简介：<正>In2001,ShanxiProvincecarriedoutapiloteffortofcollectivenaturalforestfamilytrusteeshipinMaxiandShangaoofXinyuanCounty,theworkgotalongsmoothly,andtheruralhouseholdsshowedenthusiasmofmanagementandcreatedmanysuccessfulexperiences.Thecoreofthetrusteeshipare:(i)theexperienceofruralresponsibilitysystemisusedforreference,theownershipinthecollectiveforestmanagementwasstabilizedandthemanagementrightwassetfree,withforestmanagementcontractasbasicmode,theownershipandmanagementrightofexistingforestresourcebe

简介：PEDOSPHEREisapeer-reviewedinternationaljournalofsoilscience.Itwelcomessubmissionsfromscientistsaroundtheworldunderabroadscopeoftopicsrelevanttotimely,highqualityoriginalresearchfindings,especiallyup-to-dateachievementsandadvancesintheentirefieldofsoilsciencestudiesdealingwithenvironmentalscience,ecology,agriculture,bioscience,geoscience,forestry,etc.Itsareasofparticularinterestincludesoilphysics;soilchemistry;soilbiologyand

简介：PEDOSPHEREisapeer-reviewedinternationaljournalofsoilscience.Itwelcomessubmissionsfromscientistsaroundtheworldunderabroadscopeoftopicsrelevanttotimely,highqualityoriginalresearchfindings,especiallyup-to-dateachievementsandadvancesintheentirefieldofsoilsciencestudiesdealingwithenvironmentalscience,ecology,agriculture,bioscience,geoscience,forestry,etc.

简介：SendmanuscriptsandaddressalleditorialcorrespondencetotheEditorialOfficeofPEDOSPHERE,InstituteofSoilScience,ChineseAcademyofSciences,P.O.Box821,Nanjing210008,People'sRepublicofChina.Tel:+86-25-86881235;Fax:86-25-86881256;E-mail:eopedos@issas.ac.cn,eopedo@issas.ac.cn,pedosphere@issas.ac.cn,rmdu@issas.ac.cn.

简介：PEDOSPHEREisapeer-reviewedinternationaljournalofsoilscience.Itwelcomessubmissionsfromscientistsaroundtheworldunderabroadscopeoftopicsrelevanttotimely,highqualityoriginalresearch?ndings,especiallyup-to-dateachievementsandadvancesintheentire?eldofsoilsciencestudiesdealingwithenvironmental

简介：ElementcontentsoftreeringsandsoilsneartreerootscollectedfromDeodarcedar(Cedrusdeodara(Roxb.)G.Don)andMassonpine(Pinusmassonianalamb).weredeterminedtostudytherelationshipbetweentheangulardistributionofelementcontentsintreeringsandtheenvironmentalinformation.Thechemicalcompositionandpropertiesofsoilareverymuchcmoplicated,whichleadstothenon-uniformdistributionoftheelementcontentsintreerings.Thestatisticalmulti-varialberegressionmethodwasusedtogettheinformationofthetree-centereddistributionofelementcontentsintheenvironment(soil),(C'),C'(Z,θj),fromthedistribtuionofelementcontentsintreerings(C),C(Z,θi),whichdependsontheplaneazimuthangle(θi),i.e.,C=C(Z,θi),whereZistheatomicnumberoftheelement,withasatisfactoryresultthoughthisstudyisonlyaprimaryone.

简介：以中文Ｗｉｎｄｏｗｓ３．１为系统运行环境，以ＷＩＮＧＩＳ为基础，用ＭｉｃｒｏｓｏｆｔＶｉｓｕａｌＢａｓｉｃ４０作为开发工具，建立了荒溪分类和危险区制图模型及其信息系统．该系统由文件管理子系统、属性数据管理子系统、图形数据管理子系统、应用模型子系统等构成．应用结果验证了系统模型的各项功能，表明系统设计合理，运行稳定、安全．

