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Spatiotemporal dynamics of ecosystem fires and biomass burning-induced carbon emissions in China over the past two decades

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Geography and Sustainability 2020年第1期1卷 47-58页

作者： anping Chen Rongyun Tang jiafu Mao Chao Yue Xiran Li Mengdi Gao Xiaoying Shi Mingzhou jin Daniel Ricciuto Sam Rabin Phillippe Ciais Shilong Piao Department of Biology Colorado State UniversityFort CollinsCO 80523USA Graduate Degree Program in Ecology Colorado State UniversityFort CollinsCO 80523USA Department of Industrial and Systems Engineering University of TennesseeKnoxvilleTN 37996USA Environmental Sciences Division and Climate Change Science Institute Oak Ridge National LaboratoryOak RidgeTN 37831USA State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau Northwest Agriculture&Forestry UniversityYanglingShanxi 712100China College of Urban and Environmental Sciences Central China Normal UniversityWuhanHubei 430079China Sino-French Institute for Earth System Science College of Urban and Environmental SciencesPeking UniversityBeijing 100871China Atmospheric Environmental Research(IMK-IFU) Institute of Meteorology and Climate ResearchKarlsruhe Institute of Technology(KIT)Kreuzeckbahnstraße 19Garmisch-Partenkirchen 82467Germany LSCE UMR CEA-CNRSBat.709CEL’Orme des MerisiersGif-sur-Yvette 91191France

Fire is a major type of disturbance that has important influences on ecosystem dynamics and carbon *** our understanding of ecosystem fires and their carbon cycle consequences is still limited,largely due to the difficulty of large-scale fire monitoring and the complex interactions between fire,vegetation,climate,and anthropogenic ***,using data from satellite-derived fire observations and ecosystem model simulations,we performed a comprehensive investigation of the spatial and temporal dynamics of China’s ecosystem fire disturbances and their carbon emissions over the past two decades(1997–2016).Satellite-derived results showed that on average about 3.47-4.53×10^(4) km^(2) of the land was burned annually during the past two decades,among which annual burned forest area was about 0.81-1.25×10^(4) km^(2),accounting for 0.33-0.51%of the forest area in *** burning emitted about 23.02 TgC per *** to satellite products,simulations from the Energy Exascale Earth System Land Model(ELM)strongly overestimated China’s burned area and fire-induced carbon *** burned area and fire-induced carbon emissions were high for boreal forest in Northeast China’s Daxing’anling region and subtropical dry forest in South Yunnan,as revealed by both the satellite product and the model *** results suggest that climate and anthropogenic factors play critical roles in controlling the spatial and seasonal distribution of China’s ecosystem fire *** findings highlight the importance of multiple complementary approaches in assessing ecosystem fire disturbance and its carbon *** studies are required to improve the methods of observing and modelling China’s ecosystem fire disturbances,which will provide valuable information for fire management and ecosystem sustainability in an era when both human activities and the natural environment are rapidly changing.

关键词： Fire emission Burned area Fire models China

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Development and Validation of a Simoa Assay for Determination of Recombinant Batroxobin in Human Serum

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Current Medical Science 2021年第3期41卷 618-625页

作者： Bian-zhen WANG Meng-jia WANG Min-rui WANG Lun ou Li-hou DONG Kelly DONG Hai-feng SONG State Key Laboratory of Proteomics Beijing Proteome Research CenterNational Center of Protein Sciences(Beijing)Beijing Institute of LifeomicsBeijing 102206China United-Power Pharma Tech Co LtdBeijing J02206China

