Article
Agronomy
Peng Bai, Changxin Cai
Summary: This study evaluates the feasibility of calibrating a remote sensing evapotranspiration (ET) model using the Budyko framework. The calibrated model significantly improves ET estimation accuracy at different scales, highlighting the potential of leveraging the Budyko framework for large-scale ET estimates.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Environmental Sciences
Dayang Wang, Dagang Wang, Chongxun Mo
Summary: The study demonstrates that the bias correction approach can improve global land evapotranspiration simulations, with effective adjustment to overestimations and varying effectiveness for underestimations based on the ET regime, showing more effective correction in areas with abundant precipitation compared to areas with scarce precipitation. The use of satellite-based ET products benefits hydrological simulations in land surface models globally.
Article
Forestry
Ying Ding, Huihui Feng, Bin Zou
Summary: This study summarizes the impact of land use and cover change (LUCC) on hydrological processes. Remote sensing technology provides continuous spatial data on land cover and hydrological variables. The effects of LUCC on hydrological processes can be evaluated using correlation analysis, multiple regression methods, experimental watershed approaches, and trajectory-based approaches. However, quantitatively separating the actual components of the influence of LUCC is challenging due to the complexity of geographical systems.
Article
Environmental Sciences
Emilie Delogu, Albert Olioso, Aubin Allies, Jerome Demarty, Gilles Boulet
Summary: Continuous daily estimates of evapotranspiration (ET) are crucial for water management in agriculture. This study evaluates the performance of different reference quantities in reconstructing seasonal ET from sparse estimates, highlighting the importance of revisit frequency for accurate results. Additionally, simple methods like using global radiation can provide robust estimates at a seasonal scale.
Article
Engineering, Civil
Peng Bai
Summary: This study compared three widely used remote sensing ET models and found that the PML model performs the best on both site and basin scales, possibly due to its land-cover-based parameter configuration and consideration of soil evaporation and transpiration responses to soil water deficit.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Suli Pan, Yue-Ping Xu, Haiting Gu, Bai Yu, Weidong Xuan
Summary: The study compared the effectiveness of different calibration schemes on hydrological model parameters and found that multi-variable calibration (including runoff and remote sensing-based evapotranspiration) can improve the performance of the model in runoff and evapotranspiration simulation, especially in extreme flow simulations.
Article
Environmental Sciences
Sumantra Chatterjee, Ramanitharan Kandiah, Doyle Watts, Subramania Sritharan, John Osterberg
Summary: This study used machine learning approaches and remote sensing data to estimate evapotranspiration in arid regions. The results show that using multiple parameters can improve the accuracy, and random forest and support vector machine with radial kernel consistently produced the best predictive accuracies.
Article
Engineering, Civil
Peng Bai, Changxin Cai
Summary: Remotely sensed evapotranspiration (ET) models are commonly used to estimate ET over large areas, but one challenge is the lack of reliable soil moisture (SM) constraints. In this study, five proxy algorithms for SM constraints were evaluated in China, and it was found that the fdrying algorithm performed the best at flux sites.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Zheng Li, Shikun Sun, Jinfeng Zhao, Chong Li, Zihan Gao, Yali Yin, Yubao Wang, Pute Wu
Summary: Agriculture is the largest consumer of water resources globally. Accurate measurement of crop water footprint (CWF) is crucial for evaluating water use characteristics and guiding water management in agricultural production. This study developed an effective method to estimate regional maize CWF in China using global evapotranspiration products and assessed its accuracy against flux tower measurements. The results showed that remote sensing-based methods were more realistic than ETc-based methods in measuring CWF in arid and semi-arid regions.
