Agricultural Water Management最新文献

{"title":"Regulation of photosynthetic performance and dry matter accumulation through water and fertilizer management to enhance yield of tomato cultivated in yellow sand substrate","authors":"Yalong Song ,&nbsp;Jiahui Xu ,&nbsp;Shuo Zhang ,&nbsp;Jianfei Xing ,&nbsp;Xufeng Wang ,&nbsp;Long Wang ,&nbsp;Can Hu ,&nbsp;Wentao Li","doi":"10.1016/j.agwat.2025.109795","DOIUrl":"10.1016/j.agwat.2025.109795","url":null,"abstract":"<div><div>Soil degradation and water scarcity are major constraints for agriculture in arid and semi-arid regions. Yellow sand substrates, characterized by low cation exchange capacity, high permeability, and poor water and nutrient retention, have significant potential for use in agricultural facilities in arid regions, such as southern Xinjiang. However, the mechanisms by which yellow sand substrates affect crop photosynthetic performance, dry matter accumulation, and yield throughout the growth cycle remain poorly understood. To address this gap, a two-year (2023–2024) solar greenhouse experiment was conducted with four irrigation levels (I1: 100 % ETc, I2: 85 % ETc, I3: 70 % ETc, I4: 55 % ETc) and three fertilization rates (F1: 120 % F0, F2: 100 % F0, F3: 80 % F0) to analyze the responses of tomato growth, photosynthesis, and yield under different water–fertilizer regimes in yellow sand substrates. A multi-objective evaluation framework was applied, combining a Nash equilibrium-based integration of subjective and objective weighting with an improved TOPSIS method incorporating a virtual ideal solution to comprehensively assess seven key indicators, including growth, photosynthesis, and yield. The results showed that irrigation and fertilization significantly affected root dry weight at the seedling stage(S-RDW), leaf dry weight at the flowering and fruiting stages(F-LDW), fruit dry matter (FDM) content, chlorophyll content at the flowering and fruiting stages(F-CHl), and net photosynthetic rate at the seedling stage(S-Pn). Pearson’s correlation analysis identified seven phenotypic indicators significantly correlated with yield (Y). Path analysis further revealed that FDM had the strongest direct effect on Y, followed by RDW, at the seedling stage. Moderate deficit irrigation (70–85 % ETc) combined with medium-to-high fertilization (100–120 % F0) significantly increased yield and water use efficiency (WUE). Under cultivation with a yellow sand substrate, this water-fertilizer combination optimally enhanced photosynthetic performance, promoted dry matter accumulation, and stabilized yield, thereby enabling both water savings and increased yield. These findings offer a theoretical foundation and technical guidance for the development of water-efficient, high-yield, and sustainable facility agriculture in the Gobi Desert and other arid regions.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"319 ","pages":"Article 109795"},"PeriodicalIF":6.5,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Slow-release fertilizers mitigate brackish water stress in rice: Boosting yield and nitrogen use efficiency in saline soils","authors":"Yue Dong ,&nbsp;Yiting Hu ,&nbsp;Xiuchao Song ,&nbsp;Shiwei Guo ,&nbsp;Yan Ma ,&nbsp;Pengfu Hou ,&nbsp;Hong Wang ,&nbsp;Jidong Wang","doi":"10.1016/j.agwat.2025.109790","DOIUrl":"10.1016/j.agwat.2025.109790","url":null,"abstract":"<div><div>Rice cultivation with brackish water irrigation represents an effective practice to ameliorate coastal saline soils, while the application of slow and controlled release fertilizers (SCRFs) further mitigates its adverse effects on nitrogen (N) use efficiency. This study conducted a field soil column experiment with coastal saline soils (soil salinity: 2.20 g kg⁻¹) to evaluate the combined impact of brackish water irrigation (fresh water: 0.15 g L⁻¹, brackish water: 1.00–1.50 and 1.35–2.00 g L⁻¹) and N fertilizer types (urea, polyurethane-coated urea (PCU), and urea formaldehyde) on rice yield and N use efficiency, addressing the critical challenge of water-fertilizer management in coastal saline regions. Results showed that compared with fresh water irrigation, brackish water irrigation significantly inhibited the growth of rice root, leading to a significant reduction in root morphological characteristics(<em>P</em> &lt; 0.05). This inhibitory effect was particularly pronounced under the higher salinity treatment (W3). These reductions impaired nutrient and water absorption, leading to a decrease in crop yield and agronomic nitrogen use efficiency (ANUE) (<em>P</em> &lt; 0.05). The application of SCRFs significantly promoted the development of fine root systems. Root length, tip number, branch number, and cross number under the SCRFs treatments were significantly higher than those under the urea treatment (<em>P</em> &lt; 0.05). As a result, SCRFs mitigated the negative effects of brackish water irrigation on rice yield and ANUE. Overall, our key practical recommendation for rice cultivation in coastal saline regions is as follows: irrigating with brackish water of salinity below 1.5 g L⁻¹, combined with basal application of PCU. This integrated water-fertilizer management strategy not only optimizes the utilization of unconventional brackish water resources but also enhances N fertilizer efficiency while ensuring stable crop yields. Thus, it provides a science-based and feasible practice for the sustainable utilization of coastal saline soils.