自然资源学报 ›› 2008, Vol. 23 ›› Issue (4): 589-599.doi: 10.11849/zrzyxb.2008.04.006

• 资源生态 • 上一篇    下一篇

原生态环境下广西涠洲岛近50年气候变率的分析

谭宗琨1,2, 欧钊荣1,2, 何鹏3   

  1. 1. 国家卫星气象中心 遥感应用实验基地,南宁 530022;
    2. 广西区气象减灾研究所,南宁530022;
    3. 广西灵山县气象局,广西 灵山535400
  • 收稿日期:2007-08-28 修回日期:2008-01-12 出版日期:2008-07-28 发布日期:2008-07-28
  • 作者简介:谭宗琨(1966- ),男,高级工程师,研究方向为应用气象。E-mail:tanzongkun@163.com
  • 基金资助:

    "十一五"国家科技支撑计划重点项目"农业重大象灾重监测预警与调控技术研究——华南寒害监测预警技术研究"(2006BAD04B03)和中国气象局新技术推广项目(CMATG2006M42)、桂科攻(0322017-1)项目资助。

Analysis of Climate Variation of the Weizhoudao Island in Guangxi Province Based on Original Environment during the Last 50 Years

TAN Zong-kun1,2, OU Zhao-rong1,2, HE Peng3   

  1. 1. Remote Sensing Application and Test Base of National Satellite Meteorology Centre,Nanning 530022;
    2. Guangxi Institute of Meteorology,Nanning 530022,China;
    3. Guangxi Lingshan Meteorological Administration,Lingshan 535400,China
  • Received:2007-08-28 Revised:2008-01-12 Online:2008-07-28 Published:2008-07-28

摘要: 广西涠洲岛气象站由于其特定的地理位置,使得该站成为广西为数不多、大气观测环境50年来持续保持原有生态环境的气象台站之一。应用该岛屿气象站及与之相邻的广西北海市合浦气象站1956~2005年的气温、雨量等气象资料,分析、比较近50年来北部湾海域气候自然变化和在城镇大规模发展影响下气候变化的差异及发展趋势:用Yamamoto法和Mann-Kendall法对5年滑动平均气温、雨量等要素季和年时间序列进行突变检验,对定量地论述在全球气候变暖情况下区域性气候自然变化的响应有非常重要的意义。

关键词: 涠洲岛, 原始生态环境, 气候变率, 气候突变

Abstract: Weizhoudao island meteorological station has been keeping its original environment because of its special geographic position during the last 50 years.In the vicinity of Weizhoudao island,landing surface of Hepu meteorological station has been changed tremendously as urban growth since the 1980s.Based on the data of monthly air temperature and precipitation from both meteorological stations from 1956 to 2005.The difference of climate variations and tendencies of Weizhoudao island have been ananlyzed and compared with Hepu meteorological station during the last 50 years.The climate jump has been examined in terms of 5-year moving average season and annual series of 2 factors using Yamamoto method and Mann-Kendall method.The annual mean temperature was tending to go up and increased 0.615℃ in Weizhoudao island and 1.04℃ in Hepu during the last 50 years.The departure values of annual mean temperature have been positive since 1989.The linear tendency values of annual pecipitation was tending to go up and increased 119.6mm in Weizhoudao island during the last 50 years.The variation of annual precipitaion in Weizhoudao island during the last 50 years had gone throng two increase periods that occurred from 1972 to 1986 and 1993 to 2002.Between them there was a decrease period from 1956 to 1971 and 1987 to 1992 and 2003 to 2005.Climate jumps tested by both Yamamoto method and Mann-Kendall method in Weizhoudao island during the last 50 years are as follows.According to the annual mean temperature,an abrupt warming occurred in the late 1980s.The amplitude of abrupt variation was +0.35℃.The seasonal abrupt warming in spring,summer,autumn and winter all took place in the mid or the late 1980s,and abrupt warming in winter since 1997.The abrupt change of summer and winter precipitation occurred prior to the 1970s.Based on the facts of climate changes of Weizhoudao island,it is held that the abrupt warming of the Weizhoudao island during 50 years probably resulted from keeping original ecosystem environment.

Key words: Weizhoudao island, original environment, climatic variation, climate jump

中图分类号: 

  • P467