WATER RESOURCES RESEARCH
(2023)
Article
Agronomy
Arun Bawa, Gabriel B. Senay, Sandeep Kumar
Summary: In this study, Landsat imagery and remote sensing-based ETa modeling approaches were used to analyze crop water use in the Missouri River Basin. The study found regional variations in crop water use and identified factors influencing the changes in crop water use. The results of this study are of significant importance for improving land and water management practices.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Engineering, Civil
Wenbin Zhu, Yizhuo Wang, Shaofeng Jia
Summary: This study proposes a daily scale framework for continuous evapotranspiration (ET) mapping and partitioning based on a universal solution of the traditional Ts-VI models. By transforming the Ts-VI feature space, the framework allows for ET estimation and partitioning that are only related to the boundary conditions at the pixel scale. The framework is demonstrated in Qaidam Basin, China, using MODIS products, and the results show the advantages of the universal Ts-VI model in capturing spatial details and temporal variations accurately.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Saihong Lu, Junjie Xuan, Tong Zhang, Xueer Bai, Fei Tian, Samuel Ortega-Farias
Summary: Due to the proliferation of precision agriculture, the influence of shadow pixels obtained from remote sensing technology on the estimation of evapotranspiration (ET) and its components cannot be ignored. This study conducted field observations and used remote sensing sensors to detect shadow pixels and quantify their implications on ET estimation. The results showed that the shadow detection process significantly improved the reliable assessment of ET and its components, and the use of multispectral correction further improved the accuracy of ET estimation. The study also revealed the spatiotemporal patterns of ET in a vineyard system.
Article
Environmental Sciences
Yongshan Jiang, Zhaofei Liu
Summary: The study evaluated eight global remote sensing-based evapotranspiration (ET) datasets in the Hengduan Mountain region, and compared them with ET data generated using the water balance method. Results showed that most remote sensing datasets accurately simulated monthly ET, with the Operational Simplified Surface Energy Balance dataset performing the best. Additionally, the complementary relationship model also showed good performance in simulating monthly ET.
Article
Agronomy
Hamed Sabzchi-Dehkharghani, Amir Hossein Nazemi, Ali Ashraf Sadraddini, Abolfazl Majnooni-Heris, Asim Biswas
Summary: An algorithm was developed to classify wheat fields into high-productive and low-productive classes using satellite images based on ETa values, with a statistical assessment of the results. The study successfully mapped and classified wheat fields, evaluating productivity and accuracy of yield estimates.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Environmental Sciences
Siyi Wen, Zihan Liu, Yu Han, Yuyan Chen, Liangsi Xu, Qiongsa Li
Summary: This research analyzed the spatiotemporal variation characteristics of evapotranspiration (ET), relative moisture index (MI), and influencing factors of reference evapotranspiration (ET0) in Heilongjiang, China. The results showed that the spatial distribution of ET and PET exhibited a pattern of higher values in the southwest and lower values in the northwest, and higher values in the south and lower values in the north. ET0 increased while the annual MI decreased over the last 40 years. The importance of meteorological factors affecting ET0 ranked as average relative humidity > average wind speed > sunshine duration.
Article
Meteorology & Atmospheric Sciences
Guobin Fu, Francis H. S. Chiew, David. A. A. Post
Summary: This study assesses the trend and variability in rainfall characteristics that affect annual streamflow in southeast Australia. The results show a declining rainfall trend, with the most significant trend observed in the number of rainfall days and multi-day rainfall totals. Changes in rainfall characteristics also play a role in influencing annual streamflow.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2023)
Review
Medicine, Research & Experimental
Shilang Liao, Mengru Cai, Rongyue Zhu, Tingting Fu, Yuji Du, Jiahui Kong, Yongqiang Zhang, Changhai Qu, Xiaoxv Dong, Jian Ni, Xingbin Yin
Summary: Chlorin e6 (Ce6), a highly effective photosensitizer and sonosensitizer, has been extensively researched and developed for antitumor therapy. It shows promising future applications in photodynamic therapy, dynamic acoustic therapy, and combined acoustic and light therapy for tumors. Ce6 is also being studied for other applications such as fluorescence navigation, antibacterials, and plant growth regulation. Despite the challenges in clinical applications, Ce6 offers significant advantages in photodynamic therapy/sonodynamic therapy against cancer and has potential clinical utility.
