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Acta Oceanologica Sinica 2013年第8期32卷 85-88页

作者： TAO Chunhui WU Guanghai DENG Xianming QIU Zhongyan han chenhua LONG Yanmei Key Laboratory of Submarine Geosciences Second Institute of Oceanography State Oceanic Administration Key Laboratory of Marine Ecosystem and Biogeochemistry Second Institute of Oceanography State Oceanic Administration State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of Oceanography State Oceanic Administration

The 26th Chinese COMRA （China Ocean Mineral Resources Research ＆ Development Association） cruise was an important cruise. The Carlsberg Ridge （CR） of the Northwest Indian Ocean and the North Atlantic Ridge （NAR）, in which less investigation has been carried out for hydrothermal activities, were investigated and studied during the first two legs of the 26th COMRA cruise. During the first leg, we found one hydrother- mal activity field located in the CR at 3.5^-3.8~ N on the Northwest Indian Ocean Ridge （NWIR）, and sampled seafloor polymetallic sulfide deposits where only abnormalities were found before. During the second leg, we found a new hydrothermal anomaly field located in the NAR at 4^-7~N. The discovery of two hydrother- real and anomaly fields filled in the gap of hydrothermal investigation and study in the corresponding re- ~ions for China.

关键词： 26th COMRA cruise Carlsberg Ridge Indian Ocean North Atlantic Ridge seafloor hydrothermal activity

Spatial distribution pattern of seafloor hydrothermal vents to the southeastern Kueishan Tao offshore Taiwan Island

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Acta Oceanologica Sinica 2014年第4期33卷 37-44页

作者： han chenhua YE Ying PAN Yiwen QIN Huawei WU Guanghai CHEN Chen-Tung Arthur The Second Institute of Oceanography State Oceanic Administration Zhejiang University hangzhou Dianzi University National Sun Yat-sen University

Investigations of the diffusion activities both within and outside the seafloor hydrothermal vents, as well as related mineral genesis, have been one of the key focuses of ocean biogeochemistry studies. Many hy- drothermal vents are distributed close to the southern Okinawa Trough on the less-than-30-m deep shallow seafloor off Kueishan Tao, northeast of Taiwan Island. Investigations of temperature, pH and Eh at four depths of hydrothermal plume were carried out near Kueishan Tao at the white （24.83°N, 121.9°E） and yellow （24.83°N, 121.96°E） vents. An 87 h of temperature time series observation-undertaken near the white vent showed that tide is the main factor affecting the background environment. Based on the observed data, 3-dimensional sliced diffusion fields were obtained and analyzed. It was concluded that the plume diffused mainly from north to south due to ebb tide. The yellow vent＇s plume could effect as far as the white vent surface. From the temperature diffusion field, the vortices of the plume were observed. The Eh negative abnormality was a better indicator to search for hydrothermal plumes and locate hydrothermal vents than high temperature and low pH abnormalities.

关键词： Taiwan Kueishan Tao epithermal hydrothermal chemical sensor pH Eh

New All-solid-state Carbonate Ion-selective Electrode with Ag2CO3-BaCO3 as Sensitive Films

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Chemical Research in Chinese Universities 2016年第4期32卷 655-660页

作者： ZHAO Yue han chenhua HUANG Yuanfeng QIN Wenli ZhanG Xiao KAN Yating YE Ying Ocean College Zhejiang University Zhoushan 316021 P. R. China Second Institute of Oceanography State Oceanic Administration Hangzhou 310012 P. R. China

A new all-solid-state carbonate ion-selective electrode was fabricated via electrochemical and ion-exchange reactions with Ag nanoparticles and Ag2CO3-BaCO3 as ion-to-electron transducer and ion-selective layer, respectively. This paper presented the detailed procedures of the construction of the electrode, the applications of the electrode in various experiments, and the corresponding chemical reaction principles involved. The fabricated electrode was characterized by means of scanning electron microscopy（SEM）, energy dispersive spectrometer（EDS）, and electrochemical analyses. The electrode exhibited stable linear responses to carbonate anions（10-5--10-1 mol/L） with average Slope of the curve being -26.56 mV per decade, and showed negligible responses to NO3, SO2-, and Sal- anions. The electrode was further used to measure the concentration of carbonate anions in boiler water. The measured concentration was lower than that determined via titration. Overall, the electrode exhibited the advantages of miniaturized size, robust construction, and compatibility with other equipment and thus could be ideally integrated into various sensor platforms to collect chemical data from industrial heat exchangers.

