Leaching is an essential part of the reclamation process, whether the soil is saline or alkali. Leaching is a very old process of removing salts from the soil and ameliorating saline-alkaline conditions. In leaching the field was embanked to hold rain water and subsequently ploughed in. Leaching and Flushing: Leaching is the method of
In this article we will discuss about:- 1. Stages of Reclamation of Saline and Alkali Soils 2. Process in Reclamation of Saline and Alkali Soils 3. Uses. Stages of Reclamation of Saline and Alkali Soils: 1. Leaching and Amending Stage: Saline soils are leached by ponding an appreciable depth of water with adequate drainage.
Dieleman (1963) and Leffelaar and Sharma (1977) also reported that an amendment may not be needed for reclamation of saline soils having high SAR. The effect of gypsum application on the infiltration rate of a saline soil upon leaching shows in Figure 6 a higher cumulative intake when gypsum was applied.
II. Reclamation of saline soil: Saline soil can be reclaimed by the following methods: (1) By lowering the water table 5-6 feet below the surface. In sloppy area, it can be done by making network of 5-6 feet deep trenches at right angles to the slopes. In course of 2 or 3 Successive leaching, harmful salts
Aug 01, 2015· Organic amendments were tested for their reclamation potential in a saline–sodic soil. • Leaching of amended soils was conducted using municipal reclaimed water. • Soil aggregation was significantly improved by composts than biochar. • Saturated hydraulic conductivity was greater in compost and biochar treated soils. •
As a well-known city of oil in China, Daqing City is unique in natural conditions with variety of soils. Among them, a large part belongs to the saline—alkaline land, which reduces the ability of filed sound as well as causes diversity of eco-environment issues. In this paper, the existing technologies to reclaim the saline-alkaline land are summarized to analyze its application context.
aquaculture, as a land leaching and reclamation strategy for saline-sodic clayey soils cannot be satisfactorily determined in many cases. Therefore, besides field experiments expertise in general is the best way to predict or diagnose the impacts. To achieve
Reclamation-rotation program for the soils in the permanent sugarcane field of the study area was presented while in the scenario I, regarding initial salinity of the layers of 0-25, 25-50, 50-75, 75-100, 100-125 and 125-150 cm which are 104.7, 40.9, 34.4, 32.6, 30.7 and 29.6 dS m-1.. Considering the noted status, a simulated model called leaching process was developed and both scenarios were
The availability of water for land reclamation is limited due to water shortage crises in the world. An experiment of leaching of saline soil in micro-plots of size 3m x 4 m was carried out with
Dec 01, 1989· The leaching process should begin on lower laying areas and work up gradually into higher ground. For the reclamation of saline soils sim- ple leaching with water of sufficient qual- ity and quantity sometimes will only be effective if the saline soil or
As a well-known city of oil in China, Daqing City is unique in natural conditions with variety of soils. Among them, a large part belongs to the saline—alkaline land, which reduces the ability of filed sound as well as causes diversity of eco-environment issues. In this paper, the existing technologies to reclaim the saline-alkaline land are summarized to analyze its application context.
leaching process in alkaline soils by application of sulphur. The results showed that after applying 1.3 pore volumes (pv) of water, cations such as and cost effective land reclamation methods. However, there are limited studies performed on the effects of leaching on saline soils were examined by unsaturated disturbed soil
aquaculture, as a land leaching and reclamation strategy for saline-sodic clayey soils cannot be satisfactorily determined in many cases. Therefore, besides field experiments expertise in general is the best way to predict or diagnose the impacts. To achieve
A large increase in land reclamation efforts and improved management practices will have to be undertaken in order to maintain or increase the productivity of irrigated lands. Reclamation of saline soils requires leaching of the soluble salts. The requirements for leaching are based on the salt tolerance of the crops to be grown. General
Saline Soil Drainage Network Land Reclamation Irrigate Land Cotton Yield These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
cm depth from the land to be reclamined for testing to know the soil pH. Gypsum is recommended based on the soil pH value. 2. Land development :The reclamation process is initiated by proper land levelling providing strong bunds on all sides of the farm to control ingress of
economically (2). Certain basic processes, such as land-leveling, drainage and leaching must be carried out in the reclamation of saline-sodic soils, whatever the type of problem is. The intensity and degree of these processes depend on the type of problem and the method used to reclaim the soil (3). Processes in land reclamation must be
Land reclamation, the process of improving lands to make them suitable for a more intensive use. Reclamation efforts may be concerned with the improvement of rainfall-deficient areas by irrigation, the removal of detrimental constituents from salty or alkali lands, the diking and draining of tidal marshes, the smoothing and revegetation of
Land reclamation Land reclamation Reclamation of salt-affected soils: In the arid regions of the world, and along coastal areas subject to periodic inundation by sea water, soils may have such a high content of soluble salts that production of economic plants is not possible. The salts found in soils are generally the chlorides, carbonates, bicarbonates, and sulfates of sodium, with lesser
Jun 25, 2019· 2.5. Application of saline and alkaline solutions. The effect of substituting DI water with saline and alkaline solutions for the humidification process was investigated. Majority of the steel industries throughout the world are located in coastal areas, suggesting that saline water is easily available for steel slag treatment.
