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Status of aquatic organisms resources and their environments in Yangtze River system(2017-2021)⋆

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Aquaculture and Fisheries 2024年第5期9卷 833-850页

作者： Haile Yang Li Shen Yongfeng He Huiwu Tian Lei Gao Jinming Wu Zhigang Mei Nian Wei Lin wang Tingbing Zhu Feifei Hu Jinling Gong Hongchun Du Xinbin Duan Huatang Deng daoqun wang Fengyue Zhu Yunfeng Li Fan Wu Huijun Ru Yan Zhang Junyi Li Junlin Yang Yuntao Zhou Dongdong Fang Yinping wang Danqing Lin Yanping Yang Peijie Li Silei Liu Jian Yang Ping Zhuang Sikai wang Tao Zhang Gang Yang Wenbo Yang Lilai Yuan Kun Cao Shuo Xu Huiyuan Liu Zhiqiang Liang Chongrui wang Hong Li Xiping Yuan Xin Yang Yilong Fu Yanping Zhang Haixin Zhang Zhiying Tao Sheng wang Xiaoping Gao Binsong Jin Kemao Li Guojie wang Shenglong Jian Yingqin Li Chenjiang Xue Chunyun Lei Shaowei Xue Yi Sun Bin Zhu Ke Shao Xingkun Hu Meihua Xiong Jun Du Bin He Tao Yan Yingying Huang Yuanchao Zou Biwen Xie Yongming wang Bin Li Fei Liu Yaoyao Zhang Fei Fan Zhijian wang Jing Huang Haoran Gu Hailong Ge Yan Dan Yan Li Shuqiao wang Chuang Zhang Lu Zhou Xue wang Sheng Zeng Yan Xiang Xugang He Jianhui Qin Chengxing Xia Jie Hou Yifu Shi Lifang Gao Zhiqiang Zhu Hongbao Shen Yun Du Xuejun Duan Jiawu Xiong Deguo Yang Shaoping Liu Zhaohui Ni Hui Zhang Kai Liu Feng Zhao Yingren Li Jianwei wang Qiwei Wei Yangtze River Fisheries Research Institute Chinese Academy of Fishery SciencesWuhan430223China Institute of Hydrobiology Chinese Academy of SciencesWuhan430072China Fishery Resource and Environment Research Center Chinese Academy of Fishery SciencesBeijing100141China Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization Ministry of Agriculture and Rural AffairsFreshwater Fisheries Research CenterChinese Academy of Fishery SciencesWuxi214081China East China Sea Fisheries Research Institute Chinese Academy of Fishery SciencesShanghai200090China Institute of Fisheries Engineering Chinese Academy of Fishery SciencesBeijing100141China Hunan Fisheries Science Institute Changsha410153China Jiangxi Fisheries Research Institute Nanchang330039China Jiujiang Academy of Fishery Sciences Jiujiang332000China School of Life Sciences Nanchang UniversityNanchang330031China Qinghai Provincial Fishery Technology Extension Center Xining810012China Yunnan Academy of Fishery Sciences Kunming650111China Institute of Hydroecology Ministry of Water Resources and Chinese Academy of SciencesWuhan430079China Fisheries Institute Sichuan Academy of Agricultural SciencesChengdu611731China School of Life Sciences Neijiang Normal UniversityNeijiang641100China School of Life Sciences Southwest UniversityChongqing400715China Chongqing Fishery Sciences Research Institute Chongqing401120China Guizhou Fisheries Research Institute Guiyang550025China College of Fisheries Huazhong Agricultural UniversityWuhan430072China Hubei Fisheries Science Research Institute Wuhan430070China Shaanxi Fisheries Research Institute Xi’an710086China Innovation Academy for Precision Measurement Science and Technology Chinese Academy of SciencesWuhan430077China Nanjing Institute of Geography and Limnology Chinese Academy of SciencesNanjing210008China Central South Inventory and Planning Institute of State Forestry and Grassland Administration Changsha410014China

