4.7 Article

Development and application of a monthly water and salt balance model for seasonally frozen agricultural and non-agricultural areas with shallow groundwater table

Related references

Note: Only part of the references are listed.
Article Environmental Sciences

An improved estimation of soil water and salt dynamics by considering soil bulk density changes under freeze/thaw conditions in arid areas with shallow groundwater tables

Sheng Liu et al.

Summary: Soil bulk density (BD) plays a significant role in soil hydrothermal properties and water holding capacity. Changes in BD under freeze/thaw conditions can affect the estimation of soil water-salt dynamics. Ignoring BD changes can lead to overestimation or underestimation of soil water content, water fluxes, and soil hydrothermal properties.

SCIENCE OF THE TOTAL ENVIRONMENT (2023)

Article Engineering, Civil

Effects of soil particle size and gradation on the transformation between shallow phreatic water and soil water under laboratory freezing-thawing action

Junfeng Chen et al.

Summary: The transformation between shallow phreatic water and soil water during freezing-thawing period has significant impacts on the evaluation of water resources and soil salinization. Laboratory experiments were conducted to investigate the variations in soil temperature, upward migration amount of phreatic water to soil water (UMA), and downward movement amount of soil water to phreatic water (DMA) under different soil particle sizes and inhomogeneity coefficients. The results showed that soil temperature stability was reached earlier with larger soil particle size and inhomogeneity coefficient, while the cumulative UMA and DMA were influenced by soil particle size and inhomogeneity coefficient during freezing and thawing stages. These findings are important for preventing soil salinization and scientifically evaluating water resources.

JOURNAL OF HYDROLOGY (2023)

Article Engineering, Civil

Improving soil hydrological simulation under freeze-thaw conditions by considering soil deformation and its impact on soil hydrothermal properties

Sheng Liu et al.

Summary: Traditional agricultural or eco-hydrological models often neglect soil deformation and its impact on hydro-thermal properties during freeze-thaw periods. This can lead to significant errors, particularly in arid areas with shallow groundwater tables. In this study, the SHAW model was modified to account for soil deformation and its impact on hydrothermal properties. The modified model was validated using experimental data from the Hetao Irrigation District in the upper Yellow River basin. The results showed that the modified SHAW model outperformed the original model in simulating soil water, heat, and salt transport, with average decreases of 37.5% and 23% in RMSE values for soil water content and temperature, respectively.

JOURNAL OF HYDROLOGY (2023)

Article Engineering, Civil

Response mechanism of groundwater dynamics to Freeze-thaw process in seasonally frozen soil areas: A comprehensive analysis from site to regional scale

Hang Lyu et al.

Summary: Studying the dynamic mechanism of water-level variations during the freeze-thaw period in seasonally frozen soil regions is crucial for winter agricultural irrigation and groundwater resource assessment. This study analyzed groundwater-level monitoring data, meteorological data, and soil types in the plain area of Jilin Province, China, and identified the dynamic characteristics and influencing factors of groundwater-level variations during the freeze-thaw period. The research results provide important guidance for winter agricultural irrigation and groundwater recharge resource evaluation.

JOURNAL OF HYDROLOGY (2023)

Article Environmental Sciences

Regional soil salinity spatiotemporal dynamics and improved temporal stability analysis in arid agricultural areas

Guanfang Sun et al.

Summary: This study conducted soil salinity measurements at 68 sampling sites at different depths and utilized geostatistical analysis and temporal stability analysis to understand soil salinity variability. It found strong spatial dependency of soil salinity, proposed an improved temporal stability analysis method, and achieved significantly improved predictions. The study recommends combining these analytical methods for better monitoring efficiency of regional soil salinity.

JOURNAL OF SOILS AND SEDIMENTS (2022)

Article Engineering, Civil

A monthly distributed agro-hydrological model for irrigation district in arid region with shallow groundwater table

Yeqiang Wen et al.

Summary: This study developed a monthly distributed agrohydrological model (DAHMID) based on remote sensing and groundwater depth measurements for studying agro-hydrological processes in arid irrigation districts. The results showed that interior drainage plays an important role in the climate processes of arid irrigation districts, and evapotranspiration is the major water consumption. Irrigation has a significant impact on soil water and groundwater depth.

JOURNAL OF HYDROLOGY (2022)

Article Engineering, Civil

Chemical characteristics of salt migration in frozen soils during the freezing-thawing period

Mengqin Wang et al.

