• (1)2008-2021年连续14年获得中国科技核心期刊
  • (2)2021年被中国科学院文献情报中心中国科学引文数据库CSCD(核心库)收录(2021-2022)
  • (3)热烈庆祝《水资源与水工程学报》入编北京大学图书馆《中文核心期刊要目总览》2020年版
毛春艳, 戴 丽, 杨广斌, 尹昌应, 杨 青, 刘 芳, 李 蔓.1960-2016年贵州喀斯特山区干旱时空动态分析水资源与水工程学报[J].,2021,32(3):64-72
1960-2016年贵州喀斯特山区干旱时空动态分析
Dynamic analysis of spatio-temporal distribution of droughts in karst mountainous regions of Guizhou Province from 1960 to 2016
  
DOI:10.11705/j.issn.1672-643X.2021.03.10
中文关键词:  干旱时空分布  Mann-Kendall方法  降水距平百分率  干旱频次  干旱强度  喀斯特地区
英文关键词:spatio-temporal distribution of drought  Mann-Kendall test  precipitation anomaly in percentage (PA)  drought frequency  drought intensity  karst region
基金项目:贵州省科学技术基金项目(黔科合基础[2017]1409); 贵州省科技合作计划项目(黔科合LH字[2015] 7776号); 贵州省科学技术基金项目(黔科合基础[2019]1232)
作者单位
毛春艳1,2, 戴 丽1,2, 杨广斌1,2, 尹昌应3, 杨 青4, 刘 芳1,2, 李 蔓1,2 (1.贵州师范大学 地理与环境科学学院 贵州 贵阳 550025 2.贵州省山地资源与环境遥感应用重点实验室贵州 贵阳 5500253.贵州理工学院 建筑与城市规划学院 贵州 贵阳 5500034.安顺学院 资源与环境工程学院 贵州 安顺 561000) 
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中文摘要:
      干旱是造成喀斯特地区损失最为严重的自然灾害之一。以我国西南喀斯特集中分布区域为研究区,基于研究区33个气象站1960-2016年的逐日降水数据,利用PA指数和Mann-Kendall检验方法分析了1960-2016年干旱时空分布特征。结果表明:研究区降雨量有减少趋势,PA指数呈减小趋势,干旱呈增强趋势,2011年PA均值最小;研究区各季干旱强度均呈上升趋势,且冬旱强度最强、发生干旱年份最多,秋旱次之,春旱和夏旱强度较弱、发生干旱的年份较少;年际干旱频次高发区集中于研究区南部、西北部及中东部地区;仅秋、冬季西部和东南部部分地区出现特旱且频次低,秋、冬季发生重旱、中旱和轻旱的频次高,春、夏季较低;春季干旱频次西高东低,夏季中部高,秋季南高北低,冬季西高东低;干旱与地形因子显著相关,重、特旱易发生在高陡地区。综上所述,研究区干旱有增强趋势且秋、冬季趋势较强,空间上呈现明显的季节性和区域性,且与地形因子显著相关。
英文摘要:
      Droughts is one of the natural disasters which can cause severe damages to the karst regions. Here, the Chinese southwest karst region was selected as the study area. Based on the daily precipitation monitored by 33 weather stations in the study area from 1960 to 2016, the temporal and spatial pattern of droughts were analyzed using the methods of precipitation anomaly in percentage (PA) and Mann-Kendall test. The results showed that PA and precipitation decreased, whereas the drought increased in the study period, and the mean PA in 2011 was the smallest. The drought intensity of each season showed an upward trend, among which the intensity and frequency of winter drought was the highest, followed by autumn drought, spring and summer droughts were weak and infrequent. The frequency of interannual drought was high in the south, northwest and middle east of the study area. Extreme droughts only occurred with low frequency in the west and southeast in autumn and winter. The frequency of severe, moderate and light drought were high in autumn and winter, and low in spring and summer. The drought frequency was high in the west and low in the east in spring, high in the middle in summer, high in the south and low in the north in autumn, and high in the west and low in the east in winter. Furthermore, droughts were significantly correlated with topographic factors, severe and extreme droughts mostly occurred in high and steep areas. These findings indicate that the frequency and intensity of droughts in the study area has increased, which is more significant in autumn and winter. The karst drought is highly related with terrain, and has obvious spatial and temporal patterns.
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