今年夏天北京的一场暴雨 造成几乎全城交通瘫痪,上海一场大风大雨造成严重交通阻塞和 大范围停电事故,就暴露我们城市建设和管理方面问题不轻。 三是房地产“泡沫化”。现在许多城市建房太快太多,占用大量银行资金,如果严重供大于求,或价格超过市民承受能力,就 会出现大量房屋空置,酿成经济危机。经验证明,由房地产泡沫 化引起的经济危机,需要好多年才能缓过劲来。 四是城市“废墟化”。可能造成这种后果的原因有二:一是上面提到的房地产严重供过于求,出现大批楼宇空置;二是本世纪 中我国人口将出现的下降趋势。根据我国人口政策的设想,达到 17 亿最高峰以后,总人口将逐渐下降,最终达到7 亿左右的理想 规模。那么今天搞了那么多大规模的城市,将来会不会出现有一 天没有那么多人去居住? href=“http://www.bdfqy.com/ziranzuowen/yezuowen/”target=“_blank” class=“keylink”>夜RecentChina city changes development rapid report, said China's2003 city level has reached 40.5%, exceeding originalplan index, also said Chinahas entered cityacceleratedevelopment period", evensome reports presentcity ofthe great leap forward". campaign,drive right?Good? bringany negative effects? According originalplan, our country city changes reach35% 2005,2010 reach4042%. otherwords, our country already ahead originalcity. Authorities presented century,our country city changes level achieve65%, reached75%. ourcity, pacetoo fast, too fast. Britishcity changelevel increased from 26% 90years, France from 25.5% UnitedStates increased from 25.7% 120years. We increasefrom 28% 10years only, do speed,speed, around 2020 can reach 60%, before 2035 can reach about 75%. otherwords, we only spent half timeBritain, France UnitedStates Americaalmost one third time,through sameprocess Questiontwo ourcountry citychanges levelset developedcountries, reachmore than 75%. Want realizeindustrialization, modernization, contractible ruraldifference, promote socialeconomy, certaincity level truthbefore 80time; our country city changes standardlow, remainshigh enough, need citylevel should same?China's national conditions datehas been alldeveloped countries differ greatly, Chinese city lookup twenty-firstCentury nineteenthCentury twentieth Century City, standardshould somedifference? verybright. toomuch. 1300000000 population,than currentNorth American, European Japanesepopulations combined; two relativelypoor use landresources. China 's land area 9600000square kilometres, scientificconditions humanhabitation plateau,mountains, Gobi, desert aridarea accounted morethan 2/3, can use landunder currentpopulation alreadyoverburdened, conditions areathan any developed country difference; three seriousshortage basicresources, freshwater averageper capita world1/4, farmland averageper capita lessthan 1/3. developedcountry difference citypopulation resourcesconsumption fargreater than sameamount ruralpopulation, we city,whether China should take basicresources reasonableurban ruralpopulation proportion problem.Since our country basic resource state developedcountries, our city why level likethem tall? wehave 2020,60% citypopulation 20thcentury population 1700000000, citypopulation hugecity population, how much water, how much land, how much energy, food, housing, how much traffic facilities morefocused large-scale,socialization higherproduction efficiency, mean citychanges rate taller, means higherdegree. lasttwenty thirtyyears, technology,especially networktechnology certainnew changes. Now more morepeople centralcity awayfrom home officeplace even, can also obtain information, also can have meeting,also can trade, also can accomplish many things, alsogreatly save time, reduce logistics.Plus increasinglyhigh quality requirements, haveserious pollution somedeveloped countries largecrowd began smallcity city,suburbs downtowndistrict twenty-firstCentury we advance changewhen, should consider newfactors, avoid excessive