Recombinant batroxobin(S3101)is a thrombin-like serine protease that binds to fibrinogen or is taken up by the reticuloendothelial system.A literature survey showed no adequate method that could determine sufficient concentrations to evaluate pharmacokinetic parameters for phase I clinical ***,a sensitive method is urgently needed to support the clinical pharmacokinetic evaluation of *** this study,a sensitive bioanalytical method was developed and validated,using a Quanterix single molecular array(Simoa)***,to thoroughly assess the platform,enzyme-linked immunosorbent assay and electrochemiluminescence assay were also developed,and their performance was compared with that of this novel technology *** assay was validated in compliance with the current *** with the Simoa assay were precise and accurate,presenting a valid assay range from 6.55 to 4000 pg/*** intra-and inter-run accuracy and precision were within-19.3%to 15.3%and 5.5%to 17.0%,respectively.S3101 was stable in human serum for 280 days at-20℃and-70℃,for 2 h prior to pre-treatment and 24 h post pre-treatment at room temperature(22℃-28℃),respectively,and after five and two freeze-thaw cycles at-70℃and-20oC,*** Simoa assay also demonstrated sufficient dilution linearity,assay sensitivity,and parallelism for quantifying S3101 in human *** Simoa assay is a sensitive and adequate method for evaluating the pharmacokinetic parameters of S3101 in human serum.

关键词： enzyme-linked immunosorbent assay electrochemiluminescence assay quanterix single molecular array recombinant batroxobin ligand-binding assay

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Maternal Vascular Dysfunction in Congenital Heart Defects

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Congenital Heart Disease 2023年第5期18卷 561-570页

作者： Yanli Liu Fengzhen Han jian Zhuang Yanqiu ou Yanji Qu Yanyan Lin Weina Zhang Haiping Wang Liping Huang Department of Obstetrics and Gynecology Nanfang HospitalSouthern Medical UniversityGuangzhou510515China Department of Obstetrics and Gynecology Guangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhou510080China Prenatal Diagnosis Centre Guangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhou510080China Department of Cardiovascular Surgery Guangdong Cardiovascular InstituteGuangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhou510080China Global Health Research Center Guangdong Cardiovascular InstituteGuangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhou510080China

Background:Research on fetal congenital heart defect(CHD)mostly focuses on etiology and ***,studies on maternal complications or pathophysiology are *** objective was to determine whether vascular dysfunction exists in pregnant women carrying a fetus with congenital heart ***:We conducted a case-control study.27 cases of pregnant women carrying a fetus with major CHD admitted to our hospital for delivery between April 2021 and August 2022 were *** case was matched with about 2 pregnant complication-free controls without fetal *** proangiogenic and anti-angiogenic factors and pregnancy outcomes were ***:The proangiogenic factors include vascular endothelial growth factor(VEGF)and placental growth factor(PlGF).The anti-angiogenic factors involve soluble fms-like tyrosine kinase 1(sFlt-1)and soluble endoglin(sEng).No differences were found in maternal plasma concentrations of PlGF,VEGF,and sFlt-1 between case-control groups when analyzed at 36 weeks≤gestational age(GA)oup were significantly higher than those in the control group:0.60(0.77)vs.0.32(0.26)ng/ml at 36 weeks≤GA<39 weeks,p=0.001 and 0.75(0.55)vs.0.28(0.27)ng/ml at 39 weeks≤GA≤41 weeks,p<***:Vascular dysfunction exists in pregnant women with fetal congenital heart defects,manifesting significantly elevated sEng concentration at delivery.

关键词： Congenital heart defects vascular dysfunction placental growth factor soluble fms-like tyrosine kinase 1 vascular endothelial growth factor soluble endoglin fetus pregnancy maternal complication

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不同复合添加剂对饲料桑与王草混合青贮品质与微生物多样性的影响

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中国畜牧兽医 2024年第7期51卷 2849-2859页

作者：陈荣强雷小文吴丽娟欧翔连海张强邱静芸操贤洪严蕾蔡小芬赣州市畜牧水产研究所赣州341401

【目的】研究不同复合添加剂对饲料桑(Morus alba L.)与热研4号王草(Pennisetum purpureum×Pennisetum americanum *** No.4)混合青贮品质和微生物多样性的影响。【方法】采用随机区组试验设计,设置对照组(CK)、复合菌制剂组(j,植物乳... 详细信息

