Article
Agronomy
Minguo Liu, Mei Yang, Huimin Yang
Summary: This article presents an open-source software package called simET, which aims to accurately estimate crop evapotranspiration (ETc) and soil water balance. The package includes various functions and models for different crops.
Article
Environmental Sciences
Cristian Stefan Dumitriu, Alina Barbulescu, Carmen Elena Maftei
Summary: In this article, a new user-friendly tool called IrrigTool is proposed for assessing the irrigation rate considering several factors such as precipitation, temperature, evapotranspiration, soil type, and crop. The tool implements the Thornthwaite equations and provides graphical representation and comparison of the results.
Article
Environmental Sciences
Shudi Xie, Xingguo Mo, Suxia Liu, Shi Hu
Summary: Plant hydraulics plays an important role in predicting carbon and water fluxes and their responses to drought. By developing a plant hydraulic scheme and incorporating it into a vegetation interface processes model, the authors improved the simulation accuracy of evapotranspiration and gross primary production. These findings highlight the importance of including plant hydraulics in future Earth system models under drought conditions.
WATER RESOURCES RESEARCH
(2023)
Article
Agronomy
Jacopo Dari, Pere Quintana-Segui, Renato Morbidelli, Carla Saltalippi, Alessia Flammini, Elena Giugliarelli, Maria Jose Escorihuela, Vivien Stefan, Luca Brocca
Summary: This study aims to assess the impact of different modeling approaches on the detection of irrigation water usage by modeling the contribution of evapotranspiration. The results show that the FAO56 guidelines parametrization method proposed by the authors remains the most reliable configuration when using optical data.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Engineering, Civil
Huiyuan Liu, Xiaozhou Xin, Zhongbo Su, Yijian Zeng, Ting Lian, Li Li, Shanshan Yu, Hailong Zhang
Summary: This study evaluates ten globally available monthly evapotranspiration (ET) products at site and basin scales. The results show that all products perform comparably and there is no single product with the best performance. FLUXCOM and GLDAS have outstanding performance at site and basin scales, respectively, while SynthesisET performs suboptimally at both validation scales. This study contributes to identifying proper candidates for hydrological analysis and improving ET algorithm.
JOURNAL OF HYDROLOGY
(2023)
Article
Agronomy
Lucas E. B. Hoeltgebaum, Nelson Luis Dias
Summary: A thorough understanding of water budget components, specifically evapotranspiration and storage in the watershed, is crucial for effective water resources management and hydrological modeling. This study analyzes 13 years of hydrological data from two agricultural watersheds in Eastern Nebraska, United States to examine various aspects of the water budget, including water-and energy-balance closures, water budget residues, storage in soil layers, and evapotranspiration estimates. Remote-sensing data is also used to assess spatial variability in net radiation and soil moisture. The study finds that adjusting measured evapotranspiration to close the energy budget aligns with water budget estimates, and storage calculations using soil moisture and recession analysis produce the most accurate evapotranspiration estimates.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Engineering, Civil
Yazhen Jiang, Ronglin Tang, Zhao-Liang Li
Summary: In this paper, a physical and practical method for daily evapotranspiration (ET) reconstruction under cloudy sky was proposed. The method, which is constrained by soil water budget balance, was tested and validated using field data and remote sensing data. The results showed that the method has a good performance in reconstructing daily ET under cloudy sky and can be a potential alternative to the conventional interpolating/extrapolating methods.
