武汉曾经是中国闻名的“四大火炉”之一，但中国气象局最新研究成果表明，武汉已摘掉了这顶戴了很久的“热帽子”，如今在省会城市、直辖市“炎热排行榜”上，退至第六名。

Wuhan once was China's famous“Four big furnace”of，But the latest research results show that the China meteorological administration，Wuhan has removed the top wear for a very long time“Heat hat”，Nowadays in the capital city、Municipality directly under the“Hot list”on，Back to the sixth。

　　全球都在变暖，实际上，并非武汉不热了，而是变热的速度比不少城市慢，其中有大气候变化的因素，城市的绿化、科学规划也立下了汗马功劳：花草树木“拽”住了武汉升温的脚步，六大风道为主城区“吹电扇”降温。

In the global warming，In fact，Wuhan is not not hot，But hot faster than many city slow，There are climatic change factors，City's green、Scientific planning also set in：Plants and trees“ye”Live the wuhan heating steps，Six air duct is given priority to city“Blow fan”cooling。

　　根据中国气象局国家气候中心最新研究资料，近31年来的气象数据表明，我国省会城市或直辖市的夏季（6-8月）炎热度前十名排行榜上，武汉退出了前五名，位列第六，排在重庆、福州、杭州、南昌和长沙之后，位列西安、南京、合肥、南宁之前。

According to the China meteorological administration the national climate center latest research material，Nearly 31 years of meteorological data shows，Our country capital city or municipalities directly under the central government shall summer（6-8 months）The list of the top ten hot degrees，Wuhan withdrew from the top five，Ranked sixth，Row in chongqing、fuzhou、hangzhou、Nanchang after and changsha，Xian in the、nanjing、hefei、Nanning before。

　　关于中国的“四大火炉”，有四种说法。第一种说法是武汉、南京、重庆、南昌，这一说法还被写入过地理教科书；第二种是武汉、南京、重庆、长沙；第三种是重庆、武汉、南京、济南，第四种是长沙、武汉、重庆、杭州，但不管哪种组合，武汉总是位列其中。

About China“Four big furnace”，There are four statement。The first is that wuhan、nanjing、chongqing、nanchang，The statement also is written into a geographical textbooks；The second is wuhan、nanjing、chongqing、changsha；The third kind is chongqing、wuhan、nanjing、jinan，A fourth is changsha、wuhan、chongqing、hangzhou，But no matter what kind of combination，Wuhan always among them。

　　武汉区域气候中心主任刘敏昨日接受本报记者采访时说，“火炉”是民间说法，并没有科学定义和标准。传统意义上的“火炉”城市，集中在长江流域，且是大型城市，夏季受“造热高手”副热带高压控制，高温高湿天气多，使人闷热难耐。近年随着整体气候形势的变化，各个城市的炎热程度也有了变化。这次最新排名虽然有了沿海的福州、西北的西安等城市入选，但还是以长江流域城市居多。

Wuhan area, director of the center for climate LiuMin yesterday to accept our newspaper reporter to interview，“furnace”Is a folk saying，There is no scientific definition and standard。In the traditional sense“furnace”city，Concentrated in the Yangtze river basin，And is a large city，By summer“Made hot superior”The subtropical high pressure control，High temperature high wet weather more，Make the person quite muggy。In recent years, along with the overall climate changes，Each city heat degree also have changed。The latest rankings even though there is a coastal fuzhou、Northwest xian and other cities in，But by the Yangtze river basin in the city。

　　武汉市气象台台长刘火胜表示，判断一个城市是否炎热，需要考虑多种因素，比如最高气温、平均气温、气温日较差（指一天中气温最高值与最低值之差），空气相对湿度等。之前大家说的“三大火炉”、“四大火炉”，多是从个人感受上说的，这次国家气象部门综合分析了多面数据，列出排行，有较高科学性。

Wuhan city meteorological station director liu fire - said，Judge a city is hot，Need to consider many factors，Such as the highest temperature、Average temperature、Daily range of temperature（A day of high temperature with the difference between the lowest），Air relative humidity and so on。You said before“Three big furnace”、“Four big furnace”，From personal experience on said，The national meteorological department comprehensive analysis the surface data，List ranking，Have a higher scientific。

福州、杭州变热比武汉快 fuzhou、Hangzhou hot than wuhan fast

　　如今全球都在暖，武汉的炎热排名却在退步，难道没有过去热了？有市民对此很不解。

Now in the global warming，Wuhan hot ranking but in the setback，Didn't the past hot？Have people are puzzled。

