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1、LossofBiodiversityBiodiversityremainsapreoccupation.Thisreportaimstointroducethedefinitionofbiologicaldiversityandit’srelationwithhumanbeings,anddescribethedetrimentalimpactontheenvironmentcausedbythereductionofbiodiversity,withsomemeasuresattachedforbiodive
2、rsityconservation.Whatisthebiodiversity?Ecologicallyspeaking,asitsnamesuggests,itreferstothesumofallkindsoforganismontheearth.It’snotjustamatteroftigersandwhales,orbutterfliesandtrees,butamatterofbacteria,virus,fungus(真菌）andtheotherknownorunknownspecies.Biod
3、iversityandtheentirehumanracearecloselyrelated.It’scommonsensethatnowadaystheworld’sbiodiversityisdecreasingrapidlyandthisdecreasehasbadlyaffectedtheearthhealth.Withouttrees,wewon’beabletosurvive.Withoutthenaturalmicrobial(微生物的)friends,therewouldbehundredsof
4、billiontonsofwasteleftintheworldwhichwoulddefinitelycontaminatethelandaroundus.Wecreateautomobile,weinventaircraft,soweneedenergy.Wehavelargecoalreserves,sowemakepower.Iftherewerenoresourcesonthisplanet,neitherwouldbeindustrialrevolution.Lotsofpeopleknowthat
5、thereductionofbiodiversitywillbringadverseeffects.Butfewisclearaboutthefullcourseoftheinteractionbetweenthem.Inmyopinion,ifwedon’ttakestepstoprotectthespeciesaroundus,theworldwillsufferagreatdisaster.Weallknowtheimportanceoftressfortheearthandmankind.Whenwer
6、emovetheforest,itisnotjustthetreesthatgo.Theentireecosystemwillfallapart,withdire(可怕的)consequencesforallofus.Theanalysisisasfollows:First,forestishometobirdsandtheotheranimals,sodeforestationwilldestructtheirhabitats.Second,alargenumberofspecieswillbeextinct
7、sincetheirhabitatswouldnolongerexist.Third,asthesuccessiveextinctionofthesespecies,theecologicalbalancewillbebroken.Someabnormalorganismthathasstrongadaptabilityandvitality(生命力)suchasratsandgrasshoppers(农业害虫)willbethrivebecausetheywouldhavenonaturalenemies.T
8、henallthecropsinthefieldswillfallvictimtolocusts(蝗虫)andpeoplewillbecrazy.Andthen,thewholeworldwillbeinchaos.Perhapstheimaginationsome-whatexaggerated.Butifwedon’tmakeupourmindstofindaapproachtot