A leaching model is a hydrological model by which the leaching with irrigation water of dissolved substances, notably salt, in the soil is described depending on the hydrological regime and the soil's properties. The model may describe the process (1) in time and (2) as a function of amount of water applied. Leaching is often done to reclaim saline soil or to conserve a favorable salt content
Reclamation-rotation program for the soils in the permanent sugarcane field of the study area was presented while in the scenario I, regarding initial salinity of the layers of 0-25, 25-50, 50-75, 75-100, 100-125 and 125-150 cm which are 104.7, 40.9, 34.4, 32.6, 30.7 and 29.6 dS m-1.. Considering the noted status, a simulated model called leaching process was developed and both scenarios were
Jan 15, 2013· A one‐year (2000) field experiment was conducted to investigate the reclamation and leaching effects of saline soils on barley production in Qom Province, Iran. A randomized block design with five treatments and three replications was used. The treatments were conventional irrigation practice (L0), two excess irrigation on preplanting (L1
leaching, however, saline-alkali soils generally become nonsaline-alkali soils, and their physical properties deterio- rate markedly. As the concentration of the salts in the soil solution is lowered by leaching, the adsorbed sodium present causes undesirable characteristics to develop. The soil may become strongly alkaline
A large increase in land reclamation efforts and improved management practices will have to be undertaken in order to maintain or increase the productivity of irrigated lands. Reclamation of saline soils requires leaching of the soluble salts. The requirements for leaching are based on the salt tolerance of the crops to be grown. General
The depth, permanence and costs and the methods of saline (and sodic) soil reclamation are briefly reviewed. GAR LAND, K. R. / Reclamation of waterlogged saline land in N.Victoria, Australia, a review of recent experiments. 6th Congr. Int. Comm. Irr. Drain., New Delhi, 1966. Q 19, R 12.
aquaculture, as a land leaching and reclamation strategy for saline-sodic clayey soils cannot be satisfactorily determined in many cases. Therefore, besides field experiments expertise in general is the best way to predict or diagnose the impacts. To achieve
Saline Soil Drainage Network Land Reclamation Irrigate Land Cotton Yield These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
cm depth from the land to be reclamined for testing to know the soil pH. Gypsum is recommended based on the soil pH value. 2. Land development :The reclamation process is initiated by proper land levelling providing strong bunds on all sides of the farm to control ingress of
economically (2). Certain basic processes, such as land-leveling, drainage and leaching must be carried out in the reclamation of saline-sodic soils, whatever the type of problem is. The intensity and degree of these processes depend on the type of problem and the method used to reclaim the soil (3). Processes in land reclamation must be
reclaiming material for highly saline sodic soils [6]. Reclamation process usually requires huge amounts of water to leach salts from soil profile. The principle of leaching is very simple; the salts must be washed downwards and away from the root zone by means of flooding and presence of
Land reclamation Land reclamation Reclamation of salt-affected soils: In the arid regions of the world, and along coastal areas subject to periodic inundation by sea water, soils may have such a high content of soluble salts that production of economic plants is not possible. The salts found in soils are generally the chlorides, carbonates, bicarbonates, and sulfates of sodium, with lesser
It is therefore the need of the hour to reclaim these saline areas as well as improve the plant’s ability to resist soil salinity. Many methods have been developed to desalinize the soils, such as leaching, growing halophytes, subsurface drainage, biomimicry, etc.
