Article
Multidisciplinary Sciences
M. E. Marushchak, J. Kerttula, K. Diakova, A. Faguet, J. Gil, G. Grosse, C. Knoblauch, N. Lashchinskiy, P. J. Martikainen, A. Morgenstern, M. Nykamb, J. G. Ronkainen, H. M. P. Siljanen, L. van Delden, C. Voigt, N. Zimov, S. Zimov, C. Biasi
Summary: This study found that N2O emissions from Yedoma permafrost deposits increase after thawing and stabilization, potentially representing an unappreciated positive climate feedback in the Arctic.
NATURE COMMUNICATIONS
(2021)
Article
Engineering, Environmental
Oleg Anisimov, Sergei Zimov
Summary: The study indicates that methane emission in Siberian permafrost regions will increase by less than 20 Tg/year by the mid-21st century, leading to a global temperature rise of less than 0.02 degrees Celsius. This challenges the methane bomb concept and suggests that the feedback between thawing Siberian wetlands and the global climate has been overestimated.
Article
Environmental Sciences
Salvatore Calabrese, Alicia Garcia, Jared L. Wilmoth, Xinning Zhang, Amilcare Porporato
Summary: This study found that wetlands emit the most methane at a critical level of inundation, with a water level of around 50 cm being the most favorable for methane emissions globally. Keeping the water level away from this critical value could reduce methane emissions in human-made wetlands.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Florian Dietrich, Jia Chen, Ankit Shekhar, Sebastian Lober, Konstantin Kraemer, Graham Leggett, Carina van der Veen, Ilona Velzeboer, Hugo Denier van der Gon, Thomas Rockmann
Summary: Natural gas is considered a bridging technology in the energy transition due to its lower carbon emissions compared to coal. However, leaks can release methane into the atmosphere, significantly increasing the carbon footprint of natural gas. A study compared the climate impacts of gas-powered and electricity-powered appliances, using the Munich Oktoberfest as a case study and extending it to 25 major natural gas consuming countries. The study found that electricity has been the more climate-friendly energy source at Oktoberfest since 2005, but natural gas still produces lower carbon emissions than electricity for end-user appliances in 18 out of 25 countries studied. As the share of renewable energy increases, the carbon footprint of electricity will likely surpass that of natural gas in these countries in the future. These findings can inform the debate on addressing climate change effectively.
Article
Environmental Sciences
B. B. Cael, P. A. Goodwin
Summary: Methane emission reduction is crucial for global climate mitigation, and in the short term, it can have a greater impact on slowing down global warming compared to equivalent CO2 emission reduction. However, in the long term, sustained reduction in methane emissions after 2030 can result in persistently and substantially greater reduction in global warming.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Ecology
Johan H. Scheller, Mikhail Mastepanov, Hanne H. Christiansen, Torben R. Christensen
Summary: The research suggests that long-term landscape methane fluxes in the Arctic region are highly variable and emphasize the need for long-term spatially distributed measurements.
Article
Environmental Sciences
Hui Hua, Songyan Jiang, Zengwei Yuan, Xuewei Liu, You Zhang, Zican Cai
Summary: This study developed a framework to obtain multi-level greenhouse gas (GHG) emission factors (EFs) of municipal wastewater treatment plants (MWTPs) in China. The results showed significant differences in GHG EFs among different technologies and provinces, highlighting the importance of detailed technology classification and considering regional disparities. The study also tested the feasibility of the developed EFs and found similar estimation results, suggesting that selecting the appropriate EF based on activity data availability could simplify GHG estimations without sacrificing accuracy.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Murugesan Sobanaa, Ragothaman Prathiviraj, Joseph Selvin, Munisamy Prathaban
Summary: The unprecedented growth in population and anthropogenic activities have posed challenges to the future climate patterns, particularly the emissions of methane. However, various mitigation strategies can significantly reduce the global methane burden and have positive impacts on climate change, economy, human health, and agriculture.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Biodiversity Conservation
Florian Roth, Xiaole Sun, Marc C. Geibel, John Prytherch, Volker Bruchert, Stefano Bonaglia, Elias Broman, Francisco Nascimento, Alf Norkko, Christoph Humborg
Summary: Coastal methane emissions play a dominant role in the global ocean methane budget, but there is a lack of systematic, high-resolution, and long-term data, leading to uncertainty in coastal budgets. By studying continuous methane concentrations, delta C-13-CH4 values, and methane sea-air fluxes, researchers found that the distribution of methane in coastal habitats is patchy and highly variable over time. The concentrations of methane in different habitats can vary greatly, and there are specific seasonal and diurnal patterns. High-resolution measurements are needed to improve the reliability of methane estimates and understand the contribution of different habitats to regional and global methane budgets.
