Agricultural Water Management最新文献

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Water and heat resource utilization influence cotton yield through sowing date optimization under varied climate 在不同气候条件下,水热资源利用通过播期优化影响棉花产量
IF 5.9 1区 农林科学
Agricultural Water Management Pub Date : 2025-04-26 DOI: 10.1016/j.agwat.2025.109491
Hamad Khan , Nangial Khan , Zeeshan Khan , Han Yingchun , Yang Beifang , Lei Yaping , Zhi Xiaoyu , Xiong Shiwu , Shang Shilong , Ma Yunzhen , Jiao Yahui , Lin Tao , Yabing Li
{"title":"Water and heat resource utilization influence cotton yield through sowing date optimization under varied climate","authors":"Hamad Khan ,&nbsp;Nangial Khan ,&nbsp;Zeeshan Khan ,&nbsp;Han Yingchun ,&nbsp;Yang Beifang ,&nbsp;Lei Yaping ,&nbsp;Zhi Xiaoyu ,&nbsp;Xiong Shiwu ,&nbsp;Shang Shilong ,&nbsp;Ma Yunzhen ,&nbsp;Jiao Yahui ,&nbsp;Lin Tao ,&nbsp;Yabing Li","doi":"10.1016/j.agwat.2025.109491","DOIUrl":"10.1016/j.agwat.2025.109491","url":null,"abstract":"<div><div>Drought threatens to destroy almost 70 % of the world's cotton supply. Optimizing sowing dates is an agricultural strategy that may help synchronize ecology and productivity. Field data on the coupling impact of various environmental resources on cotton and its response to climate change under sowing date control is still lacking, though. This study examined how resource use efficiencies like water use efficiency (WUE), water consumption, water productivity and heat production efficiency (PEsoil) changed during six sowing dates (S1-S6) over two years (2023 and 2024), characterized by distinct temperature and rainfall. Results revealed that in 2023, optimal climatic conditions and well-timed rainfall events led to a maximum seed cotton yield under S4 (+178 % increase), whereas late sowing (S6) led to a −10 % decrease compared to S1. However, in 2024, delayed sowing had a more adverse impact, with yield declined up to −39 %, likely due to irregular rainfall and suboptimal temperature distribution during critical reproductive stages. The highest water use amounted to the flowering and boll development stages, exceeding 700 mm in late sowing treatments. However, WUE and WPc in delayed sowing were substantially lower than in early sowing, indicating inefficient resource conversion. Furthermore, statistical analysis of year-to-year specific positive correlations with resource use metrics were found to be significant with seed cotton yield. In 2023, WUE (R² = 0.8350), WPc (R² = 0.7189), and PEsoil (R² = 0.8586) were correlated (strongly) with early sowing dates (S1 and S2) due to optimal timing of growth stages with respect to temperature and rainfall regimes. Though the overall R<sup>2</sup> values were slightly reduced with changed rainfall pattern and cooler peak temperatures, early sowing still had a positive correlation with WUE (R<sup>2</sup> = 0.81), WPc (R<sup>2</sup> = 0.69), and PEsoil (R<sup>2</sup> = 0.78) during 2024, implying stable performance under variable climatic conditions. Similarly, these early sowing treatments also had more stable aboveground biomass, had higher LAI and demonstrated the ability to synchronize phenological state with hydrothermal availability. Principal component analysis (PCA) also confirmed that early sowing increased resource use coupling and yield resilience under the two climatic years. This study introduces a novel integration of temporal sowing optimization, multi-sensor environmental monitoring, and resource coupling analysis. Future studies should focus on integrating climate forecasting models with sowing date recommendations to enable dynamic, site-specific cotton management.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"313 ","pages":"Article 109491"},"PeriodicalIF":5.9,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874545","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}
引用次数: 0
Coordination of abscisic acid and hydraulic signals in stomatal closure and yield of soybean genotypes with varying isohydry under different water conditions 不同水分条件下不同等水含量大豆基因型气孔关闭和产量中脱落酸和水力信号的协调
