Article
Environmental Sciences
Amirhossein Montazeri, Mehdi Mazaheri, Saeed Morid, Mohammad Reza Mosaddeghi
Summary: This study evaluated the water and soil resources in the lower parts of the Shatt al-Arab River area and assessed the impact of upstream activities on the river's water quality. The findings revealed that future changes in water flow will affect the water and soil quality in downstream riparian countries, highlighting the importance of participatory crisis mitigation strategies between upstream and downstream nations.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Felipe Lobos-Roco, Oscar Hartogensis, Jordi Vila-Guerau de Arellano, Alberto de la Fuente, Ricardo Munoz, Jose Rutllant, Francisco Suarez
Summary: The study investigates the influence of regional atmospheric circulation on the evaporation of a saline lake in the Atacama Desert region. Two different evaporation regimes were found: one controlled by local conditions in the morning and another controlled by regional-scale forcing in the afternoon. Strong winds and locally available radiative energy were identified as the principal drivers of evaporation.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Agronomy
Johannes Hendrikus Barnard, Nicolette Matthews, Christiaan Cornelius du Preez
Summary: The study aimed to formulate best water and salt management practices to minimize the impact of salt on plant growth and conduct a comprehensive assessment before problems arise. Analysis of data from 19 fields revealed that good decisions included using center pivot irrigation systems, ensuring irrigation schedules keep the soil consistently moist to reduce yield losses caused by waterlogging and soil salinity.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Agronomy
Shahram Torabian, Salar Farhangi-Abriz, Ruijun Qin, Christos Noulas, Guojie Wang
Summary: Effective nitrogen management practices are crucial for sustaining crop production and minimizing nitrate leaching loss in irrigated fields. However, limited studies have been conducted on the applied practices. Two field studies were conducted in the Columbia Basin to evaluate the performance of various nitrogen fertilizers in spring and winter wheat. The results indicate that fertilizer treatments did not significantly affect wheat grain yield and protein content, but the application methods and rates had some impact on soil nitrogen content.
Article
Engineering, Civil
N. Claes, G. B. Paige, B. L. Gordon, A. D. Parsekian, S. N. Miller
Summary: Agricultural water, particularly from flood irrigation, is a significant concern for water managers and policymakers due to its large freshwater usage. This study improved understanding of how flood applied water contributes to storage and surface water bodies through return flow, with a focus on subsurface pathways. The study found that the majority of irrigation water left fields through subsurface flow, highlighting the importance of understanding subsurface characteristics in return flow generation.
JOURNAL OF HYDROLOGY
(2021)
Article
Engineering, Geological
Hao Sun, Zhijun Wu, Liange Zheng, Yongtao Yang, Da Huang
Summary: This study investigates unsaturated soil-water interaction at the micro-scale using an extended numerical manifold method (NMM) and validates the proposed capillary water solving framework. The results suggest that the extended method is a potential tool to explore unsaturated soil behaviors at the micro-scale.
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
(2021)
Article
Agronomy
Rita Leogrande, Francisco Pedrero, Emilio Nicolas, Carolina Vitti, Giovanni Lacolla, Anna Maria Stellacci
Summary: This study evaluated the effects of long-term irrigation with reclaimed water on soil chemical and biological properties. The results showed that reclaimed water irrigation significantly increased the water extractable organic carbon, available phosphorus, magnesium, sodium content, and electrical conductivity in the soil. Although not statistically significant, the rates of respiration and enzymatic activities were higher in the reclaimed water treatment. This suggests that reclaimed water irrigation, while providing nutrients, may have beneficial effects on soil microorganisms and their activities in the long-term. However, proper management of wastewater should be recommended, especially in arid and semi-arid environments, to prevent soil degradation from salt accumulation.
Article
Agronomy
Yuhui Yang, Dongwei Li, Weixiong Huang, Xinguo Zhou, Zhaoyang Li, Xiaomei Dong, Xingpeng Wang
Summary: This study aimed to investigate the effects of subsurface drainage spacing on soil salinity and groundwater level. The results showed that subsurface drainage reduced soil salinity and effectively controlled the groundwater table. Decreasing the drain spacing further enhanced these effects.