【目的】研究不同复合添加剂对饲料桑(Morus alba L.)与热研4号王草(Pennisetum purpureum×Pennisetum americanum *** No.4)混合青贮品质和微生物多样性的影响。【方法】采用随机区组试验设计,设置对照组(CK)、复合菌制剂组(j,植物乳杆菌+枯草芽孢杆菌)、复合酶制剂组(M,纤维素酶+木聚糖酶)和复合菌酶制剂组(jM,植物乳杆菌+枯草芽孢杆菌+纤维素酶+木聚糖酶)4个处理组,每组6个重复,青贮60 d后,分析青贮饲料的营养成分、发酵品质和微生物多样性,并使用V-score评分体系、模糊数学隶属函数法对发酵效果进行评价。【结果】与CK组相比,其余各组混合青贮饲料的青贮品质均有不同程度提升,其中j、M、jM组粗蛋白质、可溶性碳水化合物含量显著升高(PjM组的乳酸、乙酸含量显著升高(PjM组评分最高(88.93分)。各组隶属函数均值大小排序为jM>j>M>CK。与CK组相比,其余各组青贮微生物Shannon指数、Simpson指数、Chao1指数、Ace指数均显著下降(Pj、jM组的厚壁菌门相对丰度显著提高、变形菌门相对丰度显著降低(Pj、M、jM组的植物乳杆菌属(Lactiplantibacillus)相对丰度显著提高,肠杆菌科未分类属(unclassified_Enterobacteriaceae)相对丰度显著降低(Pj、jM组芽孢杆菌属(Bacillus)相对丰度显著提高(PjM组肠杆菌属(Enterobacter)相对丰度显著降低(P<0.05)。【结论】添加复合菌制剂、复合菌酶制剂或复合菌酶制剂均能不同程度改善饲料桑与王草混合青贮营养成分、发酵品质,且能提高有益菌丰度、降低有害菌丰度。综合考虑,添加复合菌酶制剂更适合饲料桑与王草混合青贮。

关键词：饲料桑王草混合青贮营养成分发酵品质微生物多样性

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Allele-defined genome reveals biallelic differentiation during cassava evolution

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Molecular Plant 2021年第6期14卷 851-854页

作者： Wei Hu Changmian ji Haitao shi Zhe Liang Zehong Ding jianqiu Ye Wenjun ou Gang Zhou Weiwei Tie Yan Yan jinghao Yang Xiaoying Yang Yunxie Wei Zhiqiang jin jianghui Xie Ming Peng Wenquan Wang anping Guo Biyu Xu jianchun Guo Songbi Chen Liming Ma Mingcheng Wang Yang Zhou Xiaolong Li Ruoxi Li Siyi Guo Xinhui Xiao Zhongqing Wan Feifei An jie Zhang Qingyun Leng Yin Li Ray Ming Kaimian Li Sanya Research Institute of Chinese Academy of Tropical Agricultural Sciences SanyaHainanChina Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions Key Laboratory of Biology and Genetic Resources of Tropical CropsInstitute of Tropical Bioscience and BiotechnologyChinese Academy of Tropical Agricultural SciencesHaikouHainanChina Hainan Key Laboratory for Protection and Utilization of Tropical Bioresources Hainan Institute for Tropical Agricultural ResourcesChinese Academy of Tropical Agricultural SciencesHaikouHainanChina Biomarker Technologies Corporation BeijingChina Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources College of Tropical CropsHainan UniversityHaikouHainanChina Biotechnology Research Institute Chinese Academy of Agricultural SciencesBeijingChina Tropical Crops Genetic Resources Institute Chinese Academy of Tropical Agricultural SciencesHaikouHainanChina College of Food Science and Technology Qilu University of Technology(Shandong Academy of Sciences)JinanChina Fu Foundation School of Engineering and Applied Science Columbia UniversityNew YorkUSA State Key Laboratory of Crop Stress Adaptation and Improvement School of Life SciencesHenan UniversityKaifengChina The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology the Key Laboratory of Molecular Biophysics of Chinese Ministry of EducationCollege of Life Science and TechnologyHuazhong University of Science&TechnologyWuhanChina FAFU and UIUC-SIB joint Center for Genomics and Biotechnology Fujian Provincial Key Laboratory of Haixia Applied Plant Systems BiologyKey Laboratory of GeneticsBreeding and Multiple Utilization of CropsMinistry of EducationFujian Agriculture and Forestry UniversityFuzhouChina Department of Plant Biology University of Illinois at Urbana-ChampaignUrbanaILUSA

