scholarly journals Five-Year Experimental Study on Effectiveness and Sustainability of a Dry Drainage System for Controlling Soil Salinity

Water ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 111 ◽  
Author(s):  
Changshu Wang ◽  
Jingwei Wu ◽  
Wenzhi Zeng ◽  
Yan Zhu ◽  
Jiesheng Huang
Keyword(s):  
Soil Salinity ◽  
Soil Column ◽  
Drainage System ◽  
Irrigation District ◽  
Soil Permeability ◽  
Ecological Value ◽  
Salinity Control ◽  
Excess Water ◽  
Salt Crust ◽  
To Receive

The dry drainage system (DDS) is an alternative technique for controlling salinization. To quantify its role in soil salinity control, a five-year field observation from 2007 to 2011 was completed in a 2900 ha experimental plot in Yonglian Experimental Station, Hetao Irrigation District, China. Results showed that the groundwater table depth in the fallow areas quickly responded to the lateral recharge from the surrounding croplands during irrigation events. The groundwater electrical conductivity (GEC) of fallow areas increased from 5 mS·cm−1 to 15 mS·cm−1, whereas the GEC below croplands produced small fluctuations. The analysis of water and salt balance showed that the excess water that moved to fallow was roughly four times that moved by an artificial drainage system and with 7.7 times the corresponding salt. The fallow areas act as a drainage repository to receive excess water and salt from surrounding irrigated croplands. Slight salt accumulation occurred in irrigated croplands and salts accumulated, with an accelerating trend over the final two years. The evaporation capability weakened, partly due to the salt crust in the topsoil, and the decrease in soil permeability in the soil column, which was almost impermeable to water. Using halophytes may be an effective method to remove salts that have accumulated in fallow areas, having great economic and ecological value. A DDS may be effective and sustainable in situations where the fallow areas can sustain an upward capillary flux from planted halophytes.

Soil salinity monitoring and detection of obstructed drainage pipes in the B-XII irrigation district (SW Spain) using electromagnetic induction sensing and inversion. 

2021 ◽  
Author(s):  
Mario Ramos ◽  
Mohhamad Farzamian ◽  
José Luis Gómez ◽  
Alfonso González ◽  
Benito Salvatierra ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Soil Salinity ◽  
Electromagnetic Induction ◽  
Drainage System ◽  
State Agency ◽  
Irrigation District ◽  
Sw Spain ◽  
Hard Soil ◽  
Moisture Conditions ◽  
And Inversion

<p>Inversion of electromagnetic induction (EMI) signals is increasingly used for monitoring soil salinity in irrigated fields. In the B-XII irrigation district (SW Spain) the build-up of high salt concentrations in the topsoil is often related with a deficient performance of the underlying drainage system resulting in higher-than-average soil moisture conditions and salinization. This work aims at using EMI sensing and inversion to identify and localize problems (<em>e.g</em>. obstruction) with the drainage system in a 12.5 ha irrigated field in the B-XII irrigation district. The identified salinity hotspots in the EMI images are further validated using remotely sensed NDVI data and detailed information obtained during the cleaning of the drainage system, in addition to hard soil data. This study shows that EMI sensing and inversion can pinpoint problems with the drainage system that result in salinity hotspots and identify areas where the drainage system should be cleaned or substituted.</p><p> </p><p>This work is funded by the Spanish State Agency for Research through grants PID2019-104136RR-C21 and PID2019-104136RR-C22 and by IFAPA/FEDER through grant AVA2019.018.</p>

On the effectiveness of dry drainage in soil salinity control

2009 ◽  
Vol 52 (11) ◽  
pp. 3328-3334 ◽  
Author(s):  
JingWei Wu ◽  
LiRong Zhao ◽  
JieSheng Huang ◽  
JinZhong Yang ◽  
Bernard Vincent ◽  
...  
Keyword(s):  
Soil Salinity ◽  
Salinity Control

Seepage through Earth Dams with Chimney Drain on Pervious Foundation

2012 ◽  
Vol 452-453 ◽  
pp. 538-542 ◽  
Author(s):  
Abdelkader Djehiche ◽  
Rekia Amieur ◽  
Mustafa Gafsi
Keyword(s):  
Experimental Study ◽  
Flow Rate ◽  
Drainage System ◽  
Earth Dam ◽  
Earth Dams ◽  
Drainage Systems ◽  
The Earth ◽  
Excess Water ◽  
Effective Drainage

