scholarly journals ESTIMATIVA DE FLUXO DE DRENAGEM E ALTURA DE LENÇOL FREÁTICO EM SOLOS DE TEXTURAS DISTINTAS

Irriga ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 70 ◽  
Author(s):  
Pedro Ramualyson Fernandes Sampaio ◽  
Eder Duarte Fanaya Junior ◽  
José Leôncio de Almeida Silva ◽  
Jarbas Honorio de Miranda ◽  
Sergio Nascimento Duarte
Keyword(s):  
Zea Mays ◽  
Water Table ◽  
Drainage System ◽  
Water Table Depth ◽  
Annual Rainfall ◽  
Silty Clay ◽  
Drainage Flow ◽  
Initial Water ◽  
Drain Spacing ◽  
Drain Flow

ESTIMATIVA DE FLUXO DE DRENAGEM E ALTURA DE LENÇOL FREÁTICO EM SOLOS DE TEXTURAS DISTINTAS  PEDRO RAMUALYSON FERNANDES SAMPAIO1; EDER DUARTE FANAYA JÚNIOR1; JOSÉ LEÔNCIO DE ALMEIDA SILVA2; JARBAS HONORIO DE MIRANDA3 E SERGIO NASCIMENTO DUARTE3 1Engenheiro Agrônomo, Doutorando, Escola Superior de Agricultura “Luiz de Queiroz”/ESALQ-USP, Programa de Pós-Graduação em Engenharia de Sistemas Agrícolas, Av. Pádua Dias, 11 - São Dimas, 13418-900, Piracicaba - SP, Brasil, [email protected]; [email protected] Agrônomo, Doutorando, Universidade Federal de Viçosa/UFV, Programa de Pós-Graduação em Engenharia Agrícola, Av. Peter Henry Rolfs, s/n, Campus Universitário, Viçosa – MG, CEP: 36570-900, Brasil, [email protected] Agrônomo, Doutor, Professor Associado, Escola Superior de Agricultura “Luiz de Queiroz”/ESALQ-USP, Programa de Pós-Graduação em Engenharia de Sistemas Agrícolas, Av. Pádua Dias, 11 - São Dimas, 13418-900, Piracicaba - SP, Brasil, [email protected]; [email protected]  1 RESUMO O excesso de água no solo, devido aos altos níveis estacionais ou periódicos do lençol freático, tem-se constituído no principal risco para limitar a produtividade das culturas, e a sua profundidade influi indiretamente no crescimento e no desenvolvimento vegetal, influenciando às condições de umidade do perfil, de aeração e propriedades térmicas do solo. O presente trabalho teve como objetivo estudar o comportamento do lençol freático e o fluxo de drenos, em cinco anos extremos, que apresentam baixa, média e elevada pluviosidade anual, na cidade de Piracicaba-SP. O estudo foi realizado utilizando o software de Sistema de Drenagem - SISDRENA. Foram avaliados uma série temporal de cinco anos, com pluviosidade média anual abaixo, próxima e acima da média histórica para a cidade de Piracicaba, SP, Brasil. A partir destes anos, realizou-se a estimativa da altura do lençol freático e do fluxo de drenagem para cada um desses períodos, em cada tipo de solo estudado, com texturas Franco-argilosa, Argilosa e Franco-argilo-Siltosa. Foram realizadas simulações com diferentes espaçamentos entre drenos, variando de 10 a 100 m, a uma altura inicial de 0,55 m, para a cultura do milho (Zea mays). Em solos com menor coeficiente de drenagem, ocorre a diminuição do fluxo de drenagem a partir do espaçamento de 20 m. Em períodos chuvosos, com elevada pluviosidade anual, ocorreu uma maior altura do lençol freático para os três tipos de texturas de solos estudados. Palavras-chave: Irrigação; Sisdrena; Infiltração.  P. R. F. SAMPAIO1; E. D. FANAYA JÚNIOR1; J. L. DE A. SILVA2; J. H. DE MIRANDA3; S. N. DUARTE3ESTIMATING DRAINAGE FLOW AND WATER TABLE DEPTH FOR YEARS WITH LOW MEDIUM AND HIGH RAINFALL    2 ABSTRACT Excessive water in the soil, due to seasonally or periodically high water table levels, is often the main factor limiting crop yield. Water table depth can indirectly affect plant growth and development, due to adverse moisture, aeration soil and thermal conditions in the soil profile. The aim of this study was to evaluate the water table depth and the drain flow for five year periods with low, medium and high annual rainfall. The study was conducted using the Drainage System software - SISDRENA. Water table depth and drainage flow were simulated in three soils (Franco-clay, clay and Franco-silty-clay) for each one of these periods. Simulations were performed for maize (Zea mays), with drain spacing ranging from 10 to 100 m and an initial water table height of 0.55 m. In soils with lower drainage coefficient, there was decreased drain flow when the drain spacing exceeded 20m. During rainy periods, with a high annual rainfall rate, the water table was elevated in all three soil types. Keywords: Irrigation; Sisdrena; Infiltration.