Dear Editor,Generation of heterozygous genomes by hybridization between or within species can help maintain plant diversity and serve as a potential source of new species(Baek et al.,2018).Moreover,genomic heterozygosity is associated with genomic coadaptation,developmental stability,and *** definition of alleles in haplotypes is necessary to precisely characterize allelic variation controlling agriculturally important traits(Shi et al.,2019).Currently,most released genomes have mosaic assembly of haplotypes due to random selection or collapse of alleles during genome assembly(Shi et al.,2019),which masked allelic variation and functional differentiation of divergent alleles in heterozygous species.

关键词： maintain evolution assembly

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基于电子鼻技术评定刨花板气味等级方法初探

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中国人造板 2024年第4期31卷 31-36页

作者：欧雪冰林锐航黄镇森关能严小意李晓增广州质量监督检测研究院广州510110

以刨花板为研究对象,通过PEN3电子鼻对不同气味等级的刨花板样品进行气味检测和数据分析。结果表明,PEN3电子鼻结合主成分分析法(PCA)可对刨花板气味等级进行区分,但对LY/T 3236—2020《人造板及其制品气味分级及其评价方法》中的“气... 详细信息

以刨花板为研究对象,通过PEN3电子鼻对不同气味等级的刨花板样品进行气味检测和数据分析。结果表明,PEN3电子鼻结合主成分分析法(PCA)可对刨花板气味等级进行区分,但对LY/T 3236—2020《人造板及其制品气味分级及其评价方法》中的“气味明显,但气味不令人难受”“明显让人感觉难受的气味”这2个等级未能准确区分。建议扩充各气味等级刨花板样本量,并以此建立样品LY/T 3236—2020气味等级检测结果与电子鼻数据间的模型,完善刨花板气味等级电子鼻检测数据库,实现新样品气味的电子鼻快速检测。

关键词：电子鼻刨花板气味

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不同水分管理对小麦各品种光合特性及产量的影响

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河南科技学院学报（自然科学版） 2024年第1期52卷 1-8页

作者：李豪杰王浩博郑梦瑶王颜玉欧行奇郑会芳河南科技学院农学院河南新乡453003

不同水分管理影响小麦各品种光合特性,进而影响小麦产量.为了提高小麦产量,研究以百农207(BN207)、百农307(BN307)和洛旱27(LH27)为试验材料,设置灌溉(I)和雨养(R)两种水分处理,研究不同水分管理对小麦旗叶净光合速率(P_(n))、叶绿素荧... 详细信息

不同水分管理影响小麦各品种光合特性,进而影响小麦产量.为了提高小麦产量,研究以百农207(BN207)、百农307(BN307)和洛旱27(LH27)为试验材料,设置灌溉(I)和雨养(R)两种水分处理,研究不同水分管理对小麦旗叶净光合速率(P_(n))、叶绿素荧光参数及产量的影响.与雨养处理相比,BN207、BN307、LH27的P_(n)在灌溉处理下分别增加53.48%、81.45%、42.83%.单位反应中心吸收的光能(ABS/RC)、单位反应中心捕获的用于电子传递的能量(ET_(O)/RC)和单位反应中心捕获的用于还原Q_(A)的能量(TR_(O)/RC)在灌溉处理下3个小麦品种均高于雨养处理,而单位反应中心耗散掉的能量(DIO/RC),BN207和LH27更高,BN307在灌溉条件下反而更低.3个小麦品种的叶绿素荧光诱导曲线(OjIP)变化趋势相同,但荧光值具有差异:BN207和LH27在灌溉条件下O点荧光强度高于雨养条件,j、I、P点荧光强度低于雨养条件;BN307在灌溉条件下O、j、I点荧光强度高,P点强光强度低.在灌溉处理下,BN207产量提高20.12%、穗粒数降低14.66%、穗数提高51.98%,千粒质量降低3.11%;在灌溉条件下,BN307产量提高53.71%、穗粒数提高5.03%、穗数提高51.74%、千粒质量降低7.99%;在灌溉条件下,LH27产量、穗粒数和穗数分别提高了14.83%、0.68%和20.43%,而千粒质量则降低了3.15%.灌溉处理能提高小麦光系统中电子传递链的能量传递、提高旗叶净光合速率,主要通过增加穗数来提高小麦产量.BN307、BN207在灌溉处理下产量提高最显著,更适合在灌溉条件充足的条件下种植,而LH27对灌溉不足的条件的适应性更强.