简介：拿的Linkou林地局，Heilongjiang省，是的中国是的示范阴谋和Dendrolimuspinidiatrea一个例子，我们用J2EE和ArcGIS服务器技术为森林害虫预报开发了一个基于WebGIS的信息服务平台。服务平台能在B/S环境预言出现时期，害虫的数量，出现趋势，和害虫地区并且认识到显示器，查询，分析并且空间数据和自动地综合的控制编辑多铺平数据。Additionaly，服务站台提供地理服务和预言的结果的可视化。它为森林害虫和森林资源管理的预言提供一个答案。

简介：RedsoilisaveryimportantsoilresourceinsouthernChina.However,duetobeingsimultaneouslyofhighproductivepotentialitiesandseverelydegraded,itneedsharnessingurgently.RedSoilResourceInformationSystem(RSRIS)basedonremoltesensingandgeographicinformationsystem(GIS)playsanimportantroleinsurvey,evaluation,utilziationandmanagementofredsoilresource.RSRISofQuzhouCity,ZhejiangProvince(1:250000)andRSRISofLongyouCounty,ZhejiangProvince(1:50000)havebeenmaderespectivelyonSUNSPARCstationandusingRC/INFO.Thispaperintroducesthesystemdesign,databsecreationandsystemfunctions,anditparticularlyfocusesondevelopingappliedmodels,suchasredsoilresourcedivisonandmapping,suitabilityevaluation,erosionriskevaluation,plantutilizationzoneetc.TheproblemsonstudyofRSRISanditsdevelopingstrategyarealsodiscussed.

简介：Thisstudywasonsuperiorityofthenon-negativematrixfactorization（NMF）algorithmforapplicationofinformationextractedwithaerialimages.First,NMFwasusedforaerialimageinformationextraction,andthenthisdatawascomparedwithaprincipalcomponentanalysis（PCA）inwhichr（thenumberofrowsorcolumnsofbasicmatrix）andEignum（thenumberofeigenvalues）weregivendifferentvalues.ExperimentalresultsshowedthattheruntimeofNMFwithr=20or50waslessthanthatofPCAwithanEignum=20or50.Also,therecognitionrateofNMFwithr=50washigherthanthatofanEignum=50.Theexperimentshowedthatnonnegativematrixfactorizationhadadvantagesofashorttimeperiodwithahighrecognitionrate.

简介：TheapplicationofGeographicInformationSystem(GIS),RemoteSensing(RS)andGlobalPositionSystem(GPS)intheresearchofforestlandscapeisoutlinedinthispaper.Theintegrationofthe3Stechniqueisalsodescribed.Inthe3Ssystem,RSisusedtoobtainthevariousinformationofforestlandscape.GPSisusedtoobtainthegrounddataoforientationandguidethepeopletothedifferentplaces.AndGISisusedininformationmanagementandprocessing.

简介：为米饭核心收集的十一评估参数被估计基于ongenotypic价值和分子的标记信息。与混合线性模型相结合的蒙特卡罗模拟被用来从环境消除干扰以便拉更可靠的结果。范围(CR)的巧合率是最佳的参数。吝啬的Simpson索引(M_D)，基因差异(M_I)的吝啬的Shannon编织索引和吝啬的多型性信息内容(M_(照片))是重要的评估参数。变异系数(VR)的可变的率能为评估核心收集的变化度充当一个重要引用参数。多态的loci(p)的百分比能为核心收集的尺寸被用作一个决心参数。吝啬的差别百分比(MD)是为核心收集的可靠性判断的一个决心参数。为在研究选择的核心收集的有效评估参数能在不同plantgermplasm人口为采样百分比被用作标准。

简介：Themodernizationandinformatizationmanagementofancientandfamoustrees’managementisanimportantstandardwithwhichthemunicipalpublicresourcemanagementlevelofaregionorcitycanbemeasured.Designanddevelopmentofancientandfamoustrees’three-dimensionalmanagementinformationsystemwasrealizedbasedonvirtualplantbyusingintegratedtechniquesofvirtualplantsandGeographicInformationSystem.Thesystemarchitecturedesignwasdevelopedonthebasisoffunctionalrequirements,andthepracticalsystemwasachievedinVisualStudio2008developmenttoolsandOpenGLgraphicsstandards.Thesystemhasfunctionofancienttreesarchivesmanagement,three-dimensionalreconstructionofthetreessurroundingenvironment,individualtreeinformationinquiryinthree-dimensionalscene,etc.Applicationanddisseminationofthissystemwillgreatlypromotethemanagementandprotectionofancientandfamoustreesstandardization,informalizationandvisualization

