简介:Inthatorchardinginearly-to-midtwentiethcenturysoutheasternAustraliainvolveduseofcertainheavymetalandAscompoundsinregularpest-controlsprayprocedures,someinterestattachestothepossibilitythattheselandparcelsareunderlainbysoilswithabove-backgroundCu,PbandAslevels.InterpretationofLand-coverchangesallowedlandparcelspreviouslyoccupiedbyorchardstobeidentifiedinthe1950sthroughtime-seriesair-photos.Acomparisonofsoilanalysisresultsreferringtosoilsamplesfromcontrolsites,andfromlandparcelsformerlyoccupiedbyorchardists,showsthatcontamination(above-background)levelsofcationsinthepesticidescanbefoundinthetop6cmofformerorchardsoils.Itisclearthatdigitalspatialdatahandlingandculturally-informedairphotointerpretationhasaplaceinsoilcontaminationstudies,land-useplanning(withparticularreferencetore-development)andinadministrationofpublichealth.
简介:山西省测绘职工教育基地的前身为华北测绘职工大学,主要承担山西省测绘行业职工教育培训任务,同时也是测绘行业特有工种职业技能鉴定山西站的承建单位及太原市教委批准的社会力量办学单位。学校师资力量雄厚,教学设备先进,为广大学习者提供了理想的教学场所并获得了显著的教学效果。一、设在本基地的测绘行业特有工种职业技能鉴定山西站,是经国家劳动和社会保障部1999年批准设立的测绘行业特有工种职业技能鉴定的机构,在国家测绘局职业技能鉴定指导中心的组织指导下,负责对我省测绘从业人员技能水平进行评价和认证。鉴定等级包括初、中、高级技术等级考核和技师、高级技师资格考评。鉴定对象包括全省测绘行业所有从事测绘技术工种的在职