GLOBAL CHANGE BIOLOGY
(2022)
Editorial Material
Environmental Sciences
Gesche Blume-Werry
Summary: Plants respond differently to warming in terms of leaf and root phenology, with a meta-analysis showing that the two do not necessarily correlate within the same plant types.
NATURE CLIMATE CHANGE
(2022)
Article
Environmental Sciences
Christine M. Cornish, Jon N. Sweetman
Summary: Due to a growing population and the use of herbicide-resistant crops, there has been an increase in herbicide use globally. Glyphosate and 2,4-D are the most commonly used herbicides, often in combination. Herbicide contamination of wetlands leads to increased exposure of microorganisms to multiple chemical stressors. This article reviews the impacts of herbicides on aquatic microbial communities and highlights how they may contribute to increased methane production in wetlands.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Hugo Carreno-Luengo, Christopher S. S. Ruf
Summary: This research applies an existing freeze/thaw retrieval algorithm to multiple target areas over several years to demonstrate the ability to provide long term trending of freeze/thaw behavior. Metrics are developed and evaluated to characterize freeze/thaw trends related to global warming, showing the capability of Global Navigation Satellite Systems Reflectometry in studying climate change.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2022)
Article
Environmental Sciences
Nina Brooks, Kathryn Grace, Devon Kristiansen, Shraddhanand Shukla, Molly E. Brown
Summary: This study examines the relationship between variation in local seasonal agricultural quality and childbearing goals and family planning use. The results show that in some cases, women adjust their fertility aspirations or family planning use when the agricultural growing season conditions improve. This study highlights the importance of operationalizing agriculture in nuanced ways that align with women's lives to better understand how women are impacted by and respond to seasonal climate conditions.
GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS
(2023)
Article
Multidisciplinary Sciences
James L. France, Mark F. Lunt, Marcos Andrade, Isabel Moreno, Anita L. Ganesan, Thomas Lachlan-Cope, Rebecca E. Fisher, David Lowry, Robert J. Parker, Euan G. Nisbet, Anna E. Jones
Summary: This study measures the methane concentration in the Llanos de Moxos wetlands in northern Bolivia and finds that the daily methane flux in this area is very high, potentially contributing up to 8% of annual methane emissions in the Amazon Basin.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Remote Sensing
Ning Li, Jingfeng Xiao, Rui Bai, Jing Wang, Lu Wu, Wenlong Gao, Wei Li, Miao Chen, Qinfen Li
Summary: This study used long-term satellite data and climate factors to analyze the start of growing season (SOS) of natural rubber in tropical areas. The study found that preseason sunshine duration had the greatest impact on SOS, and SOS had a significant delay with the increase of latitude.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2023)
Article
Biology
Yalei Zhao, Lingjian Zhang, Qingqing Hu, Danhua Zhu, Zhongyang Xie
Summary: In this study, the role of C17orf53 in hepatocellular carcinoma (HCC) was analyzed using public datasets. The findings suggest that C17orf53 is highly expressed and predicts poor survival in HCC patients. It also correlates positively with the abundance of B cells, macrophages, and dendritic cells. Functional analysis revealed that C17orf53 is involved in cell cycle, DNA replication, and Fanconi anemia pathways. Knockdown of C17orf53 inhibited cell proliferation and decreased the expression of MCM8, cyclin D1, and PCNA. Overall, C17orf53 is a novel prognostic signature for HCC.