简介：Integrationofsoilinformationsystem(SIS)andinteractiveself-organizingdata(ISODATA)wasstudiedtoestablishproperagriculturaldevelopingzonesinredsoilregionofsouthernChinawhichareofcrucialimportancetofarmers,researchers,anddecisionmaderswhileutilizingandmanagingredsoilresources.SIScreatedbyusingARC/INFOwasusedtoprovidedataacquisition,systematicmodelparameterassignment,andvisualdisplayofanalyticresults.Topography,temperature,soilcomponent(e.g.,organicmatterandpH)andconditionofagriculturalproductionwereselectedasparametersofISODATAmodel.TakingLongyouCounty,ZhejiangProvinceasthecasestudyarea,theeffectoftheintegrationandrecommendationsarediscussedforfutureresearch.

简介：我们使用了GIS和最大的熵预言六蛇种的潜在的分发在Kroumiria(西北的突尼斯)属于三个家庭：Natricidae(Natrixmaura和Natrixastreptophora)，Colubridae(Hemorrhoishippocrepis，Coronellagirondica和Macroprotodonmauritanicus)，和Lamprophiidae(Malpoloninsignitus)。为每种的合适的产地用最大的熵算法被建模，联合存在地数据(在16期间镇定?年：2000-2015)与一套七个环境变量(吝啬的年度降水，举起，斜坡坡度，方面，到水路的距离，陆地表面温度和规范的微分植被索引。这些环境变量的相对重要性被大折刀测试评估，我们的模型的预兆的力量在操作特征的接收装置下面用区域被估计。种类分发的主要解释变量是来自流和举起的距离，与分别地从60～77并且从10～25%的贡献。我们的学习提供了适用性在Kroumiria为蛇建模的第一个产地，这个信息能被担心在Kroumiria保存蛇的保存生物学家和陆地经理使用。

简介：在干燥陆地的系统的木质的植物的地位是关键生态系统进程的一个基本决定因素。这地位监视在在干旱、半干旱的生态系统理解木质的植物的动力学起一个重要作用。现在的学习用遥感和地理信息系统技术和统计科学在伊朗决定了Zagros森林的精力。结果证明树的密度从10～53变化了?%根据半干旱的区域的地文学、气候的条件。在植被索引和森林密度之间的最好、最低的关联为全球环境监视索引被获得(GEMI；R2?=?0.94)和土壤调整植被索引(R2?=?0.81),分别地。GEMI被用来监视使用在一个10年的时期上改变的土地。结果显示出那2720?哈森林的2被人的干扰和耕种在也导致了肥沃的土壤层的损失的这个时期期间在陡峭的斜坡上破坏了。GEMI决定了区域与一树的生物资源并且有从没有华盖的区域的树的低生物资源密度的通常分开的边阶区域能盖住。结果用卫星在干旱、半干旱的艰巨森林区域揭示了对森林和植被盖子的那个评价数字数字和平常的采样服从于无常。一个成层的组织过程应该被建立增加评价的精确性。

简介：PhysiographyandsoilinMaeRimwatershed,ChiangMaiProvince,Thailandwereinvestigatedbyusingaerialphotographsandsatelliteimageinconjunctionwithfieldwork,andsoilinfiltrationrateandsoilshearresistanceweremeasuredinfield.ManyfactorsaffectingrunoffwereanalyzedusigtheIntegratedLandandWaterInformaitonSystem(ILWIS).Asaresult,amodeldeterminingfloodhazarwassetup.Threempsincludingrunoffcurvenumbermap,runoffcoefficentmap,andfloodinumdationmapwerecreated,Inaddition,thetimeofconcentrationwaspredicted.