The Yangtze River is the mother river of *** promote the aquatic ecosystem protection of the great river,the Project of Yangtze Fisheries Resources and Environment Investigation(2017-2021)supported by the Ministry of Agriculture and Rural Affairs,*** carried out by 24 institutes and universities that located in the Yangtze River basin surveys the status of(1)fish species composition and spatial distribution,(2)current fish abundance,(3)endangered fishes,(4)Yangtze finless porpoise,(5)aquatic eco-environments,(6)water-level fluctuation areas,(7)capture fisheries and recreational fisheries of the Yangtze River mainstream and 10 of its main tributaries,including Yalong River,Heng River,Min River(including Dadu River),Chishui River,Tuo River,Jialing River,Wu River,Han River,Dongting Lake and Poyang *** results showed that there were 443 fish species(belonging to 163 genus,37 families,and 18 orders)before 2017,but only 323 fish species(including 15 new recorded exotic species)were recorded in the project of *** them,Cyprinus carpio,Carassius auratus,Hypophthalmichthys molitrix,Pelteobagrus fulvidraco,Coilia brachygnathus,Silurus asotus,Saurogobio dabryi,Ctenopharyngodon idellus,Pelteobagrus nitidus,Hemiculter leucisculus,Siniperca chuatsi,Coreius heterodon,Culter alburnus,Parabramis pekinensis,and Aristichthys nobilis were the dominant species across the whole Yangtze River *** is estimated that there were 886 million individuals weighing 124.8 million kg,merely equivalent to 27.3%of the resources in 1950s,30.9%of the resources in 1960s,or 58.7%of the resources in *** the new list of protected fishes that recorded in the Yangtze River system,only 15 of 29 were collected in this project of *** gladius has been affirmed to be Extinct by International Union for Conservation of Nature(IUCN).The wild individuals of Tenualosa reevesii and Luciobrama macrocephalus have disappeared for many years and maybe have been extinct

关键词： Fishes Yangtze finless porpoise Resources Aquatic ecosystem Fisheries Background investigation Yangtze river system

A peak enhancement of frequency response of waveguide integrated silicon-based germanium avalanche photodetector

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Journal of Semiconductors 2024年第7期45卷 61-68页

作者： Linkai Yi daoqun Liu Wenzheng Cheng Daimo Li Guoqi Zhou Peng Zhang Bo Tang Bin Li Wenwu wang Yan Yang Zhihua Li Institute of Microelectronics Chinese Academy of SciencesBeijing 100029China School of Electronic Electrical and Communication Engineering University of Chinese Academy of SciencesBeijing 100049China

Avalanche photodetectors(APDs) featuring an avalanche multiplication region are vital for reaching high sensitivity and responsivity in optical transceivers. Waveguide-coupled Ge-on-Si separate absorption, charge, and multiplication(SACM)APDs are popular due to their straightforward fabrication process, low optical propagation loss, and high detection sensitivity in optical communications. This paper introduces a lateral SACM Ge-on-Si APD on a silicon-on-insulator(SOI) wafer, featuring a 10 μm-long, 0.5 μm-wide Ge layer at 1310 nm on a standard 8-inch silicon photonics platform. The dark current measures approximately 38.6 μA at-21 V, indicating a breakdown voltage greater than-21 V for the device. The APDs exhibit a unitgain responsivity of 0.5 A/W at-10 V. At-15 V, their responsivity reaches 2.98 and 2.91 A/W with input powers of-10 and-25 dBm, respectively. The device's 3-dB bandwidth is 15 GHz with an input power of-15 dBm and a gain is 11.68. Experimental results show a peak in impedance at high bias voltages, attributed to inductor and capacitor(LC) circuit resonance, enhancing frequency response. Furthermore, 20 Gbps eye diagrams at-21 V and-9 dBm input power reveal signal to noise ratio(SNRs) of 5.30. This lateral SACM APD, compatible with the stand complementary metal oxide semiconductor(CMOS) process,shows that utilizing the peaking effect at low optical power increases bandwidth.

关键词： photodetectors optical communications responsivity 3-dB bandwidth

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线性规划在烧结矿配料中的应用

冶金丛刊 2005年第3期 4-7页

作者：王道群徐州钢铁厂技术监督处

烧结矿配料生产要在满足高炉需求的情况下追求成本最小。本文介绍了使用电子表格线性规划模型寻找最优的配矿方案,使所得配料的所有化学成分接近给定值。

关键词：烧结矿应用线性规划模型配料生产配矿方案电子表格化学成分给定值高炉

ISO4370:2022标准简介及其示范作用

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冶金标准化与质量 2022年第6期60卷 37-40页

作者：王道群习杰尹长光新兴河北工程技术有限公司河北邯郸056300

ISO 4370:2022《给水球墨铸铁管寿命周期环境评价和循环利用》以CO_(2)作为环境评价指标,采用LCA法对给水球墨铸铁管进行了环境评价,给出了所有过程的二氧化碳排放量计算公式,给出减少环境影响的关键驱动以及循环利用的分析。本文对此... 详细信息

