1983-2013年西藏自治区气象灾害时空分布特征与变化趋势

doi:10.7522/j.issn.1000-0240.2017.0323

摘要/Abstract

摘要： 西藏自治区地处青藏高原这一独特的孕灾环境中，气象灾害的频发对当地农牧业、生态环境等敏感领域的影响尤为显著。通过收集西藏自治区1983-2013年气象灾害事件，分析了干旱、雪灾、霜冻、冰雹和洪涝五种灾害的年际、月际、空间分布特征。结果表明：在时间分布上，研究区五种气象灾害在1983-1995年发生总频次呈增涨趋势，1995年后趋于稳定，其中干旱多发生在3-6月，雪灾全年均有发生，霜冻多发生在4月、5月和8月，冰雹和暴雨洪涝灾害季节性强，主要发生在6-9月；在空间分布上，气象灾害高发区分布于西藏自治区南部，其中，干旱多发区分布于日喀则市中东部和山南市北部，雪灾多发区分布于那曲、阿里以及西藏自治区南部边缘地区，霜冻多发区分布于西藏自治区东、南部少数地区，冰雹频发区多呈带状且分布于雅鲁藏布江流域，暴雨洪涝多发区分布于西藏自治区中、东部河谷地带。基于历史气象灾害事件，开展西藏自治区气象灾害的时空分布特征及趋势研究，其结果对农业气象灾害预测预报，区域农业防灾减灾等具有重要的意义。

关键词: 西藏自治区, 气象灾害, 时空分布特征, 变化趋势

Abstract: Tibet autonomous region is located on the Tibetan Plateau, where frequently occurs meteorological disasters, significantly impacting the local agriculture, animal husbandry, ecological environment. The frequent occurrence of meteorological disasters is especially harmful to the sensitive areas, such as agriculture and animal husbandry, and ecological environment. Therefore, based on the historical meteorological disaster events, it is of great significance to carry out a study of the temporal and spatial distribution characteristics and changing trend of meteorological disasters in Tibet Autonomous Region, which can be used for meteorological disaster prediction and disaster prevention and mitigation. In this paper, the annual, monthly and spatial distribution characteristics of drought, snow, frost, hail and flood disasters are analyzed through collecting information of agricultural meteorological disasters and losses in the region from 1983 through 2013. The results are as follows. In terms of temporal distribution, the frequency of the agrometeorological disaster had presented an increasing trend from 1983 to 1995. After 1995, it has changed to stationary. Drought had occurred mostly from March to June. The snowstorm had occurred throughout the year. Frost mostly had occurred in spring and early autumn. Hail and rain flood disasters had characterized of strong seasonality. They almost all had occurred from June to September in summer. In terms of spatial distribution, southern Tibet had been a high incidence area of agricultural meteorological disasters. Drought disasters had occurred mostly in the mid-eastern Xigaze Prefecture and the northern Lhoka Prefecture. The snowstorms had easy appeared widely in Nagqu Prefecture, Ali Prefecture and the southern edge of the Tibet Autonomous Region. The influence scope of frost disaster had been the least, which had occurred only in some eastern and southern areas. Hail disasters had showed zonal distribution, which had occurred mostly in the Yarlung Zangbo River basin. Storm flood disasters had been prone to occur in the mid-eastern valley areas. This research has great significance to the regional agricultural disaster prevention and mitigation.

Key words: Tibet Autonomous Region, meteorological disaster, temporal and spatial distribution characteristics, changing trend

中图分类号:

P429

熊俊楠, 刘志奇, 范春捆, 张昊, 彭超, 孙铭. 1983-2013年西藏自治区气象灾害时空分布特征与变化趋势[J]. 冰川冻土, 2017, 39(6): 1221-1231.

XIONG Junnan, LIU Zhiqi, FAN Chunkun, ZHANG Hao, PENG Chao, SUN Ming. Temporal and spatial distribution characteristics and changing trend of meteorologic disaster in Tibet Autonomous Region from 1983 through 2013[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2017, 39(6): 1221-1231.

