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重金属污染水体背景下的底质反射率光谱特征及其对离水反射率贡献影响分析

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光谱学与光谱分析 2024年第1期44卷 111-117页

作者：梁业恒邓孺孺梁钰婕刘永明吴仪袁宇恒艾先俊中山大学地理科学与规划学院广东厂州510006 广东省水环境遥感监测工程技术研究中心广东广州510006 中国科学院南海海洋研究所热带海洋环境国家重点实验室广东广州510301 香港中文大学地理与资源管理系中国香港990775 北京师范大学地理科学学部北京100875 广州市城市规划勘测设计研究院花都分院广东广州510060

水体重金属遥感反演是水环境遥感领域中的难题,目前仍有相当多的基础性问题有待解决,而浅水区底质对离水反射率贡献规律是将来遥感反演模型精度其中一个重要影响因素,尤其在重金属污染这种特殊的背景下,揭示其贡献规律对提升水体重金属... 详细信息

水体重金属遥感反演是水环境遥感领域中的难题,目前仍有相当多的基础性问题有待解决,而浅水区底质对离水反射率贡献规律是将来遥感反演模型精度其中一个重要影响因素,尤其在重金属污染这种特殊的背景下,揭示其贡献规律对提升水体重金属遥感模型精度有重要作用,测量结果对研究重金属尾矿底泥的反射率光谱特征以及区分常见水底底质有参考意义。首先利用光谱仪测量获得广东大宝山尾矿底质反射率,发现其在波长755、 1 2.0、 1 62.和2.2.0 nm存在反射峰,有明显光谱特征,并与河床常见的粗沙、淤泥和石头三类底质反射率进行了对比分析,结果表明:一方面,粗沙和淤泥反射率呈一缓慢上升的曲线,与存在多个特征反射峰的矿区底泥有明显区别;另一方面,石头反射率则在波长范围550~650 nm出现一个宽而扁平的反射峰后随即在波长675 nm处出现波谷然后增大至波长750 nm后趋于平缓,其特征波长与矿区底泥均不一样。上述特征波长可作为重金属污染背景下底泥光谱的重要区分波段。测量水深为1 cm、 10 cm和深水区的离水反射率,结合水质遥感模型计算出1 cm水深情况下底质反射光、水体散射光,并将其对离水反射率贡献进行讨论。离水反射率测量结果表明,底质对浅水区影响极大,随着水深变浅,离水反射率总体不断被抬升。而水底反射光和水体散射光对离水反射率贡献规律则以波长515 nm为分界线,向短波方向以水体散射光贡献为主,向长波方向则以水底反射光为主,贡献量由底质反射能力和水体散射能力共同决定。对考虑了底质反射光后的遥感模型精度进行评价,模型计算得到波长范围350~950 nm内的离水反射率与野外测量值对比结果,二者具有显著的线性相关(R^(2.=0.964 2.,相对误差在波长范围560~830 nm低于10%,甚者可低于5%,模型总体模拟精度较好,远比在不考虑底质影响时精度高,模型满足将来水中重金属遥感反演要求。研究结果对今后水体重金属遥感反演时处理底质影响提供了重要的参考数据和理论依据,有助推动该领域进一步发展。

关键词：水体重金属遥感重金属矿区底质反射率光谱特征分析模型精度评价

Toward the generation of pure coral genomes with experimental and bioinformatic improvements

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The Innovation 2024年第4期5卷 30-32页

作者： Yisi Hu Zhiwei Zhang Shuyan sun Youfang sun Hui Huang Wenliang Zhou Fuwen Wei Center for Evolution and Conservation Biology Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou)Guangzhou 511458China Jiangxi Provincial Key Laboratory of Conservation Biology College of ForestryJiangxi Agricultural UniversityNanchang 330029China Key Laboratory of Animal Ecology and Conservation Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China Key Laboratory of Tropical Marine Bio-resources and Ecology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China

Stony corals,the primary architects of coral reef ecosystems,are largely underrepresented in omics studies despite their *** presence of endosymbiotic Symbiodiniaceae algae complicates the extraction of pure coral DNA,posing a challenge for genomic ***,we devised a comprehensive methodological framework that incorporates various experimental treatments to achieve 99%purity in coral DNA extraction and a robust bioinformatics pipeline to guarantee the assembly of high-quality,contamination-free coral *** of our framework using Acropora millepora samples demonstrated its efficacy and superiority in obtaining high-quality pure coral genomes using easily accessible adult *** integrated framework serves as a critical foundation for largescale genome-enabled research on stony corals,providing insight into coral evolution and conservation.

