Impact of Climate Change on Soil Salinity: A Remote Sensing Based Investigation in Coastal Bangladesh

Rahman, Md. Shahinoor; Di, Liping; Yu, Genong; Tang, Jinshan; Lin, Li; Zhang, Chen; Yu, Zhiqi; Gaigalas, Juozas

doi:10.1109/agro-geoinformatics.2018.8476036

Cited by 26 publications

(15 citation statements)

References 12 publications

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“…The saturated conditions of waterlogging and soil salinization can reduce soil quality and crop yield productivity (Zhang et al, 2021), where aspects contributing to excessive Na 2 CO 3 salt accumulation and humus decomposition as observed in the studied soil (Figs. 12, 13, and 14) being linked to seawater seepage, which is caused by the rising level of seawater (Rahman et al, 2018). These conditions can negatively affect the quality of groundwater when used for irrigation (Omar et al, 2021).…”

Section: Rising Water Table Across the Study Soilsmentioning

confidence: 99%

“…Numerous studies have been conducted globally to examine the relationship between soil salinization and climate change variables. For instance, Rahman et al (2018) studied the shift in soil salinization from nonsaline to strongly saline along the coastal lines of Bangladesh over a 25 yr period from 1990 to 2015. They stated that the change in soil salinity in Bangladesh was due to the rise in sea level from 7007 mm in 1983 to 7129 mm in 2003 on the coast of Bangladesh.…”

Section: Responsible Drivers Of Soil Salinization and Climate Change ...mentioning

confidence: 99%

“…They stated that the change in soil salinity in Bangladesh was due to the rise in sea level from 7007 mm in 1983 to 7129 mm in 2003 on the coast of Bangladesh. A rise in sea level in this area is predicted to further increase to flooding the whole land causing further salinization (Rahman et al, 2018).…”

Section: Responsible Drivers Of Soil Salinization and Climate Change ...mentioning

confidence: 99%

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Impact of Water Seepage of New Suez Canal on Soil Properties of El-Amal Area, Ismailia East, Egypt

Elwan¹

2021

Journal of Soil and Water Sciences

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Seawater seepage poses a major problem for agriculture in Egypt's coastal areas. In 2020, a 285 Faddan area in El-Amal, Ismailia East was selected as a representative soil model for Egypt's New Suez Canal region to investigate the impact of seawater seepage on soil properties and identify the responsible factors for land degradation, with an emphasis on suitable adaptations to land limitations and climate stressors. Seawater changes the behavior of soil and creates geotechnical problems that enhance soil alkalinity and salinity value. Five soil mapping units (SMUs) were identified with moderately to shallow soils dominating, in a detailed soil survey that was conducted in the field to conduct pedomorphological and physicochemical investigations. The water table had raised by 50-100 cm within the soil pedons. Approximately 45.4 Faddans were recognized as sabkhas due to the inundation of lowlands with seawater. Most study lands (217.2 Faddan) were unsuitable for cultivation due to the higher limitations of salinity, alkalinity, soil structure, and poor drainage under saturation conditions. The salinity of saturated soil reached 29.60 dS/m, posing a major challenge to agriculture. The results indicated that the pedomorphological and physicochemical properties of most study soils had degraded and become unsuitable for cultivation, which was linked to the seawater seepage. It is predicted that the rest lands (SMU1 and SMU2) and other adjacent lands to the study area are expected to change into desertified lands in the future due to continuous seawater seepage. The New Suez Canal's seawater seepage caused the cultivated fruit trees and other vegetation in the study area to dry up and die. Climate change-induced seawater seepage and drought were the direct causes of soil salinization in the study lands. To achieve long-term sustainability and avoid maladaptive outcomes, an urgent need to adopt an integrated approach for large-scale investments in Egypt's farming sector is urgently needed for effective policymaking toward achieving food security, with it being recognized that climate change has adverse effects and challenges to the soil resources in Egypt, and therefore, the sustainable planning of natural resources in coastal areas should be further studied and thoroughly managed. Adopting local adaptation actions and strategies for incremental, systemic, and transformational changes at the farm and on large scales in the agricultural sector is critical. The transformational adaptation actions are the suitable practices, followed by incremental and systemic adaptations to combat the agricultural limitations and climate change stressors in the current study lands.