JOURNAL OF HYDROLOGY
(2022)
Article
Geosciences, Multidisciplinary
Julien Ruffault, Francois Pimont, Herve Cochard, Jean-Luc Dupuy, Nicolas Martin-StPaul
Summary: A widespread increase in tree mortality has been observed globally, and this is expected to continue due to climate-induced increases in drought frequency and intensity. SurEau-Ecos is a trait-based, plant hydraulic model that can predict tree desiccation and mortality at different scales. It can be used to identify regions and ecosystems that are most vulnerable to drying conditions and assess forest flammability dynamics.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2022)
Article
Agronomy
M. G. Mostofa Amin, S. M. Mubtasim Mahbub, Md. Moudud Hasan, Wafa Pervin, Jinat Sharmin, Md. Delwar Hossain
Summary: This study evaluated the effects of straw and plastic mulching and organic manure application on water fluxes in the root zone and maize yield. The results showed that these practices increased soil water storage and improved grain yield.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Water Resources
Maoya Bassiouni, Stefano Manzoni, Giulia Vico
Summary: Plant responses to water stress affect water and carbon cycles and may have climate feedbacks, but characterizing these responses at the ecosystem level is uncertain. Quantifying ecosystem-level water use strategies is challenging due to difficulties in upscaling plant traits and disentangling environmental factors, limiting our understanding of global change in ecosystem dynamics and ecohydrological fluxes.
ADVANCES IN WATER RESOURCES
(2023)
Article
Water Resources
Jitka Kofronova, Vaclav Sipek, Jan Hnilica, Lukas Vlcek, Miroslav Tesar
Summary: The study compared several interception modelling approaches and found that a simple method of subtracting a constant value from each rainfall event was the most efficient. While there was a slight increase in RMSE for discharge and groundwater level, soil moisture did not show significant differences. The overestimation of transpiration rate was around 3-5% on average, highlighting the efficiency of simple interception models in hydrological modelling tasks focused on specific water fluxes in forested catchments.
HYDROLOGICAL SCIENCES JOURNAL
(2021)
Article
Engineering, Civil
Kun Zhang, Gaofeng Zhu, Ning Ma, Huiling Chen, Shasha Shang
Summary: Accurate estimation of terrestrial evapotranspiration (ET) is crucial for understanding the interaction between land and atmosphere. In this study, a new version of the simple terrestrial hydrosphere (SiTH) model, called SiTHv2, was developed to improve the model structure and parameters for better ET estimation. The SiTHv2 model was validated and compared at multiple scales with flux data, basin water balance data, and other global ET products. The results show that the SiTHv2 model outperforms the previous SiTHv1 model and ranks well compared to existing ET models and products.
JOURNAL OF HYDROLOGY
(2022)
Article
Environmental Sciences
Mohamed Hakim Kharrou, Vincent Simonneaux, Salah Er-Raki, Michel Le Page, Said Khabba, Abdelghani Chehbouni
Summary: This study successfully estimated crop evapotranspiration and irrigation water requirements in wheat fields and olive orchards in the Haouz plain using a remote sensing-based approach combined with the FAO-56 model. The results showed significant spatio-temporal variability in irrigation demands and supplies, likely due to insufficient irrigation supply or farmers' management practices. The findings demonstrate the potential of using remote sensing-based models for monitoring irrigation water usage for efficient and sustainable water resource management.
Article
Environmental Sciences
Lijun Chao, Ke Zhang, Jingfeng Wang, Jin Feng, Mengjie Zhang
Summary: The study compared the performance of five typical remote sensing evapotranspiration datasets and found that P-LSH and GLEAM performed the best at the annual scale, P-LSH outperformed the other four datasets at the seasonal scale, while MTE and PML showed higher accuracy in arid regions. MODIS and MTE tended to underestimate and overestimate ET values during estimation.
Article
Horticulture
E. B. Lulane, S. Dzikiti, T. Volschenk, E. Lotze, S. J. E. Midgley
Summary: Apple producers are using nets to address climate and pest-related challenges. This study found that under fixed nets, water use in apple orchards decreased and water saving benefits were smaller than expected.
SCIENTIA HORTICULTURAE
(2022)
Article
Agronomy
Zhe Gu, Tingting Zhu, Xiyun Jiao, Junzeng Xu, Zhiming Qi
Summary: In this study, a neural network ensemble method was used to predict soil moisture, achieving high accuracy by eliminating the effects of initial parameters on model accuracy.
