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以现势性遥感数据制作的航摄正射影像图为工作底图,并以土地详查、土地变更调查相关图件、数据资料为依据,采用国家统一的土地分类系统,对阳城县辖区的土地利用现状进行了一次全面的野外实地调查,查清了阳城县当前土地利用的类型、面积、分布状况和土地权属状况,全面更新了基础图件。在此基础上,建设了土地利用数据库,实现了实地、图件、数据的一致性。对原土地详查资料及土地变更调查资料进行了分类整理,分析了其现势性和可利用程度。 相似文献
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随着经济建设的发展,原有的土地利用变更手段比较落后,精度难以保证,基础资料已经无法做到图、数、实地相一致,实践证明,利用SPOT-5高分辨率遥感影像进行土地利用现状更新调查是一种行之有效的手段。本文主要应用大同市新荣区的遥感影像,建立起了土地利用现状图的解译标志,为土地利用数据库的建立作好准备。并利用SPOT-5的2.5m全色数据和l0m多光谱遥感影像的融合数据,集合外业、内业土地更新现状调查的数据,采用了监督分类及目视解译的方法,完成了土地更新调查的基本图件,充分显示了遥感技术在土地利用详查中所发挥的作用。应用遥感技术则可以快速获得土地利用和土地覆盖的动态变化信息。 相似文献
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一、农村村庄地籍管理的现状1．管理村庄地籍主要是应用土地详查结束时形成的成果—《土地利用现状图》 《土地利用现状图》的比例尺一般是1：100120的,个别有1：25000、1：50000的,村庄的图斑在图上只是几平方厘米,并且对村庄中的道路用地、空闲地、宅基地等地类不标示出来,难以对村庄进行有效的管理。另外,虽然《土地利用现状图》每年进行更新,但是更新的目的是变更图斑地类面积,一般说来由于面积较小,多按零星地块处理,不能像地籍图那样表现出村庄内部变化的具体位置、面积。 相似文献
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2003年按照浙江省人民政府办公厅《关于开展全省土地更新调查工作的通知》(浙政办[2003]18号)精神,浙江省运用航空摄影测量、卫星遥感、地理信息系统等新技术、新方法在全省范围内开展了土地利用现状更新调查工作,全面更新土地利用基础图件,建立了标准统一的数据库。为维护土地利用数据库的现势性,保持数据库的动态更新,必须建立土地利用现状管理信息系统,采用信息化方式进行土地利用日常变更,为国土资源管理提供基础数据。 相似文献
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自1990年第一次土地详查至今已经历十多年。虽然从1996年开始了一年一度的土地变更调查。但由于社会、经济迅速发展。城市化、工业化进程加快。每年的土地利用变更调查不能准确地反映土地利用现状变化情况。影响了政府对土地利用的决策。利用先进的技术方法对土地利用现状进行实地调查。查清土地利用现状的家底。取得图件、数据、实地三相一致的成果已势在必行。2002年国土资源部批准宁波市作为全国土地利用数据库建设示范市。2003年浙江省人民政府办公厅发出了《关于开展全省土地更新调查工作的通知》（浙政办发[2003]18号），宁波市率先在全市范围内开展了土地利用更新调查及数据建库试点工作。经过几年多的努力。全市11个县（市）、区都已完成土地更新调查及数据建库工作，先后通过了国土资源部和浙江省国土资源厅的验收。全市建立起了覆盖6区和5个县（市）9680平方公里的统一土地利用更新现状数据库。并积极开展了土地利用总体规划修编、土地整理、土地围垦造地、基本农田保护等各种应用．项目成果在国土资源管理中发挥了很大的作用。本就项目技术方法的制订、组织实施、项目管理、数据更新、成果的应用等内容进行阐述。 相似文献
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MAPGIS土地利用数据库管理系统(Landuse Information system)是以MAPGIS为基础平台，开发的土地管理部门的专用系统软件，它包括MAPGIS地理信息系统平台和土地利用数据库管理系统，具有图形编辑处理、变更处理、统计分析、图件报表输出等功能。 相似文献
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第一次土地详查从1984年开始到1996年结束，大部分县级调查，距今已有十多年，很多地区的图件资料已陈旧。原来依靠传统的技术手段和方法取得的成果信息化程度很低，在很大程度上限制了成果的应用与共享。此外。日常的土地变更常常不规范、不及时。再加上经济、社会发展迅速。土地利用现状发生了很大的变化，原有的土地调查数据已经不适应土地管理的现状，更不利于土地利用的监控与管理，亟须进行全面更新。因此，《国务院关于深化改革严格土地管理的决定》中明确要求：“国土资源部要会同有关部门抓紧建立和完善统一的土地分类、调查、登记和统计制度，启动新一轮土地调查。保证土地数据的准确性。”因此，全面启动第二次全国土地调查工作已成定局。 相似文献
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The ability of cell to modulate the fluidity of plasma membrane was crucial to the survival of microorganism at low temperature. Plasma membrane proteins, fatty acids and carotenoids profiles of Antarctic psychrophilc yeast Rhodotorula sp. NJ298 were investigated at -3 ℃, 0 ℃ and 8 ℃. The results showed that plasma membrane protein content was greater at -3 ℃ than that at 8 ℃, and a unique membrane polypeptide composition with an apparent molecular mass of 94.7 kDa was newly synthesized with SDS-PAGE analysis; GC analysis showed that the main changes of fatty acids were the percentage of unsaturated fatty acids (C18∶ 1 and C18∶ 2) and shorter chain saturated fatty acid (C10∶ 0) increased along with the decrease of the culture temperature from 8 ℃ to -3 ℃; HPLC analysis indicated that astaxanthin was the major functional carotenoids of the plasma membrane, percentage of which increased from 54.6±1.5% at 8 ℃ to 81.9±2.1% at -3 ℃. However the fluidity of plasma membrane which was determined by measuring fluorescence anisotropy was similar at -3 ℃, 0 ℃ and 8 ℃. Hence these changes in plasma membrane's characteristics were involved in the cellular cold-adaptation by which NJ298 could maintain normal plasma membrane fluidity at near-freezing temperature. 相似文献
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《极地研究(英文版)》2014,(4)
正1 Aims and Scope Advances in Polar Science(APS)is an international,peer-reviewed journal jointly sponsored by the Polar Research Institute of China and the Chinese Arctic and Antarctic Administration.APS is a comprehensive academic journal dedicated to presentation of multi-disciplinary achievements in Arctic and Antarctic expeditions and research.Its primary purpose 相似文献
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《中国海洋大学学报(英文版)》2014,(4)
<正>Copyright Submfnion of a roanusatpt inks:that the work described has not been published before(exoept In the form of an abstrW or as part of a published lecture,review,or thesis);that it is not under consideration for publication elsewhere that its publication has been approved by ail 相似文献
