本字幕由TME AI技术生成
嗯
chinahasmoreplantsthananywhereelseinthetemperaryregionsoftheworld
infact
ithasalmosttwiceasmanykindsofplants
therearetheunitedstateswhichaboutthesamesizeandaboutthreetimesasmanyasthereareineurope
itsaveryverywriderfulwealthplplantsspeciesmanyofwhichcontcontributedtogardensandrotteddangeransandzziliasandforcittheistoourcultivatedplantslikesoybeans
嗯
thereasonthattherearesomanyplantsinchina
isthattheyvesurvivedtherearebetterifyougobackfifteenmillionyearsintothepast
youfindmuchthesamekindsofplants
anyanimalsintheunitedstates
europe
inchina
thetheyvesurvivedinthewarmtemperaturesubtroicalforest
thatstretchrightacrossthemiddleofchina
魔搭inthoseforestofchina
wehavesurvivingspecieslikeginkothemaidenhairtreewhichhasbeenincultivationineuropeandnorthamericasincetheseventeencentury
awonderfulrelatedinthoseforestsistheduvetreedividia
itscalledtheduvetree
becausetheflooterteringbracksthathangdownfromthelustersofflowers
looklikeduvvesflyinganother
exampleisthatdaonredwood
metaasqueirawhichwasdescribedasafossilinnineteenfortyonefortymillionyearsagowasthecommotstforesttreeandwesternnorthamericanowiscompletelywipedoutthere
butitsurvivesasaboutsixthousandindividualsinchina
啊啊啊
thewesternhalfofchinaintheinteriorofasiaconsistsofverytoughdesertsintheharshlandscapeofdebate
thereexistawholeseriesoferbsages
grasses
sauseria
primaroses
thatarefoundonlytheresomegroupsofplantslikesawseriaforexamplehavetheirbuddsprotectedagainstthelowtemperatures
theykeepongrowinganotherreason
thattherearesomanykindsofplantsinchina
isthatunliketheunitedstatesareeurope
theresrealtropicalforestinthesouth
tropicalrainforestinsouthernnewnon
andinthattropicalforesttherearemanyspeciesthatcomeupfromthesouth
theygivetheprovinceofyou
nonaboutasmanyspeciesonestateofchina
andeffectaboutasmanyspeciesasareintheunitedstatesincanada
combinedaboutfifteenthousandkindsofplans
anditsthemeltingofallofthoseregions
thesurvivalofspeciesfromthepast
andthecreationofmanynewspeciesbytheforcesofevolutioninthedifirsttopographyofchina
thatsproducedmuchvariety
sowonderfullypleasingandexcitingtoseechinaisdoingthebestthatitcantosaveitsbiologicaldiversityincludingitsfloroualheritage
chineseofficialsareveryconcernedwiththis
butitsverydifficulttomeettheneedsofonepointthreebillionpeopletoallowthem
toconsumemoretogivethemthingsthattheywanttheautomobilebeilsandotherimportsfromthewest
andstilltopreservethenaturallandscapeoreventhequality
theairofthewater
theyrefightingthatbattleofbattlewithwhichwereallfamiliarwell
buttheyregoingtohavetodoagreatdealmoreinthefutureasweallare