病情描述(女,) 植树对于环境的好处:首先,植树造林为人们的生活和工农业生产提供了许多有用的原料和用品。如在吃的方面,有各种香甜鲜美的水果;有芳香四溢的茶叶;还有滋补身体的冬青树上的女贞子,鲜美可口、清肺平喘的银杏等珍贵药材。在用的方面,搞建筑,开采煤炭,交通运输,制造车辆、船舶、尺机,修建桥梁、码头,造纸等都需要木材。比如,修建1000平方米混合结构的房屋需要木材130立方米;开采1000吨煤,需要22立方米的坑木。在农业生产中,我们使用的大量农具也离不开木材。其次,植树造林可为人类提供氧气,净化空气,美化环境,有利于生态环境的保护。我们知道人每天吸入氧气,吸出二氧化碳,树正好相反,它的叶子在阳光照耀下不断进行光合作用――吸入二氧化碳,释放出氧气。据统计,一亩树林每天能吸收67公斤二氧化碳,释放出49公斤氧气,足可供65个成年人呼吸用。由于森林具有遮荫避风、树木呼吸和蒸腾作用,因此有成片树林的地方冬暖夏凉,可以避暑疗养。树木能粘附空气中的尘埃而使空气清洁、新鲜。科学测试表明:一亩树林一个月可吸收有毒气体二氧化硫4公斤,一年可吸收尘埃20吨~60吨。此外,,树木在呼吸过程中,产生大量特殊空气,能治疗一些疾病,对人体有良好作用,比如,桦树、杨树、桧树等能分泌出植物杂菌素,可以杀死白喉、肺结核、伤寒、痢疾等病原菌。道路两旁栽树可以降低噪音,多种多样的树型、花果和翠绿的枝叶可以美化环境,为人们学习、工作和生活提供理想化环境。所以,让我们多多种树,保护我们的大家园吧! ...
e8a5cf2个回答2009-02-02 11:17
病情分析
First,theafforestationhasprovidedmanyusefulrawmaterialsandthethingforpeopleslifeandtheindustryandagricultureproduction.Ifiseatingtheaspect,haseachkindoffragranttastyfruit;Hasteawhichfragrantfouroverflow;Alsohasonthenutritiousbodysyauponsfruitoftheglossyprivet,tastydelicious,theclearlungbreathesheavilyevenlygingkoandsoonpreciousrawmaterialformedicine.Isusingtheaspect,doestheconstruction,theminingcoal,thetransportation,makesthevehicles,theships,therulermachine,buildsabridge,thewharf,thepapermakingandsoonneedsthelumber.Forinstance,constructs1000squaremetercompositestructuresthehousetoneedthelumber130cubicmeters;Mines1000tonscoals,needs22cubicmetersminetimbers.Intheagriculturalproduction,themassivefarmtoolswhichweusealsocannotleavethelumber.Next,theafforestationmayprovidetheoxygenforthehumanity,thescavengingair,thebeautifiedenvironment,isadvantageousintheecologicalenvironmentprotection.Weknowthepersoneverydayoxygenintakejustright,theaspirationcarbondioxide,thetreeopposite,underitsleafinthesunlightshinescarriesonthephotosynthesis--inspirationcarbondioxideunceasingly,releasestheoxygen.StatisticsindicatedthatChineseacrewoodscanabsorb67kilogramscarbondioxideeveryday,releases49kilogramsoxygen,mayfor65adultsfullytobreatheuses.Becausetheforesthasprovidesshadetakesshelterfromwind,thetreesbreathandthetranspiration,thereforehastheLargeexpanseofwoodsplacetobewarminwinterandcoolinsummer,maythesummervacationconvalesce.Thetreescanstickintheairthedusttocausetheairtobeclean,tobefresh.Thesciencetestindicated:Chineseacrewoodsonemonthmayabsorbthenoxiousgassulphurdioxide4kilograms,oneyearmayabsorbthedust20tons~60tons.Inaddition,thetreesinthebreathprocess,producethemassivespecialair,cantreatsomediseases,hasthegoodfunctiontothehumanbody,forinstance,thebirchtree,thepoplartree,theChinesejunipertreeandsooncansecretetheplantmixedrhzomorph,maykilldiseasegermsandsoondiphtheria,pulmonarytuberculosis,typhus,dysentery.Bothsidesthepathplantstreesmayreducethenoise,manyandvariedtree,thefruitandflowersandtheParisgreenbranchesandleavesmaybeautifytheenvironment,studies,theworkandthelifeforthepeopleprovidestheidealizedenvironment.Therefore,letsusverymuchplanttrees,protectsourbighomeland!
2009-02-02 11:20
病情分析
久久健康网呼吸内科疾病库http://jb.9939.com/dis/139010/为您收录最全最新的肺结核资讯:肺结核概念,肺结核的症状,肺结核的治疗,肺结核的早期症状,肺结核的传染,肺结核的治疗,肺结核的预防,肺结核纤维化,治疗肺结核的专科医院,中药治疗肺结核,肺结核的食疗方,治疗肺结核的药物,小儿肺结核……您还可以在线咨询我们的呼吸内科专家对肺结核进行详细问询。祝您健康!
2011-05-21 19:08