英语翻译Answer：According to the Technical Association for Pulp a

英语翻译
Answer：
According to the Technical Association for Pulp and Paper Industry (TAPPI),and the American Forest & Paper Association only about one-third of the fiber used to make paper in the U.S.is from whole trees.only trees smaller than 8 inches in diameter,or larger trees not suitable for solid wood products,typically are harvested for paper making.The remaining two-thirds is made up of residue (wood chips and scraps left behind from forest and sawmill operations),and recovered (recycled) paper.
Assume that the paper in question is typical 20lb copy paper,and it has been produced using 100 percent hardwood,measured in cords.A cord of wood is approximately 8 feet wide,4 feet deep,and 4 feet high and weighs roughly 2 tons (15-20% water weight).It has been estimated that one cord of this wood will yield an average of 1,500 pounds of paper (300 reams).
According to the Kansas green teams website,it takes 17 trees to produce one ton of paper (no detail in this article).
According to the Trinity College in Western Australia,it takes 17 x 20 year old trees to produce 1 ton of paper.This suggests that 1 tree is equal to 22.62 reams @ 2.6 KG of the A4 80gsm copy paper.
According to the timber corporation agribusiness Investment Managers (who are encouraging landholders to plant blue gum eucalyptus trees as an investment) you can achieve 45 reams of A4 paper from a blue gum after 10 years.
A popular Paper Calculator suggests that one tree equals 14 reams of paper.To confirm this place 10 reams a week into the calculator and this equals 520 reams a year for which the calculator requires 37 trees.Their interest is to stop tree felling.
WHO KNOWS how many A4 80 GSM 500 sheet reams of paper to the "average" tree...I would suggest it depends upon the trees in question in relation to their size and paper producing qualities.The answer appears to be somewhere between 16 and 22 reams of A4 80 gsm paper per tree.How many average trees to one cord of paper producing timber as mentioned above is another interesting question.
In other words; 8,350 sheets per tree.
it depends on wha ttree you are talking about.if you say a pine tree then about 1000 pages can be made,but if it is a redwood tree than about 900000 ca nbe made since they r da biggest trees i nda world
百度、谷歌翻译看不懂的说

根据纸浆纸业技术合作社（TAPPI）和美国森林与纸业联盟的报道,美国的造纸纤维只有三分之一来自整株树木,大都是直径小于8英寸的小树,或者并不适合做家具的大树.另外三分之二则来自树木的下脚料（森林碎木片、伐树锯末）和再生纸.以标准的20磅复印纸为例（100%原木造）,1cord原木体积大约在8*4*4（英尺）左右,毛重2吨（水分15-20%）.据估计,1cord这样的原木平均能够生产1500磅的纸张（合300令）.堪萨斯绿色组织网站上披露了一组没有细节的数字,每造1吨纸需要17棵大树.另据西澳大利亚三一学院的说法,1吨纸张要用掉17棵20年树龄的大树.换句话说,平均每棵树能够出产22.62令令重2.6千克的A4复印纸.而据一直鼓励业主投资蓝桉类树木的森林农业综合投资经理人的说法：1科10岁左右的蓝桉能够出产45令A4纸.在反对滥砍滥伐的人们中流行着一个纸张计算公式：每14令纸张的生产就需要1棵树.这种计算方法表明,如果每周需要10令纸张的话,一年下来就需要砍伐37棵树木.要说清1棵树能够生产多少A4标准纸,我认为还要看树的具体情况,大小、产能,那样平均算来每株树木大概会出产16到22令A4标准纸.而前述1cord纸用原木合多少棵树,则是另一个有意思的问题.因为每棵树能够出产8350张纸的这样的说法,要看拿来比较的是什么树,一株松树大概能产1000张纸,而世界上最大的树木美国红杉,则能出产900000张纸.
纯手翻,鄙视直接google的,人家都说了看不懂那些了!