简介：ThedevelopmentofplantationplaysaveryimportantroleinforestryindustrydevelopmentinChinabecauseofitsuniqueadvantages.However,theecologicalandenvironmentalissuesurgentlyrequiresustainableplantationdevelopment.FSCcertificationforsustainableforestmanagementbalancestheeconomic,environmentalandsocialbenefitsandcontributestosustainabledevelopmentofplantation.FSCcertificationforplantationissignificantlyimportanttoChinawiththemostplantationareainthewor...

简介：Theimpropercultivationofcommercialplantation,whichisamanagementactivitywiththepropertiesofeconomy,willleadtoenvironmentlossessuchaslanddegradation,soilerosion,pestsanddiseases.Environmentalcostiseasilyneglectedbyexecutives,however,itexistsactually.Thevariety,intersectingandoverlappingofenvironmentlossesdecidetheboundaryofevaluationandthenecessityofindicesonenvironmentalcost.Theresearchanalyzesthecharacteristicsanddisciplinariansofenvi...

简介：WiththeimplementationofNaturalForestsProtectionProgram,woodresourcebaseinChinaisshiftingfromnaturallygrownforeststoplantationforests.Thispaperreviews:1)TheevolutionofChinesedecade-longreforestationprogramanditscontributiontosustainablewoodsupplyanddevelopment,and2)impactsof"China'sNaturalForestProtectionProgramand"Fast-GrowingandHigh-YieldPlantationPrograminChina"onChina'swoodsupplyandsustainability.Inaddition,thispaperhighlightsChi...

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简介：Thepaperfirstlyreviewedindustrialplantationdevelopmentinthemainforestrycountriesworldwide,andthensummarizedthestateandtrendoftheR&Dofindustrialplantationinforeigncountriesintermsofgeneticimprovement,breedingtechniques,siteevaluationtechniques,densitycontroltechniques,long-termproductivitymaintenancetechniquesanddiseasesandpestscontroltechniques.Inthemeantime,thethreemanagementmodelsemployedinindustrialplantationsabroadwasintroduced,i.e.int...

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简介：ThedryingcharacteristicwasstudiedforplantationwoodofChinesefirandpoplar,whicharetypicalplantationwoodofsouthernandnorthernpartofChina,respectively.ThroughlO0-degree-methodthedryingcharacteristicandbasicdryingconditionweregotten,thendryingschedulewasdevelopedforpracticaldrying,theresultsshowedthatthedryingscheduleissuitableforChinesefirandpoplarplantationlumber,butshrinkageislarge.Therecommendationwasmadethatenoughdeadweightisneededtodecreaseshrinkageindryingprocess.Thedryingqualityofthetwospeciesoflumberisgoodinconventionaldryingmethod.

简介：Dryingcharacteristicsof5speciesoftropicalplantationwoodwerestudiedbythe100℃-testmethod.TheresultsshowedthatalmosteverysamplehadsomelightendchecksandthesamplesofEucalyptuscitriodoraandE.exsertaweresevererthantheothersintheendcheck.E.grandis×E.urophyllaandAcaciamangiumweretheseverestininternalchecks,followedbyE.grandis,E.exsertaandE.citriodora.AndE.grandisandE.grandis×E.urophyllaweretheseverestincross-sectiondeformation,followedby...

简介：TheroleoforganicmatterintheformationandstabilityofsoilaggregatesinmulberryplantationintheHang-Jia-HuPlain,northernZhejiangProvince,wasevaluatedinthisstudy.Apositivecorrelationwasfoundbetweenwater-stableaggregatecontentsandorganicmattercontentsinthemulberryplantationsoils,whichsupportedthehypothesisthatorganicmatterwasthemaincementingagentinformationofaggregates.Aclosecorrelationwasalsofoundbetweenstabilityofaggregateandorganicmattercontents.Regressionanalysisshowedthattotalnitrogencontentwasalsoanindicatorofwater-stableaggregatecontentandstability.Theaggregatesizedistributionindicatedthatthewater-stableaggregates1～0.25mmindiameterwerethemajorcomponentoftheaggregatesinthemulberryplantationsoils.Theorganicmattercontentsofaggregatesrangingfrom5to0.25mmindiameterincreasedwiththedecreaseofaggregatesizes,andtheaggregates1～0.25mmindiameterhadthemaximumorganicmattercontent.

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简介：ThispaperdealswiththechemicalcomponentsandthechemicalstructureofligninofChinesefirandPoplarI-214fromplantationforest.Theresultsrevealedthatthecontentsofchemicalcomponentinheartwoodandsapwoodwerealmostthesameexceptethanol-benzeneextractbothinChinesefirandinPoplarI-214,Thecontentsofash,holocellulose,α-cellulose,pentosan,ethanol-benzeneextractandcold-waterextractinPoplarI-214werehigherthanthatinChinesefir,ThecontentoflignininPoplar...