IF 5.9 1区 农林科学
Agricultural Water Management Pub Date : 2025-04-25 DOI: 10.1016/j.agwat.2025.109495
Sanwei Yang , Haixia Zhang , Yi Jin , Neil C. Turner , Jiayin Pang , Yinglong Chen , Jin He
{"title":"Coordination of abscisic acid and hydraulic signals in stomatal closure and yield of soybean genotypes with varying isohydry under different water conditions","authors":"Sanwei Yang ,&nbsp;Haixia Zhang ,&nbsp;Yi Jin ,&nbsp;Neil C. Turner ,&nbsp;Jiayin Pang ,&nbsp;Yinglong Chen ,&nbsp;Jin He","doi":"10.1016/j.agwat.2025.109495","DOIUrl":"10.1016/j.agwat.2025.109495","url":null,"abstract":"<div><div>Understanding soybean responses to drought stress is critical for breeding drought-tolerant varieties. The extent of stomatal regulation of leaf water potential during drought stress can be characterized by the degree of isohydry. We hypothesize that abscisic acid (ABA) and hydraulic signals, two key factors influencing stomatal regulation, coordinate differently to regulate stomatal closure and impact yield performance under varying drought intensities in soybeans with different isohydric behaviors. To test this, we selected four landraces and four modern cultivars exhibiting diverse isohydric behaviors and conducted a progressive drought experiment. The experiment measured stomatal conductance, photosynthetic rate (P<sub>n</sub>), and leaf hydraulic conductance (K<sub>leaf</sub>) as soil moisture progressively declined. Additionally, a water control experiment assessed foliar ABA content, osmotic adjustment (OA), and yield components under moderate (50 % pot capacity) and severe stress (30 % pot capacity) drought stress were compared relative to well-watered conditions. Results showed that modern cultivars, characterized by more isohydric behavior, produced higher ABA levels, triggering earlier stomatal closure at higher soil water content, which was subsequently modulated by hydraulic signals during prolonged drought. Isohydric genotypes also displayed enhanced OA, enabling them to maintain high P<sub>n</sub> under severe drought stress. Under moderate drought stress, the isohydric cultivars experienced greater yield lose (21 % and 25 % for two isohydric cultivars vs. −8 % and 1 % for two landraces) and increased less water use efficiency for grain (WUEg). However, under severe drought stress, isohydric genotypes suffered less yield reduction (70 % and 72 % for isohydric cultivars vs. 79 % and 77 % for two anisohydric landraces) and increased more WUEg compared to anisohydric genotypes. Overall, isohydric genotypes, which exhibit a more conservative water-use strategy, are better suited for regions prone to severe drought stress. In contrast, anisohydric genotypes may perform better in regions with more reliable water availability.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"313 ","pages":"Article 109495"},"PeriodicalIF":5.9,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143868853","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}
引用次数: 0
Accounting for biomass water equivalent variations in soil moisture retrievals from cosmic ray neutron sensor 宇宙射线中子传感器土壤水分反演中生物质水当量变化的计算
IF 5.9 1区 农林科学
Agricultural Water Management Pub Date : 2025-04-25 DOI: 10.1016/j.agwat.2025.109493
Samer K. Al-Mashharawi , Susan C. Steele-Dunne , Marcel M. El Hajj , Martin Schrön , Claude Doussan , Dominique Courault , Trenton E. Franz , Matthew F. McCabe