关键词： Ag2CO3-BaCO3 Ion-selective electrode Carbonate determination Heat exchange water

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台湾龟山岛东南部海域白色热泉特征分析

海洋学报 2014年第2期36卷 130-136页

作者：韩沉花叶瑛潘依雯秦华伟国家海洋局第二海洋研究所国家海洋局海洋生态系统与生物地球化学重点实验室浙江杭州310012 浙江大学海洋科学与工程学院浙江杭州310028 杭州电子科技大学机械工程学院浙江杭州310018

海底热液活动及其周边环境的调查研究是海洋科学领域的热点之一。海底热液喷口环境的物理化学参数,尤其是浅水型热液,会受到潮汐变化的影响。台湾龟山岛靠近冲绳海槽南端分布有多处浅水型热液喷口(<30m)。2010年5月,浙江大学、杭州电子... 详细信息

海底热液活动及其周边环境的调查研究是海洋科学领域的热点之一。海底热液喷口环境的物理化学参数,尤其是浅水型热液,会受到潮汐变化的影响。台湾龟山岛靠近冲绳海槽南端分布有多处浅水型热液喷口(<30m)。2010年5月,浙江大学、杭州电子科技大学和台湾中山大学对该海域实施了联合考察,利用电化学传感器获得了低温热液喷口(24.834 14°N,121.961 91°E)连续87h的温度和pH现场观测数据。基于Morlet复小波变换方法,分析了浅水型热液喷口的温度和pH现场观测时间序列的变化周期,并通过与当地潮汐记录数据作比较,获得了其与潮汐信号之间的潜在关系,证实了潮汐变化是海底白色热泉喷口物理化学参数现场观测最主要的影响因素。温度和pH现场观测数据经Morlet复小波变换后的小波系数分别存在规律的12.9h和12.5h变化周期,并且温度的小波系数在准半日周期尺度与潮汐高度呈负相关变化,相关系数为-0.89;pH的小波系数情况相反,相关系数为0.76。

关键词：台湾龟山岛海底热泉温度酸碱度小波分析潮汐周期性

浅谈深海多金属硫化物采矿的环境影响和保护措施

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海洋地质前沿 2023年第12期39卷 1-11页

作者：付全有武光海韩沉花高发荣自然资源部第二海洋研究所杭州310012 自然资源部海洋生态系统动力学重点实验室杭州310012 杭州电子科技大学自动化学院杭州310018

深海矿产资源开发及其环境保护问题近年来重新成为一个研究热点。深海环境极其复杂,人类对深海生物及其生态系统的了解仍十分有限,而深海采矿不可避免会对海洋生态环境造成影响,如不加强对采矿环境影响的研究并制定相关的保护措施,未来... 详细信息

深海矿产资源开发及其环境保护问题近年来重新成为一个研究热点。深海环境极其复杂,人类对深海生物及其生态系统的了解仍十分有限,而深海采矿不可避免会对海洋生态环境造成影响,如不加强对采矿环境影响的研究并制定相关的保护措施,未来的深海采矿对海洋环境的破坏将无法估量。本文从深海采矿发展由来、多金属硫化物矿区环境、深海采矿技术发展、采矿环境影响和保护措施等几方面全链条系统地梳理了前人的研究成果,提出了深海采矿环境影响评价的发展方向,从而为今后开展深海采矿环境监测与保护提供参考。

关键词：多金属硫化物深海采矿环境影响环境基线参照区生态阈值

基于多参数化学传感器的海底热液探测方法研究

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海洋学报 2012年第2期34卷 179-184页

作者：潘依雯武光海秦华伟韩沉花叶瑛浙江大学海洋科学与工程学系浙江杭州310028 国家海洋局第二海洋研究所海洋生态系统与生物地球化学重点实验室浙江杭州310012 杭州电子科技大学机械电子工程研究所浙江杭州310047

基于热液及其羽状流的化学异常提出了一种海底热液的化学式探测方法。根据自行开发的***/Ag2S和pH三种化学电极,设计了多参数化学传感器系统。通过海试证明多参数化学传感器可灵敏地检测出由热液异常引起的化学量变化,并在长达半年的多... 详细信息

基于热液及其羽状流的化学异常提出了一种海底热液的化学式探测方法。根据自行开发的***/Ag2S和pH三种化学电极,设计了多参数化学传感器系统。通过海试证明多参数化学传感器可灵敏地检测出由热液异常引起的化学量变化,并在长达半年的多次使用中表现出其稳定性好、寿命长的特点。在东太平洋中脊(EPR)赤道区域和西南印度洋中脊(SWIR)的60条测线中,获得有效测线55条,其中在29条测线上发现明显或可能的热液异常。研究表明,应用多参数化学传感器探测进行海底热液化学异常,是一种有效的方法。

