简介:Developmentsinurbanarea,whichresultsituationofurbanenvironmentprogressivelybecomeonlygoingforwardeconomicalbutretreatecologically.Thoughurbanstabilityisveryimportantecologically,itisthesameimportantasitsstabilityvalueeconomical.Annoyedstabilityofurbanecosystemshowednature'sreactionintheformof:theincreasingofairtemperature,degradationofgroundwater,floods,degradationofsurfaceofland,seawaterintrusion,coastalabrasion,contaminationofwaterintheformofdrinkingwatersmell,containingheavymetal,contaminationofairliketheincreasingofrateofCO,ozone(O3),carbon-dioxide(CO2),nitrogenoxide(NOx)andbrimstone(S),dirt,barrenatmosphere,monotonous,dirtyandnoisy.SomemetropolisanddevelopingcitiesinIndonesiaaredevelopingurbanforeststoanticipatetheabove-mentionedproblems.
简介:DemandforTechnologyintheDevelopmentoSocialForestryTXDemandforTechnologyintheDevelopmentofSocialForestryByGuoZhengmo1.Demandfor...
简介:ApplicationofPRRAtotheRuralDevelopmetinChinaTXApplicationofPRRAtotheRuralDevelopmentinChinaByShenYueqinZhouGuomoYuShuquanLiMin...
简介:DevelopmentofSocialForestrywithChineseCharacteristicsTXDevelopmentofSocialForestrywithChineseCharacteristicsByZhangChunxiaXuWe...
简介:统计生态学与分析技术和方法的前进很快发展。这份报纸在后面的方面在中国关于统计生态学做了评论:数据收集,空间并且时间模式分析,种类丰富和种类区域关系,人口动态,种类亲密关系,社区类似和社区簇分析,和社区分类。
简介:Inthe20yearsaftertheUNEnvironmentandDevelopmentConferencein1992,theessentialissuesinrelationtosustainabledevelopmenthavebeenunsolved.Theupcoming"Rio+20"conferenceputthefocusontheshifttowardsgreendevelopment.Toachievethisrequiresthechangeofsomeideologiesthatdominatehumanactions,suchastheconceptsofwealth,welfareandsecurity,anditalsorequireidentifyingthenewpositionofnatureresources,especiallythepositionofforest.Itwaspointedoutinthepaperthatforestisthefoundationofsocioeconomicdevelopmentandconstitutesbasicwealth,basicwelfareandbasicsecurityofthewholecommunityunderthegreendevelopmentcontext.Nevertheless,itisamusttoaggressivelyinvestanddevelopgreeneconomy.Itwasalsoproposedtosetupforestrydevelopmentorganizations,investmentmechanisms,policysystemandresearch&educationsystemcompatiblewithgreendevelopment.Moreover,someforestrypoliciesthatshouldberevisedwerecombed.
简介:Thehistoricdevelopmentofforestcertificationwasfirstlyreviewedinordertounderstandhowforestcertificationhasdevelopedthroughouttheworld.Thecharacteristicsofforestcertificationwereanalyzedindetails,includingtheessenceofforestcertification,approachofforestcertification,structureofforestcertificationanddevelopmentprocessesofforestcertificationstandards.Then,theforestcertificationdevelopmentinChinawasreviewed,includingbackground,basicprinciplesandobjectivesandmaintasks.Basedonthereviewsonforestcertification,recommendationsweregivensoastogreatlyboostthedevelopmentofforestcertificationinChina.
简介:Aimingrespectivelyatthetwoproblemsindesertiflcationareas,namelywatershortageandserioussoilerosion,thepolymermaterialsforcombatingdesertiflcationmaybeclassifiedaswaterabsorbing-retainingpolymers(WARPs)andsandysoilstabilizingpolymers(SSSPs).Theirfurtherclassificationsandcurrentresearcflsituationswereintroduced.ItissuggestedthatthemajorhindrancefortheirwideappHcationisthehighcost.Theauthors'newestresearchresuitsoncuttingcostandenhancingef...
简介:<正>Thehistoryofhuman’ssocialdevelopmentindicatesthattheprogressanddevelopmentofasocietyistheresultofthecollaborativeroleofscienceandtechnologyadvancementandhumanesocietyprogress.”Humanslivenotonly
简介:CHINAAERIALSEEDINGACHIEVEMENTANDDEVELOPMENT¥ByLiNuyunandZhangJingchunCurrently,aerialseedingisoneofthemostthismethodisquick,e...
简介:ParticipationofFarmersinRuralEconomicDevelopmentByDengWeijieTheparticipationoffarmersinruraleconomicdevelopmentactivitiesis...