ISO 4370:2022《给水球墨铸铁管寿命周期环境评价和循环利用》以CO_(2)作为环境评价指标,采用LCA法对给水球墨铸铁管进行了环境评价,给出了所有过程的二氧化碳排放量计算公式,给出减少环境影响的关键驱动以及循环利用的分析。本文对此进行简介,并分析该标准对LCA在工业品中应用的示范作用。

关键词：球墨铸铁管 LCA 二氧化碳排放量

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乌东德水电站蓄水前库区江段鱼类资源研究

人民长江 2022年第10期53卷 45-51页

作者：张镀光王导群利广杰唐锡良段辛斌田辉伍北京中环格亿技术咨询有限公司北京100012 中国水产科学研究院长江水产研究所湖北武汉430223 中国三峡建工(集团)有限公司四川成都610041

为了解金沙江下游乌东德水库蓄水前其库区江段鱼类资源状况,于2016~2018年对该江段开展了鱼类资源调查,并对其鱼类种类组成、结构特征等进行了分析。调查结果表明:乌东德库区江段共计采集鱼类59种,隶属于5目12科41属,其中长江上游特有鱼... 详细信息

为了解金沙江下游乌东德水库蓄水前其库区江段鱼类资源状况,于2016~2018年对该江段开展了鱼类资源调查,并对其鱼类种类组成、结构特征等进行了分析。调查结果表明:乌东德库区江段共计采集鱼类59种,隶属于5目12科41属,其中长江上游特有鱼类17种,占采集种数的28.81%。优势种为南方鲇(Silurus meridionalis)、圆口铜鱼(Coreius guichenoti)、鲫(Carassius auratus)、张氏■(Hemiculter tchangi)、麦穗鱼(Pseudorasbora parva)和中华纹胸鮡(Glyptothorax sinenses),占渔获物比重的67.42%。库区段Margalef丰富度指数、Shannon-Weiner多样性指数和Pielou均匀度指数分别为7.28,3.31和0.81。蓄水前库区江段鱼类种类数目相比历史记录有所下降,资源状况呈现衰退趋势,但鱼类群落多样性较高,组成结构相对稳定。为科学保护金沙江下游流域鱼类生物多样性,建议采取栖息地修复、水文情势改善、资源增殖等措施,以为鱼类创造良好的生存条件,维持自然种群规模。

关键词：鱼类生态学种类组成群落结构优势种多样性乌东德水电站

长江上游珍稀特有鱼类国家级自然保护区干流段鱼类群落结构特征分析

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水产学报 2023年第2期47卷 81-100页

作者：唐成邓华堂田辉伍吴兴华唐锡良蒲艳王导群段辛斌刘绍平陈大庆中国水产科学研究院长江水产研究所华中农业大学水产学院中国长江三峡集团有限公司中国三峡建设管理有限公司

长江上游珍稀特有鱼类国家级自然保护区位于向家坝坝下江段，随着金沙江下游梯级水电站相继蓄水运行和“十年禁渔”政策的实施，保护区干流段鱼类群落可能会发生改变。为探究“十年禁渔”前保护区干流段鱼类群落结构特征，基于该江段201... 详细信息