{"title":"Accounting for biomass water equivalent variations in soil moisture retrievals from cosmic ray neutron sensor","authors":"Samer K. Al-Mashharawi ,&nbsp;Susan C. Steele-Dunne ,&nbsp;Marcel M. El Hajj ,&nbsp;Martin Schrön ,&nbsp;Claude Doussan ,&nbsp;Dominique Courault ,&nbsp;Trenton E. Franz ,&nbsp;Matthew F. McCabe","doi":"10.1016/j.agwat.2025.109493","DOIUrl":"10.1016/j.agwat.2025.109493","url":null,"abstract":"<div><div>Cosmic ray neutron sensor (CRNS) has gained popularity in the last decade for its suitability in estimating area-averaged soil moisture (SM). The presence of fresh biomass influences the CRNS signal due to its water content, introducing bias to soil moisture estimation. Calibration and correction methods have been developed to account for this bias, but they usually require laborious sampling. Here, a novel approach is tested to assess the impact of biomass water equivalent (BWE) on CRNS soil moisture estimation. It was conducted in two contrasting environments from 15/11/21–1/02/23 for an olive orchard in Saudi Arabia, and from 15/02/22–30/03/23 for a cherry orchard in France. Water-uptake rates were monitored using sap flow sensors, as well as actual evapotranspiration (AET) and in-situ SM within the CRNS footprint. Concurrent environmental variables were also measured with a research-grade weather stations. It was found that when vapor pressure deficit (VPD) &gt; 1.8kPa, CRNS-derived SM (CRNS-SM) closely matched in-situ SM measurements, which indicates minimal influence from BWE. Conversely, when VPD is lower than 1.8kPa, CRNS-SM overestimates the in-situ moisture. An optimization approach was used to find a temporally-varying value of N<sub>0</sub> parameter that minimizes the difference between soil moisture estimated with CRNS and in-situ sensors. Furthermore, the results showed that the relative change in the optimized value of N<sub>0</sub> (N<sub>0,opt</sub>) was well correlated with VPD in both orchards (R<sup>2</sup> = 0.66 for olive and R<sup>2</sup> = 0.74 for cherry orchards), indicating a strong correlation between these variables. These findings suggest that integrating VPD and CRNS observations, and using the VPD-N<sub>0,opt</sub> correlation approach could be a promising way to account for the bias due to biomass dynamics on the estimation of area-averaged SM.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"313 ","pages":"Article 109493"},"PeriodicalIF":5.9,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143868852","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}
引用次数: 0
Hazard assessment of compound drought and heat events on summer maize from agricultural and meteorological perspectives 从农业和气象角度评价夏玉米干热复合事件的危害
IF 5.9 1区 农林科学
Agricultural Water Management Pub Date : 2025-04-19 DOI: 10.1016/j.agwat.2025.109479
Qing Li , Peijuan Wang , Yang Li , Junxian Tang , Xin Li , Yuanda Zhang , Dianchen Han , Qi Wang , Yuncheng Zhao , Zaiqiang Yang
{"title":"Hazard assessment of compound drought and heat events on summer maize from agricultural and meteorological perspectives","authors":"Qing Li ,&nbsp;Peijuan Wang ,&nbsp;Yang Li ,&nbsp;Junxian Tang ,&nbsp;Xin Li ,&nbsp;Yuanda Zhang ,&nbsp;Dianchen Han ,&nbsp;Qi Wang ,&nbsp;Yuncheng Zhao ,&nbsp;Zaiqiang Yang","doi":"10.1016/j.agwat.2025.109479","DOIUrl":"10.1016/j.agwat.2025.109479","url":null,"abstract":"<div><div>Hazard assessment serves as the foundation for agricultural climate disaster risk assessment. As the impact of compound drought and heat events on agricultural production continues to intensity, this study constructed a hazard assessment model using a compound magnitude index improved by pre-factors and joint probabilities fitted with optimal copula functions. The aim was to compare and analyze the evolution characteristics and hazards of compound meteorological drought and heat events (CMDHEs) and compound agricultural drought and heat events (CADHEs) during different growth stages of summer maize. The results show that, across different growth stages of summer maize, SPRI and STCI, as well as SPI and STCI, exhibit negative correlations in different decades, with a stronger negative correlation between SPRI and STCI during the tasseling to maturity stage from 2011 to 2023. The pre-effect of meteorological drought in CMDHEs is higher than that of agricultural drought and heat in CADHEs. Our study also revealed a significant upward trend in CADHEs and CMDHEs since 2013 and 2017 during the tasseling to flowering stage. From sowing to tasseling, the hazard levels of CADHEs and CMDHEs were higher in the central and southern parts of Hebei Province and most regions of Henan Province. Compared to CMDHEs, CADHEs exhibit higher frequency and greater hazards across different growth stages of summer maize. These findings provide valuable insights for disaster prevention and mitigation of summer maize in the Huang-Huai-Hai Plain of China, ensuring food security and agricultural production.