简介：Plantationresourceisanimportantcomponentofforestresources.OverallplantationqualityisnothighinChina,andtheproblemslikelowgrowth,lowpreservingrateandlowproductivityarecommonlyobserved.Thispaperreviewedthehistoricalbackgroundoftheresearchonplantationproductivity,describedfactorsaffectingplantationproductivityincludingsiteconditions,initialplantingdensity,thinningmeasures,groundclearance,andcontinuousplantedalgebraandfertilization.Finally,itwasproposedtocarryoutkeytechnologysystemresearchonplantationproductivitymaintenanceandstrengthentheresearchonthelong-termness,systematicdevelopmentandmulti-purposeofplantationproductivity.

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简介：作者开发了一个模型基于树戒指数据估计年度树生长(Abbr。TGTRing模型)在0.5，1.3和2.5m高度源于箱子。这个模型被使用在Taihe县在CAS的卡尼安藻·雷佐伊尔·希尔全面发展试验性的车站估计年度生物资源和种植园的碳累积，江西省(Abbr。Qianyanzhou)。结果证明分别地，生物资源和碳累积曲线的屈折变化点在松上在质量中发生在17和18岁点，虽然两个屈折变化点在斜杠松和中国冷杉木发生在15年。在中国冷杉木的生物资源和碳累积分别地证明了比在另外的种类在最后20年里更大，与171.697t/hm2和92.29tc/hm2,。集中在松上，与一73.92tc/hm2的累积是的133.84t/hm2和碳的生物资源最低虽然斜杠松是中间的与一147.639t/hm2(unturpentined)和135.743t/hm2(turpentined)的生物资源，并且80.18tc/hm2(unturpentined)和73.72tc/hm2(turpentined)的碳累积。在2006，分别地，虽然为中国冷杉木的价值是1326.97t和713.27tc，在Qianyanzhou的松上的质量的树阶层的全部的生物资源和碳存储是3324.43t和14,156.64tc。为斜杠松全部的生物资源是14,156.64t(unturpentined)和13,015.97t(turpentined)，并且全部的碳存储是7688.21tc(unturpentined)和7068.78tc(turpentined)。跟随为树脂刮胡子斜杠松，全部的生物资源被1140.67t减少，全部的碳存储由619.43tc掉落了。

简介：TheeconomicbenefitsandoptimalrotationageofLarixkaempferipulpwoodplantationwereanalyzedunderstochasticpulpwoodpriceusingrealoptionsapproachinordertomoreeffectivelymanagementtoL.kaempferipulpwoodplantationinnorthernsub-tropicalalpinearea.Flexiblerotationageandthresholdpricetodifferentstandageofdifferentsiteindexplantationweredeveloped.Theresultindicatedthat:1)theoptimalrotationageofL.kaempferiplantationinsiteindex15,17,19,21was25,23,21and19a,respectively,asthecurrentpulpwoodpriceequals500yuan·m-3,andtheshortestrotationagewas23,20,17and15awhenfacingtobetterprice;and2)Waitoptionshouldbetheoptimumstrategyinanypulpwoodpricelevelwhenthestandageislowerthantheshortestrotationage.

简介：苍蝇灰的利用，煤燃烧的一个副产品尽最大努力种，是为发电的废物的持续使用。当垃圾堆/灰池溏里的废物不能仅仅被认为是珍贵土地和必要营养素的损失，而且由于好在空中的粒子提出重要健康危险，丢弃苍蝇灰并且重金属沥滤。必要的宏的存在--并且微量元素和它的孔作为器官的氮(N)和碳(C)补充为植物生长使苍蝇灰成为一个优秀土壤修正案。当有害重金属为农学使苍蝇灰不安全，从生物资源的不同thermochemical变换的bioenergy庄稼种植园和精力产生将是为碳中立的燃料能从石块燃料通过被产生的煤苍蝇灰利用的一个理想的方法，因此减少气候变化影响。这评论与一条综合phyto-bio-rhizo-mycoremediation途径在苍蝇灰dumpsites总结bioenergy种植园和造林的发展并且与SWOT分析的包括为热精力，电，和biofuel产生估计珍贵生物资源的利用(一种战略技术典型地过去常帮助识别力量，软弱，机会，和威胁)。通过综合phytomanagement的Bioenergy庄稼生产能从废物产生财富的十亿美元并且为苍蝇灰管理提供一个持续答案，与环境、经济、社会的好处。

简介：Approximating-natureforestrymanagementtechniqueapplicationresearchisdevelopedinCiinninghamialanceolataplantationfor17yearsatJiuxianForestFarminSongxiCounty,FujianProvince.TheresultsshowthatthebiodiversityoftheC.lanceolataplantationwasincreasedfrom48.5±3.3to74.6±3.3afteradoptingclose-to-natureforestrymanagementtechniques.Comparedwithconventionalmanagementmethod,thetestedforest’ssoilfertilitywasimproved:thesoilmoisture-physicalpropertiesandsoilexchangepropertieswereameliorated,thesoilnutrientcontentswereincreased;theaveragebreastheight,averagetreeheight,individualvolume,Chinesefirstandvolumeandstandtotalvolumewerepromotedby9.24%-17.64%,8.61%-17.29%,27.94%-58.46%,2.38%-28.64%and8.63%-37.55%,respectively.Theworsethesiteconditions,thegreatertheeffectindexeswithclose-to-natureforestrymanagementtechniqueswereimproved.