COMPUTERS IN BIOLOGY AND MEDICINE
(2023)
Article
Plant Sciences
Junqing Wu, Wenru Sun, Chao Sun, Chunmiao Xu, Shuang Li, Pengxue Li, Huimin Xu, Danyang Zhu, Meng Li, Liling Yang, Jinbo Wei, Aya Hanzawa, Sumaiya Jannat Tapati, Reiko Uenoyama, Masao Miyazaki, Abidur Rahman, Shuang Wu
Summary: Fruit malformation is a widespread issue in fruit production, causing significant economic losses. Although farmers have long observed the association between chilling temperature before blooming and malformed fruits, the molecular mechanism behind this phenomenon remains unclear. In this study, we investigated how tomato fruit development responded to cold stress and found that short-term cold stress led to increased callose accumulation in both shoot apical and floral meristems. This caused symplastic isolation and altered intercellular movement of WUS, resulting in expanded stem cell population and malformed fruits. Our findings suggest that the callose dynamics during short-term cold stress involve the interplay of abscisic acid and gibberellin, similar to bud dormancy mechanisms. This study provides new insights into the regulation of fruit malformation under cold stress.
Article
Materials Science, Multidisciplinary
Junlin Wu, Jiyang Ding, Xinyou Huang, Zhengfa Dai, Xiaoying Li, Danyang Zhu, Dong Huang, TengFei Xie, Jianrong Zhou, Xingfen Jiang, Zhijia Sun, Dariusz Hreniak, Jiang Li
Summary: Gd2O2S:Tb nanopowders were synthesized by hot water-bath method using Gd2O3 and H2SO4 as raw materials. The properties of precursors and powders were influenced by the initial bathing temperature. The size and thickness of flakes in the precursors and powders increased with the increase of initial temperature. Gd2O2S:Tb scintillation ceramics were fabricated using the obtained powders and showed different properties based on the initial temperature of synthesis.
Article
Physics, Multidisciplinary
Danni Zhu, Yancheng Cui, Jin Meng, Yuzhang Yuan, Haitao Wang, Jiangfeng Han
Summary: Magnetically insulated coaxial diodes are commonly used in high power microwave devices for generating intense annular electron beams. This study conducted electrical and optical measurements on a long-pulse magnetically insulated coaxial diode to observe the emission characteristics and plasma properties. The impact of cathode material, blade angle, diode voltage, and guiding magnetic field on the emission characteristics and plasma properties of six types of annular cathodes was investigated. The metal-dielectric cathode showed excellent emission characteristics and plasma properties, achieving impressive diode performance. Additionally, high voltage and small blade angle were found to enhance the emission capability and uniformity, while a strong magnetic field or large diode voltage reduced the axial and radial expansion velocities.
Article
Toxicology
Zhanxun Wu, Wenping Yan, Ke Wang, Genghua Xu, Danyan Zhu, Xuyun Li, Huafeng Wang, Min Yang, Xiangnan Zhang, Jiaying Wu
Summary: Bortezomib (BTZ) is an effective drug for multiple myeloma treatment, but it often leads to BTZ-induced peripheral neuropathy (BIPN). In this study, it was found that BTZ caused demyelination in sciatic nerves, leading to mechanical hyperalgesia and impaired nerve conduction. The mechanism was identified as the dysfunction of lysosomes and autophagy blockage in Schwann cells. However, the use of the lysosomal activator Torin1 reversed the autophagy blockage and improved the BIPN pathology.
