学科分类
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5 个结果
  • 简介:这研究在不同PBMP招募下面在忍受钾的矿物质粉末(PBMP)在K上分析蚯蚓的biotransformation。PBMP(10%~60%集体部分)和腐烂的奶牛粪的混合物是被使用为引起蚯蚓在土壤在PBMP上学习蚯蚓的释放钾的能力喂。包含20%和30%PBMP的混合导致了蚯蚓的好生长以及钾的更高的变换率。因此,矿物质粉末的最佳招募是20%和30%。奶牛粪和PBMP的混合与奶牛粪的混合和石英粉末的相应比例相比在不同联合在PBMP上分析蚯蚓的变换率。在蚯蚓与奶牛粪和PBMP的混合被提起以后(8:2和7:3)为30,d,很快可得到的K的内容和有效K是10824.3????????

  • 标签: 蚯蚓活动 速效钾 生物转化 矿粉 轴承 混合物
  • 简介:Theobjectiveofthisstudywastoinvestigatetheef-fectsofearthwormdensityontheavailabilityofnutrientsandheavymetalsinmetalcontaminatedsoils.Pb/Znminetailingsweremixedthroughlywitharedyellowpodzolicsoilattheratio(w/w)of75:25.Earthworms(Pheretimasp.)wereintroducedtothemixtureatfourdifferentdensities,zero,three,sixandnineindividualsperpotplantedwithryegrass(Loliunmultiflorum).Theresultsindicatedthatearthwormactivitysignificantlyen-hancedryegrassshootbiomass.However,asdenserearthwormpopulationwasintroduced,shootbiomasstendedtodecrease.EarthwormactivitysignificantlyincreasedsoilpHandavailabilityofN,PandKinthetailingsandsoilmixture.TherewasageneraltendencythatuptakeofZnbyryegrassincreasedafterearthworminoculation,althoughtheincreaseinextractableZnintailingsandsoilmixturewasnotsignificant.Onthecontrary,thereseemedtobealoweruptakeofPbbyryegrassunderearthworminoclation,despitethefactthathigherextractablePbconcentrationswereobserved.Thepresentprojectindicatedthattheimprovedgrowthofryegrasswasduetoimprovednutrientavailabilityandothersoilconditions,byinoculationofearthwormsatanappropriaterate.Furtherstudiesareneededtoillustratetherelationshipbe-tweenmetalavailabilityandearthwormactivityinthefield.

  • 标签: 土壤 环境保护 复垦地 金属污染
  • 简介:ApotassiumsolubilizingbacterialstraindesignatedEGT,whichistolerantofhightemperature,wasisolatedfromanearthworm’sguttoobtainabacteriumthatcanweatherpotassium-bearingrockeffectivelythroughsolid-statefermentation.Molecularphylogenyand16SrRNAgenesequenceanalysisdemonstratedthebacterialstrainwasamemberoftheStreptomycesgenus.Toassessitspotentialtoreleasepotassiumfromsilicateminerals,thisstrainwasusedtodegradepotassium-bearingrockpowderbysolid-statefermentation.Afterfermentation,theamountofwater-solubleAl,FeandKofthesubstratewithactiveinoculumwashigherthanthoseofthecontrol,whichhadautoclavedinoculum,andthoseofthefreshsubstrate.Theresultindicatedthatthestrainhadtheabilitytoweatherpotassium-bearingrockandcouldbeusedasaninoculumintheproductionofpotassiumbio-fertilizer,duetoitspotassiumreleaseactivityfromrockandtolerancetohightemperature.

  • 标签: 含钾矿物 链霉菌属 耐高温 增溶作用 分离 肠道
  • 简介:本文介绍了USGS(美国地质勘探局)开发的Earthworm系统在福建地震预警系统项目中的应用。该系统为开源软件,由C语言编写,由不同模块组建而成,每个模块实现不同的功能,主要包括数据接收模块、P波拾取模块、地震定位报告产出模块、地震事件图件绘制模块、地震波存储容器等。同时,用户可以根据自己的需求编写相应的功能模块。文章对该系统的应用进行了介绍,内容包括Earthworm系统的组织架构、业务流程、软件模块的主要功能搭建与配置及软件模块之间的逻辑关系等,目的在于介绍该系统的架构方法与使用心得,促进该系统在地震行业内得到应用与推广。

  • 标签: EARTHWORM USGS 简易烈度计 数据处理系统