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干旱区地理 ›› 2019, Vol. 42 ›› Issue (3): 509-516.doi: 10.12118/j.issn.1000-6060.2019.03.06

• 气候与水文 • 上一篇    下一篇

城市化及湖泊湿地修复对银川市气候影响初探

谭华1,2,智海1,李艳春2,陈楠2,杨亚丽2   

  1. (1 南京信息工程大学,江苏南京 2100442 宁夏气象防灾减灾重点实验室,宁夏 银川 750002
  • 收稿日期:2018-12-09 修回日期:2019-03-15 出版日期:2019-05-25 发布日期:2019-05-18
  • 通讯作者: 李艳春,女,本科,正研级高级工程师,主要从事气候分析及研究工作. E-mail:nxlyc@163.com
  • 作者简介:谭华(1984-),男,湖南怀化人,硕士研究生,助理工程师,主要从事气候分析及研究工作. E-mail:271055551@qq.com
  • 基金资助:
    2015年自治区科技惠民项目(2015KJHM34);中国气象局旱区特色农业气象灾害监测预警与风险管理重点实验室指令性项目(气候贫困与治理预研究)资助

Influence of urbanization and lake wetland restoration on the climate evolution in Yinchuan City

TAN Hua1,2, ZHI Hai1, LI Yanchun2, CHEN Nan2, YANG Yali2   

  1. (1 Nanjing University of Information Science & Technology,Nanjing 210044,Jiangsu,China;  2 Key Laboratory of Meteorological Disaster Preventing and Reducing in Ningxia,Yinchuan 750002,Ningxia,China )  

  • Received:2018-12-09 Revised:2019-03-15 Online:2019-05-25 Published:2019-05-18

摘要: 利用银川市国家基准气象站及受人类活动影响较少的麻黄山气象站19612015年气温、降水及相对湿度资料,对比分析了城市化及湖泊湿地修复对银川市城市气候演变的影响。结果表明:随着银川市城市化规模的不断扩大,整个城市的暖干化程度日趋严重,城市周边湖泊湿地的修复和重建对银川市大范围气候的调节作用明显弱于城市化的影响。具体表现为:自1961年以来,银川站年平均气温上升速率为0.46 ℃·(10 a) -1,比麻黄山站快0.16 ℃·(10 a)-1,银川市城市化使城市内年平均气温较对比站麻黄山站升高1.1 ℃,特别是20012015年上升了0.8 ℃,20112015年上升了0.5 ℃,其中冬季上升快,夏季相对稳定,气温年较差减小;从1975年以来,银川市年平均空气相对湿度下降了11.2 %

关键词: 城市化, 湖泊湿地, 银川市, 气候变化

Abstract: In recent years,restoration and reconstruction work has been carry out for degraded ecosystem of Yinchuan City,Ningxia Province,China surrounding ecological environment construction and the needs of the development of the circular economy.The area of lakes and wetland in Yinchuan City increased from 1.1 ten thousand hectares to 4.7 ten thousand hectares just between 1981 and 2010.The lakes wetland effectively improved the urban ecological environment.And the main factors influencing the urban climate change including topography,the climate background that determined by location,the changes of meteorological elements caused by global climate change and the changes of urbanization and lake wetland,etc.But so far,the assessment about the impact of the evolution of urbanization and lakes wetland to climate change has been not carry out in Yinchuan.Analysis of the impact of urbanization and the restoration of lakes wetland to the climate evolution of Yinchuan City using the date including temperature,precipitation and relative humidity about of Yinchuaun and Mahuang Mountain weather station during 19612015.The results show that with the rapid process of urbanization of Yinchuan,the degree of climate warming and drying was aggravated.The effect of restoration and reconstruction of lake and wetland significantly was weaker than the impact of the urbanization on the climate.Since 1961,the rising rate of annual average temperature of Yinchuan station is 0.46 per 10 years,faster than Mahuang Mountain stands 0.16 per 10 years,Compared with Mahuang Mountain station,annual average temperature of the Yinchuan rise by 1.1 .Especially increased by 0.8 and 0.5 in recent 15 years and 5 years respectively,annual average temperature e rises quickly in winter and is relatively stable in summer,annual temperature range decreases.About the extreme temperature,the rising rate of minimum temperature of Yinchuan station is 0.51 per 10 years,faster than maximum temperature stands 0.36 per 10 years.In recent 55 years,there is a downward trend of relative humidity of Yinchuan stationwith the increment 1.9% per 10 years.The change of relative humidity was not have an obvious trend of Mahuang Mountain station.Since the mid1970s,the annual average air relative humidity decreased by 11.2% in Yinchuan,It shows that the effect of restoration and reconstruction of lake and wetland significantly stronger than the impact of urbanization on the relative humidity of atmosphere.The annual precipitation of the Yinchuan and Mahuang Mountain station has a decrease trendthe climate tendency rate were 10.3 mm and 1.0 mm per 10 years respectively.The decline about the annual precipitation of Yinchuan station is lower than the Mahuang Mountain station.Influenced by the urbanization and restoration of lakes wetland,compared with Mahuang Mountain station,the annual precipitation has a slowly decreasing trend.The urbanization and restoration of lakes wetland played a significant role in reduced precipitation of Yinchuan City.

Key words: urbanization, lake wetland, Yinchuan City, climate evolution