ARCHIVES OF TOXICOLOGY
(2023)
Article
Plant Sciences
Xingnan Ouyang, Danyang Zhu, Yujie Huang, Xuejian Zhao, Rui Xu, Jiaying Wang, Wenjun Li, Xu Shen
Summary: This study found that MAOB was highly overexpressed in the spinal cord and DRG tissues of PIPN mice, rather than MAOA, and Khellin as a selective MAOB inhibitor could improve PIPN-like pathology. Moreover, Khellin promoted neurite outgrowth, alleviated apoptosis, and improved mitochondrial dysfunction of DRG neurons by targeting MAOB, while inhibiting spinal astrocytes activation and suppressing neuroinflammation through the MAOB/NF-kappa B/NLRP3/ASC/Caspase1/IL-1 beta pathway. These findings provide potential therapeutic approaches for treating the side effects of PTX-induced neuropathy using selective MAOB inhibitors.
Article
Engineering, Environmental
Rui Liu, Ying Xu, Liang Song, Shiyu Liu, Zixuan Liang, Danyang Zhu, Xiaohu Dai
Summary: This study investigated the influence of binding strength (BS) of extracellular organic substances (EOS) on organic matter (OM) recovery from sewage sludge. The results revealed the effects of multivalent metals, floc structures, and rheological properties on the release of EOS. The power-law distribution of BS was found to determine the state of organic molecules, stability of floc structures, and rheological properties. Hierarchical cluster analysis identified three levels of BS in EOS, indicating three stages of OM release or recovery from sludge. This study provides a theoretical basis for developing methods for OM release and recovery from sludge.
Article
Physics, Multidisciplinary
Dan Zhu, Khai-Ming Wong, Guo-Quan Wong
Summary: We further investigate the properties of axially symmetric monopole-antimonopole pair in the standard Weinberg-Salam model. Using a novel data sampling approach, we obtained and analyzed 300 numerical solutions corresponding to specific values of Higgs self-coupling and Weinberg angle. The calculated energy of these solutions falls within the range of 13.1690-21.0221 TeV, and a unique oscillation pattern is observed when the data is arranged based on the system's symmetry.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Microbiology
Zhenghao Zhao, Busen Wang, Shipo Wu, Zhe Zhang, Yi Chen, Jinlong Zhang, Yudong Wang, Danni Zhu, Yao Li, Jinghan Xu, Lihua Hou, Wei Chen
Summary: Designing a modified virus that can be controlled to replicate facilitates the study of viral pathogenic mechanisms and virus-host interactions. A universal switch element has been developed to precisely control virus replication using a small molecule. The insertion of inteins into the vesicular stomatitis virus (VSV) allows for regulated replication of the virus, which can be restored by intein splicing induced by 4-hydroxytamoxifen. This tool provides a simple and highly adaptable method for regulating virus replication.
FRONTIERS IN MICROBIOLOGY
(2023)
Review
Oncology
Danhua Zhu, Xiaoxi Ouyang, Yanhong Zhang, Xiaopeng Yu, Kunkai Su, Lanjuan Li
Summary: Long noncoding RNAs (lncRNAs) are noncoding RNAs with a length of more than 200 nucleotides. Dysregulation of lncRNAs is involved in various diseases, and is closely associated with patient clinical features. EGFR-AS1, a lncRNA, is aberrantly expressed in many types of cancers and is associated with multiple clinical characteristics. It regulates various cellular activities, making it a promising marker for cancer management.
FRONTIERS IN ONCOLOGY
(2023)
Editorial Material
Multidisciplinary Sciences
Huai Chen, Zicheng Yu, Ning Wu, Yanfen Wang, Xinwei Liu
Article
Environmental Sciences
Jia Zeng, Qin Cao, Yinping Bai, Huai Chen, Mingxue Liu, Yi He, Huichao He, Wenyuan Hu, Gang Yang
Summary: Semiconductor minerals in peatlands play a significant role in soil carbon stability. Decreased water table increases the photo electrochemical activity of semiconductor minerals, promoting soil carbon mineralization.
