简介：ＦＲＯＭＷＯＭＥＮ＇ＳＭＯＵＮＴＡＩＮＰＲＯＤＵＣＴＩＯＮＢＲＩＧＡＤＥＳＴＯＷＯＭＥＮ＇ＳＴＲＥＥＦＡＲＭＳ￥ＢｙＸｉｅＪｉｎｇｘｉａｎｇＹｏｕｘｉｃｏｕｎｔｙｉｓｓｉｔｕａｔｅｄｉｎａｍｏｕｎｔａｉｎｏｕｓ，ｐｏｏｒｌｙｆｏｒｅｓｔｅｄｒｅｇｉｏ...

简介：ＤｉｓｃｕｓｓｉｏｎｏｆＸｉｘｉａ’ｓＦｏｒｅｓｔｒｙＡＭｏｄｅｌｆｏｒｔｈｅＤｅｖｅｌｏｐｍｅｎｔｏｆＣｈｉｎａ’ｓＴｏｗｎｓｈｉｐＦｏｒｅｓｔｒｙ￥ｂｙＸｕＧｕｏｚｈｅｎＰｏｖｅｒｔｙｉｓｓｔｉｌｌａｓｅｒｉｏｕｓｓｏｃｉａｌａｎｄｅｃｏｎｏｍｉ...

简介：ＷＯＭＥＮ’ＳＰＡＲＴＩＣＩＰＡＴＩＯＮＩＮＳＯＣＩＡＬＦＯＲＥＳＴＲＹＢｙＬｕｏＲｏｎｇｈｕａｉＬｕｏｓｈｕｉｉｓａｖｉｌｌａｇｅｉｎＮｉｎｇｌａｎｇＣｏｕｎｔｙｉｎＹｕｎｎａｎＰｒｏｖｉｎｃｅ．ＭｏｓｔｏｆｏｆｔｈｅＭｏｓｕｏｎａｔｉｏｎａｌｉｔ...

简介：Inrecentyears,thequantityandqualityofglobalforestresourcesaredecliningcontinually.Contrarily,thebothinChinaareincreasing,whichisdeeplyrelatedtothesustainableforestmanagementandeco-systemmanagementinChina.Withthetrendthatworldcommunityknowsmoreabouttheimportantroleofforest,moreandmorefunctionsofforestarerecognized.TheimpactandfunctionsofChina'sforestrydeservemoreconcern.Basedonsomeexperiencesinthefieldofforestryresearch,theauthors...

简介：Forestshavemultiplebenefitsandfunctions,includingmitigationofclimatechange.Theimpactsofforestsontheglobalcarboncycleincludeforestsascarbonsinks,wood-basedproductsascarbonsinks,bio-energy,andproductionanduseofnon-timberproducts.Inthepastdecades,forestcoverofChinahasincreasedfrom8.6%to18.21%bylarge-scaleafforestationandconversionofcroplandintoforests.Forestbiomasscarbon(C)stockincreasedfrom4.3PgC(1PgC=1015gC)intheearly1980sto5...

简介：Asanemergingindustry,China'swoodfloorindustrydatesbacktotheearly1980s.Despitealatestart,ithasdevelopedrapidlyduringthelast20years.ThepastdecadeshavewitnessedgreatchangesinChina'swoodfloorindustry.Withhighquality,manyproducts"madeinChina"areavailablewidelyabroadnowadays.Currentglobaleconomicshocks,however,affectChina'sdomesticrealestatesector;hencethefallingdomesticsalesofwoodfloor.Thepaperaimstoidentifythecurrentsituationoffloorindustry...

简介：<正>营林作业中常用的小型营林机械,如弥雾喷粉机、割灌机、油锯及风力灭火机等,均是以单缸二冲程汽油机为配套动力。单缸二冲程汽油机的点火系统为磁电机式,其工作好坏直接影响到机器的功率、油耗及使用寿命,定期地检查和调整点火提前角,是一项不可忽视的工作。1、点火提前角及其对汽油机的影响。

简介：运用生命周期评价法，对利用光皮树果油与地沟油制取生物柴油在全生命周期的能耗和环境排放进行定量分析，并将分析的结果与传统柴油进行比较。结果表明：两种原料生产的生物柴油在使用阶段的CO、NOx、HC、CO2排放比例最高，而SOx排放主要是在生产环节和种植环节产生的。在全生命周期中，两种原料生产的生物柴油能耗要大于传统柴油，CO2排放量显著减少，NOx、HC排放高于传统柴油，CO、SOx排放与传统柴油相当。利用两种原料制取的生物柴油在全生命周期中的能耗和环境排放相较于传统柴油未展现出明显的优势，但在CO2减排和废弃物利用方面优势显著。

简介：Urbangreening,urbanforestryandurbangreenstructureplanningalllookatacityasaunitandintendtoimprovethestatusofgreenspaceinthecity.Eventhoughtheyarenewterms,theirconceptshaveevolvedoveraratherlongperiod.Thispaperpresentsahistoricalreviewofwesternconceptsforurbangreeningsincethe1850s.Thefirstaimistoestablishanoverviewofhowtheurbangreeningconcepthasdevelopedandwhattherelationshipsarebetweenthehistoricalconceptsandurbangreening,urbanforestryandurbangreenstructureplanningtoday.Thesecondarypurposeistounderstandsomekeyissuesforurbangreeningthroughtheexaminationofhistoricalprecedents.Basedonaliteraturereview,thepaperpresentsseveralhistoricalconceptsforurbangreening-rampartareaplanning,parksystem,greenbelts,greenwedgesandgreenways.Thenewconceptofurbangreenstructureisalsointroduced.Eachconceptisdefined.Thesocialbackgroundandtheinfluenceoncitydevelopmentaredescribed.Thereviewshowsthattheconceptofurbangreeninghasalonghistory,parallelwiththedevelopmentofthecityplanningconcepts.Thescopeofurbangreeninghasbecomelargeroverthepastyears.Thefunctionsofurbangreenspacehavechangedfromsingle-purposetomulti-purpose.Thestudyindicatesthathistoricalconceptsmaystillgiveinspirationintoday'surbangreeningprocess.

