Article
Soil Science
G. I. Chernousenko, N. B. Khitrov, E. I. Pankova
Summary: Statistical analysis of 3802 samples of saline soils from different regions of Russia revealed that soils containing gypsum have a higher proportion of magnesium compared to gypsum-free saline soils. The presence of gypsum does not contribute to increased salinity. Salinization is mainly influenced by sodium and magnesium salts, with sodium often being more dominant. The study also found that the proportion of magnesium significantly increases with the presence of gypsum, even in strongly saline soil horizons.
EURASIAN SOIL SCIENCE
(2023)
Article
Engineering, Environmental
Xusheng Wan, Dongxue Tan, Ying Lai, Shuangyang Li, Jianguo Lu, Zhongrui Yan
Summary: The phase change and crystallization in saline soils under freezing and freezing-thawing cycles were investigated. Heat curves of saline soils with different salt concentrations were measured, and the proportions of salt crystal, ice crystal, and unfrozen water produced during the phase transition were calculated. The effect of salt type and concentration on soil structure was analyzed.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2022)
Review
Agronomy
Abdelbasset Lakhdar, Mohamed Trigui, Francesco Montemurro
Summary: The unsustainable use of natural resources and overexploitation pose significant threats to global agricultural development, leading to abiotic stresses and soil degradation. Plant biostimulants, consisting of organic products such as algae, microorganisms, and amino acids, have been proposed as a method to improve crop productivity and resistance to abiotic stress. These biostimulants can also reduce the dependence on conventional chemical fertilizers. This review aims to present the effects of different biostimulants on saline conditions and their impact on crop growth and salt resistance.
Article
Agronomy
Laura Perez-Martin, Silvia Busoms, Maria Jose Almira, Nicole Azagury, Joana Teres, Roser Tolra, Charlotte Poschenrieder, Juan Barcelo
Summary: Alkaline salinity constrains crop yield. Arabidopsis thaliana shows local adaptation to saline-siliceous and non-saline carbonate soils, but no natural population is found on saline-alkaline soils. This study suggests that tolerance to saline-siliceous soils may not confer tolerance to alkaline salinity.
Article
Environmental Sciences
Yongchun Pan, Dongli She, Xinyi Chen, Yongqiu Xia, Luis Carlos Timm
Summary: The study investigated the effects of wheat straw biochar application on denitrification and NH3 volatilization in coastal saline soils. Results showed that biochar amendment decreased denitrification rates but increased NH3 volatilization rates. Sediment environmental factors had a greater control over denitrification, while overlying water environmental factors had a greater influence on NH3 volatilization. Overall, biochar application effectively regulated denitrification but posed a risk of increased NH3 volatilization.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Chao Yang, Yitong Chen, Qian Zhang, Xihu Qie, Jinxia Chen, Yajuan Che, Dantong Lv, Xinyu Xu, Yuxuan Gao, Zengyu Wang, Juan Sun
Summary: The importance of microorganisms in regulating methane (CH4) emissions under elevated salinity in saline-alkali soils is still unclear. This study investigated the composition of CH4 production and oxidation microbial communities at different salinity levels in the Yellow River Delta, China. The results showed that soil electrical conductivity, salt content, and concentrations of Na+ and SO42- were negatively correlated with CO2 and CH4 emission rates, while NO2-N concentration and NO2-/NO3- ratio were positively correlated. The study also found that the abundance of methanotrophic bacteria increased while the abundance of methanogenic archaea decreased with increasing salinity, suggesting increased CH4 oxidation and reduced CH4 production.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Agriculture, Multidisciplinary
Lifeng Wu, Wenzhi Zeng, Guoqing Lei, Tao Ma, Jingwei Wu, Jiesheng Huang, Thomas Gaiser, Amit Kumar Srivastava
Summary: Root length density (RLD) is an important input for agro-hydrological models, but it is difficult to measure and influenced by soil environments. This study analyzed 256 datasets of sunflower's actual root length density (ARLD) under saline conditions and found that machine learning models (MLMs) were more accurate in predicting ARLD than elementary function models. Results showed that the distribution of ARLD varied significantly in fields with different salinity levels. The findings highlight the importance of considering RLD plasticity in saline soil and the potential of MLMs for RLD prediction.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2022)
Article
Agronomy
Kai Wei, Shudong Lin, Jihong Zhang, Quanjiu Wang, Yi Guo, Weiyi Mu
Summary: Ionized saline water can have positive effects on soil and agricultural irrigation in saline areas, increasing soil water content, salt leaching, and improving soil quality and crop growth.
