首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 46 毫秒
1.
在这次会议上听取部分省、市代表的经验介绍以及现场演示,我非常高兴。地名公共服务工程2005 年下半年刚刚启动,成效已经非常显著。可以说这次会议是地名工作历史上一次非常重要的会议。具有里程碑式的意义。  相似文献   

2.
<正>这次会议的主要任务是,深入贯彻落实中央、自治区一系列重要决策部署和全国国土资源工作会议精神,总结工作,分析形势,部署2015年重点工作,进一步适应新常态,开拓新思路,落实新要求,再造新机制,努力提升国土资源服务保障能力。下面,我先讲三点意见。一、坚持改革创新,强化服务  相似文献   

3.
<正> 这次重点实验室建设座谈会是经局领导批准召开的一次非常重要的会议。这也是1995年第一批重点实验室正式挂牌以来专题召开的第二次重点实验室建设座谈会。这次会议的主要任务是:总结交流林业重点开放性实验室8年来建设工作的经验,研  相似文献   

4.
中国地理学会第五届理事会于1985年5月15日至18日在北京召开。这次会议的主要内容有:一、展望2000年的中国地理学,并讨论地理学的改革;二、表彰从事地理工作50年的老专家;三、选举常务理事,选举理事长、副理事长、秘书长和副秘书长。第五届理事会的产生是在各省(市)地理学会提名  相似文献   

5.
1999跨世纪海峡两岸地理学术研讨会1999年8月21日~27日在台北市台湾师范大学进修推广部举行,来自祖国大陆、香港、台湾和海外的华人地理学工作者240余人参加了会议。这次会议是继1998年8月香港会议之后,具有重要意义的全球华人地理学家的又一次大聚会。这次学术研讨会共收到学术论文154篇。按照会议筹备者的安排,研讨会有七大主题。分别是:(1)跨世纪地理教育、课程及教科书,论文23篇,占14.9%;(2)自然地理及人文地理的研究与进展,论文30篇,占19.5%;(3)环境变迁与资源永续利用,论…  相似文献   

6.
<正>这次会议主要任务是,认真贯彻落实党的十八届三中全会、自治区一系列重要会议决策部署以及全国国土资源工作会议精神,总结工作,分析形势,研究部署2014年工作任务进一步创新管理、深化改革、重点突破、善做善成,全力推动全区国土资源工作再上新台阶。王波副主席在会上将作重要讲话,对全区国土资源工作提出新任务、新要求,我们要认真学习领会,全面贯彻落实。下面,我先讲三点意见。  相似文献   

7.
这次全区国土资源工作会议,是自治区政府决定召开的一次重要会议。会议的主要任务是,认真贯彻中央和自治区有关重要会议精神,分析自治区国土资源工作面临的新形势,围绕自治区确定的发展战略目标,研究做好我区国土资源工作的思路和措施。下面,我讲几点意见。  相似文献   

8.
(2 0 0 4年4月12日)各位领导,同志们:这次全国林业标准化工作及示范区建设现场会,是经国家林业局领导批准召开的一次重要会议。会议的主要任务是:学习贯彻全国农业标准化工作会议精神和《林业标准化管理办法》,总结交流林业标准化工作经验,讨论修改《全国林业标准化示范县(项目)检查验收办法》,研究部署全国林业标准化工作。会议还将现场参观绵阳市北川县的林业标准化示范工程。这次会议的召开,得到了四川省林业厅、绵阳市的大力支持,在此,让我们以热烈的掌声对他们的辛勤劳动表示感谢。下面,我讲三个方面的意见,供大家讨论。 一、不断提高…  相似文献   