MOLECULAR PHARMACEUTICS
(2023)
Article
Meteorology & Atmospheric Sciences
Xingmin Shao, Yongqiang Zhang, Ning Ma, Xuanze Zhang, Jing Tian, Changming Liu
Summary: This study simulates the changes in flood and drought characteristics in the Yarlung Zangbo River basin (YRB) under different climate scenarios. The results show that the YRB could become wetter in the future, with increased frequency, volume, and peak of floods, and decreased frequency, severity, and duration of droughts.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Agronomy
Longhao Wang, Yongqiang Zhang, Ning Ma, Peilin Song, Jing Tian, Xuanze Zhang, Zhenwu Xu
Summary: Heatwaves have been significantly increasing, causing serious impacts on the biosphere. The health of the ecosystem is adversely affected by alterations in the vegetation canopy due to high temperatures and water deficit. However, the behavior of canopy resilience in different ecosystems towards heatwaves remains less understood.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Agronomy
Yan Zhou, Jinwei Dong, Yaoping Cui, Meng Zhao, Xinxin Wang, Qiuhong Tang, Yongqiang Zhang, Sha Zhou, Graciela Metternicht, Zhenhua Zou, Geli Zhang, Xiangming Xiao
Summary: The North China Region (NCR), known for its grain production and high population density, faces severe water shortages that have been threatening sustainable development in the area. Previous studies have attributed depleted water resources in the NCR to increased agricultural water use, without considering the impact of large-scale implementation of ecological restoration programs. This study examines the interannual variations and trends of terrestrial water storage (TWS) in the NCR from 2002 to 2016 and highlights the role of ecological restoration in causing water depletion.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Agronomy
Xingwang Wang, Huimin Lei, Jiadi Li, Zailin Huo, Yongqiang Zhang, Yanping Qu
Summary: In this study, a combination of remote sensing and water-carbon coupled model was used to estimate evapotranspiration (ET) and yield of wheat and maize. The model produced accurate estimates by considering various remote sensing indices and individually calibrated parameters. The simulation results of crop growth and yield were in good agreement with measurements, with coefficient of determination mostly larger than 0.66. The developed model also quantified the spatiotemporal crop water productivity (WP), revealing increasing WP of winter wheat and larger WP of maize compared to wheat in the North China Plain during 2001-2018.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Agronomy
Yongqiang Zhang, Maosheng Ge, Qianwen Zhang, Shaopeng Xue, Fuqiang Wei, Hao Sun
Summary: Irrigation modernization has impacts on irrigation energy consumption and greenhouse gas emissions, leading to improved irrigation water efficiency. A scenario-decomposition-based calculation method was proposed to examine the impact of irrigation system modernization on China's irrigation energy consumption and GHG emissions at national and provincial scales. The data revealed that from 2005 to 2015, the irrigation water volume and energy consumption increased by 7.9% and 22.3%, respectively, reaching a national equivalent of 42.5 Mt CO2e in 2015. Water-energy consumption varied greatly across the country, with significantly higher irrigation energy consumption per unit volume of water and per unit area in northern provinces compared to southern provinces. Promoting water-saving irrigation technology can effectively improve China's irrigation water-energy-GHG emissions structure, enhancing irrigation efficiency without a significant increase in energy consumption. The specific conditions of each region should be considered when promoting water-saving irrigation technologies, with particular attention given to the relationship between irrigation water-energy-GHG emissions in northern provinces.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Polymer Science
Zhenyu Han, Yongqiang Zhang, Liang Wang, Guangqian Zhu, Jia Kuang, Guangyu Zhu, Guangqiang Xu, Qinggang Wang
Summary: The enhanced polymerization of isoprene catalyzed by high-activity late transition metals is still a major challenge in synthetic rubber chemistry. In this study, a series of [N, N, X] tridentate iminopyridine iron chloride pre-catalysts (Fe 1-4) with side arms were synthesized and characterized by element analysis and HRMS. All iron compounds served as highly efficient pre-catalysts for 3,4-enhanced isoprene polymerization (up to 62%) when 500 equivalent MAOs were used as co-catalysts, resulting in high-performance polyisoprenes. Optimization using single factor and response surface methods revealed that the highest activity was obtained with complex Fe 2 under the following conditions: Al/Fe = 683; IP/Fe = 7095; t = 0.52 min.
