rainforests.docx
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rainforests.docx
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rainforests
Contents
1、Summary………………………………………………………………………….2
2、Introduction………………………………………………………………………..4
3、Theagebackgroundofrainforestsfaced……………………………………...6
4、ThelocationofTropicalrainforestsaroundtheworld………………………..7
5、Thelargestrainforestintheworld----BrazilianAmazon……………………..8
6、ThefunctionsofTropicalrainforests…………………………………………..9
7、Tropicalrainforestclimate……………………………………………………..10
8、TropicalRainforest’splants…………………………………………………….12
9、TropicalRainforest’sanimals…………………………………………………..14
10、TheimportantofProtectRainforests………………………………………….19
11、Conclusion………………………………………………………………………..20
12、Reference………………………………………………………………………..21
Summary
Therainforestsoftheworldarebeingdestroyedbyloggersanddevelopment.Manyspeciesfoundintherainforestareendangered.Oncetheydisappear,theyaregoneforever!
Theworld'srainforestsarecurrentlydisappearingatarateof6000acreseveryhour.Lifeinsidethewetandbustlingtropicalrainforestisfilledwithdanger.Whentheseforestsarecutdown,theplantsandanimalsthatliveintheforestsaredestroyed,andsomespeciesareatriskofbeingmadeextinct.Further,asthelarge-scaleharvestingoflumberfromtherainforestscontinues,thebalanceoftheearth'seco-systemisdisrupted.Accordingtothesituationmentionedabove,wemustpaymoreattentiontotheprotectionofrainforest.
Tropicalrainforestswerefoundbetweensouthlatitude10degreesandnorthlatitude10degrees.Specifically,mainlyinSouthAmerica'sAmazonbasin,Africa'sCongoRiverBasin,theGulfofGuinea,easternMadagascar,thesouthwestcoastoftheIndianpeninsulainAsia,theBayofBengalcoast,southoftheMalayPeninsula,westcoastofIndochina,thePhilippineIslandsandIran,theareasfromSumatratoNewGuineaislandofOceania,northeasternpartsofAustralia.
Tropicalrainforestsarelikeahugethroughputmachines,swallowalargenumberofglobalemissionsofcarbondioxide(CO2)andcreatealotofoxygeneveryyear,whichalsolikeahugepump,drawingalargenumberofmoisturefromthesoil,andthenthroughtranspiration,thewaterisreleasedintotheair.TheTropicalrainforestshaveplayedanimportantroleintheworld,whichcankeepthebalanceoftheearth'seco-systemandproduceoxygenandcleantheatmospheretohelpusbreathe.
Thetropicalrainforestisahugetreasurehouseofplants,whichhasawidevarietyofplantspecies.Accordingtostatistics,thereareaboutbillionsofspeciesofplantsliveintherainforest,morethananywhereelseonearth.Scientistsdonotyetknowallthespeciesthataretobefoundinatropicalrainforestandnewonesarestillbeingdiscovered.
Thetropicalrainforestisalsoahugetreasurehouseofanimals,whichisthehometoover50%ofalltheanimalsintheworld.Therearemillionsofdifferentspeciesofanimalsintheworld'srainforests.Theremaybe15,000differentanimalspeciesinasingleacreoflowlandrainforest.Whilemanyoftheanimalsoftherainforestarethreatenedorendangeredspeciesbecausepeoplearecuttingdownmoreoftherainforeststheylivein.
Throughthisresearch,wecanhaveawholeunderstandingforthetropicalrainforest.Weknowthemainlocationofrainforestaroundtheworldandthefunctionofrainforestforhumansandenvironment;Inaddition,wecanknowtherichvarietyplantsandanimalsspeciesinrainforest,sothatcomeupwithsomeeffectivemeasurestoprotectandsavethevaluableandendangeredspecies.Thetropicalrainforestiscloselyrelatedtotheclimateoftheworld,ifitisdestroyed,theglobalclimatewillhaveaseriousinfluence.Soeverypeopleinoursocietyshouldmakegreatcontributionstoprotectthetropicalrainforest.
Introduction
Thetropicalrainforestisahugetreasurehouseofplants,whichhasawidevarietyofplantspeciesanditisalsoahugetreasurehouseofanimals,whichisthehometoover50%ofalltheanimalsintheworld.Therearemillionsofdifferentspeciesofanimalsandplantsintheworld'srainforests.Theremaybe15,000differentanimalspeciesinasingleacreoflowlandrainforest.Whilemanyoftheanimalsandplantsoftherainforestarethreatenedorendangeredspeciesbecausepeoplearecuttingdownmoreoftherainforeststheylivein.Nowlifeinsidethewetandbustlingtropicalrainforestisfilledwithdanger.SuchasCougarsandpumasstandreadytopounce;snakessliverunseenbetweenfeettoadministeralethalbite;whileexoticbirdschirpoverhead.Ananimalmustbebothsmartandstrongtosurviveinthisenvironment.Theintensecompetitionfromotherspeciesmakesrainforestspeciesthemostinteresting.
Therainforestsoftheworldarebeingdestroyedbyloggersanddevelopment.Manyspeciesfoundintherainforestareendangered.Oncetheydisappear,theyaregoneforever!