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"313 ","pages":"Article 109479"},"PeriodicalIF":5.9,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848537","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}
引用次数: 0
Modeling soil water and salinity dynamics in mangrove swamp rice production system of Guinea Bissau, West Africa 西非几内亚比绍红树林沼泽水稻生产系统土壤水盐动态模拟
IF 5.9 1区 农林科学
Agricultural Water Management Pub Date : 2025-04-19 DOI: 10.1016/j.agwat.2025.109494
Gabriel Garbanzo , Maria do Rosário Cameira , Paula Paredes , Marina Temudo , Tiago B. Ramos
{"title":"Modeling soil water and salinity dynamics in mangrove swamp rice production system of Guinea Bissau, West Africa","authors":"Gabriel Garbanzo ,&nbsp;Maria do Rosário Cameira ,&nbsp;Paula Paredes ,&nbsp;Marina Temudo ,&nbsp;Tiago B. Ramos","doi":"10.1016/j.agwat.2025.109494","DOIUrl":"10.1016/j.agwat.2025.109494","url":null,"abstract":"<div><div>Mangrove swamp rice production (MSRP) is of fundamental importance for the livelihoods, food security, and nutritional well-being of coastal populations in West Africa. However, this system faces increasing challenges due to its reliance on sufficient and well-distributed rainfall to maintain feasible soil salinity levels for rice production during the growing season. This study examines the dynamics of soil water and salts using field observations collected from four different MSRP fields in Guinea-Bissau during two growing seasons, along with simulations using the HYDRUS-1D model. Several rainfall and groundwater depth scenarios were also considered to identify the key factors contributing to soil salinity at the study sites. The results helped identify the main factors influencing soil salinity during the study period and estimate the potential impacts on crop yields, with could decline by up to 60 %. Key factors influencing soil salinity included the amount and distribution of seasonal rainfall, groundwater depth, and groundwater quality. The analysis of modeled scenarios also provided insights into effective management strategies for coping with soil salinization, particularly by assessing: a) where and when more productive, long-cycle rice varieties can still be cultivated; b) where salt-tolerant rice varieties have to be chosen. Additionally, the results reinforce the need for the regular maintenance of dikes and other drainage structures to avoid brackish water entrance and guaranty minimum rice growth conditions. Future research will explore adopting this practice in field with modern water management, with the model enabling precise analysis of impact on sustainability.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"313 ","pages":"Article 109494"},"PeriodicalIF":5.9,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848536","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}
引用次数: 0
Assessing sustainable water management in a resource-scarce environment (Ghana, West Africa) via the Analytic Hierarchy Process 通过层次分析法评估资源稀缺环境(西非加纳)的可持续水管理
IF 5.9 1区 农林科学
Agricultural Water Management Pub Date : 2025-04-19 DOI: 10.1016/j.agwat.2025.109497
Mattas Konstadinos , Georgiou Pantazis , Lazaridou C. Dimitra , Mattas Christos , Nastis A. Stefanos , Seddaiu Giovanna , Kombiok James Mantent , Adjebeng-Danquah Joseph , Ramson Adombilla
