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简介:ABSTRACT AGISisproposedasatoolforthemanagingplanfortheAntarcticspeciallymanagedarea(ASMA)inAdmiraltyBay.TheASMAcomprisestheareaconsideredtobewithintheglacialdrainagebasinofthebay.Furthermore,itincludespartofSSSINo.8adjacenttotheareabutoutsideoftheglacialdrainagebasin.Threestationsandsixrefugesarelocatedinthearea.UsingaSPOTsatelliteimagemap,thelimitsoftheASMAaremarkedanditsareaisre_calculated.Itconsistsof362km2,including186km2islandicefieldandsmallcirqueglaciersand32km2ice_freefield.Therestcompriseswaterofthebayandasmalladjacentarea(8km2)oftheBransfieldStrait.TheASMA_GISwillconsistsof12datalayersrangingfromthephysiographicsettingstothebiologicalandadministrativefeatures.AlldatawillbeimplementedintoArc/InfoGISaccordingtothecartographicguidelinesoftheSCARWG_GGI.First,fiveplansofinformationwillberealisedusingatopographicdatabasecompiledfromvarioussourcesanddatafromtherevisedbathymetricchartpublishedbytheBrazilianNavyHydrographicSurveyandalsoincluding:1)LimitsoftheASMAandprotectedareas;2)Glaciologicalfeatures(e.g.drainagebasinlimits)and3)Humanpresence(e.g.stationsandhistoricalsites).ThesebasicGISlayerswillbeoperationalinearly2001.Then,additionaldataontheremaininglayers(e.g.hydrology,geologyandgeomorphology)willbeincludedfrompublishedsources.TheASMA_GISwillformanimportantdatabaseforenvironmentalmonitoringandstudiessurveyingtemporalchangesoffeaturessuchasglacierfrontpositionsorbirdbreadingsites.
简介:有为在农业分水岭的环境恢复的长期的植被盖子的河边的缓冲区的地理设计需要估计多少农田位于一个担心的分水岭的缓冲区。传统地,这个评价被地调查并且用手的印射做,它是为一个大区域的一个费时间、昂贵的过程。在这份报纸,遥感(RS)和地理信息系统(GIS)作为划算的技术被用来为识别农业河边的缓冲区恢复的批评地点开发一条基于集水的途径。方法与11集水通过分水岭的案例研究被解释,结果仅仅显示出那四集水以为河边的缓冲区恢复的更高的优先级是合格的。这研究在集水以内越过一个分水岭并且到可变缓冲情形的地理图案在基于集水的河边的缓冲区有方法学的贡献到对耕作紧张的空间评价。前者使基于集水的管理策略可能,并且后者提供其他的恢复情形遇见不同管理目的,哪个在真实世界上有直接实现到河边的缓冲区的环境恢复。因此,这研究加亮RS和GIS应用程序的大潜力到在农业分水岭计划和河边的缓冲区恢复的管理。