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Nitrogen cycling and environmental impacts in upland agricultural soils in North China： A review

Journal of Integrative Agriculture 2017年第12期16卷 2848-2862页

作者： JU Xiao-tang ZHANG Chong college of resources and en vironmen tal sciences China Agricultural University Beijing 100193 P.R. China

The upland agricultural soils in North China are distributed north of a line between the Kunlun Mountains, the Qinling Mountains and the Huaihe River. They occur in arid, semi-arid and semi-humid regions and crop production often depends on rain-fed or irrigation to supplement rainfall. This paper summarizes the characteristics of gross nitrogen（N） transformation, the fate of N fertilizer and soil N as well as the N loss pathway, and makes suggestions for proper N management in the region. The soils of the region are characterized by strong N mineralization and nitrification, and weak immobilization and denitrification ability, which lead to the production and accumulation of nitrate in the soil profile. Large amounts of accumulated nitrate have been observed in the vadose-zone in soils due to excess N fertilization in the past three decades, and this nitrate is subject to occasional leaching which leads to groundwater nitrate contamination. Under farmer＇s conventional high N fertilization practice in the winter wheat-summer maize rotation system（N application rate was approximately 600 kg ha–1 yr–1）, crop N uptake, soil residual N, NH_3 volatilization, NO_3~– leaching, and denitrification loss accounted for around 27, 30, 23, 18 and 2% of the applied fertilizer N, respectively. NH_3 volatilization and NO_3~– leaching were the most important N loss pathways while soil residual N was an important fate of N fertilizer for replenishing soil N depletion from crop production. The upland agricultural soils in North China are a large source of N_2O and total emissions in this region make up a large proportion（approximately 54%） of Chinese cropland N_2O emissions. The “non-coupled strong ammonia oxidation” process is an important mechanism of N_2O production. Slowing down ammonia oxidation after ammonium-N fertilizer or urea application and avoiding transient high soil NH4＋ concentrations are key measures for reducing N_2O emissions in this region. Further N management shou

关键词： N transformation NH3 volatilization ammonia oxidation NO3- leaching N2O emission upland agricultural soils

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Characterization of a pangolin SARS-CoV-2-related virus isolate that uses the human ACE2 receptor

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Science China(Life sciences) 2024年第7期67卷 1502-1513页

作者： Luo-Yuan Xia Xue-Feng Wang Xiao-Ming Cui Yi-Ming Zhang Zhen-Fei Wang en-Tao Li Chang-Fa Fan Ke Song Yuan-Guo Li Run-Ze Ye Fang-Xu Li Dai-Yun Zhu Jie Zhang Zhuang-Zhuang Shi Ming-Zhu Zhang Liang-Jing Li Shi-Jing Shen Song Jin Ya-Wei Zhang Wei-Guang Fu Lin Zhao Wen-Hao Wang Tie-Cheng Wang You-Chun Wang Jia-Fu Jiang Yan-Ling Hu Na Jia Yu-Wei Gao Wu-Chun Cao Institute of EcoHealth School of Public HealthCheeloo College of MedicineShandong UniversityJinan 250012China Changchun Veterinary Research Institute Changchun 130122China State Key Laboratory of Pathogen and Biosecurity Beijing Institute of Microbiology and EpidemiologyBeijing 100071China Division of Animal Model Research Institute for Laboratory Animal ResourcesNational Institutes for Food and Drug ControlBeijing 102629China National Institutes for Food and Drug Control Beijing 102629China Life sciences Institute Guangxi Medical UniversityNanning 530020China college of Life sciences Shandong Normal UniversityJinan 250014China Research Unit of Discovery and Tracing of Natural Focus Diseases Chinese Academy of Medical SciencesBeijing 100071China