scholarly journals Some properties of Dagan’s method for drain spacing determination in marshy - gley soil

2003 ◽  
Vol 48 (1) ◽  
pp. 69-75 ◽  
Author(s):  
Nevenka Djurovic ◽  
Ruzica Stricevic
Keyword(s):  
Steady State ◽  
Linear Function ◽  
Water Flow ◽  
Water Table ◽  
Drainage System ◽  
Water Table Depth ◽  
Flow Conditions ◽  
Drain Spacing ◽  
State Water ◽  
Dry Out

Dagan?s method as well as Kirkham?s one belong to the group of methods for drain spacing determination in steady state water flow conditions. Both methods are based on the assumption that drainage spacing (L) is linear function of water table depth and drainage discharge (h/q). The only difference can be distinguished in the values of coefficients. To dry out eugley type of soil, drain spacing is better determined by Dagan?s method in all treatments, as compared with Kirkham?s one. Advantage of this method is especially marked on the drainage system with narrower drain spacing.

EFFECT OF SOIL WATER STATUS AND STRENGTH ON TRAFFICABILITY

1979 ◽  
Vol 59 (3) ◽  
pp. 313-324 ◽  
Author(s):  
C. L. PAUL ◽  
J. DE VRIES
Keyword(s):  
Soil Water ◽  
Water Table ◽  
Structural Damage ◽  
Water Status ◽  
Water Table Depth ◽  
Silty Clay ◽  
Clay Loam ◽  
Silty Clay Loam ◽  
Soil Water Tension ◽  
Farm Vehicles

Trafficability tests with typical farm vehicles were carried out on three lowland fields at various degrees of wetness. Structural damage after the first and third passes was assessed in terms of bulk density, aeration porosity, pore-size distribution and rut depth. These indices could not be used per se as criteria for trafficable conditions because of lack of information concerning their relationship to plant growth. Instead, a trafficability criterion oriented toward traction efficiency was established by determining for each soil the relationship between its strength (assessed with a cone penetrometer) and traction efficiency measured by wheelslip. A critical value of strength for trafficability was inferred from this relationship. This was then used to obtain soil water tension limits for trafficability from known relations between tension and strength. Soil strength was found to be linearly dependent upon water table depth in spring when evapotranspiration was small and when the water table depth was less than 80 cm. Consideration of these relationships led to the establishment of critical water table limits for trafficability. These were 53, 45, and 60 cm for Lumbum muck, Hallart silty clay loam (SiCL) (grassland), and Hallart silty clay loam (cultivated), respectively.

scholarly journals Calibration of DRAINMOD for prediction of water table depths and drain discharges under waterlogged Vertisols of Maharashtra, India

2019 ◽  
Vol 11 (3) ◽  
pp. 724-731
Author(s):  
Shrimant Rathod ◽  
Sudhir Dahiwalkar ◽  
Sunil Gorantiwar ◽  
Mukund Shinde
Keyword(s):  
Water Table ◽  
Agricultural Research ◽  
Drainage System ◽  
Subsurface Drainage ◽  
Design Parameters ◽  
Design System ◽  
Research Station ◽  
Drain Spacing ◽  
Drainage Design ◽  
Rainy Days

An estimation of optimal design parameters of subsurface drainage system through monitoring of water table depths and drain discharges are expensive in terms of time and money. The simulation modeling is an effective tool for estimation of drainage design parameters at less cost and short time. In view to this, calibration of DRAINMOD model for prediction of water table depths and drain discharges were conducted by installing subsurface drainage system with 40 m drain spacing and 1.0 m drain depth at Agricultural Research Station, Kasbe Digraj, Dist. Sangli (Maharashtra) during 2012-13 to 2013-14. The field data on water table depth and drain discharge were used for calibration of DRAINMOD model. The input data files on climatic, soil, crop and drainage design system parameters were attached to DRAINMOD model and calibrated successfully. It is found that both observed and simulated water table depths and drain discharges showed a fluctuating trend and predicted both water table depths and drain discharges closely with the observed values during frequent rainy days and following the rainy days. The DRAINMOD model reliably predicted water table depths with a goodness of fit (R2 = 0.97), MAE (12.23 cm), RMSE (15.49 cm) and CRM (0.05); drain discharges with R2 of  0.93, MAE of 0.095 mm day-1, RMSE of 0.1876 mm day-1and CRM of 0.04. Thus, the calibrated DRAINMOD model can be used to simulate the water table depths and drain discharges in semi-arid climatic conditions of Maharashtra and in turn to estimate and evaluate drain spacing and depth.

