中国近海牡蛎超科的新纪录     

徐凤山  黄修明 《海洋科学集刊》1993,(34):175-179

中国近海牡蛎的研究始于1845年, Hanley(1845)描述了产于中国近海的新种 Ostrea chemnitzi sp.nov.。我国的张玺教投也在30年代开始进行研究,1956年报道了13种牡蛎,在这之前国内、外学者已先后报道了24种和1亚种(张玺等,1956)其中有很多种鉴定错误,或是同物异名。近年来通过海洋底栖生物调查和附着生物的研究,作者又发现了4种牡蛎，它们是:新硬牡蛎 Neopycnodonte cochlear (Poli),侏儒牡蛎 Nanostrea erigua Harry,褶牡蛎 Alectryonella plicatula ( Gmelin) 和日本巨牡蛎 Crassostrea nippona (Seki),在中国近海都是首次记录。  相似文献   

长江口水域双带蛤科一新种     

徐凤山 《海洋与湖沼》1996,27(2):200-202

于１９８５－１９８６年在长江口的底栖生物取样中，采到大量双壳类软体动物标本。鉴定表明，其中一新种，被定名为中华团结蛤Ａｂｒａ ｓｉｍｉｃａ ｓｐ．ｎｏｖ。，属樱蛤超科中的双带科（Ｓｅｍｅｌｉｄａｅ）。模式标本保存于中国科学院海洋研究所。  相似文献   

长江口区枯、丰水期后底栖动物分布特点   总被引：2，自引：0，他引：2  

孙道元  徐凤山  崔玉珩  孙宾  王洪发 《海洋科学集刊》1992,(33):217-236

近几年来,对长江口底栖生物曾进行多次调查研究:1980-1981年进行了“中美海洋沉积作用联合研究”( Boesch等,1986;孙道元、董永庭,1986; Rhoads et al.，1985;Sun and Dong,1985);1982-1983年中国水产科学研究院东海水产研究所进行了“长江河口南岸污染对底栖生物的影响”的研究(戴国樑,1989):1985-1986年中国科学院海研究所进行了“长江口底栖生物及三峡工程对其影响的预测”的研究(刘瑞玉等,本集)。通过这些调查研究,基本掌握了长江口及其邻近水域底栖生物的概貌。 1988年4月和10月,作者又对长江口枯、丰水期后底栖动物的分布特点进行了调查研究。研究所用主要材料是在123°E以西,30°30′-32°00′N之间水域的35个取样站(图1)枯、丰水期后所获。海上取样每站以0.1㎡的表层采样器取样两次,通过0.5mm孔目的筛子冲洗后,样品在实验室内挑选、鉴定、称重和计数。  相似文献   

黄海、东海底栖生物的生态特点   总被引：12，自引：0，他引：12  

刘瑞玉  崔玉珩  徐凤山  唐质灿 《海洋科学集刊》1986,(27):153-174

黄海和东海，连同渤海，是面积广阔的陆缘海，绝大部分区域的深度不超过160m，超过200m的深水区范围很小，东海平均深度370m，黄海平均深度44m ，渤海只有18m。黄海、东海的海底地形、海流系统和水团结构都相当复杂。强大的高温高盐黑潮暖流水和以长江为主体的低盐冲淡水占主导地位。北部的黄海冷水则是在特殊的地理和气候条件下形成的夏季低温水团，而台湾暖流和黄海暖流对局部海域水文状况也有一定的影响。它们的存在及其相互作用决定了黄海和东海海域的底栖动物区系性质。此外，海底沉积物结构类型及其理化性质对底栖动物的组成和分布也有相当大的影响，不同种的分布式样明显地反映了粗、细、软、硬底质的分布轮廓；而有些底内动物的活动又对沉积物的物理纹层和化学特点产生一定的影响。 黄海、东海底栖动物种类很多，有的种数量很大，不少种(虾类)是具有经济价值的渔业捕捞对象，或是经济鱼虾的天然饵料，有些又可作为水团、海流的指示种，与生物资源的开发利用以及海洋生物科学的发展有密切关系。本文根据多年调查资料，系统反映中国东部近海大型底栖动物的概貌和生态特点，内容包括种类和群落组成、分布及其与水文和沉积环境的关系。  相似文献   

Impact of warming climate and cultivar change on maize phenology in the last three decades in North China Plain   总被引：2，自引：0，他引：2  

Dengpan Xiao  Yongqing Qi  Yanjun Shen  Fulu Tao  Juana P. Moiwo  Jianfeng Liu  Rede Wang  He Zhang  Fengshan Liu 《Theoretical and Applied Climatology》2016,124(3-4):653-661

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Status of Stratigraphy Research in China     

YAO Jianxin  BO Jingfang  HOU Hongfei  WANG Zejiu  MA Xiulan  LIU Fengshan  HU Guangxiao  JI Zhansheng  WU Guichun  WU Zhenjie  LI Suping  GUO Caiqing  LI Ya 《《地质学报》英文版》2016,90(4):1069-1081