Various SARS-CoV-2-related coronaviruses have been increasingly identified in pangolins,showing a potential threat to *** we report the infectivity and pathogenicity of the SARS-CoV-2-related virus,PCoV-GX/P2V,which was isolated from a Malayan pangolin(Manis javanica).PCoV-GX/P2V could grow in human hepatoma,colorectal adenocarcinoma cells,and human primary nasal epithelial *** replicated more efficiently in cells expressing human angiotensin-converting enzyme 2(hACE2)as SARS-CoV-2 *** intranasal inoculation to the hACE2-transgenic mice,PCoV-GX/P2V not only replicated in nasal turbinate and lungs,but also caused interstitial pneumonia,characterized by infiltration of mixed inflammatory cells and multifocal alveolar *** population immunity established by SARS-CoV-2 infection and vaccination may not protect people from PCoV-GX/P2V *** findings further verify the hACE2 utility of PCoV-GX/P2V by in vivo experiments using authentic viruses and highlight the importance for intensive surveillance to prevent possible cross-species transmission.

关键词： pangolin SARS-CoV-2-related virus infectivity pathogenicity human cell lines human ACE2 receptor hACE2-transgenic mice

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21世纪全球新建水库编目:丰度、热点区及总蓄水量

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Science Bulletin 2024年第14期69卷 2179-2182页

作者：范晨雨宋春桥 Jida Wang Yongwei Sheng 蔺亚玲苑春雨 Md Safat Sikder Jean-Francois Crétaux 刘凯陈探曾繁轩柯灵红 Key Laboratory of Watershed Geographic sciences Nanjing Institute of Geography and LimnologyChinese Academy of SciencesNanjing 210008China University of Chinese Academy of sciences Beijing 100049China University of Chinese Academy of sciences Nanjing(UCASNJ)Nanjing 211135China Department of Geography and Geographic Information Science University of Illinois Urbana-ChampaignUrbana IL 61801USA Department of Geography and Geospatial sciences Kansas State UniversityManhattan KS 66506USA Department of Geography University of CaliforniaLos Angeles CA 90095USA Laboratoire d’Études en Géophysique et Océanographie Spatiales(LEGOS) CNES-IRD-CNRS-UT3Universitéde ToulouseToulouse 31401France college of Hydrology and Water resources Hohai UniversityNanjing 210098China State Key Laboratory of Hydrology-Water resources and Hydraulic engineering Hohai UniversityNanjing 210098China

Dams and reservoirs play an essential role in regulating and managing water *** the middle of the 20th century,the growing demand for water and hydropower has led to an unprecedented boom in reservoir construction worldwide[1,2].Meanwhile,reservoir construction has also resulted in a variety of ecological and socioeconomic impacts[3–5].Reservoirs transform natural flow regimes into conditions favored by human *** associated flow regulations,especially in reservoirs constructed in recent decades(e.g.,after 2000)with greater seasonal variability[6,7],represent a strong human-induced alteration of the hydrologic *** reservoir construction continues to boom in many parts of the world,an up-to-date and openaccess inventory of reservoirs worldwide remains critically desired.

关键词： reservoir reservoirs alteration

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The Preliminary Study on Screening and Application of Phthalic Acid-Degrading Bacteria

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Advances in Microbiology 2024年第4期14卷 226-239页

作者： Honghao Zhang Lin Yang Rubing Xu Yuxiao Sun Yong Yang Yanyan Li college of Life sciences Hubei University Wuhan China Hubei Academy of Tobacco Science Wuhan China Xuan’ en Branch Company of Enshi Tobacco Corporation Enshi China

Phthalic acid is a main pollutant, which is also an important reason for the continuous cropping effect of tobacco. In order to degrade the phthalic acid accumulated in the environment and relieve the obstacle effect of tobacco continuous cropping caused by the accumulation of phthalic acid in the soil. In this study, phthalate degrading bacteria B3 is screened from continuous cropping tobacco soil. The results of biochemical identification and 16sDNA comparison show that the homology between degrading bacterium B3 and enterobacter sp. is 99%. At the same time, the growth of enterobacter hormaechei subsp. B3 and the degradation of phthalic acid under different environmental conditions are studied. The results show that the environment with a temperature of 30˚C, PH of 7, and inoculation amount of not less than 1.2%, which is the optimal growth conditions for enterobacter sp. B3. In an environment with a concentration of phthalic acid not exceeding 500 mg/L, enterobacter sp. B3 has a better effect on phthalic acid degradation, and the degradation rate can reach 77% in 7 d. The results of indoor potting experiments on tobacco show that the degradation rate of phthalic acid by enterobacter B3 in the soil is about 45%, which can reduce the inhibitory effect of phthalic acid on the growth of tobacco seedlings. This study enriches the microbial resources for degrading phthalic acid and provides a theoretical basis for alleviating tobacco continuous cropping obstacles.

