东海中南部外海虾类组成特征分析

依据2006年5月(春)、8月(夏)、11月(秋)和2007年2月(冬)在东海中南部外海(26°00′~28°30′N,126°00′E以西)海域虾类资源调查资料,对该海域虾类的种类组成季节变化和空间格局特征作了分析。结果表明:东海中南部外海虾类季节间相似性指数较低,各季节贡献率较大的有长角赤虾、戴氏赤虾、东海红虾和假长缝拟对虾等种类。东海中南部外海虾类种类组成可分为A、B两个组群,A组群主要分布在126°00′E以西100 m等深线附近海域,主要以戴氏赤虾、长角赤虾、假长缝拟对虾、高脊管鞭虾和东海红虾为主;B组群主要分布在126°00′E以东100 m等深线附近海域,主要以脊单肢虾、日本异指虾和九齿扇虾为主。两个群聚类型的空间分布没有明显的群聚边界,但密集区有所不同。     

准南煤田侏罗系地层层序与聚煤特征研究

本文在收集研究以往地质勘查资料的基础上,运用层序地层理论和现代沉积学理论,研究了准南煤田侏罗系地层层序,总结出了不同层序体系域下聚煤特征和规律,该研究可帮助我们丰富准南侏罗系层序地层理论,对掌握该区煤层厚度和煤层气储层厚度和分布具有现实意义。     

华东区高校龙狮运动开展现状的调查分析

运用文献资料法、问卷调查法、专家访谈法、逻辑分析法对华东区部分高校的龙狮运动开展现状进行调查分析,并提出相应的发展对策,为高校龙狮运动的进一步开展提供理论依据。     

宁东煤田-上海庙煤田区域构造初探

宁东煤田北部与其相邻的上海庙煤田为同一含煤沉积体系,其区域构造也具有连续性,随着上海庙煤田的勘查程度的逐步提高,查清宁东煤田-上海庙煤田的区域构造,对进一步勘查和煤矿开采都具有很好的指导意义,本文对此进行了初步探讨。     

当代中国电影“父亲权威”与“东方人伦”的颠覆与重建

中国当代电影从“弑父’、“弃父”再到“认父”,“父子”冲突此起彼伏。2005年,众多中国电影导演不谋而合,以真诚的平民情感,在宏大的叙事和平静体悟中回归“东方人伦”,重建“父亲权威”。追求人性,坚守本土,对社会家庭关系变动调整的殷切注视,对现实传统文化迁移流失的关怀认同．使中国当代电影具有一种强大的艺术力量。     

东德体育发展考

民主德国在二战后,迅速靠计划手段将竞技水平发展到一个较高的水平．在其体育发展过程中,重视学校体育对人全面发展的培养,竞技体育重视优秀选手的培养,包括通过学校进行培养,在大众体育的参与上,政府和社会团体共同发挥作用．但由于过分重视竞技的政治意义,执行僵化的体育体制,导致体育领域出现许多的问题,最后走向崩溃,而这些为我国体育发展提供了经验与教训．     

东亚金融合作的影响因素及推进步骤

东亚地区经济发展迅速,成为全球最具有活力的地区。该地区的金融合作也不断得到加强,并取得了不少成果。但金融合作仍然面临一系列的挑战,直接影响东亚地区的金融合作进程,主要是:各国政治意愿;大国的推动;金融合作制度化框架的建立;经济一体化的进展;中国在东亚金融合作中的作用。     

The spring soil moisture and the summer rainfall in eastern China

The relation between the soil moisture in spring and the rainfall in summer in eastern China is investi- gated. Results show that the summer rainfall in eastern China is closely related to the spring soil moisture in the area from North China to the lower reaches of Yangtze River (NCYR). When spring soil moisture anomalies over NCYR are positive, the summer precipitation exhibits positive anomalies in Northeast China and the lower reaches of Yangtze River, and negative anomalies in southern China and North China. The higher soil moisture over NCYR cools land surface and reduces the land-sea tem- perature gradient, which weakens East Asian summer monsoon. The western Pacific Subtropical High (WPSH) is located to the south and shifts westward, resulting in more rainfall in the lower reaches of Yangtze River and less in southern China and North China.     

Preservation of black carbon in the shelf sediments of the East China Sea

Concentrations and carbon isotopic(14C,13C) compositions of black carbon(BC) were measured for three sediment cores collected from the Changjiang River estuary and the shelf of the East China Sea. BC concentrations ranged from 0.02 to 0.14 mg/g(dry weight) ,and accounted for 5% to 26% of the sedimentary total organic carbon(TOC) pool. Among the three sediment cores collected at each site,sediment from the Changjiang River estuary had relatively high BC contents compared with the sedi-ments from the East China Sea shelf,suggesting that the Changjiang River discharge played an im-portant role in the delivery of BC to the coastal region. Radiocarbon measurements indicate that the ages of BC are in the range of 6910 to 12250 years old B.P.(before present) ,that is in general,3700 to 9000 years older than the 14C ages of TOC in the sediments. These variable radiocarbon ages suggest that the BC preserved in the sediments was derived from the products of both biomass fire and fossil fuel combustion,as well as from ancient rock weathering. Based on an isotopic mass balance model,we calculated that fossil fuel combustion contributed most(60%―80%) of the BC preserved in these sediments and varied with depth and locations. The deposition and burial of this "slow-cycling" BC in the sediments of the East China Sea shelf represent a significant pool of carbon sink and could greatly influence carbon cycling in the region.     

用营养动态模式估算东海区大陆架渔场渔业资源蕴藏量

引用在东海区渔场进行的"海洋生物资源补充调查和资源评价"获得的初级生产力调查结果,综合已有的研究数据,采用PARSONS和CUSHING营养动态模式,对东海区渔场的渔业资源蕴藏量进行了估算。结果表明:1996～2005年东海区大陆架渔场渔业资源平均营养级为3.531级,近10年渔业资源年平均蕴藏量为836×104t,可捕量为418×104t左右;其中东海陆架渔场平均资源量为591×104t,可捕量296×104t;黄海南部平均资源量为245×104t,可捕量123×104t。2002～2005年东海区大陆架渔场平均资源蕴藏量为855×104t,可捕量为428×104t左右;东海区大陆架单位面积渔业资源蕴藏量为14.59t/km2,可捕量7.5t/km2;有机碳与鱼的比例为10.32:1,在世界各渔场中均属于较高水平;东海的单位面积渔业资源蕴藏量为8.89t/km2,东海区海域单位面积渔业资源蕴藏量为10.20t/km2,可捕量分别为4.5t/km2和5.1t/km2,高于黄渤海区和南海,略低于福建海区。目前东海区大陆架渔场的年渔获量已达750×104t左右,远远超过估算的420×104t左右年可捕量水平,使渔业资源始终处于过度捕捞状态。要使渔业资源恢复到良好状态,至少要减少目前40%的渔获量。