关键词： coral guarantee purity

Molecular cloning and expression analysis of a Mpp6 gene from black tiger shrimp（Penaeus monodon）

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Molecular cloning and expression analysis of a Mpp6 gene fro...

Morphometric analysis of penaeus monodon from four geographical population

2.11年中国水产学会学术年会

作者： MiaoMiao sun,LiHua Qiu,ShiGui Jiang,FaLin Zhou,CaiYan Zhu,LiShi Yang,TianFeng Su,JianHua Huang (1.south{2. sea Fisheries Research institute,CAFS,chinese academy of Fishery sciences.guangzhou Guangdong 510300,china 2.College of Aqua-life Science and Technology,Shanghai Ocean University,Shanghai 2.1306,china)

＜正＞In present study,a M-phase phosphoprotein 6（Mpp6） gene was obtained from the ovary and neurosecretory organ in eyestalk cDNA library of black tiger shrimp（Penaeus monodon）.By PCR testing,comparisons of nucleotides showed 95%homologies between the PCR product and the partial *** full length black tiger shrimp Mpp6（PmMpp6） cDNA have obtained,homology analysis of the deduced amino acid sequence of the PmMpp6 with other known Mpp6 sequences by MatGAT software revealed that the PmMpp6 was high homology with other invertebrates.A conserved signature sequence of the Mpp6 family was found in the PmMpp6 deduced amino acid *** of the tissue expression pattern of the PmMpp6 showed that the PmMpp6 mRNA was expressed in all tissues tested,with highest levels in lymphoid tissue and ***,the Mpp6 expression was found to be different in six stages of ovarian development.

关键词： Molecular cloing Mpp6 mRNA expression Penaeus monodon

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Morphometric analysis of penaeus monodon from four geographi...

The influence of silica on reaction rates and molecular hydrogen(H_(2.)generation during olivine hydrothermal alteration

2.11年中国水产学会学术年会

作者： MiaoMiao sun,JianHua Huang,ShiGui Jiang,QiBin Yang,FaLin Zhou,CaiYan Zhu,LiShi Yang,TianFeng Su (1.south{2. sea Fisheries Research institute,CAFS,chinese academy of Fishery sciences.guangzhou Guangdong 510300,china 2.College of Aqua-life Science and Technology,Shanghai Ocean University,Shanghai 2.1306,china

＜正＞A total of 470 specimens of Penaeus monodon from 4geographical populations were investigated by using 8 *** analysis were applied to the date,and comparative study of morphometric differences was *** analysis revealed obvious morphometric differences in both males and females from four geographical *** component analyses indicated that the first 3 components of the females and the first 2.components of the males accounted for 75.17 and 71.84%of the total variability of morphological,*** discriminant function analysis,the overall assignment of individuals into their original groups of females and males were 78.95 and 84.37%,*** females,the proportion of individuals correctly classified into their original groups was 76.0,92.8,92.6and 54.5%for populationl,2.*** it was 97.2.68.1,100and72.2.for males,*** females and males,cluster analysis showed that the four populations could be divided into two main clusters in morphological *** analysis also indicated that morphological variation of pop.3 was greater,while pop.2.is strikingly similar to pop.4 in morphology.

关键词： Penaeus monodon morphometric variation multivariated analysis

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Science china Earth sciences 2024年第1期67卷 222-233页

作者： Ruifang HUANG Weidong sun Xing DING yusheng ZHAO Yibing LI Xiuqi SHANG CAS Key Laboratory of Ocean and Marginal sea Geology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China SUSTech academy for Advanced Interdisciplinary Studies Southern University of Science and TechnologyShenzhen 518055China Center of Deep sea Research Institute of OceanologyChinese Academy of SciencesQingdao 266071China State Key Laboratory of Isotope Geochemistry Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China Institue of Geology Chinese Academy of Geological SciencesBeijing 100037China