关键词：热液探测化学异常化学传感器

不同植被类型对淤泥质潮滩有机碳来源和储量的影响——以茅埏岛为例

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海洋学研究 2023年第4期41卷 94-101页

作者：刘雨薇于培松郑旻辉赵政嘉张偲韩沉花自然资源部海洋生态系统动力学重点实验室自然资源部第二海洋研究所浙江杭州310012

滨海湿地具有较强的碳汇能力,不同植被类型会对沉积物中有机碳的来源和储量产生重要影响。在茅埏岛无植被、老红树林、幼红树林和互花米草等4种淤泥质潮滩各采集1根沉积物柱状样品(柱样长度均为1 m,按10 cm间隔分样),测定沉积物粒度、... 详细信息

滨海湿地具有较强的碳汇能力,不同植被类型会对沉积物中有机碳的来源和储量产生重要影响。在茅埏岛无植被、老红树林、幼红树林和互花米草等4种淤泥质潮滩各采集1根沉积物柱状样品(柱样长度均为1 m,按10 cm间隔分样),测定沉积物粒度、总有机碳(TOC)、总氮(TN)等参数,分析和讨论沉积物有机碳来源、储量及其影响因素。结果显示:1)无植被潮滩、老红树林潮滩、幼红树林潮滩和互花米草潮滩沉积物中TOC平均含量依次为0.71%±0.03%,0.76%±0.16%,0.69%±0.12%,0.83%±0.09%。在0~20 cm层,有植被潮滩TOC含量显著高于无植被潮滩;在20~100 cm层,互花米草潮滩沉积物TOC含量高于其它潮滩类型。2)茅埏岛潮滩中互花米草潮滩沉积物有机碳储量最高,达5.79 kg m^(2),其次是老红树林潮滩(5.61 kg m^(2)),幼红树林潮滩(4.95 kg m^(2))和无植被潮滩(4.84 kg m^(2))有机碳储量较低。互花米草潮滩和红树林的覆盖均在一定程度上增强了潮滩的储碳能力。3)互花米草潮滩沉积物中的有机碳主要以陆源为主,占比57.75%;本地植物贡献在老红树林潮滩沉积物中占比最大,占比32.65%;幼红树林潮滩和无植被潮滩沉积物中有机碳均以海源贡献为主,分别占比61.47%和50.45%。

关键词：淤泥质潮滩植被类型碳储量茅埏岛

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深海热液区底栖生态环境探测技术研究进展

海洋技术学报 2022年第6期41卷 66-75页

作者：陈宁特韩沉花郑旻辉周建平自然资源部第二海洋研究所浙江杭州310012 自然资源部海洋观测技术重点实验室天津300112

针对热液区生态科学研究和海底硫化物可持续开采所需的底栖生态环境探测,本文阐述了热液区的生态环境特点,以及热液区多金属硫化物开采存在的潜在环境问题。之后,归纳海底取样和光学影像调查等常用方法并指出存在调查点原有生态的破坏... 详细信息

针对热液区生态科学研究和海底硫化物可持续开采所需的底栖生态环境探测,本文阐述了热液区的生态环境特点,以及热液区多金属硫化物开采存在的潜在环境问题。之后,归纳海底取样和光学影像调查等常用方法并指出存在调查点原有生态的破坏问题。梳理国内外发展的光学类和化学类深海原位生态环境探测传感器及国内投入海洋科考的深海着陆原位探测平台。对比当前应用于海洋发声物种识别的模式识别算法,分析虾蟹类栖息地声信号的探测方法。最后,对降低取样及影像调查对环境的影响、深海生态环境原位探测传感器的性能优化和虾蟹类栖息地生境声学探测技术等进行展望。本文将为热液区底栖生态环境探测方法研究提供参考。

关键词：热液底栖生态环境原位探测声学探测

Second unmanipulated allogeneic transplantation could be used as a salvage option for patients with relapsed acute leukemia post-chemotherapy plus modified donor lymphocyte infusion

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Frontiers of Medicine 2021年第5期15卷 728-739页

作者： Tingting han Yuqian Sun Yang Liu chenhua Yan Yu Wang Lanping Xu Kaiyan Liu Xiaojun Huang Xiaohui Zhang Peking University People’s Hospital Peking University Institute of HematologyBeijing 100044China National Clinical Research Center for Hematologic Disease Beijing 100044China Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation Beijing 100044China Collaborative Innovation Center of Hematology Peking UniversityBeijing 100044China Peking-Tsinghua Center for Life Sciences Beijing 100044China

