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Combining otolith elemental signatures with multivariate analytical models to verify the migratory pattern of Japanese Spanish mackerel(Scomberomorus niphonius) in the southern yellow Sea

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Acta Oceanologica Sinica 2020年第12期39卷 54-64页

作者： Xindong Pan Zhenjiang ye Binduo Xu tao Jiang Jian Yang Jiahua Cheng Yongjun Tian Fisheries College Ocean University of ChinaQingdao 266003China Key Laboratory of Ecological Environment and resources of Inland Fisheries Freshwater Fisheries Research CenterChinese Academy of Fishery SciencesWuxi 214081China East china Sea Fishery Research Institute Chinese Academy of Fishery SciencesShanghai 200090China Laboratory for marine Fisheries Science and Food Production Processes Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266071China Frontiers Science Center for Deep Ocean Multispheres and Earth System Ocean University of ChinaQingdao 266100China

Japanese Spanish mackerel,Scomberomorus niphonius,is a commercially important,highly migratory species that is widely distributed throughout the northwestern Pacific ***,its life history and migratory patterns are only partially *** study used otolith chemistry to investigate the migratory pattern of *** in the southern yellow Sea,an important fishing *** sections of otoliths from 15 age-1 spawning or spent individuals,comprising up to one complete migration cycle,were analyzed from the core to the margin by using laser ablation inductively coupled plasma mass *** ratios of the element to Ca were integrated with microstructural analysis to produce age-related elemental *** multielemental analysis of otolith composition with multivariate analytical models,we quantified structural changes in otolith chemistry *** revealed there were diverse changing patterns of otolith chemistry profiles for detected elements and the elements of Na,Mg,Sr and Ba were important for the chronological *** clusters were identified through chronological clustering,representing the five life stages from the early stage to the spawning *** of Ba:Ca ratio was most informative,showing a step-decreasing pattern in the first four stages and a rebound in the spawning *** results support the hypothesized migratory pattern of ***:hatching and spending their early life in the coastal sandy ridges system of the southern yellow Sea,migrating northeastward and offshore for feeding during juvenile stage,aggregating in early October and migrating outward to the Jeju Island for wintering,and returning to the coastal waters for *** study demonstrated the value of life-history related otolith chemistry profiles combined with multivariate analytical models was a means to verify the migration patterns of *** at regional scales with potential application in fisheries assess

关键词： otolith chemistry Scomberomorus niphonius migratory pattern multivariate regression tree southern yellow Sea

Ophiostomatales (Ascomycota) associated with Tomicus species in southwestern china with an emphasis on Ophiostoma canum

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Journal of Forestry Research 2020年第6期31卷 2549-2562页

作者： Yue Pan Jun Lu Peng Chen Zefen Yu Huihong Zhang Hui ye tao Zhao Eco-development Academy Southwest Forestry UniversityKunming 650224People’s Republic of China Laboratory of Biological Invasion and Ecosecurity Yunnan UniversityKunming 650091People’s Republic of China Yunnan Academy of Forestry and Grassland Kunming 650201People’s Republic of China Laboratory for Conservation and Utilization of Bio-resources Key Laboratory Resources of the Ministry of EducationYunnan UniversityKunming 650091People’s Republic of China Department of Science and Technology Orebro University70182 OrebroSweden

Ophiostomatalean fungi may facilitate bark beetle colonization and *** the present study of the fungal community associated with bark beetle species belonging to Tomicus in Yunnan,{2.,six ophiostomatalean fungi(Ophiostoma canum,***,***,Leptographium yunnanense,Leptographium sp.1 and Leptographium sp.2.were isolated from the beetles or their galleries;*** was the most common fungal *** distribution of *** was associated with stands heavily damaged by Tomicus species and a higher percentage of valid galleries of Tomicus yunnanensis and *** in Yunnan pine(Pinus yunnanensis).After inoculation of Yunnan pine with the fungus,a phloem reaction zone formed and monoterpenes accumulated in the *** results suggested that *** was pathogenic to Yunnan pine and that the wide distribution of the fungus might be benefi cial to reproduction of pine shoot beetles in Yunnan ***,because the reaction zone and monoterpene accumulation were mild,fungal damage of Yunnan pine might be limited.A more integrated study considering all the fungal species should be done to better understand the interactions among bark beetles,blue-stain fungi,and the tree hosts in the region.