Summary: Field experiments were conducted to analyze the non-synchronized movement of soil water and salt during freezing-thawing periods, with a focus on soil salt composition and convection-diffusion theory. The results shed light on the mechanisms underlying soil water and salt dynamics in agricultural systems with shallow groundwater tables.

JOURNAL OF HYDROLOGY (2022)

Article Geography, Physical

Multi-year mapping of flood autumn irrigation extent and timing in harvested croplands of arid irrigation district

Ximin Qian et al.

Summary: This study proposes a threshold-based method to extract the extent and timing of flood irrigation in the Hetao Irrigation District (HID) in China. The model uses MODIS water indices and robust thresholds to achieve strong generalization capability. Through validation using pixel and field survey data, the model shows an overall accuracy of over 90.0% for the irrigation area.

GISCIENCE & REMOTE SENSING (2022)

Article Agronomy

Spatiotemporal Patterns and Key Driving Factors of Soil Salinity in Dry and Wet Years in an Arid Agricultural Area with Shallow Groundwater Table

Guanfang Sun et al.

Summary: This study investigated the spatial patterns and seasonal dynamics of soil salinity in irrigated agro-ecosystems, as well as the driving factors behind these patterns. The results showed that water movement from deep layers to shallow layers resulted in an increase in soil salinity in the root zone and a decrease in the deep soil during the crop growing season. However, this trend was reversed during the fallow seasons. Crop types, groundwater table depth, and climate conditions played significant roles in the contribution of shallow groundwater to soil salinity.

AGRICULTURE-BASEL (2022)

Article Agronomy

Growing season water and salt migration between abandoned lands and adjacent croplands in arid and semi-arid irrigation areas in shallow water table environments

Geng Liu et al.

Summary: In arid and semi-arid areas, dry drainage can mitigate soil salinization by promoting evaporation and absorption of salts on abandoned lands. During the irrigation season, water and salt flow from croplands to abandoned lands, but planting halophytes on abandoned lands can help prevent water and salt flux back to croplands.

AGRICULTURAL WATER MANAGEMENT (2022)

Review Environmental Sciences

Soil salinization management for sustainable development: A review

Ajay Singh

Summary: Expanding irrigated agriculture is essential to feed the growing global population, but it can lead to soil salinization without proper management, which is a persistent environmental issue. Over 20% of global irrigated areas currently face soil salinization and waterlogging, with potential expansion to over 50% by 2050. Proper management of soil salinization is crucial for achieving Sustainable Development Goals, and comprehensive measures are needed to address this environmental problem.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2021)

Editorial Material Environmental Sciences

Soil and water threats in a changing environment

Paulo Pereira et al.

ENVIRONMENTAL RESEARCH (2020)

Article Soil Science

Water and Solute Fluxes in Soils Undergoing Freezing and Thawing

Kang Wang et al.

SOIL SCIENCE (2016)

Article Environmental Sciences

Untangling the effects of shallow groundwater and soil texture as drivers of subfield-scale yield variability

Samuel C. Zipper et al.

WATER RESOURCES RESEARCH (2015)

Article Geography, Physical

Freezing experiments on unsaturated sand, loam and silt loam

Kunio Watanabe et al.

ANNALS OF GLACIOLOGY (2011)

Article Engineering, Multidisciplinary

On the effectiveness of dry drainage in soil salinity control

Wu JingWei et al.

SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES (2009)

Review Plant Sciences

Mechanisms of salinity tolerance

Rana Munns et al.

ANNUAL REVIEW OF PLANT BIOLOGY (2008)

Article Engineering, Civil

Water balance within intensively cultivated alluvial plain in an arid environment

Qiuhong Tang et al.

WATER RESOURCES MANAGEMENT (2007)

Article Agronomy

Controlled drainage for improved water management in and regions irrigated agriculture

J. E. Ayars et al.

AGRICULTURAL WATER MANAGEMENT (2006)

Article Plant Sciences

World salinization with emphasis on Australia

P Rengasamy

JOURNAL OF EXPERIMENTAL BOTANY (2006)

Article Multidisciplinary Sciences

Sustainability of irrigated agriculture in the San Joaquin Valley, California

G Schoups et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2005)

Article Agronomy

Extracting relatively-fresh groundwater from aquifers underlain by salty groundwater

MN Asghar et al.

AGRICULTURAL WATER MANAGEMENT (2002)

Article Environmental Sciences

Mechanism of freeze-thaw action in the process of soil salinization in northeast China

DF Zhang et al.

ENVIRONMENTAL GEOLOGY (2001)