简介:1.IntroductionChinahasbeentransforming.Sincethelate1970s,China’seconomyhasincreasedmanyfold,theproportionofChineselivinginurbanareashasmorethandoubled,lifeexpectancyhasincreasedby10years~1andthecountryhastransitionedfromthe'bicyclekingdom'totheworld’slargest'automarket'.~2Asaresult,Chinaisnowchallengedbythe'sideeffects'ofeco-