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"319 ","pages":"Article 109790"},"PeriodicalIF":6.5,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145019781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable water management in sugar beet cultivation: Balancing irrigation efficiency and crop yield","authors":"Xiayu Long ,&nbsp;Peng Chen ,&nbsp;Ennan Zheng ,&nbsp;Fanxiang Meng ,&nbsp;Gui Geng ,&nbsp;Yanchao Zang ,&nbsp;Jianxun Yang","doi":"10.1016/j.agwat.2025.109791","DOIUrl":"10.1016/j.agwat.2025.109791","url":null,"abstract":"<div><div>Water-saving management strategies are crucial for sustainable sugar beet production. However, existing global research on water-saving irrigation (WSI) methods for sugar beets yields inconsistent conclusions regarding their effects on crop yield, necessitating further systematic evaluation. This study systematically evaluates the effects of three WSI methods—furrow, drip, and sprinkler irrigation—on sugar beet yield across varying climatic conditions, soil characteristics, and irrigation regimes. We conducted a comprehensive literature search in Google Scholar, China National Knowledge Infrastructure (CNKI), and Web of Science for peer-reviewed articles published before January 2024. Using keywords such as \"irrigation\" and \"sugar beet yield,\" we performed an exhaustive search with an expanded scope and manual screening. Based on strict inclusion/exclusion criteria, we selected 86 eligible articles comprising 706 datasets for meta-analysis. Key findings demonstrate that drip and sprinkler irrigation significantly increased sugar beet yield (p &lt; 0.05), whereas furrow irrigation showed no statistically significant improvement. Furrow irrigation was effective only in water-sufficient regions but underperformed in other environments. Drip irrigation exhibited optimal environmental adaptability, maintaining stable yields under water-deficient conditions, albeit with reduced effectiveness in neutral soils. Sprinkler irrigation improved yield in low-rainfall, high-temperature regions but displayed limited environmental adaptability. Notably, under high-temperature conditions, sprinkler irrigation exhibited significantly lower water-use efficiency than drip irrigation. Therefore, from a water conservation standpoint, drip irrigation is the superior choice in high-temperature environments. This study provides empirical evidence to support region-specific irrigation strategies, highlighting the comprehensive advantages of drip irrigation. Future research should integrate crop rotation cycles and fertilizer management to optimize irrigation practices for sugar beet production further.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"319 ","pages":"Article 109791"},"PeriodicalIF":6.5,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of agricultural drought disaster risk in Southwest China using fuzzy logic-based geospatial techniques","authors":"Mingxia Wang ,&nbsp;Yanping Qu ,&nbsp;Xingwang Wang ,&nbsp;Lilai Xu ,&nbsp;Yusen Ye ,&nbsp;Isaya Kisekka ,&nbsp;Jingyuan Xue","doi":"10.1016/j.agwat.2025.109785","DOIUrl":"10.1016/j.agwat.2025.109785","url":null,"abstract":"<div><div>Agricultural drought disasters greatly threaten sustainable social development. Quantitative assessment of agricultural drought disaster risk (ADDR) is essential for improving drought management. This study developed a comprehensive framework for assessing ADDR by selecting 16 indicators across four key dimensions: hazard, exposure, vulnerability and risk caused by insufficient mitigation capability (RIMC). Fuzzy logic-based geospatial techniques were then applied to assess ADDR in Southwest China during 2003–2020. Additionally, the relative contributions of key risk factors and the role of the irrigated farmland ratio in mitigating the ADDR were quantified. The results indicate that the Sichuan Basin, the central area where Yunnan, Sichuan, and Guizhou converge, along with northwestern Yunnan, exhibited the highest ADDR. The relative contributions of ADDR components varied spatially, with hazard and exposure dominating most regions. The threshold for the irrigated farmland ratio in mitigating ADDR was determined to be 7.18 %. Overall, the spatial information of ADDR and its components from this study provides crucial insights for mitigating ADDR.