关键词： Ophiostomatalean fungi Fungal isolation and identifi cation Ophiostoma canum Pinus yunnanensis Pathogenicity test

云南澳洲坚果青皮资源堆肥化开发利用现状与对策

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中国南方果树 2024年第4期53卷 259-264页

作者：张海清郭刚军叶廷红陶亮李婷玉吴超贺熙勇云南省热带作物科学研究所云南景洪666100 云南省澳洲坚果农业工程研究中心云南景洪666100

云南省是世界上最大的澳洲坚果种植区,产量及产地采后加工已形成规模。青皮是澳洲坚果初加工过程中的废弃物,鲜青皮质量占鲜果质量的1/2.右,数量庞大,其二次开发利用的价值正被逐步挖掘。结合云南省打造世界一流“绿色食品牌”发展规... 详细信息

云南省是世界上最大的澳洲坚果种植区,产量及产地采后加工已形成规模。青皮是澳洲坚果初加工过程中的废弃物,鲜青皮质量占鲜果质量的1/2.右,数量庞大,其二次开发利用的价值正被逐步挖掘。结合云南省打造世界一流“绿色食品牌”发展规划需要,将青皮堆肥化创制有机肥应用于澳洲坚果种植,实现资源高效循环利用,构建绿色可持续发展的生态链是当前青皮资源化开发应用的研究热点。本文分析了云南澳洲坚果主产区青皮资源产生量,及堆肥化开发利用现状,总结青皮堆肥开发应用中存在的问题,提出澳洲坚果青皮堆肥化绿色高效可持续发展策略。

关键词：澳洲坚果青皮废弃物堆肥资源化利用高效循环

甜玉米中F_(2.3)群体可溶性糖和子粒嫩度性状的数量性状位点(QTL)定位

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玉米科学 2024年第2期32卷 30-38页

作者：党冬冬秦涛于典司顾炜阮燕晔郑洪建王慧关媛上海市农业科学院作物育种栽培研究所/CIMMYT-中国特用玉米研究中心/上海特用玉米工程技术研究中心/上海市农业遗传育种重点实验室上海201403 沈阳农业大学生物科学技术学院沈阳110866

利用甜玉米自交系SHL03.SHL01为亲本构建的F_(2.3)群体,用离子色谱法(IC)测定葡萄糖(GLU)、果糖(FRU)、麦芽糖(maL)和蔗糖(SUC)的含量,用SMS测定果肉硬度(FH)、种皮硬度(PH)、种皮脆性(PB)和果肉紧实度(FM)。结果表明,总共定位到与可... 详细信息

利用甜玉米自交系SHL03.SHL01为亲本构建的F_(2.3)群体,用离子色谱法(IC)测定葡萄糖(GLU)、果糖(FRU)、麦芽糖(maL)和蔗糖(SUC)的含量,用SMS测定果肉硬度(FH)、种皮硬度(PH)、种皮脆性(PB)和果肉紧实度(FM)。结果表明,总共定位到与可溶性糖相关的QTL 3.个,子粒柔嫩度相关的QTL 2.个,位于1、2.3、4、5、6、7、8、10号染色体上,分别解释表型变异的1%~15.8%。主效QTL qFH3.1、qFH3.2.qFH5-2.qFH5-3.qGLU2.1、qGLU2.2.表型贡献率分别为12.2.、11.4%、12.1%、10.5%、15.8%和12.8%。在主效QTL的置信区间共找到44个注释基因,这些候选基因和相关的QTL为利用分子标记辅助选择具有更好可溶性糖含量的玉米材料和相关功能基因的克隆提供资源。

关键词：甜玉米可溶性糖子粒柔嫩性 QTL分析候选基因

断裂构造变形作用下的页岩气差异富集响应——以川东阳春沟断裂为例

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石油科学通报 2024年第05期9卷 713-723页

作者：叶欣胡涛闫思雨刘成林姜福杰中国石油大学(北京)地球科学学院中国石油大学(北京)油气资源与工程全国重点实验室中国石油化工股份有限公司石油勘探开发研究院

阳春沟地区是我国川东页岩气勘探的重点接替区域，阳春沟断裂为影响研究区页岩气成藏的重要构造，但研究程度整体较低。为明确阳春沟断裂构造变形特征及其对页岩气差异富集的地质意义，本文基于最新的三维地震资料解释，刻画了阳春沟断... 详细信息

