简介：

简介：

简介：ThetaigaconiferousforestsoftheSiberianregionarethemaincarbonsinksintheforestecosystems.Quantitatively,thesizeofthecarbonaccumulationisdeterminedbythephotosyntheticproductivity,whichisstronglyinfluencedbyenvironmentalfactors.Asaresult,anassessmentoftherelationshipbetweenenvironmentalfactorsandphotosyntheticproductivitymakesitpossibletocalculateandevenpredictcarbonsinksinconiferousforestsattheregionallevel.However,atvariousstagesofthevegetativeperiod,theforceoftheconnectionbetweenenvironmentalconditionsandtheproductivityofphotosynthesismaychange.Inthisresearch,correlationsbetweenthephotosyntheticactivityofScotspine(PinussylvestrisL.)withtheenvironmentalconditionswerecomparedinspringandinautumn.Inspring,closepositivecorrelationofthemaximumdailynetphotosynthesiswasidentifiedwithonlyoneenvironmentalfactor.Fordifferentyears,correlationswereforsoiltemperature(rs=0.655,p=0.00315)oravailablesoilwatersupply(rs=0.892,p=0.0068).Inautumnwithindifferentyears,significantcorrelationwasshownwithtwo(temperatureofairandsoil;rs=0.789and0.896,p=0.00045and0.000006,respectively)andfourfactors:temperatureofair(rs=0.749,p=0.00129)andsoil(rs=0.84,p=0.00000),availablesoilwatersupply(rs=0.846,p=0.00013)andirradiance(rs=0.826,p=0.000001).Photosyntheticactivityhasaweakerconnectionwithchangesinenvironmentalfactorsinthespring,ascomparedtoautumn.Thisisexplainedbythemultidirectionalinfluenceofenvironmentalconditionsonphotosynthesisinthisperiodandbythenecessityofearlierphotosynthesisonset,despitetheunfavorableconditions.Thisdatamaybeusefulforpredictingtheflowofcarbonindependenceonenvironmentalfactorsinthisregioninspringandinautumn.

简介：铂组元素(PGE)的集中从Zhireken，Shakhtama和Aksug斑岩Cu瞬间存款在主要magmatic磁铁矿样品被分析了(西伯利亚，俄国)由激光，决定PGE的范围的脱离诱导地联合的血浆团spectrometry在磁铁矿并且到支票满足从二间主要岩石套房(贫瘠Pluto的套房和使矿物化的斑岩套房)的磁铁矿是否有不同PGE作文。这里介绍的结果显示磁铁矿在PGE被充实相对整个岩石。矿石相关的斑岩和贫瘠Pluto的套房的比较证明磁铁矿在两间套房展出相对类似的PGE分发模式。在Rh和Ru内容的变化被氧易逃逸在岩浆结晶化期间控制。