关键词： Phthalic Acid Degrading Bacteria Rhizosphere Soil

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The interactive effect of temperature and fertilizer types determines the dominant microbes in nitrous oxide emissions and the dicyandiamide efﬁcacy in a vegetable soil

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Soil Ecology Letters 2024年第3期6卷 121-133页

作者： Xiaoya Xu Haiyang Liu Yaowei Liu Didier Lesueur Laetitia Herrmann Hongjie Di Caixian Tang Jianming Xu Yong Li Zhejiang Provincial Key Laboratory of Agricultural resources and environment College of Environmental and Resource SciencesZhejiang UniversityHangzhou 310058China college of Geography and environment Shandong Normal UniversityJinan 250014China Centre de Coopération Internationale en Recherche Agronomique pour le Développement(CIRAD) UMR Eco&SolsHanoiVietnam Eco&Sols Universitéde Montpellier(UMR)CIRADInstitut National de Recherche pour l’Agriculturel’Alimentation et l’Environnement(INRAE)Institut de Recherche pour le Développement(IRD)Montpellier SupAgro34060 MontpellierFrance Alliance of Biodiversity International and International Center for Tropical Agriculture(CIAT) Asia hubCommon Microbial Biotechnology Platform(CMBP)HanoiVietnam School of Life and environmental sciences Faculty of ScienceEngineering and Built Environment–Deakin UniversityMelbourneVIC 3125Australia Rubber Research Institute Chinese Academy of Tropical Agricultural SciencesHaikou 571737China La Trobe Institute for Sustainable Agriculture and Food Department of AnimalPlant&Soil SciencesLa Trobe UniversityBundooraVic 3086Australia

Heat waves associated with global warming and extreme climates would arouse serious consequences on nitrogen(N)***,the responses of the functional guilds to different temperatures,especially high temperature and the cascading effect on N_(2)O emissions remain *** incubation study was conducted to examine the effect of different temperatures(20°C,30°C,and 40°C)and fertilizer types(urea and manure)on N_(2)O-producers and N_(2)O-reducers,as well as the efficacy of dicyandiamide(DCD)on N_(2)O emissions in a vegetable *** showed that ammonia oxidizers and nirS-type denitrifiers were well adapted to high temperature(40°C)with manure application,while the fungal nirK-denitrifiers had better tolerance with urea *** nosZ clade I microbes had a strong adaptability to various temperatures regardless of fertilization type,while the growth of nosZ clade II group microbes in non-fertilized soil(control)were significantly inhibited at higher *** N_(2)O emissions were significantly decreased with increasing temperature and DCD application(up to 60%,even at 40°C).Under high temperature conditions,fungal denitrifiers play a significant role in N-limited soils(non-fertilized)while nirS-type denitrifiers was more important in fertilized soils in N_(2)O emissions,which should be specially targeted when mitigating N_(2)O emissions under global warming climate.

关键词： nitrogen fertilizer microorganisms nitrification inhibitor bacteria archaea fungi

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Littoral landforms of Lake Hulun and Lake Buir(China and Mongolia):Wind-driven hydro-sedimentary dynamics and resulting clastics distribution

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Journal of Palaeogeography 2024年第2期13卷 309-326页

