal cross correlations with precipitation show that for almost all the sites, there is a 3 to 9 h lag before WTD rises; one exception is a subirrigation site. These results indicate that automatic water table management based on continuously updated knowledge could contribute to integrated water management systems, by using precipitation-based models to predict WTD.

LINKFLOW, A WATER FLOW COMPUTER MODEL FOR WATER TABLE MANAGEMENT: PART 3. MODEL APPLICATION

1997 ◽  
Vol 40 (6) ◽  
pp. 1543-1547 ◽  
Author(s):  
P. L. Havard ◽  
S. O. Prasher ◽  
R. B. Bonnell ◽  
A. Madani
Keyword(s):  
Water Flow ◽  
Water Table ◽  
Computer Model ◽  
Model Application ◽  
Water Table Management

scholarly journals Water Table Management Reduces Tile Nitrate Loss in Continuous Corn and in a Soybean-Corn Rotation

2001 ◽  
Vol 1 ◽  
pp. 163-169 ◽  
Author(s):  
Craig F. Drury ◽  
Chin S. Tan ◽  
John D. Gaynor ◽  
John W. Daniel Reynolds ◽  
Thomas W. Welacky ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Table ◽  
Nitrate Concentration ◽  
Tile Drainage ◽  
N Fertilizer ◽  
Phase 2 ◽  
Nitrate Loss ◽  
Continuous Corn ◽  
Water Table Management ◽  
Drinking Water Guideline

Water table management systems can be designed to alleviate soil water excesses and deficits, as well as reduce nitrate leaching losses in tile discharge. With this in mind, a standard tile drainage (DR) system was compared over 8 years (1991 to 1999) to a controlled tile drainage/subirrigation (CDS) system on a low-slope (0.05 to 0.1%) Brookston clay loam soil (Typic Argiaquoll) in southwestern Ontario, Canada. In the CDS system, tile discharge was controlled to prevent excessive drainage, and water was pumped back up the tile lines (subirrigation) to replenish the crop root zone during water deficit periods. In the first phase of the study (1991 to 1994), continuous corn (Zea mays, L.) was grown with annual nitrogen (N) fertilizer inputs as per local soil test recommendations. In the second phase (1995 to 1999), a soybean (Glycine max L., Merr.)-corn rotation was used with N fertilizer added only during the two corn years. In Phase 1 when continuous corn was grown, CDS reduced total tile discharge by 26% and total nitrate loss in tile discharge by 55%, compared to DR. In addition, the 4-year flow weighted mean (FWM) nitrate concentration in tile discharge exceeded the Canadian drinking water guideline (10 mg N l–1) under DR (11.4 mg N l–1), but not under CDS (7.0 mg N l–1). In Phase 2 during the soybean-corn rotation, CDS reduced total tile discharge by 38% and total nitrate loss in tile discharge by 66%, relative to DR. The 4-year FWM nitrate concentration during Phase 2 in tile discharge was below the drinking water guideline for both DR (7.3 mg N l–1) and CDS (4.0 mg N l–1). During both phases of the experiment, the CDS treatment caused only minor increases in nitrate loss in surface runoff relative to DR. Hence CDS decreased FWM nitrate concentrations, total drainage water loss, and total nitrate loss in tile discharge relative to DR. In addition, soybean-corn rotation reduced FWM nitrate concentrations and total nitrate loss in tile discharge relative to continuous corn. CDS and crop rotations with reduced N fertilizer inputs can thus improve the quality of tile discharge water substantially.

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