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"319 ","pages":"Article 109785"},"PeriodicalIF":6.5,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144989334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Virtual water and land dynamics: Decoding their asymmetric effects on food security across China","authors":"Zheng Wu ,&nbsp;Canran Lu ,&nbsp;Jiawen Li ,&nbsp;Guiliang Tian","doi":"10.1016/j.agwat.2025.109788","DOIUrl":"10.1016/j.agwat.2025.109788","url":null,"abstract":"<div><div>The flow of virtual water and land impacts the spatial imbalance of food production and consumption through inter-regional transfer of water and land resources. Studying food security from the perspective of virtual water and land is of great significance for further optimizing resource allocation and achieving sustainable development. China has a large population and significant regional differences in water and land resources. Therefore, this study takes China as a case study, analyzing the spatial and temporal processes and patterns of both inter-provincial virtual water and land net transfer volume and food security index, based on the calculation of their values using spatiotemporal trend methods. A fixed-effects regression model combined with an improved four-quadrant diagram is used to analyze the nonlinear relationship, characteristic types, and causes of the flow of virtual water and land and food security. The study found that: (1) From 2012–2019, the trend of virtual water and land flow in China gradually strengthened from north to south, and the overall change in the food security index showed a \"lower values lower, higher values higher, and stable intermediate values\" pattern, with the centroid of both continuously moving northward. (2) Food security showed an \"inverted U-shaped\" fluctuation trend with the expansion of the net transfer volume of virtual water and land. (3) Based on the improved four-quadrant diagram, the zones can be divided into: Self-sufficient Food Security Improvement Zone, Dependency-based Food Security Decline Zone, Water-scarce and Land-rich Stable Food Security Zone, and Water-rich and Land-scarce Stable Food Security Zone. Among them, the Dependency-based Food Security Decline Zone occupies the largest proportion, which continues to increase. The distribution of provinces in each quadrant tends to be clustered, with each quadrant exhibiting distinct characteristics, causes of formation, and development trends. Based on this, the paper further elaborates on the impact mechanism of virtual water and land flow on food security, proposes targeted development strategies for each region, and provides new perspectives for localized virtual water and land trade strategies and enhancing food security's resilience to risks.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"319 ","pages":"Article 109788"},"PeriodicalIF":6.5,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144926476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Balancing water use efficiency and carbon neutrality in mariculture: A multi-objective model for optimizing mariculture structure in China’s coastal provinces","authors":"Zuowen Tan ,&nbsp;Zhaocai Wang ,&nbsp;Han Li ,&nbsp;Qiran Song ,&nbsp;Yinzhe Ou ,&nbsp;Tunhua Wu","doi":"10.1016/j.agwat.2025.109756","DOIUrl":"10.1016/j.agwat.2025.109756","url":null,"abstract":"<div><div>Climate change poses a serious challenge to global food security and ecosystem stability. Past research has focused on optimizing the structure of agricultural farming systems, while mariculture, as an important player in food production and carbon cycle, urgently needs environmentally friendly and efficient management practices. This study proposes a multi-objective optimization model for sustainable mariculture system management, leveraging the water-energy-food-carbon nexus framework, aiming to optimize the configuration of mariculture structures under conditions of minimizing water footprint, maximizing food production and minimizing net carbon emissions. Firstly, the water and carbon footprints of each stage were evaluated based on life cycle assessment. Secondly, the carbon sequestration by shellfish and algae was calculated from biomass carbon and organic carbon deposition. Finally, an empirical study was conducted in China’s coastal areas. The high-dimensional adaptive whale optimization algorithm was applied to solve the complex model, and the optimal resource allocation strategy was determined using a membership function. The results indicate that shellfish and algae warrant a larger proportion of mariculture production. The mariculture structure in the best trade-off scheme effectively reduces the water footprint by 10.37 % and the carbon footprint by 2.17 %, while prioritizing increased grain production in regions with a comparative advantage in mariculture, such as Fujian, Liaoning, and Guangdong. In other optimization scenarios, the water footprint of the water-saving scheme decreased by 16.22 %, the grain yield of the high-yield scheme increased by 8.94 %, and the net carbon emissions of the low-carbon scheme were reduced by 2.86 %. The study also revealed significant differences in the carbon sink functions of various species. Oysters contributed 0.23 million tons of carbon sequestration, accounting for 31.2 % of the total. Additionally, <em>Porphyra spp.