作者： Li Wang Mathieu Schuster Shi-Wei Xin Florin Zainescu Xin-Yu Xue Joep Storms Jan-Hendrik May Alexis Nutz Helena van der Vegt Guilherme Bozetti Zai-Xing Jiang School of energy resources China University of Geosciences(Beijing)Beijing100083China Universite de Strasbourg CNRSENGEESInstitut Terre et Environnement de StrasbourgUMR 70635 Rue DescartesStrasbourgFrance Tamsag Mongolia(XIX)Ltd. PetroChinaDaqing 163000China CEREGE Aix-Marseille UniversitéCNESIRDCollege de FranceINRAAix en ProvenceFrance School of Marine Science Sun Yat-sen UniversityZhuhai 519083China Delft University of Technology Department of Geoscience and EngineeringDelfthe Netherlands School of Geography Earth and Atmospheric SciencesUniversity of Melbourne253 Elgin St.CarltonVIC 3053Australia Deltares Delfthe Netherlands SCMF Faculty of GeographyUniversity of Bucharest1 N.Balcescu Blv.BucharestRomania

Two rectangular-shaped lakes,Lake Hulun and Lake Buir,located at the boundary between China and Mongolia,only c.75 km apart and therefore experiencing similar wind fields,have been studied based on satellite images and field surveys in order to compare their geomorphological and sedimentological *** wind-driven hydrodynamics,which have a significant effect on the development of littoral landforms and on sediment distribution,have been discussed for the two similar lakes that experienced a prevailing wind perpendicular to their long axis.A conceptual model related to wind-driven water bodies and sediment distribution is ***-influenced to wave-dominated deltas,beaches,spits,and eolian dune deposits develop around these two lakes,with a strikingly similar distribution *** features locally inform the longshore drift and help reconstruct the water circulation induced by wind *** the NW prevailing wind regime,the spits developed on the SW coast with a NW—SE extension,which was influenced by the NW—SE longshore *** same influence was observed in the delta extension in the NE *** differences lie in the presence of fan deltas in the NW region of Lake Hulun,but not in Lake ***,the width of the beach and eolian deposits on the downwind coast of Lake Hulun is three times greater than that of Lake Buir which were caused by the differences in sediment supply and wind fetch between the two *** Hulun and Lake Buir provide two reliable examples to understand the relationship among the wind field,provenance,hydrodynamics,landforms,and asymmetrical distribution of clastics in elongated *** also represent relevant modern analogs,which may also be of guiding significance to wind-driven sand body prediction in lacustrine basins.

关键词： Wind-driven lakes Fetch Sedimentary facies Hydrodynamics Geomorphology Spits Shoreline Lake Hulun Lake Buir

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Significant loss of soil inorganic carbon at the continental scale

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National Science Review 2022年第2期9卷 13-20页

作者： Xiao-Dong Song Fei Yang Hua-Yong Wu Jing Zhang De-Cheng Li Feng Liu Yu-Guo Zhao Jin-Ling Yang Bing Ju Chong-Fa Cai Biao Huang Huai-Yu Long Ying Lu Yue-Yu Sui Qiu-Bing Wang Ke-Ning Wu Feng-Rong Zhang Ming-Kui Zhang Zhou Shi Wan-Zhu Ma Gang Xin Zhi-Ping Qi Qing-Rui Chang en Ci Da-Gang Yuan Yang-Zhu Zhang Jun-Ping Bai Jia-Ying Chen Jie Chen Yin-Jun Chen Yun-Zhong Dong Chun-Lan Han Ling Li Li-Ming Liu Jian-Jun Pan Fu-Peng Song Fu-Jun Sun Deng-Feng Wang Tian-Wei Wang Xiang-Hua Wei Hong-Qi Wu Xia Zhao Qing Zhou Gan-Lin Zhang State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of Sciences college of Advanced Agricultural sciences University of Chinese Academy of Sciences college of resources and environment Huazhong Agricultural University Institute of Agricultural resources and Regional Planning Chinese Academy of Agricultural Sciences college of Natural resources and environment South China Agricultural University Northeast Institute of Geography and Agroecology Chinese Academy of Sciences college of Land and environment Shenyang Agricultural University School of Land Science and Technology China University of Geosciences college of Land Science and Technology China Agricultural University college of environmental and Resource sciences Zhejiang University Institute of Digital Agriculture Zhejiang Academy of Agricultural Sciences college of Agriculture Heilongjiang Bayi Agricultural University Tropical Crops Genetic resources Institute Chinese Academy of Tropical Agricultural Sciences college of Natural resources and environment Northwest A & F University college of resources and environment Southwest University college of resources Sichuan Agricultural University college of resources and environment Hunan Agricultural University Institute of Agricultural Product Quality Standard and Testing Research Tibet Academy of Agricultural and Animal Husbandry Sciences School of Agricultural sciences Zhengzhou University Institute of Agriculture environment and resources Research Shanxi Academy of Agricultural Sciences college of resources and environment Henan Agricultural University college of resources and environment China Agricultural University college of resources and environmental sciences Nanjing Agricultural University college of resources and environment Shandong Agricultural University Agricultural college Guangxi University college of Grassland and environment Science Xinjiang Agricultural University college of Geographical Science Qinghai Normal University

