%0 Journal Article %T someaspectsofbiologicaldiversityinfreshwaterecosystems %A chen %A yiyu %A cui %A yibo %J 生物多样性 %D 1993 %X ?comparedwithterrestialandmarineecosystems,freshwaterecosystems,includingriversandlakes,arerelativelyclosed,withlowfeed-backcapacityandstability.however,freshwaternessisoneofthemajorresourcesthathumanbeingsliveon.inthepastdecades,duetoerosioncausedbydeforestation,reductioninlakeareacausedbydrainagetocreatarableland,damagetofishresourcescausedbyoverexploitationandinterceptionoflakesfromrivers,pollutioncausedbydischargeofindustrialwastewater,andeutrophicationcausedbydischargeofurbansewage,thenaturalfreshwaterbiodiversityhasbeendamagedtovariousextents,andreductioninbiodiversityhascuaseddamagetothestructureandfuctioningofthefreshwaterecosystems,decreasingtheavailabilityofthisrenewableresource.thispaperdiscussessomeaspectsofbiologicaldiversityinchinesefreshwaterecosystemsthatareofprimeimportanceforresearch. %K biodiversity %K freshwaterecosystems %K fishes %K lakes %U http://www.biodiversity-science.net/CN/abstract/abstract9724.shtml