Article
Agronomy
Chunyu Wang, Sien Li, Mousong Wu, Wenxin Zhang, Zhenyu Guo, Siyu Huang, Danni Yang
Summary: Agroecosystem photosynthesis is crucial for addressing global climate change. The interaction between environmental factors and their effects on gross primary productivity (GPP) in farmland, particularly in water-saving agriculture, remains insufficiently understood. This study on maize fields in Northwest China found that soil temperature, canopy temperature, and vapor pressure deficit had the greatest impact on GPP, and the effects of irrigation and mulching varied under different methods.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Plant Sciences
Michele Denora, Vincenzo Candido, Gennaro Brunetti, Francesco De Mastro, Sapia Murgolo, Cristina De Ceglie, Carlo Salerno, Giuseppe Gatta, Marcella Michela Giuliani, Andi Mehmeti, Ruud P. Bartholomeus, Michele Perniola
Summary: The reuse of treated wastewater for crop irrigation is crucial in water-scarce semi-arid regions, but concerns exist regarding the accumulation of emerging contaminants (ECs) in irrigated crops and their potential entry into the food chain. A pilot-scale study in southern Italy investigated the uptake, accumulation, and translocation processes of ECs in tomato plants irrigated with treated wastewater. The study revealed different behaviors of ECs between different irrigation strategies, highlighting the potential for ECs to be taken up by plants and posing concerns for human and environmental health.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Environmental Studies
Daniel G. Gomez, Carlos G. Ochoa, Derek Godwin, Abigail A. Tomasek, Maria I. Zamora Re
Summary: This study aims to quantify soil water balance components in pasture fields in western Oregon, USA, and evaluate the relationship between soil moisture and shallow aquifer recharge in irrigated vs. non-irrigated fields. The results contribute to a better understanding of seasonal water transport in agroecological systems with fine-textured soils in the Pacific Northwest region of the United States.
Article
Water Resources
Weishu Wang, Xingwang Wang, Zailin Huo, Yao Rong, Quanzhong Huang, Guanhua Huang
Summary: This study investigated the variation and attribution of water use efficiency (WUE) in irrigated farmlands in a semi-arid region of China. Results showed that sunflower had a lower WUE compared to maize, and WUE of both crops was negatively correlated with factors like vapor pressure deficit and soil water content. Vapor pressure deficit was identified as the main factor affecting WUE, followed by net radiation and soil water content. The study provides insights into the coupling effect of water and carbon fluxes in arid and semi-arid irrigation areas, with implications for agricultural production and water resource management.
HYDROLOGICAL PROCESSES
(2021)
Article
Soil Science
A. V. Yudina, V. V. Klyueva, K. A. Romanenko, D. S. Fomin V. V. Dokuchaev
Summary: Soil microaggregates are important building units of soil structure and play a significant role in determining the water-stability of soil. The content and size of microaggregates have a strong influence on the water-stability of macroaggregates.
Article
Agronomy
Lidong Li, Liwang Ma, Zhiming Qi, Quanxiao Fang, R. Daren Harmel, Marty R. Schmer, Virginia L. Jin
Summary: This study measured and simulated the effects of different management practices, including irrigation, stover retention, and cover crop use, on soil N2O emissions in a long-term continuous corn system. The results showed that reducing stover retention could decrease soil N2O emissions and deficit irrigation could reduce soil N2O emissions in the presence of cover crops. This study improves our understanding of the mechanisms behind the effects of agricultural management on soil N2O emissions.
EUROPEAN JOURNAL OF AGRONOMY
(2023)
Article
Agriculture, Multidisciplinary
Wenzheng Tang, Haosheng Yang, Wene Wang, Dianyu Chen, Can Xu, Qing Zha, Xiaotao Hu
Summary: This study evaluated the impact of water allocation processes on soil greenhouse gas emissions and potential drivers of the global warming potential in apple orchards under drip irrigation technology. The results showed that drip irrigation increased soil water content and evaporation, affecting gas emissions. Therefore, optimizing the use of drip irrigation water is necessary to reduce greenhouse gas emissions.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2022)