IRRIGATION AND DRAINAGE
(2023)
Article
Geosciences, Multidisciplinary
Brahim Askri, Sonia Khodmi, Rachida Bouhlila
Summary: This paper assesses the performance of a subsurface drainage system in controlling water and salt balances, reducing water table levels, and reclaiming saline soils in the Sagdoud oasis in southern Tunisia. The results demonstrate that the system effectively controls water and salt balances, but does not address groundwater mineralization.
Article
Computer Science, Information Systems
Arfat Ahmad Khan, Muhammad Asif Nauman, Rab Nawaz Bashir, Rashid Jahangir, Roobaea Alroobaea, Ahmed Binmahfoudh, Majed Alsafyani, Chitapong Wechtaisong
Summary: This study proposes an architecture based on the Internet of Things (IoT) and machine learning for accurate estimation of evapotranspiration (ET) in saline soils for reclamation purposes. It utilizes IoT technology to collect field data and applies machine learning models for monthly ET predictions. The experimental results demonstrate that the ensemble LSTM-based approach is more accurate than the LSTM model and closer to the FAO-56 PM-based method. The implementation in a real-time environment shows that the proposed solution is more effective in reducing soil salinity.
Article
Ecology
Katarzyna Negacz, Ziga Malek, Arjen de Vos, Pier Vellinga
Summary: Salinization poses a major challenge for agriculture, but it can be addressed through saline agriculture methods. This study aims to identify locations and surface area of saline soils and assess the potential for saline agricultural production. The results show that salt-affected soils cover a total area of 17 million km(2), with the largest potential lying in non-depleted water basins totaling 2 million km(2). Further socio-economic analysis is needed to determine priority countries for sustainable food production exploration.
JOURNAL OF ARID ENVIRONMENTS
(2022)
Article
Geosciences, Multidisciplinary
Lipeng Wu, Shirong Zhang, Ronghui Ma, Mengmeng Chen, Wenliang Wei, Xiaodong Ding
Summary: Organic amendments significantly increased soil organic C stock in saline paddy fields, with biochar treatment showing the highest increase. However, rice straw and organic fertilizer were found to be more effective in improving soil aggregate stability compared to biochar. This research highlights the importance of organic amendments in enhancing soil quality and carbon sequestration in saline-alkaline soils.
Article
Environmental Studies
Juan Herrero, Carmen Castaneda
Summary: This study demonstrates a method for monitoring saline wetlands by analyzing soil characteristics and compares the sensitivity of this method with other indicators. The results show that soil traits are a sensitive indicator of wetland ecological status, and significant differences were found between the two wetlands in water saturation, gypsum content, and soil salinity.
Article
Geochemistry & Geophysics
Runze Tian, Yu Zhang, Anhua Xu, Xuemei Li, Yunlong Hou, Bowen Tai
Summary: Through experiments and mathematical modeling, it was found that highly chlorinated saline soils exhibit a tendency for water and salt to migrate towards the cold end during the cooling process. Different chlorine content soils showed variations in water and salt content, with phase change temperature set in numerical simulations to match experimental results.
Article
Geography, Physical
Xusheng Wan, Enlong Liu, Enxi Qiu
Summary: This study presents a computational model of the freezing point and nucleation rate in saline soils based on soil volume, exploring the influence of salt content on water supercooling. The relationship between salt content and initial contact angle is quantitatively analyzed, with ice crystal growth determined by the contact angle. Results show that ice crystal size decreases with lower salt concentration, while ice nucleation temperature is mainly determined by the contact angle, decreasing with increasing soil volume.
PERMAFROST AND PERIGLACIAL PROCESSES
(2021)