阳春沟地区是我国川东页岩气勘探的重点接替区域，阳春沟断裂为影响研究区页岩气成藏的重要构造，但研究程度整体较低。为明确阳春沟断裂构造变形特征及其对页岩气差异富集的地质意义，本文基于最新的三维地震资料解释，刻画了阳春沟断裂的几何学特征，结合断层性质及活动时期分析了成因机制，探讨了阳春沟断裂与遵义断裂的关系以及对页岩气成藏的影响。研究表明：(1)阳春沟断裂主要为自东向西逆冲构造，具有左行压扭特征，纵向上表现为沿志留系、寒武系发生滑脱的多条叠置、近乎平行的逆冲滑脱断层带，控制了中浅层形变层的断展背斜；(2.阳春沟断裂不属于遵义断裂的一部分，二者变形特征差异巨大，具有完全不同的构造样式；(3.阳春沟断裂形成于雪峰造山导致遵义断层左行逆冲走滑和晚期弧形褶皱过程中，经历了晚侏罗世—晚白垩世的不均匀收缩和晚白垩世自东向西逆冲滑脱；(4)阳春沟断层形成了阳春沟背斜和复杂缝网，其中阳春沟背斜降低了页岩埋深、减缓了页岩热演化，复杂缝网增加了储集空间，但未严重破坏保存条件，二者有利于页岩气运移和聚集成藏，而地层高陡和压扭断层的发育则对页岩气藏起破坏作用。研究结果对认识盆山耦合过程及页岩气勘探提供了参考。

关键词：阳春沟断层双重逆冲滑脱成因机制页岩气勘探四川盆地

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高校体育代表队发展方向刍议

四川体育科学 2002年第4期21卷 86-87页

作者：陶冶董扬彭勇成都理工大学体育部四川成都610059 上海交通大学上海200030 成都市金堂县城关中学校四川金堂610400

把高校体育代表队建成一个符合现代体育发展方向,培养现代体育人才基地,为更加充分合理地开发体育资源,避免体育资金浪费,解决遗留问题,使之更科学地运作,良性循环。

关键词：高校体育现代体育体育资金育人体育资源人才基地培养良性循环合理

Feeding strategies of Euphausia superba in the eastern South Shetland Islands in austral summer

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Acta Oceanologica Sinica 2019年第10期38卷 75-83页

作者： Mengtan Liu Zhencheng tao ye Zhang Guang Yang Song Sun Chaolun Li Fengfeng Le Jiaozhou Bay National marine Ecosystem Research Station Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for marine Ecology and Environmental Science Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China Key Laboratory of marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China East Sea marine Environmental Investigating and Surveying Center Ministry of Natural ResourcesShanghai 200137China Laboratory of marine Ecosystem and Biogeochemistry Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China

Euphausia superba is a key species in the Southern Ocean that serves as a link between primary production and higher trophic *** investigate the feeding strategies of *** from the eastern South Shetland Islands,fatty acid biomarkers,stable isotope signatures,and an incubation experiment were *** results of the incubation experiment proved that adult *** mainly fed on {3.{3.μm particles,demonstrating the importance of nanoplankton in their ***,significant positive relationships betweenδ15N and body size demonstrated that size-related dietary shifts were present in *** from principal component analysis and the C16:1ω7/C18:4ω3.ratio showed that juveniles preferentially fed on dinoflagellates and adults were more likely to feed on *** acid profiles in adult *** roughly mirrored the different trophic conditions and feeding strategies between *** *** at Stas D{3.07,D5-07,DA-01 and DA-0{3.exhibited elevated levels of C16:1ω7,C18:4ω3.C18:1ω9 and C18:1ω9/C18:1ω7,indicating higher levels of feeding on both phytoplankton and higher trophic *** contrast,adult *** at Stas D1-03.and D1-04 were characterized by high levels of polyunsaturated fatty acids/saturated fatty acids ratios and low levels of C16:1ω7,C18:1ω7,C18:4ω3.C18:1ω9 and total fatty *** inferred that adult krill at Stas D1-03.and D1-04 still suffered from difficult dietary conditions after *** different dietary conditions between stations suggest a highly plastic feeding strategy of *** in the eastern South Shetland Islands.

