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Hydraulic conductivity is very low in saline-sodic soil, which decreases water infiltration. For saline-sodic soil, increasing infiltration water has a special meaning. Increasing infiltration water not only increases the water in the soil profile but also decreases the salinity of the soil, thus making it suitable for growing crops. This study aims to examine the effect of sand pipes on soil water and salt distribution through laboratory tests with different depths and diameters of sand pipes.

The soil water and salt distribution responses to different sand pipe depths and diameters was investigated. Treatments included sand pipes with diameters of 4 cm, 5cm, 6 cm and the same depth of 4 cm; with depths of 2cm, 6 cm and the same diameter of 5 cm, and a control with no sand pipe (with the diameter of 0 cm and the depth of 0 cm).

The results suggested that the amount of cumulative infiltration water and transport distance of the wetting front could be increased by increasing the depth and diameter of sand pipes. The soil water content in the soil profile decreased under all treatments except for the control, whereas the value of EC increased with increasing distance from the film hole center. Positive relationships were also found among the sand pipe depth, diameter and the zone of low salt content. Furthermore, salt leaching depth increased with sand pipe depth and diameter. Overall, the treatments with and without sand pipes exhibited obvious differences.

The correlation analysis proved that increasing the infiltration area through sand pipes positively affected the amount of infiltration water, wetting scope and salt leaching depth.

Introduction Although the soil as a corrosive environment is probably of greater complexity than any other environment, it is possible to make some generalisations regarding soil types and corrosion. It is necessary to emphasise that corrosion in soils is extremely variable and can range from the rapid to the negligible. This can be illustrated by the fact that buried pipes have become perforated within one year, while archaeological specimens of ancient iron have probably remained in the soil for hundreds of years without significant attack.

The purpose of this paper is to study the influence of moisture on corrosion behaviour of steel ground rods in mildly desertified soil and the mechanism behind it.

The specimens were used for weight loss corrosion experiments and polarization scans were taken at different moisture levels. Specimen surfaces were characterized using a scanning electron microscope, energy dispersive spectrometer, and using X‐ray diffraction.

The results indicated that the moisture content of the soil influenced steel corrosion considerably. The maximum corrosion of 20G and Q235 galvanised steels occurred at 10 per cent and 12.5 per cent soil moisture, respectively. The corrosion products of 20G steel were mostly Fe₂O₃ and Fe₃O₄, whereas that of Q235 galvanised steel was Zn₅(OH)₈Cl₂ · H₂O.

The paper provides information regarding the relationship between moisture and corrosion of steel ground rods, which is useful for understanding the mechanism of soil corrosion. The research results can provide theoretical guidelines for preventing the corrosion of steel ground rods buried in mildly desertified soil.

There is a connection between cotton production and the Aral Sea disaster in Uzbekistan. Large-scale cotton production utilizes the practices of conventional agriculture and has severe environmental consequences in arid regions. Some of these problems, such as salinization, currently exist in Uzbekistan as a result of cotton production and these conventional farming practices. This chapter is a review of cotton production, the environmental consequences of conventional agriculture, and its relationship to the Aral Sea Disaster. Storm water management with biofiltration, sustainable farming practices, efficient irrigation, ecological horticultural practices, and a water conservation program are remedies that can help to reduce the environmental degradation caused by cotton production and restore some of the water resources in Uzbekistan.

The purpose of this paper is to assess the risk due to climate induced disasters in coastal regions. Coastal areas, being economically attractive and ecologically fragile, need altogether different development approaches. The paper also explores the applicability of stakeholder theory for managing coastal regions in a sustainable manner. This paper should help policymakers when making their decisions to maintain coastal regions’ prosperity.

The paper opted for an exploratory study using secondary information available at various levels. This paper presents the case study of the coastal region of Gujarat. It starts by evaluating the present status of the coastal resources and their degradation. It then assesses the risk due to climate induced coastal hazards. It has critically reviewed the policy response towards coastal issues and problems. The applicability of stakeholder approach had been tested for coastal management.

The paper has identified that in an absence of stakeholder approach, the current planning strategies have failed to deal with coastal issues and problems. The coastal region needs a special attention for sustaining its development. An integrated regional framework for coastal development is required which encompasses trade‐off among various sectors. The region needs a long‐term regional land use planning, which can facilitate the disaster resilience and adaptation strategies for local communities. Finally adopting a stakeholder approach is recommended, to improve the ecological productivity and biodiversity of the coastal region.

The research has important policy implications for the state of Gujarat and infers that the stakeholder approach is the most appropriate approach for planning the development of the coastal region.

The paper has direct policy implications for the government of Gujarat and Government of India. Coastal planning needs a systematic approach to have an integrated development. The use of stakeholder approach can solve many issues and problems of coastal conflicts. Such an approach is very important for the protection and sustainable development of the coastal region. This also has colossal relevance for any developing countries preparing coastal region development plans.

The suggestions incorporated in the paper have also looked into the consideration of environmental conservation and protection of rights to livelihood for marginalized groups such as fishing communities.