长江上游珍稀特有鱼类国家级自然保护区位于向家坝坝下江段，随着金沙江下游梯级水电站相继蓄水运行和“十年禁渔”政策的实施，保护区干流段鱼类群落可能会发生改变。为探究“十年禁渔”前保护区干流段鱼类群落结构特征，基于该江段2017—2019年渔获物监测数据，对鱼类种类组成、生态类型、群落相似度、物种优势度、生物多样性以及群落结构稳定性等特征进行分析。结果显示，本次调查共采集到鱼类134种，隶属于7目21科83属，其中长江上游特有鱼类有27种，外来物种有12种，分别占总种类数20.15%和8.96%。鱼类群落以底层、产沉性卵、杂食性鱼类为主。等级聚类分析(Cluster)和非度量多维尺度分析(NMDS)显示，在一定的相似性水平上，保护区干流段鱼类的群落类型基本可分为3组，宜宾、泸州与合江可以聚为一组，巴南、江津分别独立成组。保护区干流优势种共有14种，其中瓦氏黄颡鱼是整个研究区域的优势种，在合江站点的优势度最高，IRI值为27.00%。Shannon-Wiener指数、Simpson指数、Margalef指数和Pielou指数变化范围分别为2.725～3.306、0.883～0.942、5.833～8.811和0.699～0.773，表明保护区干流鱼类物种丰富，群落分布均匀度较高。ABC曲线分析结果显示，江津站鱼类群落结构稳定性相对较高，其余站点鱼类群落结构均受到中度干扰。本研究补充了保护区干流鱼类群落研究的基础数据，以期为该江段鱼类资源管理与“十年禁渔”生态评估提供科学依据。

关键词：群落结构鱼类组成生态类型多样性长江上游

TUNABLE HIGH-POWER BaB_(2)O_(4) OPTICAL PARAMETRIC OSCILLATOR PUMPED AT 355nm

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Chinese Physics Letters 1990年第9期7卷 394-397页

作者： XU Zuyan DENG daoqun wang Yunping ZHENG Wanhua LIU Xiang WU Baichang CHEN Chuangtian Institute of Physics Academia SinicaBeijing 100080 Fujian Institute of the Structure of Matter Academia SinicaFuzhou 350002

We report the operation of aβ-BaB_(2)O_(4)(BBO)optical parametric oscillator(OPO)broadly tunable in the visible and the near *** efficiency of 22.7%for the signal and 34.1%for the idler corresponding to the total energy conversion efficiency of 25.9%has been *** maximum average output power and the maximum output energy reached 220m W and 22rnJ/pulse,*** changing the matching angle of the OPO,the output wavelength was continuously scanned throughout 425-2144nm.

关键词： OPO tunable oscillator

PICOSECOND NARROW-BAND SUPERLUMINESCENT OPTICAL PARAMETRIC SELF-AMPLIFICATION IN β-BaB_(2)O_(4) CRYSTAL PUMPED AT 354.7nm

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Chinese Physics Letters 1990年第11期7卷 497-499页

作者： DENG daoqun XU Zuyan wang Yunping ZHENG Wanhua LIU Xiang WU Baichang CHEN Chuangtian Institute of Physics Academia SinicaBeijing 100080 Fujian Institute of Research on the Stucture of Matter Academia SinicaFuzhou 350002

A tunable picosecond narrow band β-BaB_(2)O_(4)(BBO)superluminescent optical parametric self-amplification(OPSA)pumped by the third harmonic of an actively-passively mode-locked Nd:YAG laser has been *** output wavelength of the OPSA was tunable from 406.6nm to *** maximum energy conversion efficiency was 11%.The maximum peak power of the visible output was as high as 13MW.

关键词： Nd:YAG tunable pumped

Study on the Distribution Characteristics of Thunderstorms in Xuzhou City

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Meteorological and Environmental Research 2013年第11期4卷 32-34,43页

作者： Zhaokun wang Guangdong Sun Wuguang Yan Dongliang Wei daoqun Zhang Xuzhou Meteorological Bureau

[Objective] The study aimed to discuss the distribution characteristics of thunderstorms in Xuzhou City. [Method] Based on thunder- storm observation data during 1978 -2008 provided by Jiuli Mountain station, beginning and ending months, days, duration, frequency, hours and direction of thunderstorms in Xuzhou were analyzed. [ Result] From 1978 to 2008, there were obvious annual variations in thunderstorm days in Xuzhou City. Thunderstorm days were more in July and August compared with other months, while there were no thunderstorms in January and De- comber. Thunderstorms began earliest in February and ended latest in November, with a long span. The longest duration of thunderstorms reached 259 d, accounting for 71% of total days of a year. The maximum frequency of thunderstorms （64） appeared in 1995, and the maximum hours of thunderstorms （4 048 h） appeared in 2003. Thunderstorms occurred most frequently in the southwest, followed by SE and NW. [ Conclusion] The research could provide scientific references for the prevention and control of lightning strokes in Xuzhou in future.

关键词： Thunderstorm Distribution characteristic Xuzhou China