关键词： Euphausia superba South Shetland Islands fatty acids stable isotopes

渝南地区二叠系龙潭组C_(2.)煤层煤层气基础地质条件分析

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油气藏评价与开发 2024年第3期14卷 492-503页

作者：薛冈郭涛张烨徐向阳汪威韩克宁郭东鑫金晓波中国石化华东油气分公司江苏南京210019 自然资源部页岩气资源勘查重点实验室(重庆地质矿产研究院) 重庆401120

渝南地区二叠系龙潭组煤层气勘探开发处于起步阶段,为揭示该区主力煤层C_(2.)的煤层气基础地质条件,基于区内煤田钻孔、煤层气钻井获取的地质资料和实验测试数据,对煤岩煤质、煤层孔渗、含气性等特征进行了分析。结果表明:研究区二叠系... 详细信息

渝南地区二叠系龙潭组煤层气勘探开发处于起步阶段,为揭示该区主力煤层C_(2.)的煤层气基础地质条件,基于区内煤田钻孔、煤层气钻井获取的地质资料和实验测试数据,对煤岩煤质、煤层孔渗、含气性等特征进行了分析。结果表明:研究区二叠系龙潭组C_(2.)煤层具有“发育稳定、厚度相对大、孔渗低、变质程度高、含气量高”的特征。C_(2.)煤层全区发育稳定,呈“北厚南薄”的趋势,北部一般大于1.5 m;煤岩煤质属于半亮型煤;有机组分中镜质组含量介于51.7%~72.2.;镜质组最大反射率整体介于1.8%~2.2.,变质程度处于高成熟—过成熟阶段;煤岩孔渗较差,孔隙度介于3.46%~8.46%,渗透率大多低于0.01×10^(-3.µm^(2.;含气性好,一般大于10.0 m^(3./t;同时,煤层顶底板均为良好封隔层。结合綦煤1井、Y2.产气效果,认为渝南地区二叠系龙潭组C_(2.)煤层具备较好的煤层气勘探开发基础地质条件。

关键词：渝南地区龙潭组 C_(2.)煤层煤层气地质条件

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生态移民的环境影响研究——以广西移民迁入区为例（英文）

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Journal of Zhejiang university-Science A(Applied Physics & Engineering) 2018年第3期19卷 240-254页

作者： ye-cui HU Wei ZHOU tao YUAN school of Land Science and Technology China University of Geosciences Key Lab of Land Consolidation and Rehabilitation Ministry of Land and Resources

目的:生态移民在改善迁出区生态环境的同时,也改变了迁入区资源环境配置格局。客观评价大量生态移民涌入给迁入区造成的生态系统压力,对生态移民政策的可持续推进及新形式下解决脱贫和生态环境保护问题有重要意义。创新点:从微观农户尺... 详细信息

目的:生态移民在改善迁出区生态环境的同时,也改变了迁入区资源环境配置格局。客观评价大量生态移民涌入给迁入区造成的生态系统压力,对生态移民政策的可持续推进及新形式下解决脱贫和生态环境保护问题有重要意义。创新点:从微观农户尺度,采用生产性生态足迹评价移民迁入区生态移民工程的生态环境影响。方法:1.基于参与式农户调查方法,获取移民迁入区移民和当地驻民的生态足迹账户、土地利用及农户家庭等基本信息;2.采用生产性生态足迹评价移民迁入区生态移民工程的生态环境影响;3.构建"STIRPAT"模型,分析移民迁入区生态环境变化的影响因素。结论:1.大规模移民的迁入对移民安置区的生态环境造成持续压力;2.人口规模扩大、荒草地开垦以及消费需求增长是造成移民迁入区生态环境压力的主要原因;3.合理测算移民迁入区人口承载力、促进农户生计转型和增加农户生计多样化可以有效缓解生态移民对生态环境的巨大压力。

关键词：生态移民生态足迹移民迁入区广西