This paper presents an experimental study of a homogenous earth dam. The work is focused to the search of solutions of problems encountered in the earth dams after their construction. One of the major problems is the choice and design of systems of drainage. The effective drainage system to prevent harmful accumulations of excess water is one of the most important roles of dams. Efficient drainage systems can improve the safety of earth dams. The paper presented herein reports the results obtained from the experimental study. Empiric relations have been obtained which can be help in the control of the flow rate in the chimney drain of the earth dams on pervious foundation, which can increase safety earth dams

scholarly journals Water Conservation Versus Soil Salinity Control

2013 ◽  
Vol 18 (6) ◽  
pp. 647-660 ◽  
Author(s):  
Alain Ayong Le Kama ◽  
Agnes Tomini
Keyword(s):  
Soil Salinity ◽  
Water Conservation ◽  
Salinity Control

scholarly journals A Heritage Agronomic Study as a Database for Monitoring the Soil Salinity of an Irrigated District in NE Spain

Agronomy ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 126
Author(s):  
Juan Herrero ◽  
Carmen Castañeda ◽  
Rosa Gómez-Báguena
Keyword(s):  
Soil Salinity ◽  
State Of The Art ◽  
Soil Sampling ◽  
Irrigation District ◽  
Sustainable Land Management ◽  
Irrigation Methods ◽  
Irrigated Area ◽  
Sampling Campaign ◽  
Salinity Data ◽  
Study Sites

This article presents and reviews the soil salinity data provided by a rescued vintage agronomic report on an irrigated area of 35,875 ha located in the center of the Ebro River basin, in the NE of mainland Spain. These data come from a soil sampling campaign conducted from May to the first half of July 1975 for the purpose of delineating saline and non-saline soils. The agronomic report was produced in response to demands from farmers to combat soil salinity, and represents the state of the art in those years for salinity studies. Our paper presents the scrubbed soil salinity data for this year, checking their consistency and locating the study sites. The main finding is the unearthing of this heritage report and the discussion of its soil salinity data. We show that the report supplies an assessment and a baseline for further soil salinity tracking by conducting new measurements either by direct soil sampling or by nondestructive techniques, providing an estimate of soil salinity at different locations. This task is feasible, as shown in our previously published articles involving nearby areas. A comparison of the salt amount in the soil over the years would provide a means to evaluate irrigation methods for sustainable land management. This comparison can be conducted simultaneously with analysis of other agricultural features described in the report for the irrigation district in 1975.

scholarly journals Modification of Conventional Drainage System Using Recharge Well

2019 ◽  
Vol 280 ◽  
pp. 04017
Author(s):  
Astuti Sri Amini Yuni ◽  
Anggraheni Dinia
Keyword(s):  
Water Level ◽  
Drainage System ◽  
Drainage Area ◽  
Free Flow ◽  
Soil Permeability ◽  
Height Difference ◽  
Time Of Concentration ◽  
Diameter Pipe ◽  
Runoff Discharge ◽  
Recharge Well

One of the popular recharge systems is a recharge well that directly receive rainwater from the roof of the house. In this study, recharge wells will be introduced and analyzed in a modification of conventional drainage. Area for this research was taken in Kimpulan Village, Sleman, Yogyakarta. Input discharge that enters the recharge well used free-flow formula through holes or pipes. The dimensions of recharge wells followed the Sunjoto’s formula, but with T is the time of concentration, not the duration of the dominant rainfall. The result of this study showed that recharge well reduced the maximum discharge and dimensions of the channel. The reduction depends on the diameter of the connecting pipe, the height difference of the water level, depth of groundwater and permeability of the soil in the area. If a diameter pipe of 20 cm and a height difference of 1 m are used, it reduced the runoff discharge more than 17.3%. For the study area, it was not feasible to build additional recharge wells, because it required a large number of wells, approximately 58 pieces, due to very small soil permeability of 3.5.10-5 m/s.

Reclamation of a saline/sodic soil by aquifer pumping, application of tillage and gypsum and reuse of saline groundwater

1987 ◽  
Vol 27 (3) ◽  
pp. 381 ◽  
Author(s):  
AH Mehanni
Keyword(s):  
Soil Salinity ◽  
Dry Matter ◽  
Irrigation Season ◽  
Soil Permeability ◽  
Sodic Soil ◽  
Winter Rainfall ◽  
Saline Groundwater ◽  
Rainfall Season ◽  
A Site ◽  
Piezometric Pressure

In the Goulburn Valley, at a site near Tongala, Vic., shallow perched watertables receded from 18 to 135 cm below the surface and the piezometric pressure was reduced from 16 to 180 cm below the surface in a saline/sodic soil 3 months from the start of pumping. Consequently soil salinity was reduced from ECe 12.3 to 7.3 dS/m in the top 30 cm under 1 15 mm ofrainfall. Further reduction in salinity to ECe 3 dS/m was achieved after 19 months. The presence of electrolytes in irrigation water preserved soil permeability during the irrigation season, while gypsum was beneficial during the winter rainfall season. Perennial pasture was established 11 months after pumping commenced. Weeds that originally dominated the site disappeared, while clover produced 70% of total dry matter.

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