Article
Green & Sustainable Science & Technology
Yongqiang Zhang, Hao Sun, Maosheng Ge, Hang Zhao, Yifan Hu, Changyue Cui, Zhibin Wu
Summary: China's kiwi industry is facing increasing production costs and shrinking planting areas. The lack of professional production standards leads to input redundancy and waste, exacerbating the unsustainable nature of agricultural production. This study analyzed the energy input and output of kiwifruit production under surface irrigation and water-saving irrigation, finding that water-saving irrigation technology improved energy efficiency and productivity. Promoting the application of water-saving irrigation and increasing fertigation during the kiwi production process are necessary measures for the industry's sustainable development.
Article
Cell Biology
Bang Li, Hui Zhao, Zhuchi Tu, Weili Yang, Rui Han, Lu Wang, Xiaopeng Luo, Mingtian Pan, Xiusheng Chen, Jiawei Zhang, Huijuan Xu, Xiangyu Guo, Sen Yan, Peng Yin, Zhiguang Zhao, Jianrong Liu, Yafeng Luo, Yuefeng Li, Zhengyi Yang, Baogui Zhang, Zhiqiang Tan, Hao Xu, Tianzi Jiang, Yong-hui Jiang, Shihua Li, Yong Q. Zhang, Xiao-Jiang Li
Summary: Autism spectrum disorder (ASD) is a complex neurodevelopmental condition that disrupts social interaction and behavior. Mutations in the CHD8 gene lead to autism symptoms and increased head size through a mechanism called haploinsufficiency. The use of primates as a model system revealed that CHD8 mutations caused increased gliogenesis, resulting in macrocephaly. The findings suggest that abnormal gliogenesis may play a role in the development of ASD.
Article
Environmental Sciences
Xiaojie Li, Yongqiang Zhang, Ning Ma, Xuanze Zhang, Jing Tian, Lu Zhang, Tim R. Mcvicar, Enli Wang, Junzeng Xu
Summary: In the past two decades, crop production and agricultural water consumption have significantly increased in northern China, while the increase in southern China is relatively small. The increasing irrigation demand in northern China is reducing the availability of stored water and cannot be met by agricultural water supply in the future decades. The conflict between limited agricultural water supply and increasing irrigation demand cannot be resolved by the South-to-North Water Diversion Project, and better management in water resources and crop production is needed.
Article
Meteorology & Atmospheric Sciences
Ruixiang Hua, Yongyong Zhang, Shiyan Zhang, Tongtiegang Zhao, Qiuhong Tang, Yongqiang Zhang, Aiping Feng
Summary: By coupling hydrological and hydrodynamic models with climate models, this study projected future changes in extreme floods and their impact on downstream lakes. The results indicate significant increases in extreme riverine floods and lake water levels, leading to expanded inundation areas.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Review
Environmental Sciences
Yuting Yang, Michael L. Roderick, Hui Guo, Diego G. Miralles, Lu Zhang, Simone Fatichi, Xiangzhong Luo, Yongqiang Zhang, Tim R. McVicar, Zhuoyi Tu, Trevor F. Keenan, Joshua B. Fisher, Rong Gan, Xuanze Zhang, Shilong Piao, Baoqing Zhang, Dawen Yang
Summary: Evapotranspiration (ET), which is regulated by vegetation, plays a central role in water, energy, and carbon cycles. There has been a global increase in ET since the 1980s, primarily driven by vegetation greening. The impacts of specific drivers on ET, such as CO2 fertilization and land use change, are uncertain at a global scale but have regional effects. Improving model validation, understanding key processes, and data-model fusion techniques are essential for better understanding ET characteristics.
NATURE REVIEWS EARTH & ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Qi Huang, Yongqiang Zhang, Haoshan Wei
Summary: Direct streamflow outputs from CMIP6 models are important for studying future water supply under climate change. However, the accuracy of these data is still debated, and the relevant variables cannot fully explain the observed streamflow change.
Article
Meteorology & Atmospheric Sciences
Congcong Li, Qiang Yu, Yongqiang Zhang, Ning Ma, Jing Tian, Xuanze Zhang
Summary: This study estimates the changes in terrestrial water storage (TWS) in China from 2003 to 2017 and finds that annual precipitation in northern China plays a more important role in controlling TWS variability than that in southern China. Actual evapotranspiration is the dominant driver of the declining TWS trend in northern basins.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)