Relapse is the main problem after allogeneic hematopoietic stem cell transplantation(allo-HSCT).The outcome of a second allo-HSCT(HSCT2)for relapse post-HSCT has shown promising results in some previous ***,little is known about the efficacy of HSCT2 in patients with relapsed/refractory acute leukemia(AL)post-chemotherapy plus modified donor lymphocyte infusion(post-Chemo+m-DLI)after the first allo-HSCT(HSCT1).Therefore,we retrospectively analyzed the efficacy of HSCT2 in 28 patients with relapsed/refractory AL post-Chemo+m-DLI in our *** a median follow-up of 918(457–1732)days,26 patients(92.9%)achieved complete remission,and 2 patients exhibited persistent *** probabilities of overall survival(OS)and disease-free survival(DFS)1 year after HSCT2 were 25.0%and 21.4%,*** cumulative incidences of nonrelapse mortality on day 100 and at 1 year post-HSCT2 were 7.1%±4.9%and 25.0%±8.4%.The cumulative incidences of relapse were 50.0%±9.8%and 53.5%±9.9%at 1 and 2 years post-HSCT2,*** stratification prior to HSCT1 and percentage of blasts before HSCT2 were independent risk factors for OS post-HSCT2,and relapse within 6 months post-HSCT1 was an independent risk factor for DFS and relapse *** findings suggest that HSCT2 could be a salvage option for patients with relapsed AL post-Chemo+m-DLI.

关键词： second hematopoietic stem cell transplantation acute leukemia relapse chemotherapy modified donor lymphocyte infusion

Responses of Soil Bacterial Diversity to Fertilization are Driven by Local Environmental Context Across China

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Engineering 2022年第5期8卷 164-170页

作者： Youzhi Feng Manuel Delgado-Baquerizo Yongguan Zhu Xiaozeng han Xiaori han Xiuli Xin Wei Li Zhibing Guo Tinghui Dang chenhua Li Bo Zhu Zejiang Cai Daming Li Jiabao Zhang State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China Department of Physical Chemicaland Natural SystemsPablo de Olavide UniversitySevilla 41013Spain State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Key Laboratory of Urban Environment and Health Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China National Observation Station of the Hailun Agroecology System Key Laboratory of Mollisols AgroecologyNortheast Institute of Geography and AgroecologyChinese Academy of SciencesHarbin 130102China College of Land and Environment National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer ResourcesShenyang Agricultural UniversityShenyang 110866China Crop Research Institute Anhui Academy of Agricultural SciencesHefei 230001China Soil and Fertilizer Research Institute Anhui Academy of Agricultural SciencesHefei 230001China Institute of Soil and Water Conservation Northwest A&F UniversityChinese Academy of Science&Ministry of Water ResourcesYangling 712100China Fukang Station of Desert Ecology Key Laboratory of Oasis Ecology and Desert EnvironmentXinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China Key Laboratory of Mountain Environment Evolvement and Regulation Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu 610041China Qiyang Agroecosystem of the National Field Experimental Station Yongzhou 426199China National Engineering Laboratory for Improving the Quality of Arable Land Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081China Jiangxi Institute of Red Soil Nanchang 331717China

Soil microbial diversity is extremely vulnerable to fertilization,which is one of the main anthropogenic activities associated with global *** we know little about how and why soil microbial diversity responds to fertilization across contrasting local ecological *** knowledge is fundamental for predicting changes in soil microbial diversity in response to ongoing global *** analyzed soils from ten 20-year field fertilization(organic and/or inorganic)experiments across China and found that the national-scale responses of soil bacterial diversity to fertilization are dependent on ecological *** acidic soils from regions with high precipitation and soil fertility,inorganic fertilization can result in further acidification,resulting in negative impacts on soil bacterial *** comparison,organic fer-tilization causes a smaller disturbance to soil bacterial *** the overall role of environmental contexts in driving soil microbial diversity,a small group of bacterial taxa were found to respond to fer-tilization in a consistent way across contrasting regions throughout *** such as Nitrosospira and Nitrososphaera,which benefit from nitrogen fertilizer addition,as well as Chitinophagaceae,Bacilli,and phototrophic bacteria,which respond positively to organic fertilization,could be used as bioindicators for soil fertility in response to fertilization at the national ***,our work provides new insights into the importance of local environmental context in determining the responses of soil microbial diver-sity to fertilization,and identifies regions with acidic soils wherein soil microbial diversity is more vul-nerable to fertilization at the national scale.

关键词： Nutrient addition Anthropogenic activity Biodiversity Soil pH