Hydrothermal alteration of olivine greatly influences geodynamics and the recycling of volatiles(such as water and carbon)in subduction *** is an important component of geological fluids,and its influence on the hydrothermal alteration of olivine remains poorly *** this study,we performed experiments at 300–515℃ and 3.0 kbar(1 bar=10^(5)Pa)by reacting well homogenized mixtures of olivine and silica powders with saline solutions(0.5 mol L^(−1)NaCl).Silica greatly influences the reaction pathways,reaction rates,and molecular hydrogen(H_(2.)formation during olivine hydrothermal *** experiments at 300℃ and 3.0 kbar with mixtures of olivine and 10 wt%silica,olivine was replaced by serpentine and *** proportions of serpentine and talc were determined according to standard curves based on infrared spectroscopy *** 6.5%serpentine and 12.talc were produced after an experimental duration of 7 days,which had no change after a longer period(14 days).Compared to the kinetics in silica-free systems,the rates of olivine hydrothermal alteration in experiments with 10 wt%silica are much *** overall reaction is:4.5Forsterite+5.5SiO_(2.,aq+4H_(2.O=Serpentine+*** the addition of more silica(2. wt%and 40 wt%),olivine was transformed into *** rates of reaction were much faster,e.g.,for experiments with olivine and 2. wt%silica,43%of talc was produced after 14 days,which increased to 77%for experiments with 40 wt%silica over the same *** overall reaction is:3Forsterite+5SiO_(2.,aq+2._(2.O=*** experiments at 400–505℃ and 3.0 kbar,the promoting effect of silica on olivine hydrothermal alteration was also observed,which is closely associated with a decrease in Gibbs free energies of olivine hydrothermal *** 300℃ and 3.0 kbar,silica decreased H_(2.formed during olivine hydrothermal alteration by around an order of magnitude,resulting in an increase in oxygen *** on measured H_(2.,we calibrated ox

关键词： Olivine hydrothermal alteration Silica Serpentinization Hydrogen Serpentine

Cloudiness regime shift during 1946—1992.recorded by coral in the south china {2.

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Acta Oceanologica Sinica 2005年第5期24卷 27-34页

作者： GAO Rongzhen sun donghuai WANG Dongxlao YANG Xiaoyi Key Laboratory of Tropical Marine Environmental Dynamics South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou 510301 China Laboratory of Marginal sea Geology South China Sea Institute of Oceanology ＆ Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510301 China Qingdao Meteorological Administration Qingdao 266003 China

By extracting and comparing long-term trend components of coral gray value, sea surface temperature, cloudiness, and net heat flux for the period of 1946-1992. the relationships among them are addressed. There exists a prominent regime shift in the cloudiness associated with the corresponding variabilities of sea surface temperature and net heat flux occurred in the mid-1960s, which can be successfully recorded by coral gray value, a climatic proxy. Long-term cloudiness variations in the {2. china sea are completely opposite to the equatorial western Pacific in the past five decades, whereas they share a similar trend to that over Asian monsoon prevailing waters. The fact that the coral gray value is highly correlated to cloudiness provides a unique perspective on utilizing this coral to study cloudiness variations in the pre-instrumental period.

关键词： coral gray value cloudiness regime shift south china {2.

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北部湾鱼类群落格局及其与环境因子的关系

水产学报 2010年第10期34卷 1579-1586页

作者：王雪辉邱永松杜飞雁林昭进孙典荣黄硕琳上海海洋大学海洋科学学院中国水产科学研究院南海水产研究所厦门大学海洋与环境学院博士后流动站

根据2.07年在北部湾海域进行的4航次底拖网调查数据,对北部湾鱼类的种类组成和群落格局进行分析。该调查共采获鱼类32.种,隶属于18目101科。以冬季出现种类数最多,为2.1种;秋季和夏季次之,分别为2.7种和2.4种;春季最少,为186种。运用聚... 详细信息