9.
同志们:经过全体代表的共同努力,这次全国林业人才工作会议已经圆满完成了预定的各项议程,今天就要结束了。这次会议是国家林业局认真学习贯彻党的十六大和十六届四中全会精神,深入贯彻落实中共中央、国务院《关于进一步加强人才工作的决定》、《关于加快林业发展的决定》和全国人才工作会议、全国林业工作会议精神,以科学发展观和科学人才观为指导,广泛动员和组织林业系统的干部职工进一步振奋精神,励精图治,坚定不移地走人才强林、科教兴林之路,为实现我国林业的全面协调可持续发展而召开的一次十分重要的会议。国务院对这次会议十分重视,…  相似文献   

10.
总结经验、提高认识、加快步伐推广樟子松1994年7月26日-31日,林业部三北防护林建设局在海拉尔召开三北地区樟子松(PinussylvestrisL.varmongolicaLitv.)推广工作会议。这次工作会议在樟子松的故乡呼伦贝尔盟召开很有意义...  相似文献   

11.
Estimates of the number of undiscovered deposits on a statewide basis offer a different perspective on the nation's undiscovered resources of gold, silver, copper, lead, and zinc. Mean estimates of the number of undiscovered deposits statewide were extracted from the estimates of undiscovered deposits nationwide. More than 50 undiscovered deposits are estimated to occur in Alaska, Arizona, Nevada, and Wisconsin. Estimating the number of undiscovered deposits statewide serves as a measure of a state's total remaining mineral resources in known conventional deposit types.  相似文献   

12.
在本届南极地球科学讨论会(1987年8月24—28日)期间及会后,南极研究科学委员会(SCAR)分别举行了南极地质制图学、火山岩地质及岩石学、南方高纬度新生代古环境演化、南极岩石圈结构与演化四个专家组正式会议.由于时间冲突,笔者未能参加古环境会议.制图会议对讨论会上展示并向SCAR提交的图件逐一审议.其中地质图均为小范围大比例尺图,如巴西提交的乔治王岛菲尔德斯半岛地形地质图(1∶1.5万);地球物理方面以航磁图为多;最引人注目的是大面积遥感图,利用卫(航)片经数据处理清晰地反映出地质构造或冰盖结构特征.会议着重讨论了今后几年计划实现的16幅图件(地质6、地球物理6、遥感3、水文1),其中主要有“南极地质全图”(1∶1千万,Tingey主编,“斯科舍弧构造图”(1∶3百万,J.W.Thomson主编),“罗斯海、威得尔海构造及地震剖面图”(比例尺未定,K.Hinz主编),“南极半岛地区地震剖面及地质图”(比例尺未定,C.O.Berbert主编)等.当讨论新遥感图件协调问题时,几家大公司代表就“LANDSAT”、“SPOT”、“AVHRR”等卫星及数据处理性能优劣争论激烈,并都希望由本公司承担这一任务.  相似文献   

13.
14.
15.
本届讨论会于8月24—28日在英国剑桥鲁宾逊学院举行,共有23个国家196名代表参加,其中美(54人)、英(51人)、西德(17人)、南非(8人)、意大利(8人)、澳大利亚(8人)、新西兰(8人)、日本(6人)等国代表人数较多.除正式代表以外,尚有许多自由听众(如英国南极局研究生、外国石油公司代表等).会议于24日上午开幕,英地调所长致2分钟简短祝词,会议主席(英南极局地质处主任)用M.Thomson教授作了有关说明,即开始宣读论文.  相似文献   

16.
Sediment Facies of a Low-Energy, Meso-Tidal, Fringing Reef, Singapore   总被引:1,自引:0,他引:1  
Pulau (P.) Semakau comprises a narrow, low-lying island, surrounded by a wide fringing coral reef of late-Holocene age. The modern reef flat comprises a gently sloping surface related to modern mean low water neap tide level. Six sediment facies are recognised below the line of high water of which three, adjacent to the island, are composed of terrigenous minerals and rock fragments and three are autochthonous carbonates sediments developed since local sea-level still stand (c. 6,500 years BP). The fringing reefs of P. Semakau and Singapore differ from many of the reef forms recorded from Peninsular Malaysia waters and the Gulf of Thailand. The Singapore reefs have wide, well-developed intertidal reef flats, lack lagoons and reef crests, and have a very steep reef slope. In contrast to most other fringing reefs of the region, the Singapore reefs have developed in a low wave energy, meso-tidal environment lacking strong environmental gradients.  相似文献   