</em> exhibited the highest carbon sink intensity, reaching 1.57 kg CO₂eq/kg. The research findings provide new pathways and practical references for optimizing resource management in mariculture systems and exploring low-carbon emission solutions to address challenges such as global climate change and resource shortages.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"319 ","pages":"Article 109756"},"PeriodicalIF":6.5,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144926477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hierarchical distributed model predictive control for large-scale irrigation canal network under water scarcity condition: A case study of the Zhanghe Irrigation District, China","authors":"Guanghua Guan ,&nbsp;Zheli Zhu ,&nbsp;Zhonghao Mao ,&nbsp;Tianquan Feng ,&nbsp;Xiaomei Hu","doi":"10.1016/j.agwat.2025.109787","DOIUrl":"10.1016/j.agwat.2025.109787","url":null,"abstract":"<div><div>Irrigation canal networks play a vital role in ensuring water and food security, especially under water scarcity. To address the challenge of accurate water allocation and hydraulic regulation during such periods, this paper proposes a hierarchical distributed model predictive control (HDMPC) strategy. The HDMPC integrates a Decision-making layer, which optimizes daily water distribution based on economic, environmental, and social objectives, and a Control layer, which ensures real-time implementation through model predictive control. A water supply adequacy index is incorporated to improve the execution fidelity of the planned allocations. The method is applied to the Zhanghe Irrigation District in China and evaluated throughout the 96-day growth period of semilate rice under different water scarcity scenarios. Compared to traditional manual control, the HDMPC improves rice yield, economic benefits, and clean energy production by 14.6 %–17.7 %, while maintaining hydraulic stability. This study provides a practical framework for precision irrigation and sustainable canal system management under resource-constrained conditions.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"319 ","pages":"Article 109787"},"PeriodicalIF":6.5,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144924977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Maize (Zea mays L.) yields and water productivity as affected by cowpea (Vigna unguiculata (L.) Walp.) intercropping over five consecutive growing seasons in a semi-arid environment in Kenya","authors":"Juuso Tuure ,&nbsp;Kevin Z. Mganga ,&nbsp;Pirjo S.A. Mäkelä ,&nbsp;Matti Räsänen ,&nbsp;Petri Pellikka ,&nbsp;Sheila Wachiye ,&nbsp;Laura Alakukku","doi":"10.1016/j.agwat.2025.109779","DOIUrl":"10.1016/j.agwat.2025.109779","url":null,"abstract":"<div><div>Research on maize (<em>Zea mays</em> L.)–cowpea (<em>Vigna unguiculata</em> (L.) <em>Walp</em>.) intercropping in sub-Saharan drylands, especially involving continuous measurements of soil water dynamics, remains limited. To address this gap, we conducted a field experiment in southeastern Kenya. The study aimed to assess whether intercropping enhances maize yields, quantify cowpea’s contribution to grain and biomass production, and evaluate its potential to improve water productivity for both maize and the overall cropping system. Using a randomized complete block design, we compared maize sole cropping and maize–cowpea intercropping systems by monitoring yield components, canopy height, leaf chlorophyll content, and soil water dynamics and assessing water productivity over five growing seasons (2019–2021). Observed maize yields averaged 2730 kg ha⁻¹ for sole cropping and 2281 kg ha⁻¹ for intercropping. Intercropping did not significantly compromise maize yields but led to reduced maize canopy height. No systematic increase in maize leaf chlorophyll content was observed in the intercrop. Cowpea provided modest benefits to the intercrop, primarily through vegetative mass rather than grain yield. Yields depended more on the timing of rainfall events than on the total rainfall amount. Intercropping did not significantly increase water productivity. Despite significant seasonal differences in observed yields and crop water use, water productivity remained statistically similar across season, indicating losses through evaporation. Our findings suggest that measures aimed at conserving soil moisture or reducing soil water depletion are likely to enhance the benefits of intercropping.