{"title":"Assessing sustainable water management in a resource-scarce environment (Ghana, West Africa) via the Analytic Hierarchy Process","authors":"Mattas Konstadinos ,&nbsp;Georgiou Pantazis ,&nbsp;Lazaridou C. Dimitra ,&nbsp;Mattas Christos ,&nbsp;Nastis A. Stefanos ,&nbsp;Seddaiu Giovanna ,&nbsp;Kombiok James Mantent ,&nbsp;Adjebeng-Danquah Joseph ,&nbsp;Ramson Adombilla","doi":"10.1016/j.agwat.2025.109497","DOIUrl":"10.1016/j.agwat.2025.109497","url":null,"abstract":"<div><div>Fresh water is indisputably a vital resource in ecosystems and its scarcity threatens the economy and society. Due to climate change, economic growth and unsustainable water management, water systems have become depleted and very contaminated worldwide. The scarcity and ecological degradation of water resources have threatened the sustainability of human life, socio-economic development and ecosystem services. The key element in an efficient management is the dynamic assessment of the status of water resources. Thus, this work developed a comprehensive evaluation indicator system based on the Driver-Pressure-State-Impact-Response (DPSIR) framework, combined with the Analytic Hierarchy Process (AHP).</div><div>The study offers an applied-friendly way of assessing sustainable water management in a resource-scarce environment through a stakeholder engagement approach. This facilitates assessing and reporting the state of water resources in a selected watershed in Ghana. The analysis highlights the components of climate regime and mining activities to demonstrate the greater threats to the water systems of the region. The results clearly illustrate that strengthening stakeholders’ involvement, improvement of infrastructure and implementation of the existing policies are among the higher-ranked responses that would guarantee the sustainability of water resources in the region. Furthermore, the research provides detailed information on human activities and their impacts on water systems in a quick and easy way for local stakeholders and policymakers, so as to support sustainable water management. The overall approach can be easily implemented and expanded in several water management cases.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"313 ","pages":"Article 109497"},"PeriodicalIF":5.9,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850868","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}
引用次数: 0
Optimal cropping patterns and intertemporal groundwater usage under extraction constraints in Oklahoma’s panhandle 俄克拉何马州狭长地带开采限制下的最佳种植模式和跨期地下水利用
IF 5.9 1区 农林科学
Agricultural Water Management Pub Date : 2025-04-19 DOI: 10.1016/j.agwat.2025.109472
Lixia H. Lambert , Yiqing Yao , Lucia R. Levers
{"title":"Optimal cropping patterns and intertemporal groundwater usage under extraction constraints in Oklahoma’s panhandle","authors":"Lixia H. Lambert ,&nbsp;Yiqing Yao ,&nbsp;Lucia R. Levers","doi":"10.1016/j.agwat.2025.109472","DOIUrl":"10.1016/j.agwat.2025.109472","url":null,"abstract":"<div><div>Managing water resources is particularly important in the semi-arid Southern Great Plains of the United States. Surface water supply is limited compared to the extensive yet overly exploited groundwater resources of the Ogallala Aquifer. The region’s irrigators often encounter a reduced water table and tradeoffs between prolonging groundwater life and maximizing the profitability of irrigated agriculture. This research determines the optimal inter-temporal groundwater and land allocation to row crop production over time with varied ten-year water extraction rates, discount rates, and energy prices. A hydro-economic model is developed for Oklahoma’s Texas County, the state’s largest groundwater user. The model maximizes the Net Present Value (NPV) for producers, subject to resource constraints and a ten-year planning horizon. Results show higher water extraction rates significantly decrease the water table and overall profitability. With lower water extraction rates over ten years, dryland sorghum is a suitable replacement for irrigated maize. Higher energy costs did not show a significant influence on optimal cropping patterns and water usage paths when the water extraction rate is low. Results under different discount rates indicate that if producers put less weight on current costs and income, their total returns on irrigation water could increase over time with less water extraction.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"313 ","pages":"Article 109472"},"PeriodicalIF":5.9,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848535","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}
