Evaluation of DRAINMOD by a Physical Model to Simulate the Performance of Subsurface Drainage at the Mid and End Season in Paddy Fields

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

MOMEN NEJAD ZAHRA; NAVABIAN MARYAM; ESMAEILI VARAKI MEHDI

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Journal of Soil and Water Research Year:2019 | Volume:50 | Issue:1 Page(s): 13-24

Download Full-Text

Persian Verion

View:

441

Download:

Cites:

Information Journal Paper

Title

Evaluation of DRAINMOD by a Physical Model to Simulate the Performance of Subsurface Drainage at the Mid and End Season in Paddy Fields

Author(s)

MOMEN NEJAD ZAHRA | NAVABIAN MARYAM | ESMAEILI VARAKI MEHDI | Issue Writer Certificate

Keywords

RiceQ3

Drainage water salinityQ1

Soil profiles salinityQ2

Solute transportQ2

Genetic algorithmQ2

Abstract

The complexity of drainage process in paddy fields and time consumption of field tests make simulation models to be used inevitably for assessing subsurface drainage systems performance. The objective of this study was to evaluate DRAINMOD model and the effects of drainage management of paddy fields on the salinity of drainage water. In this regard, a physical model with 3m in length, o. 6m width and 1m height was constructed and equipped with controlled drainage. The corrugated drainage pipe, covered with geotextile was laid at a depth of 70 cm in the box. The tank was filled with silty loam soil with the same density and layering as in the paddy fields. After Rice cultivation and during the experiment, the soil solutions were collected from the depths of 40, 50 and 70 cm and their TDS were measured in the laboratory. In order to evaluate the accuracy of DRIANMOD model for simulation of qualitative and quatitive subsurface drainage water, the Solute transport parameters including dispersivity, tortousity factor, molecular diffusion coefficient, precipitation limit and the hydraulic conductivity were obtained through minimizing differences between the observed and the estimated salt solusion and drainage volume using Genetic algorithm optimization method. The results showed that the model could simulate the performace of drainage system very well at before and after the midseason (NRMSE < 20%) and excellent at the mid and end season (NRMSE < 10 %). The TDS and drainage volume were estimated by average RMSE of 63. 27 mg/l and 0. 0145 cm3 respectively. The comparison of estimated and observed values showed a better performance for the model at the nonsubmerged conditions. The results of calibration and validation of model showed that the DRAINMOD-S model is capable to simulate the performance of subsurface drainage in paddy fields.

Cites

No record.

References

No record.

Cite

APA: Copy

MOMEN NEJAD, ZAHRA, NAVABIAN, MARYAM, & ESMAEILI VARAKI, MEHDI. (2019). Evaluation of DRAINMOD by a Physical Model to Simulate the Performance of Subsurface Drainage at the Mid and End Season in Paddy Fields. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, 50(1 ), 13-24. SID. https://sid.ir/paper/225569/en

Vancouver: Copy

MOMEN NEJAD ZAHRA, NAVABIAN MARYAM, ESMAEILI VARAKI MEHDI. Evaluation of DRAINMOD by a Physical Model to Simulate the Performance of Subsurface Drainage at the Mid and End Season in Paddy Fields. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH[Internet]. 2019;50(1 ):13-24. Available from: https://sid.ir/paper/225569/en

IEEE: Copy

ZAHRA MOMEN NEJAD, MARYAM NAVABIAN, and MEHDI ESMAEILI VARAKI, “Evaluation of DRAINMOD by a Physical Model to Simulate the Performance of Subsurface Drainage at the Mid and End Season in Paddy Fields,” IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, vol. 50, no. 1 , pp. 13–24, 2019, [Online]. Available: https://sid.ir/paper/225569/en

Related Journal Papers