关键词：水分管理小麦光合效率叶绿素荧光参数产量

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贵州高原三板溪水库浮游植物功能群时空分布特征

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环境科学学报 2015年第2期35卷 418-428页

作者：黄国佳李秋华陈椽王安平杨民张垒欧腾贵州师范大学贵州省山地环境信息系统和生态环境保护重点实验室贵阳550001 贵州师范大学生命科学学院贵阳550001 贵州省环境监测中心站贵阳550002

为探究贵州高原三板溪水库的浮游植物功能群时空分布特征,于2012—2013年枯水期(11月)、平水期(4月)、丰水期(7月)对三板溪水库浮游植物与水样进行分层采样分析.研究结果表明,水库浮游植物可分为21个功能群,其优势功能群具有明显的水期... 详细信息

为探究贵州高原三板溪水库的浮游植物功能群时空分布特征,于2012—2013年枯水期(11月)、平水期(4月)、丰水期(7月)对三板溪水库浮游植物与水样进行分层采样分析.研究结果表明,水库浮游植物可分为21个功能群,其优势功能群具有明显的水期分布特征:枯水期P+X1+D+j→平水期P+B+C+G→丰水期M+H1+S1+j,垂直分布中平水期和丰水期优势功能群在10 m左右发生变化,枯水期在70 m处变化;各时期水体热分层及营养物质分布差异是产生该特征的主要原因;浮游植物功能群时空分布特征受环境变化影响,水温、p H和N/P变化是浮游植物功能群结构变化的最主要因素;浮游植物功能群生长策略变化规律为:枯水期CR/C/S策略藻种→平水期R/CR/CS策略藻种→丰水期S/CS/CR/R策略藻种;通过浮游植物功能群与生境之间的相互关系可以得出:三板溪水库水体处于富营养状态.

关键词：浮游植物功能群时空分布 C-R-S生长策略三板溪水库

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中立双曲型偏微分方程解振动的充要条件

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武汉工业大学学报 2000年第2期22卷 89-91页

作者：刘安平欧卓玲中国地质大学武汉工业大学

讨论一类中立双曲型多滞量偏微分方程解的振动性质 ,获得了其一切解振动的充要条件 ;

关键词：中立型振动双曲型方程解充要条件

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Compact Dual-Frequency Fiber Laser Accelerometer With Sub-μg Resolution

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Photonic Sensors 2016年第2期6卷 115-120页

作者： Qian CAO Long jIN Yizhi LIANG Linghao CHENG Bai-ou GUAN Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications Institute of PhotonicsTechnology Jinan University Guangzhou 510632 China

We demonstrate a compact and high-resolution dual-polarization fiber laser accelerometer. A spring-mass like scheme is constructed by fixing a 10-gram proof mass on the laser cavity to transduce applied vibration into beat-frequency change. The loading is located at the intensity maximum of intracavity light to maximize the optical response. The detection limit reaches 107 ng/Hz1/2 at 200 Hz. The working bandwidth ranges from 60 Hz to 600 Hz.

关键词： Dual-frequency fiber lasers fiber Bragg grating photonic accelerometers

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