引用次数: 0
Surface-subsurface modeling of water dynamics in drained and farmed wetlands in the prairie pothole region 草原坑穴区排水和人工湿地水动力学的地表-地下模拟
IF 5.9 1区 农林科学
Agricultural Water Management Pub Date : 2025-04-19 DOI: 10.1016/j.agwat.2025.109477
Alejandro Gomez , Antonio Arenas , Keith E. Schilling
{"title":"Surface-subsurface modeling of water dynamics in drained and farmed wetlands in the prairie pothole region","authors":"Alejandro Gomez ,&nbsp;Antonio Arenas ,&nbsp;Keith E. Schilling","doi":"10.1016/j.agwat.2025.109477","DOIUrl":"10.1016/j.agwat.2025.109477","url":null,"abstract":"<div><div>A hydrologic model was developed to investigate the surface ponding dynamics in a pothole complex in Iowa's prairie pothole region. This study includes a description of the ponding process, the identification of the main drivers of surface ponding, and an analysis of ponding depth and duration. The modeling was based on Saint-Venant and Richard’s equations to calculate overland and groundwater flows, respectively, using a coupled surface-subsurface approach. The model simulated eleven years (2011–2021) and was calibrated and validated using three datasets: water table measurements, surface ponding estimated from satellite images, and satellite-based estimates of evapotranspiration. Based on the simulations, the ponding process starts with direct precipitation and overland flow moving toward the pothole. Once water reaches the pothole, it infiltrates and percolates causing the water table to rise until it eventually reaches the ground surface. Surface ponding begins when the soil beneath the pothole is fully saturated and continues until the excess water is removed through evapotranspiration and the tile drainage network. Results indicate that surface ponding is primarily driven by overland flow, with 64.1 % from direct precipitation and 35.9 % from runoff, while groundwater rise has a negligible contribution. The model results indicate an average infiltration rate of 25 mm/day and average ponding depth and duration of 6.8 cm and 3.6 days, respectively. Analysis of the simulated ponding duration reveals a reduction in crop yield in 2 of the 11 years, with total crop loss occurring in 6 of those years.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"313 ","pages":"Article 109477"},"PeriodicalIF":5.9,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848538","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}
引用次数: 0
Endophytic fungi enhance drought tolerance in Fagopyrum tataricum: Insights into flavonoid biosynthesis and photosynthetic pathways 内生真菌增强荞麦的耐旱性:黄酮类生物合成和光合途径的见解
IF 5.9 1区 农林科学
Agricultural Water Management Pub Date : 2025-04-19 DOI: 10.1016/j.agwat.2025.109496
Yujie Jia , Qiqi Xie , Jiwen Tao , Yixin Chen , Yixuan Qi , Hongying Zhu , Tongliang Bu , Xinyu Zhang , Yirong Xiao , Zhao Chen , Qingfeng Li , Zizhong Tang , Ming Yuan
{"title":"Endophytic fungi enhance drought tolerance in Fagopyrum tataricum: Insights into flavonoid biosynthesis and photosynthetic pathways","authors":"Yujie Jia ,&nbsp;Qiqi Xie ,&nbsp;Jiwen Tao ,&nbsp;Yixin Chen ,&nbsp;Yixuan Qi ,&nbsp;Hongying Zhu ,&nbsp;Tongliang Bu ,&nbsp;Xinyu Zhang ,&nbsp;Yirong Xiao ,&nbsp;Zhao Chen ,&nbsp;Qingfeng Li ,&nbsp;Zizhong Tang ,&nbsp;Ming Yuan","doi":"10.1016/j.agwat.2025.109496","DOIUrl":"10.1016/j.agwat.2025.109496","url":null,"abstract":"<div><div><em>Fagopyrum tataricum</em>, a nutritionally valuable buckwheat species, is increasingly recognized for its rich flavonoid content. However, its cultivation faces mounting challenges due to drought stress, a problem exacerbated