LAND DEGRADATION & DEVELOPMENT
(2023)
Article
Multidisciplinary Sciences
Qiuan Zhu, Huai Chen, Changhui Peng, Jinxun Liu, Shilong Piao, Jin-Sheng He, Shiping Wang, Xinquan Zhao, Jiang Zhang, Xiuqin Fang, Jiaxin Jin, Qi-En Yang, Liliang Ren, Yanfen Wang
Summary: Intense grazing may lead to grassland degradation on the Qinghai-Tibetan Plateau. Current grazing activity in the region is mostly sustainable, with the stocking rate below the threshold in about 80% of grassland areas. Positive effects of climate change can partly offset negative effects of grazing, but only in areas below the stocking rate threshold. Keeping the stocking rate within 50% to 70% of the threshold can balance human demands with grassland protection in the face of climate change.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Yanfen Wang, Kai Xue, Ronghai Hu, Boyang Ding, Hong Zeng, Ruijin Li, Bin Xu, Zhe Pang, Xiaoning Song, Congjia Li, Jianqing Du, Xiuchun Yang, Zelin Zhang, Yanbin Hao, Xiaoyong Cui, Ke Guo, Qingzhu Gao, Yangjian Zhang, Juntao Zhu, Jian Sun, Yaoming Li, Lili Jiang, Huakun Zhou, Caiyun Luo, Zhenhua Zhang, Qingbo Gao, Shilong Chen, Baoming Ji, Xingliang Xu, Huai Chen, Qi Li, Liang Zhao, Shixiao Xu, Yali Liu, Linyong Hu, Jianshuang Wu, Qien Yang, Shikui Dong, Jinsheng He, Xinquan Zhao, Shiping Wang, Shilong Piao, Guirui Yu, Bojie Fu
Summary: This study utilized multivariate data fusion and deep learning to analyze the structural changes in plant communities in alpine grasslands on the Tibetan Plateau. The results revealed an increase in the proportion of alpine meadows, a strengthening of dominant vegetation types, and variations in the driving factors depending on the vegetation type.
Article
Biology
Ian Cooney, Deirdre C. Mack, Aaron J. Ferrell, Michael G. Stewart, Shuxin Wang, Helen M. Donelick, Daniela Tamayo-Jaramillo, Dakota L. Greer, Danyang Zhu, Wenyan Li, Peter S. Shen
Summary: Single-particle electron cryo-microscopy (cryo-EM) is an effective method for determining high-resolution structures of macromolecular complexes. This study presents a protocol using budding yeast to isolate tagged proteins and their associated complexes within three hours, prioritizing speed to recover intact, low-abundant complexes for cryo-EM specimen preparation. The protocol is applicable to soluble yeast proteins that tolerate C-terminal epitope tags.
Article
Agronomy
Wenyi Xu, Bo Elberling, Per Lennart Ambus
Summary: The frequency and extent of wildfires in the Arctic have been increasing due to climate change. In this study, researchers conducted experiments in West Greenland to investigate the long-term impacts of climate warming on post-fire carbon dioxide exchange in arctic tundra ecosystems. They found that fire increased soil organic phosphorus concentrations and burned areas remained a net CO2 source five years after the fire. However, with four to five years of summer warming, the burned areas turned into a net CO2 sink.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Yuanhang Yang, Jiabo Yin, Shengyu Kang, Louise J. Slater, Xihui Gu, Aliaksandr Volchak
Summary: This study investigates the impacts of water and heat stress on carbon uptake in China and explores the driving mechanisms of droughts using a machine learning model. The results show that droughts are mostly driven by atmospheric dryness, with precipitation, relative humidity, and temperature playing dominant roles. Water and heat stress have negative impacts on carbon assimilation, and drought occurrence is projected to increase significantly in the future. Improving ecosystem resilience to climate warming is crucial in mitigating the negative effects of droughts on carbon uptake.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Ningbo Cui, Shunsheng Zheng, Shouzheng Jiang, Mingjun Wang, Lu Zhao, Ziling He, Yu Feng, Yaosheng Wang, Daozhi Gong, Chunwei Liu, Rangjian Qiu