Land reclamation, the process of improving lands to make them suitable for a more intensive use. Reclamation efforts may be concerned with the improvement of rainfall-deficient areas by irrigation, the removal of detrimental constituents from salty or alkali lands, the diking and draining of tidal marshes, the smoothing and revegetation of
River shoal and ruderal land were the primary resources for cultivated lands compensation, and marsh, bare land and saline-alkaline land were found to be converted the most thoroughly. The gain of 23018.55 ha reclaimed cultivated lands were of relatively inferior quality and lower productivity, contributing approximately 4.32% of total grain
Mar 01, 2010· For instance, Montana and Wyoming have mostly saline soils with some saline-alkaline and only isolated occurrences of “black alkali” or sodic soils. Sodic soil reclamation requires the addition of amendments and leaching of salts, and will not be covered in this article. Soil salinity or sodocity is usually a symptom of a problem.
The depth, permanence and costs and the methods of saline (and sodic) soil reclamation are briefly reviewed. GAR LAND, K. R. / Reclamation of waterlogged saline land in N.Victoria, Australia, a review of recent experiments. 6th Congr. Int. Comm. Irr. Drain., New Delhi, 1966. Q 19, R 12.
Land reclamation Land reclamation Reclamation of salt-affected soils: In the arid regions of the world, and along coastal areas subject to periodic inundation by sea water, soils may have such a high content of soluble salts that production of economic plants is not possible. The salts found in soils are generally the chlorides, carbonates, bicarbonates, and sulfates of sodium, with lesser
Jul 26, 2019· It is therefore the need of the hour to reclaim these saline areas as well as improve the plant’s ability to resist soil salinity. Many methods have been developed to desalinize the soils, such as leaching, growing halophytes, subsurface drainage, biomimicry, etc.
economically (2). Certain basic processes, such as land-leveling, drainage and leaching must be carried out in the reclamation of saline-sodic soils, whatever the type of problem is. The intensity and degree of these processes depend on the type of problem and the method used to reclaim the soil (3). Processes in land reclamation must be
Because bad physical property originated by soil alkalization confine soluble salts leaching out soil, it is crucial to decrease exchangeable sodium content and to improve soil infiltration velocity. A field experiment was conducted to study the effectiveness of different dosage of flue gas desulfurization gypsum (0, 11.25, 22.5, 33.75, 45 t/ha) for reclaiming secondary alkaline saline soil....
reclaiming material for highly saline sodic soils [6]. Reclamation process usually requires huge amounts of water to leach salts from soil profile. The principle of leaching is very simple; the salts must be washed downwards and away from the root zone by means of flooding and presence of
Land reclamation, the process of improving lands to make them suitable for a more intensive use. Reclamation efforts may be concerned with the improvement of rainfall-deficient areas by irrigation, the removal of detrimental constituents from salty or alkali lands, the diking and draining of tidal marshes, the smoothing and revegetation of
River shoal and ruderal land were the primary resources for cultivated lands compensation, and marsh, bare land and saline-alkaline land were found to be converted the most thoroughly. The gain of 23018.55 ha reclaimed cultivated lands were of relatively inferior quality and lower productivity, contributing approximately 4.32% of total grain
Abstract. Agricultural production in the arid and semiarid regions of the world is limited by poor water resources, limited rainfall, and the detrimental effects associated with an excess of soluble salts, constrained to a localized area or sometimes extending over the whole of the basin.
and saline-sodic soils to flush sodium out of the system (Horneck, et al. 2007). Restoration of sodic and saline-sodic soils is a slow process. Reclamation will occur sequentially with depth as the calcium saturates the cation-exchange sites and moves down through the soil profile. Therefore, if deeper reclamation is desirable, you need
Saline soils are often referred to as “white alkali” because of the white salt crust that forms on the soil surface. Saline soils are characterized by the following: EC > 4, Exchangeable Sodium Percentage (ESP) < 15, and pH < 8.5. Saline soils can be easily reclaimed by application of sufficient water to promote leaching
Mar 27, 2015· Land Reclamation • The reclamation of land is the process of making a land culturable after it gets converted to uncultivable area due to the bad effect of water logging. The following are the general methods of land reclamation. • (i) Leaching • Leaching is a process for reclamation of the saline
leaching, however, saline-alkali soils generally become nonsaline-alkali soils, and their physical properties deterio- rate markedly. As the concentration of the salts in the soil solution is lowered by leaching, the adsorbed sodium present causes undesirable characteristics to develop. The soil may become strongly alkaline