by global climate change. While endophytic fungi have demonstrated potential in enhancing plant drought resistance, their application in <em>F. tataricum</em> and the underlying mechanisms remain underexplored. In this study, two endophytic fungal strains, <em>Botryosphaeria dothidea</em> J46 and <em>Irpex lacteus</em> J79, were isolated and screened for their drought-resistance-promoting effects in <em>F. tataricum</em>. Pot experiments demonstrated successful root colonization of <em>F. tataricum</em> by inoculating these strains under drought conditions. Both <em>Botryosphaeria dothidea</em> J46 and <em>Irpex lacteus</em> J79 promoted root growth, increasing the fresh weight of <em>F. tataricum</em> roots by 49.94 % and 48.80 %, respectively. The content of flavonoids, an important bioactive compound in <em>F. tataricum</em>, was also enhanced. J46 and J79 increased flavonoid content in the leaves of <em>F. tataricum</em> by 28.39 % and 19.54 %, respectively, and in the seeds by 17.79 % and 14.06 %, respectively. Metabolite analysis revealed elevated levels of osmotic regulatory substances and antioxidants, while photosynthetic inhibition caused by drought stress was effectively alleviated upon fungal inoculation. Integrated metabolomic and transcriptomic analyses revealed distinct mechanisms of action for the two strains: <em>B. dothidea</em> J46 upregulated key genes in the flavonoid biosynthesis pathway, including Cinnamate-4-hydroxylase (C4H), Chalcone synthase (CHS), and Chalcone isomerase (CHI), whereas <em>I. lacteus</em> J79 enhanced the expression of genes associated with photosynthesis. Specifically, <em>B. dothidea</em> J46 promotes the plant’s drought resistance by enhancing the expression of genes in the flavonoid biosynthesis pathway, while <em>I. lacteus</em> J79 improves the plant’s photosynthetic efficiency under drought conditions by increasing the activity of genes associated with photosynthesis. Future research will focus on exploring the combined effects of multiple fungal strains, conducting field trials to assess practical applicability, and further elucidating the metabolic pathways involved. This study provides critical insights into the metabolic and molecular mechanisms underlying endophyte-mediated drought resistance, offering a foundation for the development of microbial agents to support the sustainable cultivation of F. tataricum under water-limited conditions.</div></div>","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"313 ","pages":"Article 109496"},"PeriodicalIF":5.9,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850869","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}
引用次数: 0
Corrigendum to “Optimized fertilizer management strategy based on ridge–furrow planting pattern enhances dryland wheat yield and water utilization on the Loess Plateau” [Agric. Water Manag. 311 (2025) 109391] “基于垄沟种植模式的优化肥料管理策略提高黄土高原旱地小麦产量和水分利用”[农业]。水管理。311 (2025)109391]
IF 5.9 1区 农林科学
Agricultural Water Management Pub Date : 2025-04-18 DOI: 10.1016/j.agwat.2025.109441
Jun Xing , Guojun Liu , Wenbo Zhai , Tong Gou , Zuoyan Zhou , Ai Hu , Kai Zhang , Dong Bai , Aixia Ren , Zhiqiang Gao , Min Sun
{"title":"Corrigendum to “Optimized fertilizer management strategy based on ridge–furrow planting pattern enhances dryland wheat yield and water utilization on the Loess Plateau” [Agric. Water Manag. 311 (2025) 109391]","authors":"Jun Xing ,&nbsp;Guojun Liu ,&nbsp;Wenbo Zhai ,&nbsp;Tong Gou ,&nbsp;Zuoyan Zhou ,&nbsp;Ai Hu ,&nbsp;Kai Zhang ,&nbsp;Dong Bai ,&nbsp;Aixia Ren ,&nbsp;Zhiqiang Gao ,&nbsp;Min Sun","doi":"10.1016/j.agwat.2025.109441","DOIUrl":"10.1016/j.agwat.2025.109441","url":null,"abstract":"","PeriodicalId":7634,"journal":{"name":"Agricultural Water Management","volume":"313 ","pages":"Article 109441"},"PeriodicalIF":5.9,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906848","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}
引用次数: 0
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