Summary: This study proposes a method to partition evapotranspiration (ET) into its components in agroforestry systems. The method is based on water-carbon coupling theory and flux conservation hypothesis. The results show that the partitioned components agree well with measurements from other sensors. The study also finds that atmospheric evaporation demand and vegetation factors greatly influence the components of ET, and increased tree leaf area limits understory grass transpiration.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Xinhao Li, Tianshan Zha, Andrew Black, Xin Jia, Rachhpal S. Jassal, Peng Liu, Yun Tian, Chuan Jin, Ruizhi Yang, Feng Zhang, Haiqun Yu, Jing Xie
Summary: With the rapid increase of urbanization, evapotranspiration (ET) in urban forests has become increasingly important in urban hydrology and climate. However, there is still a large uncertainty regarding the factors that regulate ET in urban areas. This study investigates the temporal variations of ET in an urban forest park in Beijing using the eddy-covariance technique. The results show that daily ET is close to zero during winter but reaches 3-6 mm day-1 in summer. Daily ET increases with vapor pressure deficit (VPD) and soil water content (SWC). Monthly ET increases linearly with normalized difference vegetation index and shows a strong correlation with surface conductance (gs), while exhibiting saturated responses to increasing monthly precipitation (PPT). Annual ET ranges from 326 to 566 mm, and soil water replenishment through PPT from the previous year is responsible for the generally higher monthly ET in spring relative to PPT. Biotic factors and PPT seasonality play essential roles in regulating ET at different scales.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Zhaogang Liu, Zhi Chen, Meng Yang, Tianxiang Hao, Guirui Yu, Xianjin Zhu, Weikang Zhang, Lexin Ma, Xiaojun Dou, Yong Lin, Wenxing Luo, Lang Han, Mingyu Sun, Shiping Chen, Gang Dong, Yanhong Gao, Yanbin Hao, Shicheng Jiang, Yingnian Li, Yuzhe Li, Shaomin Liu, Peili Shi, Junlei Tan, Yakun Tang, Xiaoping Xin, Fawei Zhang, Yangjian Zhang, Liang Zhao, Li Zhou, Zhilin Zhu
Summary: This study investigates the responses of temperate grassland (TG) and alpine grassland (AG) to climate change by studying carbon (C) fluxes across different regions in China. The results reveal that water factors consistently increase C fluxes, while temperature factors have opposite effects on TG and AG. The study enhances our understanding of C sinks and grassland sensitivity to climate change.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Peng Li, Huijie Li, Bingcheng Si, Tao Zhou, Chunhua Zhang, Min Li
Summary: This study mapped the distribution of forest age on the Chinese Loess Plateau using the LandTrendr algorithm. The results show that the LT algorithm is a convenient, efficient, and reliable method for identifying forest age. The findings have important implications for assessing and quantifying biomass and carbon sequestration in afforestation efforts on the Chinese Loess Plateau.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Review
Agronomy
Yean-Uk Kim, Heidi Webber, Samuel G. K. Adiku, Rogerio de S. Noia Junior, Jean-Charles Deswarte, Senthold Asseng, Frank Ewert
Summary: As climate change is expected to increase the intensity and frequency of extreme weather events, it is crucial to assess their impact on cropping systems and explore adaptation options. Process-based crop models (PBCMs) have improved in simulating the impacts of major extreme weather events, but still struggle to reproduce low crop yields under wet conditions. This article provides an overview of the yield-loss mechanisms of excessive rainfall in cereals and the associated modelling approaches, aiming to guide improvements in PBCMs.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Xiaodong Liu, Yingjie Feng, Xinyu Zhao, Zijie Cui, Peiling Liu, Xiuzhi Chen, Qianmei Zhang, Juxiu Liu
Summary: Understanding the impact of climate on litterfall production is crucial for simulating nutrient cycling in forest ecosystems. This study analyzed a 14-year litterfall dataset from two subtropical forests in South China and found that litterfall was mainly influenced by wind speed during the wet season and by temperature during the dry season. These findings have potential significance in improving our understanding of carbon and nutrient cycling in subtropical forest ecosystems under climate change conditions.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Ruonan Chen, Liangyun Liu, Zhunqiao Liu, Xinjie Liu, Jongmin Kim, Hyun Seok Kim, Hojin Lee, Genghong Wu, Chenhui Guo, Lianhong Gu