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《中国海洋大学学报(英文版)》2014,(6)
<正>The Journal of Ocean University of China(Oceanic and Coastal Sea Research)is a comprehensive academic quarterly sponsored by the Ocean University of China,published one volume per year.This journal is devoted to the publication of the theoretical and applied research results on oceanography and marine fisheries.The fieldcovered include the physical,chemical,biological,geo- 相似文献
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Massimo GRECO 《山地科学学报》2014,(6):1383-1384
<正>The 35th IAHR World Congress was held in Chengdu,China from September 8 to September 132013.The title of the conference was:"The Wise Finds Pleasure in Water:Meandering through Water Science and Engineering".During the congress,1239 papers were presented in 139sessions for oral presentations and 7 sessions for poster presentations.After the Congress,a Committee was appointed to select some of the best papers presented at the Congress for publication,after a 相似文献
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As an important component of the cryosphere,sea ice is very sensitive to the climate change.The study of the sea ice physics needs accurate sea ice thickness.This paper presents an electromagnetic-induction(EM) technique which can be used to measure the sea ice thickness distribution efficiently,and the successful application in Bothnian Bay.Based on the electromagnetic field theory and the electrical properties of sea ice and seawater,EM technique can detect the distance between the instrument and the ice/water interface accurately,than the sea ice thickness is obtained.Contrastive analysis of the apparent conductivity data obtained by EM and the value of drill-hole at same positions allows a construction of a transformable formula of the apparent conductivity to sea ice thickness.The verification of the sea ice thickness calculated by this formula indicates that EM technique is able to get reliable sea ice thickness with average relative error of only 12%.The statistic of all ice thickness profiles shows that the level ice distribution in Bothnian Bay was 0.4-0.6 m. 相似文献
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Based on the hydrographic data in austral summer during the 22nd Antarctic Expedition of China(2005/2006),some features can be found about the northern margin of Emery ice shelf as follows.The heat content in the surface layer(0-50 m) at the eastern end and the western end of the ice-shelf margin is much higher than that at the middle.The upper mixing-layer depth and the seasonal thermocline depth at the middle of the ice-shelf northern margin are much shallower than those at the both ends.However there is much less difference between the middle and the ends in the bottom layer.The remote sensing photos show that the inhomogeneity in the surface-layer water is closely related to the spatial distribution of the floes and polynia in the area. 相似文献
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Phylogenetic analysis based on 16S rDNA of 8 strains of cultivable bacteria isolated from Arctic sea-ice was studied.The results showed that strain BJ1 belonged to genus Planococcus,which was a genus of low mole percent G C gram-positive bacteria;strain BJ6 belonged to genus Burkholderia of β-proteobacteria and the rest 6 strain all belonged to γ-proteobacteria,of which strain BJ8 was a species of Pseudoalteromonas,strain BJ2-BJ5 and BJ7 were members of genus Psychrobacter.Phylogenetic analysis also indicated that bacteria of genus Psychrobacter of the isolates formed a relatively independent phylogenetic cluster in comparison with other bacteria belonged to genus Psychrobacter. 相似文献
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《极地研究(英文版)》2014,(3)
正1 Aims and Scope Advances in Polar Science(APS)is an international,peer-reviewed journal jointly sponsored by the Polar Research Institute of China and the Chinese Arctic and Antarctic Administration.APS is a comprchensive academic journal dedicated to presentation of multi-disciplinary achievements in Arctic and Antarctic expeditions and research.Its primary purpose is to publish achievements in fundamental research,applied 相似文献