The use of stakeholder theory for public sector planning is a new approach in a research. The paper has delved into the requirement of stakeholder approach in coastal planning for developing the coastal economy and conserving the coastal environment.

There is a growing concern in recent years regarding climate change risks to real estate in the developed and developing countries. It is anticipated that the property sector could be affected by variable climate and related extremes as well as by the strategies adopted to combat greenhouse gas (GHG) emissions. This paper aims to analyse the current knowledge regarding future climate changes to understand their possible impacts on the real estate sector of Malaysia with an aim to help stakeholders to adopt necessary responses to reduce negative impacts.

Available literature is reviewed and data related to climatic influences on buildings and structures are analysed to understand the climate change impacts on real estate in Malaysia.

The study reveals that temperature in the Peninsular Malaysia will increase by 1.1 to 3.6°C, rainfall will be more variable and river discharge in some river basins will increase up to 43 per cent during the northeast monsoon season by the end of this century. These changes in turn will pose risks of property damage and increase property lifecycle costs. Furthermore, property prices and the overall growth of the property sector may be affected by the government policy of GHG emission reduction by up to 45 per cent by the year 2030. This study concludes that the property sector of Malaysia will be most affected by the implementation of GHG emission reduction policy in the short term and due to the physical risk posed by variable climate and related extremes in the long term.

The study in general will assist in guiding the operational responses of various authorities, especially in terms of those interventions aimed at climate change risk reduction in the property sector of Malaysia.

The World Heritage site of Moenjodaro, located in the Indus flood plain and dating to the early Bronze Age, is believed to be the most important urban centre of the Indus valley culture. The purpose of the paper is to discuss the main conservation threats and the mechanisms of decay affecting the site and to understand the influence of soluble salts on materials such as fired brick and soil. Furthermore, the paper aims to describe the repair methods employed against salt attack and provides a scheme for site management.

In the paper a literature review is followed by laboratory experiments.

The main result is the experimental assessment of the repair materials and methods traditionally employed in Moenjodaro. No evaluation was undertaken prior to this study and this makes the work the more relevant.

A more complete and detailed study of the materials examined here might have been achieved if more samples had been analysed. The present study is therefore characterised by this limitation which, however, does not undermine the significance of the work.

The results have practical applicability to the conservation of Moenjodaro in a variety of ways. The experimental analysis of materials will be essential to determine the type of intervention required for conserving the site.

The value of this paper derives from the originality of the work done, being the first of its kind for Moenjodaro. It will be especially useful to those conservators working in the site, but also in similar sites. It stresses the importance of testing before any conservation work is carried out.

The present study focused on examining the effect of treated wastewater (TWW) on soil chemical properties. Also, efforts were made to compare the soil chemical properties under TWW irrigation with that under groundwater (GW).

During the years 2021 and 2022, surface and subsurface soil samples were randomly collected in triplicate by using an auger fortnightly at two depths (20 and 40 cm) from the selected spot areas to represent the different types of irrigation water sources: TWW and GW. Samples of the GW and the TWW were collected for analysis.

This study examines the impact of TWW on soil characteristics and the surrounding environment. TWW use enhances soil organic matter, nutrient availability and salt redistribution, while reducing calcium carbonate accumulation in the topsoil. However, it negatively affects soil pH, electrical conductivity and sodium adsorption ratio, although remaining within acceptable limits. Generally, irrigating with TWW improves most soil chemical properties compared to GW.

In general, almost all of the soil’s chemical properties were improved by irrigating with TWW rather than GW. Following that, wastewater is used to irrigate the soil. Additionally, the application of gypsum to control the K/Na and Ca/Na ratios should be considered under long-term TWW and GW usage in this study area in order to control the salt accumulation as well as prevent soil conversion to saline-sodic soil in the future. However, more research is needed to thoroughly investigate the long-term effects of using TWW on soil properties as well as heavy metal accumulation in soil.

The purpose of this paper is to explore the environment around the rail track at different sites in Nile Delta region, Egypt, through the measurements of the air pollutants and corrosive ionic species present in surface soil and also to investigate the impact of the existing contaminants on the composition of iron rust formed on the rail head surface at these sites and then the durability of rail itself.

The soil characterization was studied by means of sieve shakers, pH meter, conductivity meter and ion chromatography instrument. Scanning electron microscopy, energy dispersive spectrometry, Fourier transform infrared spectroscopy and X-ray diffraction were used to characterize the rust layer formed on the rail head surface.

The results showed the relation between the contaminants and the composition of the rust layer. Magnetite and goethite were the major phases identified in the rust layers. Akaganeite was detected in the marine atmosphere. Iron sulfide and iron oxide nitrate hydroxide were detected in environments rich in H₂S and NO₂ gases, respectively. The appearance of phases like FeCl₂ and FeOCl only at marine atmospheres reflects that the corrosive species in suspended particulate matter like chloride ion have a higher effect on the rust composition of the rail head surface than that in surface soil layer.

This paper revealed the impact of air and soil contaminants on the composition of rust layer on the rail head surface and may provide guidance for the durability of rails and the necessity for their preservation.