17.
18.
Estimates of the number of undiscovered deposits offer a unique perspective on the nation's undiscovered mineral resources. As part of the 1998 assessment of undiscovered deposits of gold, silver, copper, lead, and zinc, estimates of the number of deposits were made for 305 of the 447 permissive tracts delineated in 19 assessment regions of the country. By aggregating number of undiscovered deposits by deposit type and by assessment region, a picture of the nation's undiscovered resources has emerged. For the nation as a whole, the mean estimate for the number of undiscovered deposits is 950. There is a 90% chance there are at least 747 undiscovered deposits and a 10% chance there are as many as 1,160 undiscovered deposits. For Alaska, the mean estimate for the number of undiscovered deposits is 281. There is a 90% chance there are at least 168 undiscovered deposits and a 10% chance there are as many as 402 undiscovered deposits. Assuming that the majority of deposits used to create the grade and tonnage models that formed the basis for estimating the number of undiscovered deposits are significant deposits, there remain about as many undiscovered deposits as have already been discovered. Consideration of the number of undiscovered deposits as part of national assessments carried out on a recurring basis serves as a leading indicator of the nation's total mineral resources.  相似文献   

19.
A field study to examine the statistical character of dune morphology and the correlation among dune morphology, discharge, and flow resistance was conducted in a meandering reach of Lillooet River, near Pemberton, British Columbia, Canada. The field season spanned the 1995/1996 hydrologic year with sample day discharge events ranging between 33 and 425 m3 s−1. Surveys of the bed morphology along the thalweg in two dune fields (A and B) were completed using an echo sounder with chart recorder that enabled the measurement of more than 4000 dunes. Dune height ranged between 0.08 and 0.96 m, length between 2.01 and 20.99 m, and steepness between 0.02 and 0.10. Histograms of each dune shape (height, length, steepness) sample most often displayed positive skewness and non-Gaussian distributions (Gamma, Beta, and Weibull); median sample height and length histograms displayed positive skewness; and steepness was nearly Gaussian. Histograms of all dimensionless dunes (i.e., measurement divided by average measurement of sample) were Gaussian and slightly leptokurtic. Neither the height nor length of dunes measured in this investigation were successfully predicted by the empirical models of Allen [Allen, J.R.L., 1984. Developments in Sedimentology. Sedimentary Structures: Their Character and Physical Basis, 2nd edn. Elsevier, New York, vol. 30 (A and B), 1256 pp.], Fredsøe [J. Hydraul. Div., Am. Soc. Civ. Eng. 108(HY8) (1982) 932.], or Yalin [J. Hydraul. Div., Am. Soc. Civ. Eng. 90(HY5) (1964) 105.]. Least-squares regression models for dune–height relations produced here are similar to models published by other field researchers; regression models for dune length only conform to those developed elsewhere if the discharge of the study rivers was similar. The energy gradient in dune field A varied within a smaller range than in field B, enabling dune size to become more fully equilibrated with respect to flow environment. Although the average Froude numbers were much less than critical, dunes appeared to wash out towards a plane bed as discharge increased due to a change from a bedload to suspended-load dominated sediment-transport regime. Flow resistance increased most rapidly during changes in base flow and at the beginning and end of the seasonal flood; resistance tended to be smaller in field A than B, reflecting local differences in energy gradient. Flow resistance increased until a dune steepness of 0.070 was attained and then decreased. The steepness value was considered to be coincident with kolk generation [Dyer, K.R., 1986. Coastal and Estuarine Sediment Dynamics. Wiley, NY, 342 pp.], suggesting that macroturbulent flow structures play an important role in defining the roughness of dunes on a channel bed.  相似文献   

20.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号