Article
Agronomy
Yunhao An, Zhe Gu, Xiyun Jiao, Qi Wei, Junzeng Xu, Kaihua Liu
Summary: Winter irrigation has an impact on soil N2O emissions, with emission peaks occurring two days after irrigation, and cumulative N2O emissions increasing with increased irrigation.
Article
Agronomy
Xiaoping Chen, Shaoyuan Feng, Zhiming Qi, Matthew W. Sima, Fanjiang Zeng, Lanhai Li, Haomiao Cheng, Hao Wu
Summary: This study evaluated the irrigation water use efficiency in cotton production in Northwest China using the Root Zone Water Quality Model. Simulation results showed that the Irr650 treatment achieved the highest cotton seed yield and net income.
Article
Agronomy
Haomiao Cheng, Qilin Yu, Mohmed A. M. Abdalhi, Fan Li, Zhiming Qi, Tengyi Zhu, Wei Cai, Xiaoping Chen, Shaoyuan Feng
Summary: The drip fertigation technique is a modern and efficient irrigation method that can alleviate water scarcity and excess fertilizer in crop production. This study used the Root Zone Water Quality Model (RZWQM2) to assess the effects of different surface drip fertigation (SDF) managements on soil water content, leaf area index, plant height, and maize yield. The results showed that both irrigation and fertilization had multiple effects on water and nitrogen stresses. The calibrated model was also used to explore the optimal SDF scenarios for maximizing yield, water use efficiency (WUE), or nitrogen use efficiency (NUE). The RZWQM2 model proved to be a promising tool for evaluating SDF management and achieving optimal water and nitrogen inputs.
Article
Agricultural Engineering
Haiyu Wang, Zhe Gu, Junzeng Xu, Shuai Li, Zhiming Qi, Yawei Li, Jiaoyan Zhou
Summary: China currently relies on manual labour for fertilising paddy fields, which hinders the improvement of fertilisation uniformity and efficiency. This study developed an automatic fertilisation system that accurately controls the flowrate of fertiliser based on the irrigation flowrate, resulting in improved uniformity and precision of fertilisation. The system reduces labour costs, enhances management efficiency, decreases potential pollution, and contributes to the development of precision agriculture.
BIOSYSTEMS ENGINEERING
(2022)
Article
Environmental Sciences
Jiaxin Wang, Zhiming Qi, Elena M. Bennett
Summary: Human activities have had a significant impact on global phosphorus cycling, and the long-term dynamics of phosphorus in Canada have not been well understood. This study quantified the temporal dynamics of phosphorus cycling in Canadian provinces and found that most agricultural regions had phosphorus surpluses, except for Saskatchewan which had deficits. Quebec and the Atlantic provinces had the highest phosphorus surpluses, while Ontario, Manitoba, Alberta, and British Columbia had lower surpluses. Cropland played a more important role in phosphorus cycling than pasture, and the Prairie provinces had the highest phosphorus use efficiency.
GLOBAL BIOGEOCHEMICAL CYCLES
(2022)
Article
Environmental Sciences
Ziwei Li, Zhiming Qi, Ward Smith, Elizabeth Pattey, Budong Qian
Summary: Accurate simulation of thermal and hydrological budgets for farmlands overwinter is crucial in northern climates. This study tested the hypothesis that reduced snow cover due to warmer winters might intensify soil freezing. The results showed that global warming-induced snow cover reduction can lead to increased soil frozen depth, as long as the energy lost through reduced snow cover outweighs the energy gained through warmer air temperature.
WATER RESOURCES RESEARCH
(2022)
Article
Agronomy
Amar Ali Adam Hamad, Qi Wei, Junzeng Xu, Yousef Alhaj Hamoud, Min He, Hiba Shaghaleh, Qi Wei, Xintong Li, Zhiming Qi
Summary: Proper irrigation management can reduce greenhouse gas emissions and ammonia volatilization without reducing crop yield.
