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61.
Based on the comprehensive collection of the field observed salinity of the Bohai Sea (BHS) and the northern Huanghai Sea (NHS) from the 1950s to the present,the patterns of 10-years-averaged salinity at the different layers in the recent five decades (the 1950s,the 1960s,the 1970s,the 1980s and the 1990s) are obtained by the spatial-temporal interpolation technique with the scrupulous data quality control in this study.Then,by combining the spatial-temporal interpolation technique with successive correction method,the annual distributions of salinity both in the BHS and in the NHS are obtained as well.The data analyses indicate that the overall salinity in the BHS and the NHS increases from the 1960s till the present,with the increase of annual mean salinity of 0.04 psu from the 1950s,and the maximum increase rate of salinity is about 0.14 psu/a in the Bohai Bay.The high salinity tongue extended significantly from the NHS into the BHS.The intensified eastern wind field is related to the western intrusion of the NHS warm current,which probably leads to the moving forward of the high salinity water mass into the BHS.However,it is rather different from the salinity distribution characteristics between the 1950s and the 1960s.The extensive precipitation in the 1960s could lead to an increase in the discharge of the Huanghe River,which might result in the decrease of salinity in the BHS.But the salinity isoline of 32 in the NHS still extended significantly into the BHS in the 1960s.Since the 1980s,the patterns of salinity distribution have changed thoroughly.The salinity in the central area of the BHS was low,while the salinity in the Bohai Bay and the Liaodong Bay was higher than the other regions with its horizontal salinity gradient decreasing in the 1980s.The Empirical Orthogonal Function Analysis (EOF) is also conducted to study the interannual salinity variability of the BHS and the NHS.The correlation coefficient between the time coefficient series of the main mode and the Huanghe River discharge can reach -64.57%.It can be concluded that salinity variation of the BHS and the NHS has strong negative correlation with the Huanghe River discharge. 相似文献
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PANG Jungang LI Wenhou XIAO Li. School of Petroleum Resources Xi'an Shiyou University Xi'an China. Geological Department Northwest University Xi'an China. State Key Laboratory of Continental Dynamics China. Geological Research Institute of Shengli Oilfield Co. Ltd. SINOPEC Dongying Sh ong China 《东北亚地学研究》2009,(4):183-188
Lacustrine turbidite of Chang-7 Member in the studied area consists of sihstone and fine sandstone with respect to grain size, which is feldspathic lithie sandstone, syrosem arkose and arkose with respect to mineral constitution affected by provenance. There are such apparent signatures as lithology, sedimentary structure, sedimentary sequence and well logs, to recognize turbidite. During the paleogeographic evolution of Chang-7 Member, lake basin and deep lake are both at their maximum extent during Chang-73 stage, resulting in the deposition of Zhangjiatan shale with widespread extent and of turbidite with fragmental-like. Deep lake line is gradually moving toward lake center and turbidite sand bodies are gradually turning better with better lateral continuity, connectivity and more thickness, from stages of Chang-73, Chang-72 and Chang-7t, which can be favorable reservoir in deep-water. 相似文献
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5月24日,以国家土地督察沈阳局副专员赵育民为组长的调研组一行5人,到五大连池市开展以“落实共同责任,构建保障科学发展新机制”为主题的凋研活动。
五大连池市政府召开会议,向目家土地督察沈阳局调研组的领导做了关于国土资源管理有关情况的专题汇报,介绍了五大连池市的基本情况和耕地保护目标责任制落实、基本农田保护、耕地占补平衡、土地利用总体规划实施、土地违法案件查处等情况。 相似文献
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2008年是广西实施土地开发整理工作10周年。10年来,广西已连续8年实现耕地占补平衡目标,为建设富裕、文明、和谐新广西作出了新的贡献。为总结和交流土地开发整理所取得的成果和经验,《南方国土资源》杂志开设"整理在线"栏目,热诚欢迎广大读者踊跃投稿。稿件要求:主题鲜明,内容翔实,思路清晰,逻辑性强,语言流畅;体裁不限,通讯、专访、调研、经验、图片报道等均可。 相似文献
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当前,建设用地空间已成为地方经济实现再发展的制约因素之一,耕地占补平衡已成为地方建设项目用地顺利报批的瓶颈之一。通过大力推进农村建设用地整理复垦工作,是拓展建设用地空间和实现耕地占补平衡,全面实施农村建设用地与城市建设用地总量增减平衡战略的有效途径。对此,省政府和省厅高度重视,今年7月,陈敏尔常务副省长亲自带领省发改委、省财政厅、省国土资源厅、省林业厅等厅局的领导先后到衢州的柯城、 相似文献
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近年来,嵊州市委、市政府认真贯彻中央、省市有关文件精神,十分重视土地合理利用和耕地保护工作,积极开展土地整理和建设用地复垦,取得了显著成效。吕祖善省长2007年陪同赵洪祝书记在绍兴调研作风建设年活动情况时指出:“去年嵊州通过土地整理,增加了2000多亩用地,这个做法很好。”,这是对该市土地整理工作的高度肯定。该市的宅基地整治工作也先后多次在全国、全省会议上作经验介绍, 相似文献