Widespread soil acidification due to atmospheric acid deposition and agricultural fertilization may greatly accelerate soil carbonate dissolution and ***,to date,few studies have addressed these ***,we use meta-analysis and nationwide-survey datasets to investigate changes in soil inorganic carbon(SIC) stocks in *** observe an overall decrease in SIC stocks in topsoil(0-30 cm)(11.33 g C m-2yr-1) from the 1980 s to the 2010 *** SIC stocks have decreased by～8.99±2.24%(1.37±0.37 Pg C).The average SIC losses across China(0.046 Pg C yr-1) and in cropland(0.016 Pg C yr-1) account for～17.6%-24.0% of the terrestrial C sink and 57.1% of the soil organic carbon sink in cropland,*** deposition and climate change have profound influences on SIC *** estimate that～19.12%-19.47% of SIC stocks will be further lost by *** consumption of SIC may offset a large portion of global efforts aimed at ecosystem carbon sequestration,which emphasizes the importance of achieving a better understanding of the indirect coupling mechanisms of nitrogen and carbon cycling and of effective countermeasures to minimize SIC loss.

关键词： China soil inorganic carbon stocks global change carbonate soil acidification

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Genetic variation in a heat shock transcription factor modulates cold tolerance in maize

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Molecular Plant 2024年第9期17卷 1423-1438页

作者： Lei Gao Lingling Pan Yiting Shi Rong Zeng Minze Li Zhuoyang Li Xuan Zhang Xiaoming Zhao Xinru Gong Wei Huang Xiaohong Yang Jinsheng Lai Jianru Zuo Zhizhong Gong Xiqing Wang Weiwei Jin Zhaobin Dong Shuhua Yang State Key Laboratory of Plant environmental Resilience Frontiers Science Center for Molecular Design BreedingCollege of Biological SciencesCenter for Crop Functional Genomics and Molecular BreedingChina Agricultural UniversityBeijing 100193China State Key Laboratory of Maize Bio-breeding National Maize Improvement CenterFrontiers Science Center for Molecular Design BreedingDepartment of Plant Geneticsand BreedingChinaAgricultural UniversityBeijingChina State Key Laboratory of Plant Genomics and National Plant Gene Research Center Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing100101China

Understanding how maize(Zea mays)responds to cold stress is crucial for facilitating breeding programs of cold-tolerant *** extensive utilization of the genome-wide association study(GWAs)approach for exploring favorable natural alleles associated with maize cold tolerance,few studies have successfully identified candidate genes that contribute to maize cold *** this study,we used a diverse panel of inbred maize lines collected from different germplasm sources to perform a GWAS on var-iations in the relative injured area of maize true leaves during cold stress-a trait very closely correlated with maize cold *** identified HsF21,which encodes a B-class heat shock transcription factor(HSF)that positively regulates cold tolerance at both the seedling and germination *** varia-tions in the promoter of the cold-tolerant HSF21Hap1 allele led to increased HSF21 expression under cold stress by inhibiting binding of the basic leucine zipper bziP68 transcription factor,a negative regulator of cold *** integrating transcriptome deep sequencing,DNA affinity purification sequencing,and targeted lipidomic analysis,we revealed the function of HsF21 in regulating lipid metabolism homeo-stasis to modulate cold tolerance in *** addition,we found that HsF21 confers maize cold tolerance without incurring yield ***,this study establishes HsF21 as a key regulator that en-hances cold tolerance in maize,providing valuable genetic resources for breeding of cold-tolerant maize varieties.