　　湖北省气象局研究员陈正洪说，全球都在变暖，但变暖的幅度有区域特点，这与大气运动的规律发生了变化有关。近几十年来，华东的福建、浙江等地，明显变得更炎热，因此，福州、杭州从“火炉”之外，跃升至炎热排行榜的第二、第三位，超过武汉。

Hubei province meteorological bureau ChenZhengHong researchers said，In the global warming，But warming amplitude have regional characteristics，This and the rule of the motion of the atmosphere changed relevant。In recent decades，East China's fujian、Zhejiang, etc，Obviously become more hot，therefore，fuzhou、Hangzhou from“furnace”outside，Jumped to the second hot list、The third，More than wuhan。

　　华北的石家庄、北京、西安等城市，近年增温幅度都高于武汉，一个可能的原因是，夏季惯常在长江中下游地区逞威的西太平洋(601099,股吧)副热带高压，如今喜欢“跳”到北方，使北方增温较快。

North China shijiazhuang、Beijing、Xian city such as，In recent years, constructive amplitude is higher than the wuhan，A possible reason is，Summer customary in the middle and lower reaches of Yangtze river according to wei of the western Pacific(601099,guba)Subtropical high，Now like“jump”To the north，Make the north rapid warming。

　　武汉区域气候中心数据也显示，近50年来，武汉虽在变热，但有些城市变热的速度比武汉快。比如说，上世纪60年代，武汉夏季的平均最高气温和平均气温分别为32.2℃、 27.6℃，到本世纪头十年，这三项数值分别上升了0.2℃ 和0.9℃。而杭州的这两项数值，本世纪头十年与上世纪六十年代相比，分别增加了1.1℃和1℃，达到32.8℃和28.1℃，福州则分别上升了1.4℃和1.2℃，达到33.4℃和28.5℃，都超过了武汉。

Wuhan regional climate center data also show，Nearly 50 years，Wuhan is in hot，But some city hot faster than wuhan fast。For example，In the 1960 s，Wuhan summer mean maximum temperature and mean temperature 32.2 ℃, respectively、 27.6 ℃，To this decade，The three numerical respectively increased by 0.2 ℃ and 0.9 ℃。And hangzhou this two numerical，In the first ten years of those of the 1960 s，Increased 1.1 ℃ and 1 ℃，32.8 ℃ and 28.1 ℃，Fuzhou respectively increased by 1.4 ℃ and 1.2 ℃，33.4 ℃ and 28.5 ℃，Is more than the wuhan。

绿化“拽”住武汉升温脚步 greening“ye”Live wuhan heating steps

　　陈正洪说， 武汉夏季平均气温升幅减缓，除了大气候的背景，绿化也功不可没。

ChenZhengHong said， Wuhan summer mean temperature increase slow，In addition to climatic background，Greening has also contributed。

　　1996年年初的市“两会”上，华中科技大学同济医学院曾仁端教授与37位市人大代表联名提出议案，希望武汉大搞绿化，缓解主城区热岛效应，为武汉降温。该议案被列为市人大四大议案之一。市政府随即召开专题会议，决定增加当年全市新增绿地面积。从此，武汉绿化规模逐年增大。

At the beginning of 1996, the city“lianghui”on，Central China university of science and technology, professor of tongji medical college CengRen end with 37 municipal people's congress representative joint legislation，Hope wuhan big make afforest，Alleviate urban heat island effect，For wuhan cooling。The bill is listed as one of the municipal people's congress four big bill。The municipal government held a special meeting immediately，The city decided to increase the new green area。From now on，Wuhan green scale has been increasing year by year。

　　市园林局统计，1997年至2011年，我市建成区绿地面积由5270公顷，增加到了16347公顷，14年间增加了两倍多。卫星监测显示，武汉建成区绿地率由26.03%，增加到了32.28%。

City bureau of parks and woods statistics，From 1997 to 2011，City built up area green area of 5270 hectares，Increased to 16347 hectares，14 years more than tripled。Satellite monitoring shows that，Wuhan built up area rate by 26.03%，Increased to 32.28%。

　　市园林局绿化处负责人余刘琦说，这意味着从空中往下看，武汉有三分之一的陆地已经被绿色植物占领。绿地面积大量增加，使原先主城区不少“热岛”，已变成了公园、小游园等“凉岛”。