Summary: Solar-induced chlorophyll fluorescence (SIF) has the potential to estimate gross primary production (GPP), but the quantitative relationship between them is not constant. In this study, a mechanistic model for SIF-based GPP estimation in evergreen needle forests (ENF) was developed, considering the seasonal variation in a key parameter of the model. The GPP estimates from this model were more accurate compared to other benchmark models, especially in extreme conditions.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Jingyi Zhu, Yanzheng Yang, Nan Meng, Ruonan Li, Jinfeng Ma, Hua Zheng
Summary: This study developed a random forest model using climate station and satellite data to generate high-precision precipitation datasets for the Qinghai-Tibet Plateau. By incorporating multisource satellite data, the model achieved a significant enhancement in precipitation accuracy and showed promising results in regions with limited meteorological stations and substantial spatial heterogeneity in precipitation patterns.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Yulin Yan, Youngryel Ryu, Bolun Li, Benjamin Dechant, Sheir Afgen Zaheer, Minseok Kang
Summary: Sustainable rice farming practices are urgently needed to meet increasing food demand, cope with water scarcity, and mitigate climate change. Traditional farming methods that prioritize a single objective have proven to be insufficient, while simultaneously optimizing multiple competing objectives remains less explored. This study optimized farm management to increase rice yield, reduce irrigation water consumption, and tackle the dilemma of reducing GHG emissions. The results suggest that the optimized management can maintain or even increase crop yield, while reducing water demand and GHG emissions by more than 50%.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Sasha D. Hafner, Jesper N. Kamp, Johanna Pedersen
Summary: This study compared micrometeorological and wind tunnel measurements using a semi-empirical model to understand wind tunnel measurement error. The results showed differences in emission estimates between the two methods, but the ALFAM2 model was able to reproduce emission dynamics for both methods when considering differences in mass transfer. The study provides a template for integrating and comparing measurements from different methods, suggesting the use of wind tunnel measurements for model evaluation and parameter estimation.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Wenfang Xu, Wenping Yuan, Donghai Wu, Yao Zhang, Ruoque Shen, Xiaosheng Xia, Philippe Ciais, Juxiu Liu
Summary: In the summer of 2022, China experienced record-breaking heatwaves and droughts, which had a significant impact on plant growth. The study also found that heatwaves were more critical than droughts in limiting vegetation growth.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Jiaqi Guo, Xiaohong Liu, Wensen Ge, Liangju Zhao, Wenjie Fan, Xinyu Zhang, Qiangqiang Lu, Xiaoyu Xing, Zihan Zhou
Summary: Vegetation photosynthetic phenology is an important indicator for understanding the impacts of climate change on terrestrial carbon cycle. This study evaluated and compared the abilities of different spectral indices to model photosynthetic phenology, and found that NIRv and PRI are effective proxies for monitoring photosynthetic phenology.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Arango Ruda Elizabeth, M. Altaf Arain
Summary: Temperate deciduous forests have significant impacts on regional and global water cycles. This study examined the effects of climate change and extreme weather events on the water use and evapotranspiration of a temperate deciduous forest in eastern North America. The results showed that photosynthetically active radiation and air temperature were the primary drivers of evapotranspiration, while vapor pressure deficit regulated water use efficiency. The study also found a changing trend in water use efficiency over the years, influenced by extreme weather conditions.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)