Theworld'srainforestsarecurrentlydisappearingatarateof6000acreseveryhour(thisisabout4000footballfieldsperhour).Whentheseforestsarecutdown,theplantsandanimalsthatliveintheforestsaredestroyed,andsomespeciesareatriskofbeingmadeextinct.Further,asthelarge-scaleharvestingoflumberfromtherainforestscontinues,thebalanceoftheearth'seco-systemisdisrupted.Weneedtherainforeststoproduceoxygenandcleantheatmospheretohelpusbreathe.Wealsoknowthattheearth'sclimatecanbeaffected,aswellasthewatercycle.Rainforestsalsoprovideuswithmanyvaluablemedicinalplants,andmaybeasourceofacurefromsomedeadlydiseases.
Inconsiderationofthementionedsituationabove,Imakethisresearchtomakepeopleknowtheimportanceforhumanbeingsandtheurgentofprotectingtherainforesttoappealtomoreandmorepeopletakepartintheactionsofsaverainforestandourhomeland.
TropicalRainforests
Theagebackgroundofrainforestsfaced
Lifeinsidethewetandbustlingtropicalrainforestisfilledwithdanger.Cougarsandpumasstandreadytopounce;snakessliverunseenbetweenfeettoadministeralethalbite;whileexoticbirdschirpoverhead.Ananimalmustbebothsmartandstrongtosurviveinthisenvironment.Theintensecompetitionfromotherspeciesmakesrainforestspeciesthemostinteresting.
Therainforestsoftheworldarebeingdestroyedbyloggersanddevelopment.Manyspeciesfoundintherainforestareendangered.Oncetheydisappear,theyaregoneforever!
Theworld'srainforestsarecurrentlydisappearingatarateof6000acreseveryhour(thisisabout4000footballfieldsperhour).Whentheseforestsarecutdown,theplantsandanimalsthatliveintheforestsaredestroyed,andsomespeciesareatriskofbeingmadeextinct.Further,asthelarge-scaleharvestingoflumberfromtherainforestscontinues,thebalanceoftheearth'seco-systemisdisrupted.Weneedtherainforeststoproduceoxygenandcleantheatmospheretohelpusbreathe.Wealsoknowthattheearth'sclimatecanbeaffected,aswellasthewatercycle.Rainforestsalsoprovideuswithmanyvaluablemedicinalplants,andmaybeasourceofacurefromsomedeadlydiseases.
Forestscanbemanagedeffectivelywithoutendangeringrarespeciesofplantsandanimalsandwithoutriskingglobalenvironmentaldamage.Companiesthatharvesttimbershouldnotbeallowedto"clearcut"largeareasofforestandshouldberequiredtoplantnewtreesaftertheycutoldtreesdown.Governmentsshouldcreatelargeparksandreserveswherehuntingandloggingarenotallowed.Asaworldcommunity,wemustbecarefulnottodestroytheresourcesthatpeoplewillneedinthefuture.
ThelocationofTropicalrainforestsaroundtheworld
Tropicalrainforestswerefoundbetweensouthlatitude10degreesandnorthlatitude10degrees.Specifically,mainlyinSouthAmerica'sAmazonbasin,Africa'sCongoRiverBasin,theGulfofGuinea,easternMadagascar,thesouthwestcoastoftheIndianpeninsulainAsia,theBayofBengalcoast,southoftheMalayPeninsula,westcoastofIndochina,thePhilippineIslandsandIran,theareasfromSumatratoNewGuineaislandofOceania,northeasternpartsofAustralia.
TheAmazonjungleistheworld'slargesttropicalrainforest.TheforestcoversthebasinoftheAmazon,theworld'ssecondlongestriver.TheAmazonishometothegreatestvarietyofplantsandanimalsonEarth.A1/5oftheentireworld'splantsandbirdsandabout1/10ofallmammalspeciesarefoundthere
CentralAfricaholdstheworld'ssecondlargestrainforest.Tothesoutheast,thelargeislandofMadagascarwasonceintensivelyforested,butnowmuchofitisgone.Africacontainsareasofhighcloudforest,mangroveswampsandfloodedforests.TheislandofMadagascarishometomanyuniqueplantsandanimalsnotfoundanywhereelse.
TherainforestsofAsiastretchfromIndiaandBurmainthewesttoMalaysiaandtheislandsofJavaandBorneointheeast.Bangladeshhasthelargestareaofmangroveforestsintheworld.InSoutheastAsiatheclimateishotandhumidallyearround.InthemainlandAsiaithasasubtropicalclimatewithtorrentialmonsoonrainsfollowedbyadrierperiod.
Australia,NewZealandandtheislandofNewGuineaformedpartofrainforests,whichareisolatedfromtherestoftheworld.
Thelargestrainforestintheworld----BrazilianAmazon
AmazonRiverbasinisLocatedinthenorthernSouthAmerica,whichhasthelargesttropicalrainforest,anareaof6,000,000squarekilometers(2,300,000squaremiles),covering40%ofthetotalareaofBrazil,northtoGuyanaPlateau,westtoAndes,southtotheBrazilianCentralPlateauandeasttotheAtlanticOcean.Amazonistheworld'slargestriverbasin;therainforestextendsfromtheeastcoastofAtlantic(forestwide320km)tothelowlandsandfoot
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