关键词： heat shock factor HSF21 cold tolerance natural variation bZiP68 lipid metabolism maize

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Comparative Study on Rain Splash Erosion of Representative Soils in China

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Chinese Geographical Science 2008年第2期18卷 155-161页

作者： CHenG Qinjuan CAI Qiangguo MA Wenjun Institute of Geographic sciences and Natural resources Research Chinese Academy of Sciences Beijing 100101 China Graduate University of the Chinese Academy of sciences Beoing 100049 China college of resources and environment China Agricultural University Beijing 100094 China

As the first event of soil erosion, rain splash erosion supplies materials for subsequent transportation and en-trainment. The Loess Plateau, the southern hilly region and the Northeast China are subject to serious soil and water loss; however, the characteristics of rain splash erosion in those regions are still unclear. The objectives of the study are to ana-lyze the characteristics of splash erosion on loess soil, red soil, purple soil and black soil, and to discuss the relationship between splash erosion and soil properties. Soil samples spatially distributed in the abovementioned regions were col-lected and underwent simulated rainfalls at a high intensity of 1.2mm/min, lasting for 5, 10, 15, and 20min, respectively. Rain splash and soil crust development were analyzed. It shows that black soil sample from Heilongjiang Province corre-sponds to the minimum splash erosion amount because it has high aggregate content, aggregate stability and organic mat-ter content. Loess soil sample from Inner Mongolia corresponds to the maximum splash erosion amount because it has high content of sand particles. Loess soil sample from Shanxi Province has relatively lower splash erosion amount be-cause it has high silt particle content and low aggregate stability easily to be disrupted under rainfalls with high intensity. Although aggregate contents of red soil and purple soil samples from Hubei and Guangdong provinces are high, the sta-bility is weak and prone to be disrupted, so the splash erosion amount is medium. Splash rate which fluctuates over time is observed because soil crust development follows a cycling processes of formation and disruption. In addition, there are two locations of soil crust development, one appears at the surface, and the other occurs at the subsurface.

关键词： rain splash erosion black soil loess soil red soil purple soil soil crust

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A summary of Copepoda:synthesis,trends,and ecological impacts

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Journal of Oceanology and Limnology 2023年第3期41卷 1050-1072页

作者： Vinod VAKATI Juan Manuel FUenTES-REINÉS Pengbin WANG Jun WANG Steven DODSWORTH Key Laboratory of Conservation and Utilization of Fish resources College of Life SciencesNeijiang Normal UniversityNeijiang 641100China Universidad del Magdalena Grupo de Investigación en Biodiversidad y Ecología AplicadaSanta Marta AA 731Colombia Key Laboratory of Marine Ecosystem Dynamics the Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China Fourth Institute of Oceanography Ministry of Natural ResourcesBeihai 536000China Department of Life Science College of Natural SciencesHanyang UniversitySeoul 04763Republic of Korea School of Biological sciences University of PortsmouthPortsmouth PO12DYUnited Kingdom

Copepoda are one of the most significant animal groups present in aquatic ***,evolutionary biologists,and biotechnologists continue to test new methods to study the application of Copepoda as model organisms in various fields of pure and applied science,from evolution and ecology to aquaculture as live feed,as biological control of mosquito larvae,as biological indicators of water and sediment quality,in environmental monitoring and as a source of protein in the food *** paper reviews the current progress and trends within copepod research from a number of different *** emphasize the importance of Copepoda and the necessity of strengthening research on various topics related to copepod biology,some of which are of great significance to local sustainable development.

关键词： bioindicators aquaculture pollutants eutrophication nutrition halotolerance

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