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Section: Rising Water Table Across the Study Soilsmentioning

confidence: 99%

Section: Responsible Drivers Of Soil Salinization and Climate Change ...mentioning

confidence: 99%

Section: Responsible Drivers Of Soil Salinization and Climate Change ...mentioning

confidence: 99%

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Impact of Water Seepage of New Suez Canal on Soil Properties of El-Amal Area, Ismailia East, Egypt

Elwan¹

2021

Journal of Soil and Water Sciences

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“…Sea level rise anticipates seawater flooding into coastal lands, which can be exacerbated by extreme climatic events such as hurricanes, typhoons, storm surges and monsoons [14,30]. Such rises may boost seawater intrusion into aquifers [91][92][93]. Ecosystem degradation due to increased salinization is evident for example in Australia where over 2 million hectares of agricultural land suffer massive production losses [94] and several plant species are threatened as a consequence of salinization [14, [95][96][97].…”

Section: Salinization Threatened Ecosystems and Plant Salt-tolerance Mechanismsmentioning

confidence: 99%

Cyanobacteria as a Nature-Based Biotechnological Tool for Restoring Salt-Affected Soils

et al. 2020

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Soil salinization poses an important threat to terrestrial ecosystems and is expected to increase as a consequence of climate change and anthropogenic pressures. Conventional methods such as salt-leaching or application of soil amendments, or nature-based solutions (NBSs) such as phytoremediation, have been widely adopted with contrasting results. The use of cyanobacteria for improving soil conditions has emerged as a novel biotechnological tool for ecosystem restoration due to the unique features of these organisms, e.g., ability to fix carbon and nitrogen and promote soil stabilisation. Cyanobacteria distribute over a wide range of salt concentrations and several species can adapt to fluctuating salinity conditions. Their application in agricultural saline soil remediation has been demonstrated, mostly in laboratory studies, but there is a lack of research regarding their use in natural ecosystems restoration. In this article, we provide an overview of the current knowledge on cyanobacteria in the context of ecosystem restoration. Examples of the application of cyanobacteria in alleviating salt-stress in plants and soils are presented. Furthermore, we acknowledge gaps regarding the extensive application of cyanobacteria in salt-affected soils remediation and discuss the challenges of NBSs in salt-affected soils restoration.

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“…It was estimated that a total of 93,319 ha and 1.6 million tons of crops were damaged or destroyed by floods in the world between 2003 and 2013, which account for 57% of crop damage by all natural disasters [1]. Flood risks are high because crop fields are typically located in floodplains that support fertile soils [7]. Furthermore, flood protection standards for croplands are weak compared to urban areas [8].…”

Section: Introductionmentioning

confidence: 99%

A Systematic Review on Case Studies of Remote-Sensing-Based Flood Crop Loss Assessment

Rahman

2020

Agriculture

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This article reviews case studies which have used remote sensing data for different aspects of flood crop loss assessment. The review systematically finds a total of 62 empirical case studies from the past three decades. The number of case studies has recently been increased because of increased availability of remote sensing data. In the past, flood crop loss assessment was very generalized and time-intensive because of the dependency on the survey-based data collection. Remote sensing data availability makes rapid flood loss assessment possible. This study groups flood crop loss assessment approaches into three broad categories: flood-intensity-based approach, crop-condition-based approach, and a hybrid approach of the two. Flood crop damage assessment is more precise when both flood information and crop condition are incorporated in damage assessment models. This review discusses the strengths and weaknesses of different loss assessment approaches. Moderate Resolution Imaging Spectroradiometer (MODIS) and Landsat are the dominant sources of optical remote sensing data for flood crop loss assessment. Remote-sensing-based vegetation indices (VIs) have significantly been utilized for crop damage assessments in recent years. Many case studies also relied on microwave remote sensing data, because of the inability of optical remote sensing to see through clouds. Recent free-of-charge availability of synthetic-aperture radar (SAR) data from Sentinel-1 will advance flood crop damage assessment. Data for the validation of loss assessment models are scarce. Recent advancements of data archiving and distribution through web technologies will be helpful for loss assessment and validation.

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Impact of Climate Change on Soil Salinity: A Remote Sensing Based Investigation in Coastal Bangladesh

Cited by 26 publications

References 12 publications

Impact of Water Seepage of New Suez Canal on Soil Properties of El-Amal Area, Ismailia East, Egypt

Impact of Water Seepage of New Suez Canal on Soil Properties of El-Amal Area, Ismailia East, Egypt

Cyanobacteria as a Nature-Based Biotechnological Tool for Restoring Salt-Affected Soils

A Systematic Review on Case Studies of Remote-Sensing-Based Flood Crop Loss Assessment

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