根据2.07年在北部湾海域进行的4航次底拖网调查数据,对北部湾鱼类的种类组成和群落格局进行分析。该调查共采获鱼类32.种,隶属于18目101科。以冬季出现种类数最多,为2.1种;秋季和夏季次之,分别为2.7种和2.4种;春季最少,为186种。运用聚类分析和非度量多维标度(NMDS)方法分析了北部湾鱼类群落结构的空间分布,研究表明,该海域鱼类可划分为5个群落,为较为稳定的东北部沿岸群落(群落Ⅰ)、海南岛西岸群落(群落Ⅱ)、北部湾中南部群落(群落Ⅲ)、白龙尾岛附近海域群落(群落Ⅳ)和季节波动较大的琼州海峡西侧群落(群落Ⅴ)。ANOSIN检验表明,各群落间鱼类组成的差异极为显著(R=0.896～0.956,P1)。对不同季节鱼类群落格局与环境因子(水深、底层水温、底层盐度)的相关性分析表明,鱼类群落组成的变化与水深的相关性最好(春季R=0.491,夏季R=0.578,秋季R=0.594,冬季R=0.514),与温度和盐度的相关性较差。

关键词：鱼类种类组成群落格局环境因子北部湾

Anthropogenic climate change revealed by coral gray values in the south china {2.

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chinese Science Bulletin 2010年第13期55卷 1304-1310页

作者： WANG Xin WANG DongXiao GAO RongZhen sun donghuai Key Laboratory of Tropical Marine Environmental Dynamics South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou 510301 China Qingdao Meteorological Bureau Qingdao 266003 China

The authors analyze the coral growth band from a colony in the northwestern south china {2.. The coral growth band can provide comprehensive environmental information on climate. The trend from the two-century-long annual density of the coral is in a good agreement with that of the global CO2.concentration. Both trends were small prior to the end of the 19th century; after that, trends became clear, more so from the 1960s to the 1990s (the end of the coral record). The overall coral density shows a steady decrease from the late 19th century to the late 2.th century. Therefore, the trend from the annual density of the coral reveals the history of the anthropogenic climate change, which is coherent with instrumental and other proxy records. We propose a simple coral-based proxy for reconstructing the anthropogenic climate change over the past two centuries.

关键词：人为气候变化珊瑚南中国海灰度值二氧化碳浓度中国西北部作者分析环境信息

Three-dimensional properties of mesoscale cyclonic warm-core and anticyclonic cold-core eddies in the south china {2.

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Acta Oceanologica Sinica 2021年第10期40卷 17-29页

作者： Wenjin sun yu liu Gengxin Chen Wei {2. Xiayan Lin yuping Guan Changming Dong School of Marine sciences Nanjing University of Information Science and TechnologyNanjing 210044China southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519080China Marine Science and Technology College Zhejiang Ocean UniversityZhoushan 316022China State Key Laboratory of Tropical Oceanography South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China College of Ocean Science and Engineering Shandong University of Science and TechnologyQingdao 266590China College of Earth and Planetary sciences University of Chinese Academy of SciencesBeijing 100049China

In general,a mesoscale cyclonic(anticyclonic)eddy has a colder(warmer)core,and it is considered as a cold(warm)***,recently research found that there are a number of"abnormal"mesoscale cyclonic(anticyclonic)eddies associated with warm(cold)cores in the south{2. sea(SCS).These"abnormal"eddies pose a challenge to previous works on eddy detection,characteristic analysis,eddy-induced heat and salt transports,and even on mesoscale eddy *** on a 9-year(2.00–2.08)numerical modelling data,the cyclonic warm-core eddies(CWEs)and anticyclonic cold-core eddies(ACEs)in the SCS are *** study found that the highest incidence area of the"abnormal"eddies is the northwest of Luzon *** terms of the eddy snapshot counting method,862. CWEs and 9879 ACEs are detected,accounting for 14.6%and 15.8%of the total eddy number,*** size of the"abnormal"eddies is usually smaller than that of the"normal"eddies,with the radius only around 50 *** the generation time aspect,they usually appear within the 0.1–0.3 interval in the normalized eddy *** survival time of CWEs(ACEs)occupies 16.3%(17.1%)of the total eddy *** on two case studies,the intrusion of Kuroshio warm water is considered as a key mechanism for the generation of these"abnormal"eddies near the northeastern SCS.

关键词： mesoscale eddy cyclonic warm-core eddy anticyclonic cold-core eddy Kuroshio intrusion south china {2. abnormal mesoscale eddy