简介：fruit and gingerbread.The popularity of the Christmas tree grew in Britain during the first half of the 20th century,which was too heavy and kept breaking. It was only in the mid 20th century that a viable alternative was found.Artificial trees were invented in the 1880's in a bid to try and stop some of the damage being caused to real trees due to people lopping the tip off large trees,Martin Luther (the founder of the Protestant religion) was the first to decorate an indoor tree with candles when he attempted to recreate the stars shining over a forest of evergreens.The first mention of decorated trees being taken indoors came in 1605 in Germany - a country with a long Christmas tree history

简介：也许你知道自己的星座，幸运花；可是你知道你的生日树吗？不同的月份有着不同的品种，或者坚强、或者挺拔、或许美丽无比……

简介：茹越悦：和平树上，枝叶茂盛，总有鸽子前来小憩。有一天，来了一群小学生，他们在树叶上写下了自己的心愿。于是，和平树带着对和平与美好的希冀，继续蓬勃生长。

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简介：圣诞节的夜晚，最不能缺少的是光彩夺目的圣诞树。一棵棵漂亮的圣诞树把圣诞节的夜晚装扮得绚丽多彩，美仑美奂……

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简介：fruit and gingerbread.The popularity of the Christmas tree grew in Britain during the first half of the 20th century,which was too heavy and kept breaking. It was only in the mid 20th century that a viable alternative was found.Artificial trees were invented in the 1880's in a bid to try and stop some of the damage being caused to real trees due to people lopping the tip off large trees,Martin Luther (the founder of the Protestant religion) was the first to decorate an indoor tree with candles when he attempted to recreate the stars shining over a forest of evergreens.The first mention of decorated trees being taken indoors came in 1605 in Germany - a country with a long Christmas tree history

简介：在属于我们青春的LemonTree上，终于长出了友谊Lemon了。

简介：Alongtimeago,therewasahugeappletree.Alittleboylovedtocomeandlayarounditeveryday.Heclimbedtothetreetop,atetheapples,tookanapundertheshadow…Helovedthetreeandthetreelovedtoplaywithhim.Timewentby…Thelittleboyhadgrownup

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简介：看，有一个可爱的女孩，她正在大树下听音乐，绿荫和欢乐正笼罩着她。哈哈，这是我的伞画。有人能在扇子上作画，我却能在伞上画画。我为伞画取了个名字《树荫下》，它的灵感来自一首轻音乐——《绿色花园》。

简介：ＴｈｅＭａｒｖｅｌｏｕｓＧｉｎｇｋｏＴｒｅｅＢｙＣＨＥＮＳＨＵＰＥＮＧＤＯＵＢＴＬＥＳＳｅｖｅｒｙｏｎｅｈａｓｈｅｒｄｏｆｔｈｅｇｉｎｇｋｏ，ｂｕｔｆｅｗｋｎｏｗｈｏｗｓｐｅ－ｃｉａｌａｔｒｅｅｉｔｒｅａｌｌｙｉｓ．Ｓｃｉｅｎｔｉｓｔｓｃａｌｌｔｈｅ...

简介：圣诞树圣诞树是圣诞节必不可少的装饰。圣诞树都是由常青树（如小棕树或小松树）装饰而成。树上布满五颜六色的小蜡烛或小电电灯，再挂上各式各样的装饰品与彩带。

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简介：ANYawardassociatedwiththelateSoongChingLing(1893-1981),widowofChineseRepublicanleaderSunYat-senandafiguresynonymouswithworldpeaceandtheChineserevolution,isofhigheminenceandprestige.

简介：“我”小心翼翼地将一片小绿叶摘下，送到鼻子边，这香味是如此的浓烈和清新，爸爸不在了，可他给我的安慰就像我手中的这片橘树叶子一样亲近。

简介：在这篇论文，我们学习树鞅并且证明了那如果1≤α，β<∞，1≤p<∞那么为每可预言的树鞅f=(英尺，t∈T)并且E[σ(P)(f)]<∞，E[S(P)(f)]<∞，Cαβ在哪儿仅仅取决于α和β，保持那。

简介：Background:InIndia,rubber(Heveabrasiliensis)plantationscover~0.8millionhaofland,emphasizingitssignificantroleintheEarth'scarbondynamics.Therefore,itisimportanttoestimatethebiomassstocksofplantationspreciselyinthecontextofcarbonmanagement.PreviousstudiesinIndiahavefocusedondevelopmentofallometricequationsforestimatingabovegroundbiomass(AGB)throughharvestingyoungertrees(upto14yr)onlyoronstudieswithsmallsamplesizeswithoutassessingmodelbias.Theobjectiveofthisstudywastodevelopbiomassestimationmodelsfordifferenttreecomponentsinrubberplantationsandassessmodelpredictiveperformanceatthestandlevel.Methods:Atotalof67treeswereharvestedfromplantationsofdifferentages(6,15,27and34yr)inNorthEastIndiaandtheirdiameterat200cm(D),heightanddryweightsofdifferenttreecomponentswererecorded.ThedatawereusedforevaluationofH-Dandbiomassestimationmodelsatthestandlevel.Results:TheMichaelis-Mentenfunctionwasfoundtobethemostappropriatemodelforestimatingtreeheightamong10commonlyusedH-Dmodels.ForestimationofAGBandcoarserootbiomass,amodelthatinvolvestreevolume(i.e.D2H)wasfoundtoprovidebetterpredictionthaneitherDorHaloneoramodelthatcombinesH,Dandstanddensity.TheestimatedAGBvariedfrom28Mg·ha~(-1)in6yr.oldplantationto169Mg·ha~(-1)in34yr.oldplantations.Thecoarserootbiomasswasestimatedat4Mg·ha~(-1)for6yr.oldplantationand12Mg·ha~(-1)for34yr.oldstands.Conclusions:Itisconcludedthatmodelsinvolvingtreevolumearemoreappropriateforregionallevelbiomassestimationthansimplepower-lawmodelsforindividualstands.Werecommendthatthepower-lawmodelshouldnotbeusedforestimationofAGBinplantationsatdifferentgrowthstagesbecausepower-lawparameterscanbebiasedduetodatatruncation.