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"319 ","pages":"Article 109779"},"PeriodicalIF":6.5,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144926475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Increased drip irrigation during heatwaves does not alter vineyard land surface temperature and evapotranspiration","authors":"Andrew Gal ,&nbsp;Nicolas Bambach ,&nbsp;Andrew J. McElrone ,&nbsp;Kyle Knipper ,&nbsp;Sophia Bagshaw ,&nbsp;Sebastian Castro-Bustamante ,&nbsp;Logan Ebert ,&nbsp;Martina Galeano ,&nbsp;Nicolas Raab ,&nbsp;Nick Dokoozlian ,&nbsp;Luis Sanchez ,&nbsp;Elisabeth Forrestel ,&nbsp;Mallika Nocco","doi":"10.1016/j.agwat.2025.109781","DOIUrl":"10.1016/j.agwat.2025.109781","url":null,"abstract":"<div><div>The frequency, duration, and intensity of heatwaves are threatening the stability of perennial crops, including winegrapes. Winegrapes are becoming increasingly irrigated with low-pressure, low-flow micro-irrigation systems (e.g., drip, micro-sprinklers) to address water scarcity. Heatwaves cause both heat and water stress in wine grapes, so growers commonly increase irrigation to cope with heatwaves. However, the effects of this practice on vineyard responses have not been extensively studied. We characterized biometeorological and physiological responses to different drip irrigation treatments surrounding three heatwaves in 2021 from the plant to vineyard scale using a combination of remote and proximal sensing approaches – satellite, drone, and tower-based methods – to quantify land surface temperature (LST) and actual evapotranspiration (ET_a). We further separated LST into canopy and soil components using a segmentation approach. Additionally, we measured soil water content and leaf-level vine responses including stomatal conductance, net photosynthesis, transpiration, stem and leaf water potentials, and radiometric leaf temperatures.</div><div>Reflecting standard viticultural practices, supplemental drip irrigation treatments were only implemented surrounding heatwaves and included 60 % (i.e., maintaining standard deficit irrigation), 90 %, and 120 % of the estimated crop evapotranspiration. Our key findings were: (1) moderate increases in drip irrigation increased transpiration, stomatal conductance, CO₂ assimilation, and yield with maximum daily ranges between treatments of 2.21 −4.00 mmol m⁻² s⁻¹, 0.06 −0.11 mol m⁻² s⁻¹, 5.82 −7.27 µmol m⁻² s⁻¹, and 16.3 −19.0 kg vine⁻¹, respectively. However, these physiological responses did not translate to differences in LST and ET_a, which did not vary between treatments by more than 1.5 °C or 1 mm day⁻¹, respectively; (2) LST and ET_a patterns followed the same ranking by treatment throughout the season, which did not align with or respond to differential drip irrigation treatments; (3) Soil surface temperatures also did not align with or respond to differential drip irrigation treatments. Findings from this study suggest that increased drip irrigation addresses vine water stress and increases leaf transpiration during heatwaves but does not provide the evaporative cooling benefits demonstrated by high-pressure, high-flow irrigation systems (e.g., center pivot irrigation). These findings can be used to inform optimal irrigation and heat management practices for agriculture during heatwaves.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"319 ","pages":"Article 109781"},"PeriodicalIF":6.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144921417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Changes in near-saturated infiltration and soil hydraulic characteristics due to wastewater irrigation in green space","authors":"Rozita Soltani Tehrani ,&nbsp;Mohammad Reza Mosaddeghi ,&nbsp;Majid Afyuni ,&nbsp;Shamsollah Ayoubi ,&nbsp;Mehran Shirvani ,&nbsp;Jos van Dam","doi":"10.1016/j.agwat.2025.109748","DOIUrl":"10.1016/j.agwat.2025.109748","url":null,"abstract":"<div><div>Using wastewater for irrigation introduces various ions and compounds into the soil which may have variable impacts on soil infiltrability and hydraulic characteristics. This study investigates the effects of irrigating with wastewater on soil hydraulic characteristics, crucial for plant growth. Specifically, the research focuses on the impact of effluent from the Mobarakeh Steel Complex located in Isfahan, Iran, over three different periods: 3, 7 and 19 years. Field experiments were conducted at 35 locations using a randomized block design. Sampling sites were selected based on three irrigation durations (3, 7, and 19 years) and two water sources (well water and treated wastewater), with non-irrigated areas serving as the control. The unsaturated 3D infiltration of water into the soil was measured using a tension infiltrometer. The collected data were analyzed using Wooding's analytical and DISC software’s numerical solutions. The saturated hydraulic conductivity of undisturbed soil samples was also evaluated using the constant-head method. The findings indicate that the use of wastewater for irrigation significantly reduces both the saturated and unsaturated hydraulic conductivity due to the presence of suspended particles and hydrophobic substances, which can block soil pores. Wastewater irrigation also decreases the steady-state flux rate and soil water sorptivity. Generally, both wastewater and well water had a similar effect on infiltration and soil hydraulic properties in the region. Consequently, the use of wastewater for irrigating green spaces may be considered as an option, provided that soil quality indicators are regularly monitored.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"319 ","pages":"Article 109748"},"PeriodicalIF":6.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144921418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}