City bureau of parks and woods LuHuaChu person in charge YuLiuQi said，This means looking down from the sky，Wuhan is one third of the land has been green plant occupied。A large increase in green area，Make the original many main urban areas“Heat island”，Has become the park、Small in the garden, etc“Cool island”。

　　苏联科学家曾测算，一公顷绿地一年可蒸发4500-7500吨水，一昼夜蒸发水分的调温效果为1.25亿大卡热量。华中科技大学能源学院制冷低温工程专家舒水明教授据此推算出，500台6匹的空调制冷20小时，可降低1.25亿大卡热量。这意味着，我市14年间新增的11077公顷绿地，夏季每昼夜给武汉自然环境减少的热量，相当于让550多万台6匹空调工作20个小时！

Soviet scientists have measure，One hectare green one year may evaporation 4500-7500 tons of water，One day &night evaporation water temperature effect for 125 million kilocalorie quantity of heat。Central China university of science and technology institute of energy refrigeration cryogenic engineering experts ShuShuiMing professor calculated accordingly，500 table 6 horse air conditioning refrigeration 20 hours，Can reduce 125 million calories quantity of heat。This means that，The 14 years of the new 11077 hectares of green space，Every summer day and night to wuhan natural environment reduce quantity of heat，Equivalent to let more than 550 table 6 horse air conditioning work 20 hours！

建“超级电扇”给城市降温 built“Super fan”To cool city

　　武汉市气象台台长刘火胜分析说，我市通过规划控制城市“风道”，也起到了缓解城市热岛效应的作用。

Wuhan city meteorological station director liu fire - analysis said，Our city through the planning control city“duct”，Also play a alleviate urban heat island effect of the function。

　　专家曾作过一项“武汉城市气候改善与宜居环境优化”的研究，结果显示，城市热岛效应使武汉市主城区平均气温比远城区高出1.8℃-2℃，夏季主城区局部地区气温有时甚至比远城区高5.9℃。这项研究，为我市制定城市总体规划提供了参考。

Experts have done a“Wuhan urban climate improvement and livable environment optimization”research，Results show that，Urban heat island effect in wuhan city average temperature 1.8 ℃ higher than far city - 2 ℃，Summer in local temperature sometimes even than far city high 5.9 ℃。The study，For the overall urban planning formulated to provide reference。

　　2009年11月，《武汉城市总体规划(2009-2020年)》，被国际城市与区域规划师学会授予“全球杰出贡献奖”。这是我国城市总体规划在国际上首次获得的最高奖项。

In November 2009，《Wuhan urban overall planning(2009-2020)》，Be international city and regional planner to award“Global outstanding contribution award”。This is our country the overall urban planning in the world won for the first time the highest award。

　　市规划研究院设计二所副总规划师汪云说，《总规》获此殊荣的原因之一，就是为城市划出6条生态走廊作为“风道”，能有效降低城市热岛效应，分别是：府河、武湖、大东湖、汤逊湖、青菱湖、后官湖水系等6大放射状“绿扇”，与长江天然“风廊”一道，成为我市的主导“风道”。

City planning and design institute which two deputy chief planner WangYun said，《Total gauge》One of the reasons to win the award，For the city is a article 6 ecological corridor as“duct”，Can effectively reduce the urban heat island effect，Respectively is：FuHe、WuHu、Big east lake、ShangXunHu、Green current lake、HouGuanHu drainage six major radial“Green fan”，And Yangtze river natural“The wind was”a，Become the dominant“duct”。

　　“风道”使市郊广袤的绿地与主城区绿地连通，不仅使新鲜氧气顺着风道源源输送到主城区，还能使气温较高的主城区与气温较低的市郊，实现热量的自然循环和交换，从而缓解主城区的热岛效应。有专家形象地将它比喻为给主城区“吹电扇”。（记者符樱 胡蝶 明眺生 夏琼 通讯员王凯 赵旋 金晶）

“duct”Make suburban vast green space and urban green space connected，Not only make fresh oxygen from the air duct is conveyed to the main urban areas，Still can make the temperature of main urban areas and high temperature low suburb，To realize the natural cycle of heat and exchange，So as to alleviate the urban heat island effect。Experts of the image of the main urban areas to compare to it“Blow fan”。（Reporter FuYing HuDie exclusive Ming born xia qiong correspondent wang ZhaoXuan jin jing）