Scientific research and productive practice for earth history are inseparable from the accurate stratigraphic framework and time framework. Establishing the globally unified, precise and reliable chronostratigraphic series and geological time series is the major goal of the International Commission on Stratigraphy(ICS). Under the leadership of the ICS, the countries around the world have carried out research on the Global Standard Stratotype-section and Points(GSSPs) for the boundaries of chronostratigraphic systems. In the current International Chronostratigraphic Chart(ICC), 65 GSSPs have been erected in the Phanerozoic Eonothem, and one has yet been erected in the Precambrian Eonothem. Based on the progress of research on stratigraphy especially that from its subcommissions, the ICS is constantly revising the ICC, and will publish a new International Stratigraphic Guide in 2020. After continual efforts and broad international cooperation of Chinese stratigraphers, 10 GSSPs within the Phanerozoic Eonothem have been approved and ratified to erect in China by the ICS and IUGS. To establish the standards for stratigraphic division and correlation of China, with the support from the Ministry of Science and Technology, the National Natural Science Foundation of China and the China Geological Survey, Chinese stratigraphers have carried out research on the establishment of Stages in China. A total of 102 stages have been defined in the "Regional Chronostratigraphic Chart of China(geologic time)", in which 59 stages were studied in depth. In 2014, the "Stratigraphic Chart of China" was compiled, with the essential contents as follows: the correlation between international chronostratigraphy and regional chronostratigraphy of China(geologic time), the distributive status of lithostratigraphy, the characteristics of geological ages, the biostratigraphic sequence, the magnetostratigraphy, the geological events and eustatic sea-level change during every geological stage. The "Stratigraphical Guide of China and its Explanation(2014)" was also published. Chinese stratigraphers have paid much attention to stratigraphic research in south China, northeast China, north China and northwest China and they have made great achievements in special research on stratigraphy, based on the 1:1000000, 1:250000, 1:200000 and 1:50000 regional geological survey projects. Manifold new stratigraphic units were discovered and established by the regional geological surveys, which are helpful to improve the regional chronostratigraphic series of China. On the strength of the investigation in coastal and offshore areas, the status of marine strata in China has been expounded. According to the developing situation of international stratigraphy and the characteristics of Chinese stratigraphic work, the contrast relation between regional stratigraphic units of China and GSSPs will be established in the future, which will improve the application value of GSSPs and the standard of regional stratigraphic division and correlation. In addition, the study of stratigraphy of the Precambrian, terrestrial basins and orogenic belts will be strengthened, the Stratigraphic Chart of China will be improved, the typical stratigraphic sections in China will be protected and the applied study of stratigraphy in the fields of oil and gas, solid minerals, etc. will be promoted. On the ground of these actions, stratigraphic research will continue to play a great role in the social and economic development of China.  相似文献   

A comparative study on the macrobenthic community over a half century in the Yellow Sea,China     

Junlong Zhang  Ning Xiao  Suping Zhang  Fengshan Xu  Shuqian Zhang 《Journal of Oceanography》2016,72(2):189-205

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四川杨柳坪热液型富铂族元素矿石的发现及其意义   总被引：6，自引：2，他引：6  

王登红  刘凤山等 《地质通报》2002,21(3):158-162

四川杨柳坪是中国最主要的铂族元素矿床之一，但以往控制的97％以上的储量赋存在蚀变超基性岩体中，品位普遍不高，笔者等1999年通过对杨柳坪主矿体外围热液型矿体的调查，认为其中的热液型矿石可能富含铂族元素，经过初步的分析测试，证实了这一推测，并发现热液成民岩浆作用在杨柳坪地区具有明显不同的表现形式，根据最近在鱼海子等地地调查的新发现，建议在扬子地台西缘进一步开展找热液型铂族元素矿床的工作。  相似文献   

太行山燕山造山带与中生代花岗岩有关的金属矿床成矿系列特征   总被引：6，自引：0，他引：6  

刘风山  石准立 《矿床地质》1998,17(3):193-203

在把握成矿系列“三同”基本前提和“五多”基本特征的基础上 ,把太行山—燕山造山带与中生代花岗岩有关的矿床划分为 6个成矿系列 ,并探讨了各成矿系列主要地质特征、稳定同位素特征、成矿热液性质及其物理化学条件 ,指出各成矿系列具有不同的特征 ,岩浆岩、地层、断裂构造等对成矿系列形成都有控制作用 ,成矿物质既来源于围岩 ,也来源于花岗质岩浆 ,并且在造山作用过程中 ,壳幔演化对各成矿系列有不同的贡献。  相似文献   

枣庄市十里泉电厂第三水源地地下水位年变幅灰色预测     

贺敬  靳丰山  陈素玲 《山东地质》2014,(1):45-47

该文依据往年地下水位监测数据,通过灰色系统理论的预测模型,对枣庄十里泉电厂地下水位年变幅做出预测,分析了岩溶塌陷发展趋势,为由水动力因素引起的岩溶塌陷地质灾害提供防治依据。  相似文献