推荐回答(2个)
一、智者把功夫用在根基上,而不是面子上.只有根基扎实牢固的人,才会不惧任何风险和变故,生存下来.
胡杨是塔克拉马干沙漠中唯一的树木,千万年来,胡杨以坚强不屈的姿态挺立在生命的禁区里,为世人震憾而敬仰.
塔克拉马干沙漠每年的降雨量大约是 30毫米,而蒸发量是降雨量的100倍,达到3000毫米,这种环境,没有给任何植物生存的机会,但胡杨却在这里繁衍成荫.
每年夏季,沙漠中干涸的塔里木河都会重现生机,这是遥远的雪山融化后,形成了一年一度的洪水.利用这个机会,胡杨的种子和沙漠中其他植物种子立刻开始发芽生根.很快,河床上便会长出密密麻麻的各种小苗.植物们似乎懂得生机的短暂,所以,它们都会拼命地生长.就在其他植物生机勃勃、茁壮成长时,刚冒出头的胡杨树苗却停了下来,这让它们成为所有植物中最矮小最不起眼的个体.也许有人会对它们失望而担心,但是很快,另一种情形出现了.
洪水来得快,去得更快,用不了多久,河道便会重新干涸,那些躯体庞大的植物们因为突然断水,会纷纷干枯而死,而身材矮小的胡杨树苗却能存活下来.此时,如果向地下挖掘就会发现,每一株胡杨树苗的下面,都有着长得令人吃惊的根须.原来,当所有植物急切追求身躯的成长时,胡杨树苗却竭尽力气向下生长,在不断努力下,它们的根系很快就会达到身体的几十倍.于是,当干旱重新到来时,只有根系足够强大的胡杨,才能汲取到沙层深处的水源,从而存活下来.
二、求同存异,胡杨树“一树两叶”的生存策略,为我们人类破解特殊难题提供了最好的借鉴.
……
每一株胡杨的枝上都同时生长着柳树和杨树的叶子,所以胡杨还有一个名字叫异叶杨.
幼年胡杨树的叶子是细细的条形叶,随着年龄增长,叶片才逐渐分成宽、窄两种.大树的低处仍然是条形叶,只有头顶才是宽阔的掌形叶.也许人们会对这种“一树生两叶”的现象感觉奇怪,其实这种现象背后则是胡杨的另一种生存智慧.
塔克拉马干沙漠不但干旱,而且一年四季风沙肆虐,胡杨细小的条形叶,不但可以使水分消耗达到最低,而且细细的叶片也可以减少风沙打击的面积.对于那些生于树顶的掌形叶,它们由于能接受到光照,则可以尽可能多地进行光合作用,制造胡杨生长所需要的能量.所以,两种叶子形态虽然不同,却是为了一个相同的目标:生存.
三、放弃,是每一个生命应有的智慧.懂得放弃的生命,才可能绵延生息,历久不衰.
……
见过胡杨树的人都会认为,这种树是形态最奇特的树木.成年的胡杨,从来没有笔直伟岸的参天大树,或弯曲倾斜,或盘遒拧劲,个个都是奇形怪状.为什么成年的胡杨会长成奇怪的形状?研究发现,这也是适应环境的需要.
在胡杨漫长的生长岁月中,因为缺水,它们每时每刻都面临生和死的考验.当水份不足以维持整棵大树时,胡杨就会放弃身体的一部分以保证生命的延续.为了节省水份,它们会放弃正在健康生长的主干,于是整株树体的上半部分会全部枯死,而下半部分一条小树枝则会被当成新的主干,倾斜着继续生长.如果它们再次遭遇强烈的干旱时,则会再次放弃这条主干,重新选择新的树枝来承担生长的任务.
在无数次的放弃和选择中,胡杨变成了形态最奇特的树木、沙漠中最奇特的风景.
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