简介：ThenitrogendepositionexperimentsonCinnamomumcamphoraplantationofHunanprovincialbotanicalgardenweresimulatedfromJunethe7thtoOctoberthe7th,2010,thenitrogendepositionlevelswasrespectivelyascontrol(CK,0g·m-2a-1),lownitrogen(LN,5g·m-2a-1),mediumnitrogen(MN,15g·m-2a-1)andhighnitrogen(HN,30g·m-2a-1).ThesoilrespirationspeedandsoilsurfacetemperatureandthesurfacewatercontentofthesoilweredeterminedbyLI-8100measuringinstrument.TheresultsshowthattheaveragevaluesofsoilrespirationspeedwereCK(4.09±0.66μmol·m-2s-1),LN(2.39±029μmol·m-2s-1),MN(2.18±0.19μmol·m-2s-1),HN(2.28±0.25μmol·m-2s-1),andthetreatmentoftheCKwasobviouslyhigherthantheotherthreetreatments（P<0.01）.Withdifferentnitrogenconcentrationsdepositiontreatments,theQ10（temperaturesensitivitycoefficients）forsoilrespirationofCK,LN,MNandHNtreatmentswere1.84,1.71,1.83and1.56.Itwaspositivecorrelationbetweentherespirationspeedandthesurface（≤10cm）temperatureoftestedsoil.Itwasnegativecorrelationbetweentherespirationspeedandthesurface（≤5cm）watercontentoftestedsoil（P>0.05）.Volumetricwatercontentof5-cmsoilwasbetween0.2666-0.2944(m3·m-3),andthemonthlycontentdidnotvarytoomuchduringtheresearchperiod（1.8%-9.4%）.ThefindingssuggestthattheinitialstageofnitrogendepositionobviouslyinfluencedthesoilrespirationofC.camphoraplantation.

简介：Thepaperanalyzedthebasiccharacteristicsoffast-growingandhigh-yieldplantation,classifiedandidentifiedtheecologicalproblemsinitsdevelopment,andfinallyproposedthebasicprinciplesandcorrespondingtechnicalmeasuresforfast-growingandhigh-yieldplantationecosystemmanagementbasedontheseproblems.

简介：Thepresentstudywasanefforttounderstandtheamountoflitterfallanditssubsequentdecompositionandquantifythereleaseofavailablenutrientsandsoilphysicochemicalcharacteristicsinplantationsoffourforesttreespecies(Lagerstroemiaparviflora,Tectonagrandis,ShorearobustaandMicheliachampaca)intheChilapattaReserveForestoftheCoochBeharWildlifeDivisionintheTeraizoneofWestBengal,India.Themostlitter(5.61Mgha-1)wasproducedbyT.grandisplantationandtheleast(4.72Mgha-1)byL.parviflora.Thematerialturnoverratetothesoilthroughdecompositionfromtotallitterwasfastestduringthefirstquarteroftheyearandsubsequentlydecreasedduringthenexttwoquarters.Thematerialturnoverratewasonly1year,whichindicatesthatmorethan90%ofthetotallitterproduceddecomposedwithinayear.Theavailableprimarynutrientcontentinlittervariedacrossthefourplantationsovertheyear.Theplantationsgenerallydidnotsignificantlyinfluencethesoilphysicalcharacteristicsbutdidsignificantlyinfluencetheavailabilityofprimarynutrientsandorganiccarbonattwodepths(1-15and16-30cm)overtheyear.Theavailabilityofsoilprimarynutrientsinthefourplantationsalsoincreasedgraduallyfromthefirstquarteroftheyeartothethirdquarterandthendecreasedduringthelastquartertothesamelevelasinthefirstquarteroftheyearatbothdepths.Theavailabilityforsoilorganiccarbonintheplantationsfollowedasimilatrend.Theamountoflitterproducedandthematerialturnoverinthesoilinthedifferentplantationsdiffered,influencingthenutrientavailabilityandorganiccarbonattheplantations.TheamountofsoilorganiccarbonwashighestforT.grandis(2.52Mgha-1)andlowestforL.parviflora(2.12Mgha-1).Litteristhesourceofsoilorganicmatter,andmorethelitterthatisproducedbytheplantations,thehigherwillbethecontentandamountofsoilorganiccarbonintheplantation.