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印度一位大学教授说:通过科学的方法计算,一棵正常生长50年的树,对人类的贡献如果用金钱来计算的话,价值约20万美元左右。其中,产生的氧气价值3万多美元,防止大气污染为6万多美元。防止水土流失、增加土地肥力可创价值为3万多美元,涵养水源、促进水份再循环的价值约4万美元,为鸟类及其它动物提供栖息环境价值为3万多美元,除此之外,还生产约值3千美元的蛋白质。不包括树木本身的价值。一株树如此,那么十株、百株、千株、万株呢?于是我想起了森林,想起了浩浩无边的绿色王国。 绿色王国,是一个千姿百态、绚丽芳菲的世界。那蕴藏着无穷奥秘的大森林中,奇花异草,争妍斗艳,嘉木珍树,竞技赛态,一片生机勃勃、欣欣向荣的景象。古往今来,不少诗人、画家、音乐家曾陶醉在这个迷人的绿色世界里,凝思遐想,灵感闪光,激情似浪。 传说,远古时代,上帝发现人类道德堕落,精神沉沦,于是用漫天洪水进行惩罚。发水之前,上帝遣使通知世上唯一的
A university professor in India said: Calculated by scientific methods, a tree that normally grows for 50 years can cost about 200,000 U.S. dollars if it is calculated in money. Among them, the value of oxygen generated more than 30,000 US dollars to prevent air pollution for more than 60,000 US dollars. To prevent soil erosion and increase land fertility can create value of more than 30,000 US dollars, water conservation, water recycling to promote the value of about 40,000 US dollars, for birds and other animals to provide habitat environment value of more than 30,000 US dollars, in addition to this In addition, it produces about three thousand U.S. dollars worth of protein. Excludes the value of the trees themselves. So a tree, then ten, a hundred, a thousand, ten thousand? So I remembered the forest, remembered the boundless green kingdom. Green kingdom, is a mix of beautiful and colorful, fragrant Fei Philippines world. That contains infinite mystery in the big forest, exotic flowers, Yan Yanduan Yan, Jia Mu Zhen tree, competitive state, a vibrant, thriving scene. Since ancient times, many poets, painters, musicians have reveling in this charming green world, meditation reverie, flash of inspiration, passionate waves. According to legend, in ancient times, God found the human moral degeneration, the spirit of sinking, so use floods to punish. Before sending water, God sent to inform the only one in the world