简介:ForestpolicyevolutionwaspresentedfirstlyinordertounderstandthebackgroundofforestpolicydevelopmentinChina.Therecentchangesofforestpolicywereintroducedindetails,includingforestpoliciesonimprovingbiodiversityconservationandsecuringnationalecologicalsafety,restoringkeyecosystems,promotingsustainableforestmanagement(SFM),clarifyingforestlandtenureandprotectingfarmer’srightonforestandforestlandmanagement,promotinghealthyforestryindustrydevelopment...
简介:Multi-functionaldendrometerisakindofforestrytoolthatcanmeasuremultiplefactorsofforest.Bycombiningsensortechnologyandcomputertechnology,adigitalmulti-functiondendrometerhasbeendeveloped,whichintegratedthefunctionsofmeasuringheight,distance,azimuth,slope,elevation,formquotientofanypartsofthestemintoonebodyatthesametest.Thedendrometercanfitthecomplexforestenvironment,solvethedifficultproblemsinaspectsofplantheight,measuredistance,centraldiameterandformquotientofbreastheight.Theaccuracycanmeettherequirementsofgeneralforestsurvey.
简介:Urbanforestry,whichroseinthewestinthelatterhalfofthe20thcentury,isatypeofforestryservingforcity.Itsimportantcharacteristicisthatitmakesthroughitsnarrowsense,or"urbanafforestation",whoseobjectiveistomakecitygreenandbeautiful,anddevelopsintoaforestrysystemservingfortheurbansystem.Theconsequenceofrapidmoderncivilizationisthatskyscrapersconcentrateinurbandistrictandgreenspacebecomenarrower,resultingthatgreen
简介:Floraltransition,whichisreferredtoasaplant'stransitionfromvegetativestagetoreproductivestage,isconsideredtobeacriticaldevelopmentalswitchinhigherplants,foratimelyfloweringisamajorfactorofreproductivesuccess.Endogenousandenvironmentalcues,suchasphotoperiod,lightquality,planthormonesconcentrationsandtemperature,provideinformationtotheplantswhethertheenvironmentisfavorableforflowering.Thesecuespromote,orprevent,floweringthroughacomplexgeneticnetwork,mediatedbyacarefulorchestrationoftemporalandspatialgeneexpression.Oneofsuchcuesisphotoperiod.Rice(OryzasativaL.)servesasapowerfulmodelspeciesfortheunderstandingoffloweringinhigherplants,includingflowerdevelopmentandphotoperiodiccontrolofflowering.Inthisreview,weoverviewedanddiscussedtheflowerdevelopmentanditsmodel.Wealsooverviewedthephotoperiodicpathwaysinricefloweringcontrol,andsummarizedthepathwaysatmolecularlevel.
简介:Theuseofmoreandmoreelectronproductsrequiresinteriorwoodproductstohavetheperformanceofelectromagneticshielding.Oneofthewaystorealizeitistointroducethechemicalplatingwhichhasalreadybeendevelopedinelectronindustryintowoodprocessing.Thepaperclarifiesthemechanismofelectrolesscopperandgoldplatinganditsapplicationtowood.Itemphasizesthedevelopmentandtechnologyofelectrolesscopperandgoldplatingonwood.Meanwhile,itpointsoutthatitishighlyfeasibletotakethistechnologyintoeffect.
简介:TheprimaryconservationobjectiveinChinaistoestablishnaturereservestoprotectbiologicalresourcesandnaturalheritage,protectecosystemswhichareofglobalimportanceorhaveuniqueregionalfeatures,protectendangeredandthreatenedspeciesandtheirhabitat,andsafeguardthegeneticresources.By2000,thenumberofnaturereservesincreasedto1,276,whileatthesametime,thetotalareaprotectedinnaturereserveswasupto123millionha.Ofthetotalnumberofreserves,908sites...
简介:Thepaperanalyzedthebottlenecksofinternationalforestfinancingdevelopmentfromtheperspectiveofthedevelopmentstateofforestfinancingmechanism.Italsoanalyzedthedevelopmentpossibilitiesofemergingfinancingchannelswhileintroducingofficialdevelopmentassistanceandnon-financialdevelopmentassistanceintheframeworkofinternationalforestfinancingmechanism,andpooledthevariousexistingforest-involvedfundstoproposeafeasiblearchitecturedirectionforpossiblefuturedevelopment.
简介:ThemainproductsandspecialzonesofChina’sfurnitureindustrywerepresentedfirstlyinthispaper.Somefeaturesoffurnitureindustrywerereviewed,includingthesourcecountriesoffurniturematerials,mainspeciesoffurniturematerials,thedistributionofmajorproducersandthemainmarketsofChina’sfurniture.Inaddition,themanagementoffurnitureindustrywasdescribedintheend.