简介:Man-ETourismVillageofDaiNationalityCstomsinXishuangbannaTXMan-ETourismVillageofDaiNationalityCustomsinXishuangbannaByDuanQiwuX...
简介:Forestryindustryisanimportantcommonwealandfundamentalindustry.Forestryenterprisestaketheburdenofecologicalconstructionandsupplyofforestproducts,andeconomicalbenefits,ecologicalbenefits,andsocialbenefitsaswell.However,electronic-business(e-business),asacompletelynewbusinessoperationmodel,willbringgreatopportunitiesandchallengestoforestryenterprises.Onthebasisofsimpleanalysisofe-businessconceptionmodel,theinternalandexternalenvironmentforforestryenterprisestodevelope-businesswasthoroughlyanalysedandresearched,andfinallyeffectivestrategicoptionswereproposed.
简介:Eucalyptusisthemostvaluablecultivatedforestgenusinthetropicalandsubtropicalareasnowadays.Ithasbeenachallengeforforesterstomodelgrowthduetothegeneticvariations,managementregimes,andmultipleproductsgeneratedfromtheplantations.Inthispaper,LogisticequationwasusedtostudythestockgrowthprocessofE.urophylla×E.grandisplantationatageof14with6spacingtreatments.AndthebiologicalinterpretationoftheparametersofLogisticequationwasanalyzed.There...
简介:KafangTownship,XinxianCountyofHenanProvinceislocatedinthehinterlandoftheDabieMountainborderingHenanandHubeiprovinces.Thistown...
简介:XixiaCountyissituatedinthesouthwestborderareaofHenanProvinceandtheuppervaleyoftheDanjiangRiverwiththeFuniushanMountaintothes...
简介:Soilmicrobesmaybecriticalplayersindeterminingtheallelopathicpotentialofsomeplants.LowlevelsofplantcommunitybiodiversityinEucalyptusplantationshavebeenattributedtotheallelopathicpotentialofthesetreespecies.TheroleofsoilmicrobesintheallelopathiceffectofleafleachatesofthehybridtreeEucalyptusgrandis9E.urophylla,wastestedinPetridishassayswithBrassicachinensisasareceiverplant.Soilswerecollectedfromeitheralocalgarden(soilA)oraEucalyptusplantation(soilB)andhalfofeachsoilwassterilizedtoremovemicrobes.ThesesoilswerethentreatedwithE.grandis9E.urophyllaleachatesfor0-72h.SeedgerminationofB.chinensiswassignificantlyinhibitedinsoilstreatedwithleafleachatesrelativetountreatedsoils.Theinhibitoryeffectoftheleafleachateswasmorepronouncedinsterilizedsoils.Totalphenoliccontentwasobviouslowerinnonsterileleachatetreatedsoilsthaninsterilesoils.BiomassofB.chinensiswasnegativelycorrelatedwiththetotalphenoliccontentinsoils.OurfindingssuggestthatsoilmicrobescanalleviatetheallelopathicpotentialofEucalyptusandtherebyitsnegativeimpactonplantgrowth.
简介:研究被进行评估未葬生物资源,养分含量和在桉树类camaldulensis和桉树类的mycorrhizal殖民的百分比宏大是在半干旱的区域的种植园(15°09′S43°49′W)在在巴西的古代希腊的金额单位Gerais的状态的北方。结果证明总数未葬生物资源(干物质)是33.6Mg·h为E的−1。camaldulensis和53.1Mg·h为E的−1。宏大。茎木头,叶子,分支,和茎的生物资源为E吠叫。camaldulensis占了64.4%,19.6%,15.4%,和0.6%全部的生物资源,分别地(桌子2);同时总数的一个类似的分区未葬生物资源也被作出对有利的裁决E。宏大。叶子的干物质和E的分支。camaldulensis在叶子说明了N,P,K,Ca,Mg,和S的35%全部的生物资源,和内容,分支总共占了15.5%,0.7%,12.3%,22.6%,1.9%,和1.4%那些未葬生物资源分别地。在箱子(bark和木头)中,滋养的累积一般来说更低。E的养分含量。宏大被介绍很少变化与E的相比。camaldulensis。在箱子的优异部分局部性的伍德介绍了P的更高的集中,bark包含了营养素的重要数量,特别在E。宏大。这显示离开植物的废物具有在在这个半干旱的区域减少树生产率的损失的地点上的重要性。二种显示出mycotrophy。
简介:我们比较了在处于Karnataka的状态种区域的三棵宽广柚木从三个种子生产区域(矿泉)和柚木(TectonagrandisL.f)的三个相应未耕过的看台(UIS)获得的子孙的词法、基因的属性,印度。一般来说,播种象种子重量,种子尺寸和种子空虚那样的词法参数在与UIS相比的矿泉是显著地优异的。种子萌芽百分比在从矿泉的种子也是更高的。在二每月的间隔测量六个月的幼苗性能被观察在在比较的三个区域中的二个的矿泉优异。尽管矿泉的子孙的基因差异根本比UIS低区域,价值中等高。当差异索引否定地每种子与水果重量,水果直径和核重量被相关时,萌芽百分比断然每种子与水果重量和核重量被相关。矿泉没有对未来种植园的基因差异的严重威胁作为中等改进的种的材料的来源证明重要。