参考文献

[1] Huang Xiaomei, Qin Xinxian, Xie Bowen, et al. Discussion on the problems and countermeasures of meteorological disaster prevention system[J]. China Science and Technology Review, 2012(35):270.[黄小妹, 覃信贤, 谢博文, 等. 浅谈气象灾害防御体系存在的问题及其对策探究[J]. 中国科技博览, 2012(35):270.]
[2] Wei Yagang, Chen Si. Effects of main meteorological disasters on agricultural production and its spatial-temporal distribution for the past 23a in Henan Province[J]. Yunnan Geographic Environment Research, 2015, 27(3):65-71.[魏亚刚, 陈思. 23年来河南省主要气象灾害对农业的影响及时空分布特征[J]. 云南地理环境研究, 2015, 27(3):65-71.]
[3] Lu Liping, Cheng Conglan, Liu Weidong, et al. Effect of the agricultural meteorological disasters on agricultural production and its spatial distribution characteristics during the last 30 years in China[J]. Ecology and Environmental Sciences, 2009, 18(4):1573-1578.[卢丽萍, 程丛兰, 刘伟东, 等. 30年来我国农业气象灾害对农业生产的影响及其空间分布特征[J]. 生态环境学报, 2009, 18(4):1573-1578.]
[4] Legislative Affairs Office of the State Council of the People's Republic of China. Regulation on the defense against meteorological disasters[J]. Jinhua Zhengbao, 2010(3):4-7.[国务院法制办. 气象灾害防御条例[J]. 金华政报, 2010(3):4-7.]
[5] Wang Xiaojun, Cheng Shaomin. Analysis of major climate characteristics in Tibet[J]. Plateau & Mountain Meteorology Research, 2009, 29(4):81-84.[王晓军, 程绍敏. 西藏主要气候特征分析[J]. 高原山地气象研究, 2009, 29(4):81-84.]
[6] Zhang Wei. Analysis of natural disasters in Tibet in modern times[J]. The Border Economy and Culture, 2013(5):1-3.[张薇. 近现代以来西藏自然灾害分析[J]. 边疆经济与文化, 2013(5):1-3.]
[7] Bai Jianhua, Song Lianjiu, Zhu Guili. Empirical analysis and improvement strategy research of the efficiency of Tibet agriculture based on DEA Model[J]. Tianjin Agricultural Sciences, 2016(5):96-102.[白建华, 宋连久, 朱桂丽. 基于DEA模型的西藏农业效率实证分析及改进策略研究[J]. 天津农业科学, 2016, 22(5):96-102.]
[8] Xin Shengpeng. Status of natural disasters in agriculture and animal husbandry in Tibet Autonomous Region[J]. China Animal Industry, 2013(16):34-36.[辛盛鹏. 西藏自治区农牧业自然灾害状况[J]. 中国畜牧业, 2013(16):34-36.]
[9] Weather China. An overview of the climate and agricultural production in Tibet in 2015[EB/OL]. (2016-01-22)[2016-10-27]. http://www.weather.com.cn/xizang/xzqh/qhgk/2459847.shtml.[中国天气网西藏站. 2015年度西藏气候与农业生产概述[EB/OL]. (2016-01-22)[2016-10-27]. http://www.weather.com.cn/xizang/xzqh/qhgk/2459847.shtml.]
[10] Zhang Wei. The general situation of Tibet natural disaster and the development process of its disaster aid[J]. Journal of Catastrophology, 2013, 28(4):176-181.[张薇. 西藏自然灾害概况及灾害救助发展探析[J]. 灾害学, 2013, 28(4):176-181.]
[11] Stocker T F, Qin Dahe, Plattner G K, et al. IPCC 2013:summary for policymakers in climate change 2013:the physical science basis:contribution of Working Group I to the fifth assessment report of the Intergovernmental Panel on Climate Change[M]. Cambridge, UK:Cambridge University Press, 2013.
[12] Laba Ciren, Suolang Jiacuo, Baima. Spatial and temporal distribution of frost days over Tibet from 1981 to 2010[J]. Journal of Geographical Sciences, 2014, 69(5):690-696.[拉巴次仁, 索朗加措, 白玛. 1981-2010年西藏霜冻日数的变化特征[J]. 地理学报, 2014, 69(5):690-696.]
[13] Gong Jingqi. Meteorological disaster emergency mobilization in Tibetan Region[J]. Journal of Xi'an Technological University, 2015(3):249-254.[巩晶骐. 西藏地区气象灾害应急动员研究[J]. 西安工业大学学报, 2015(3):249-254.]
[14] Du Jun, Lu Hongya, Jian Jun. Variations of extreme air temperature events over Tibet from 1961 to 2010[J]. Acta Geographica Sinica, 2013, 68(9):1269-1280.[杜军, 路红亚, 建军. 1961-2010年西藏极端气温事件的时空变化[J]. 地理学报, 2013, 68(9):1269-1280.]
[15] Gu Hongbo, Liu Zhiyu. On the distribution, socio-economic impact and formation mechanism of agricultural drought disaster in Hunan[J]. Journal of Shanxi Agricultural University, 2015, 14(11):1081-1085.[谷洪波, 刘芷妤. 湖南农业干旱灾害的时空分布、社会经济影响及形成机理探究[J]. 山西农业大学学报, 2015, 14(11):1081-1085.]
[16] Zhou Xiaoli, Jiala, Xiao Tiangui. Study on a grade evaluation method for snow disaster in Tibet[J]. Journal of Glaciology and Geocryology, 2016, 38(6):1560-1567.[周晓莉, 假拉, 肖天贵. 西藏地区雪灾等级评估研究[J]. 冰川冻土, 2016, 38(6):1560-1567.]
[17] Jiang Wenxuan, Jiala, Xiao Tiangui, et al. Climate change and spatial distribution of winter snowfall over the Tibetan Plateau during 1970-2010[J]. Journal of Glaciology and Geocryology, 2016, 38(5):1211-1218.[蒋文轩, 假拉, 肖天贵, 等. 1971-2010年青藏高原冬季降雪气候变化及空间分布[J]. 冰川冻土, 2016, 38(5):1211-1218.]
[18] Ai Junfeng, Cao Zhonghua. Characteristics of agricultural climate resources and analysis of main meteorological disasters in Tibet[J]. Anhui Agricultural Science Bulletin, 2011, 17(23):158-160.[艾俊峰, 曹仲华. 西藏农业气候资源特点及主要气象灾害分析[J]. 安徽农学通报, 2011, 17(23):158-160.]
[19] Wen Kegang. The collection of great classics of the meteorological disasters in China (Tibet volume)[M]. Beijing:China Meteorological Press, 2008.[温克刚. 中国气象灾害大典(西藏卷)[M]. 北京:气象出版社, 2008.]
[20] Shi Lianmei, Li Bin, Li Yuanyuan, et al. Study on economic loss assessment and risk division of hail disaster in Xinjiang[J]. Journal of Glaciology and Geocryology, 2017, 39(2):299-307.[史莲梅, 李斌, 李圆圆, 等. 新疆冰雹灾害经济损失评估及风险区划研究[J]. 冰川冻土, 2017, 39(2):299-307.]
[21] Zhang Hezhen, Jiala. Temporal-spatial characteristics and hazard regionalization of hail events in Tibet[J]. Meteorological Science & Technology, 2007, 35(1):53-56.[张核真, 假拉. 西藏冰雹的时空分布特征及危险性区划[J]. 气象科技, 2007, 35(1):53-56.]