简介：Man-madeforest,whichistheforestecosystemofrehabilitationandreconstruction,playsasignificantroleintheprovisionofforestproductsandimprovementtheecologicalenvironment.Inthispaper,weestablishedtheAR(5)modeltopredictChina'sforestareafrom2009to2015.Thisstudyshowstheslowgrowthofthenationalplantationareatrendwithsomefluctuations,buttheoverallgrowthrateisnotlarge.WeproposedthatononehandChinashouldcontinuetoincreasetheplantationarea,ont...

简介：

简介：带电磁过滤装置的机油专用滤油机是利用电磁线圈产生的直流磁场，作用于具有较大导磁系数物，从机油中除去铁、铜等金属氧化物及其他杂质的一种装置。机油中的铁、铜等金属会被带磁的多层不锈钢网吸附住，达到过滤的作用。本文介绍了一种能对机油中含有的铁、铜等金属进行有效分离的滤油机。

简介：TheforestproductstradefromothercountriestoChinaispredominantlyandtremendouslyincreasingandmanydealers,officialsandscholarsareconvincedthatthistrendwillcontinue.Thispapercovers5topics:(1)AnalysisonChina'sforestresources;(2)AnalysisonthesupplyanddemandfactorsofforestproductsinChina;(3)TheimporttradeofrecentmainforestproductsinChina;(4)ThemarketcharacteristicsofforestproductsinChina;(5)ThedevelopmenttrendsofforestproductsinChina.

简介：瑞典：Sōdra公司已经对针叶锯材市场销售疲软的情况做出反应，8月底削减其在拉姆克维拉（Ramkvilla）、图绍斯市（Torsas）和Langasjō工厂的生产量总计约5万～6万m^3。第1步，在拉姆克维拉和图绍斯市节日期间约4个星期的停产时间将多延长2个月。这2家工厂将于6月4日停止锯切加工，8月27日恢复。

简介：ThepaperanalyzedthecurrentstatusofforeigntradeofforestindustryinChinaandthenationalandinternationalmarketchanges.Basedontheanalysis,theorientationandtransformationofforeigntradepolicyforChina'sforestindustrywerediscussed.

简介：ＧＲＥＥＮＭＥＳＳＥＮＧＥＲ──ＷＯＭＥＮ’ＳＭＯＵＮＴＡＩＮＰＲＯＤＵＣＴＩＯＮＢＲＩＧＡＤＥＩＮＹＯＵＸＩＶＩＬＬＡＧＥＢｙｐｒｏｊｅｃｔｔｅａｍ“ＷｏｍｅｎａｎｄＳｏｃｉａｌＦｏｒｅｓｔｒｙ”Ｗｏｍｅｎｉｎｍｏｕｎｔａｉｎｏｕｓａｒｅａｓｗａｒ...

简介：3S技术是林业实现跨越式发展的必然选择,以信息技术为代表的"数字化"高新技术应用于林业,必然提高现代林业的管理水平和服务质量,推进结构调整的进程,增强林业产业的应变力和竞争力,实现林业管理革命和林业信息化.数字林业技术体系的实施,对林业可持续发展、实时监测森林和野生动物资源、及生态环境变化,保障林业生态工程建设,充分挖掘和利用我国现有的数据和信息资源,推进行业科技创新,实行无纸化办公,减少决策的盲目性等都有积极意义.

简介：Climatechangeisagreatconcernofvariouscountries,thepublicandsciencecommunity,andforestplaysanimportantroleinmitigatingclimatechange.ThepapermadeacomprehensiveanalysisregardingthepolicyselectionsofChinatopromoteforestryresponsetotheglobalclimatechange,andelaboratedtheconcreteactionsandachievementsinthisregard.Policyselectionsinclude:1)Reinforcetreeplantingandafforestation,increasetheforestedareaandenhancethecapacityofcarbonsequestration...

简介：ＶＩＬＬＡＧＥＦＯＲＥＳＴＲＹＳＴＡＴＩＯＮＳＰＥＲＦＯＲＭＡＮＩＭＰＯＲＴＡＮＴＲＯＬＥＩＮＣＨＩＮＡ’ＳＳＯＣＩＡＬＦＯＲＥＳＴＲＹＤＥＶＥＬＯＰＭＥＮＴＢｙＺｈｕＴｕｅ；ＷａｎｇＬｉｐｉｎｇ；ＳｈｉＷｅｎｋａｉＴｈｅＲｅｌａｔｉｏｎｓｈｉｐＢｅ...

简介：Themarketmechanismforforestecosystemservicehasalreadybecomecommonknowledgeamongcountriesintheinternationalmovementtoaddressglobalclimatechange.Inthispaper,internationalexperiencesofforestecosystemmarketsuchasbetterunderstandingofconcept,publicparticipation,soundtradingrulesandmeasurementstandardsareanalyzed,anditsimplicationforChinaisalsosummarized.Finally,theprospectsofforestecosystemservicemarketinChinaarediscussed.Thepurposeofthispaperi...