Article
Green & Sustainable Science & Technology
Qingguan Wu, Yong He, Zhiming Qi, Qianjing Jiang
Summary: This study conducted a global meta-analysis to explore the effects of drainage on rice yield and greenhouse gas emissions in paddy systems. The results showed that implementing drainage had a minimal impact on yield but significantly reduced CH4 emissions, especially in soils with higher pH and organic carbon content. Extending the duration and increasing the frequency of drainage increased N2O emissions but contributed to a better reduction in CH4 emissions. Implementing drainage in paddy systems with organic amendment achieved greater overall greenhouse gas emissions reduction.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Agronomy
Kaihua Liu, Xiyun Jiao, Jiang Li, Zhe Gu, Weihua Guo
Summary: This study develops a real-time adaptive control irrigation system to increase agricultural irrigation efficiency. The system adjusts the inflow rate based on the difference between actual and expected advance time, avoiding the need for real-time calculation of soil properties. Field experiments demonstrate the effectiveness and efficiency of the system, and sensitivity analysis shows its satisfactory performance even with varying parameters.
Article
Agronomy
Xu Yang, Ke Zhang, Hiba Shaghaleh, Zhiming Qi, Chao Gao, Tingting Chang, Jie Zhang, Muhammad Zia-ur-Rehman, Yousef Alhaj Hamoud
Summary: Continuous cropping reduces soil organic matter content, clay content, and pH, leading to soil degradation and decreased crop yield in the karst region of southwestern China. Soil water holding capacity is greater in the 40-60 cm layer compared to the 20-40 cm and 0-20 cm layers. Soil water characteristics deteriorate with the prolongation of cropping duration and are positively correlated with soil organic matter content, clay content, and pH. These findings can inform the development of more sustainable cropping systems in similar karst regions.
Article
Agriculture, Multidisciplinary
Jiaxin Wang, Zhiming Qi, Chong Wang
Summary: Phosphorus (P) management is crucial for environmental protection as inappropriate application can cause water pollution. However, conflicting experimental results make it difficult to draw general conclusions, and there is a lack of comprehensive analysis on the impact of P management on crop yields. This study conducted a meta-analysis to assess the effectiveness of different P management practices on reducing soil P loss and their impact on crop yields. The results indicate that the most effective practices for reducing soil P loss may not necessarily lead to the greatest improvement in crop yield. Efficient irrigation, crop straw return, buffer strip, and intercropping were found to be the most effective in reducing soil P loss, while soil amendment, intercropping, and conservative practices showed the largest increase in crop yields.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Agriculture, Multidisciplinary
Lizhu Hou, Xiaojuan Fan, Zhiming Qi, Li Wan, Kelin Hu
Summary: Nitrogen pollution is a serious threat to water resources worldwide, especially in desert oases where the water table is shallow. This study aimed to quantify N leaching for irrigated maize with different fertilizer and irrigation management practices, and recommend the best management practices. The results suggest that a combination of 20 mm irrigation depth and 338 kg N ha-1 fertilization is the most effective management practice.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Agriculture, Multidisciplinary
Ziwei Li, Zhiming Qi, Yuchen Liu, Yunjia Zheng, Yi Yang
Summary: The winter/spring season in cold climate regions is susceptible to nutrient loss and greenhouse gas emissions due to climate change. The RZ-SHAW model effectively describes snow and soil freezing dynamics but is computationally intensive. To reduce simulation runtimes, a parallel high-performance computing framework (RS-DPCF) with multi-threading and multi-processing capabilities was developed. The RS-DPCF program significantly reduced RZ-SHAW calibration time and allowed field-scale simulations of overwintering conditions for multiple croplands across Canada.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2023)
Article
Biodiversity Conservation
Jiaxin Wang, Zhiming Qi, Elena M. Bennett
Summary: The utilization of residual soil phosphorus in agricultural soils is important for reducing phosphorus applications and pollution. The potential for using residual soil phosphorus varies among Canadian provinces, with the highest potential in the Atlantic provinces, Quebec, Ontario, and British Columbia.
GLOBAL CHANGE BIOLOGY
(2023)