Estimating drain flow from measured water table depth in layered soils under free and controlled drainage

2018 ◽  
Vol 556 ◽  
pp. 339-348 ◽  
Author(s):  
Samaneh Saadat ◽  
Laura Bowling ◽  
Jane Frankenberger ◽  
Eileen Kladivko
Keyword(s):  
Water Table ◽  
Water Table Depth ◽  
Controlled Drainage ◽  
Layered Soils ◽  
Drain Flow ◽  
Measured Water

scholarly journals Some properties of Kirkham’s method for drain spacing determination in marshy - gley soil

2003 ◽  
Vol 48 (1) ◽  
pp. 59-67
Author(s):  
Nevenka Djurovic ◽  
Ruzica Stricevic
Keyword(s):  
Steady State ◽  
Ground Water ◽  
Water Flow ◽  
Water Table ◽  
Soil Type ◽  
Water Discharge ◽  
Water Table Depth ◽  
Drain Spacing ◽  
State Water ◽  
Drainage Field

The aim of this work is to present some peculiarity of Kirkham?s method applied in drain spacing determination in steady state water flow in eugley soil type. The analysis was based on data obtained by measuring water discharge from drains and water table depth. Measurements was carried out on drainage field with drain spacing of 10 m, 20 m and 30 m, representing drainage treatments I, II and III, respectively. The estimation of drain spacing is moved to lower value in all treatments. The results of analysis show meaningful limitation of method, especially in the treatments with wider drain spacing as well as in the cases of deeper ground water.

scholarly journals Interaction of soil water and groundwater during the freezing–thawing cycle: field observations and numerical modeling

2021 ◽  
Vol 25 (8) ◽  
pp. 4243-4257
Author(s):  
Hong-Yu Xie ◽  
Xiao-Wei Jiang ◽  
Shu-Cong Tan ◽  
Li Wan ◽  
Xu-Sheng Wang ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Water Content ◽  
Soil Water ◽  
Water Table ◽  
Groundwater Level ◽  
Water Table Depth ◽  
Field Observations ◽  
Initial Water ◽  
Groundwater Inflow ◽  
The Mean

Abstract. Freezing-induced groundwater-level decline is widely observed in regions with a shallow water table, but many existing studies on freezing-induced groundwater migration do not account for freezing-induced water-level fluctuations. Here, by combining detailed field observations of liquid soil water content and groundwater-level fluctuations at a site in the Ordos Plateau, China, and numerical modeling, we showed that the interaction of soil water and groundwater dynamics was controlled by wintertime atmospheric conditions and topographically driven lateral groundwater inflow. With an initial water table depth of 120 cm and a lateral groundwater inflow rate of 1.03 mm d−1, the observed freezing and thawing-induced fluctuations of soil water content and groundwater level are well reproduced. By calculating the budget of groundwater, the mean upward flux of freezing-induced groundwater loss is 1.46 mm d−1 for 93 d, while the mean flux of thawing-induced groundwater recharge is as high as 3.94 mm d−1 for 32 d. These results could be useful for local water resources management when encountering seasonally frozen soils and for future studies on two- or three-dimensional transient groundwater flow in semi-arid and seasonally frozen regions. By comparing models under a series of conditions, we found the magnitude of freezing-induced groundwater loss decreases with initial water table depth and increases with the rate of groundwater inflow. We also found a fixed-head lower boundary condition would overestimate freezing-induced groundwater migration when the water table depth is shallow. Therefore, an accurate characterization of freezing-induced water table decline is critical to quantifying the contribution of groundwater to hydrological and ecological processes in cold regions.

Effect of water-table management and nitrogen supply on yield, plant growth and water use of corn in undisturbed soil columns

1996 ◽  
Vol 76 (2) ◽  
pp. 229-235 ◽  
Author(s):  
C. S. Tan ◽  
C. F. Drury ◽  
J. D. Gaynor ◽  
I. van Wesenbeeck ◽  
M. Soultani
Keyword(s):  
Zea Mays ◽  
Stomatal Conductance ◽  
Plant Growth ◽  
Water Use ◽  
Water Table ◽  
Soil Surface ◽  
Water Table Depth ◽  
Grain Yields ◽  
Water Table Management ◽  
N Rates

The effect of three water-table depths (30, 60 and 80 cm below the soil surface) and four N rates (0, 45, 90 and 135 kg ha−1) on plant growth, yield and water use were evaluated for corn (Zea mays L.). Research was conducted in a greenhouse, using 36 undisturbed foil columns (20 cm i.d. and 90 cm length) collected with a Meta-Drill vibrating core sampler from a Fox sandy loam soil at Harrow Research Centre. Corn grown in the 80-cm water-table depth had the greatest degree of water stress, as indicated by low volumetric soil water content, low stomatal conductance and transpiration rates, and elevated soil-surface and leaf-surface temperatures. There was a substantial increase in plant dry weight and grain yields as the N rates increased from 0 to 135 kg ha−1 with the 30- and 60-cm water-table depths. Under our experimental conditions, maximum grain yields were obtained with a 60-cm water-table depth. Grain yields were significantly reduced with the 80-cm water-table depth. With this water-table depth, grain yield was also reduced by N addition. Key words: Water-table management, Zea mays, yield, stomatal conductance, leaf temperature

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