YOU Man,HE Zhonghua,ZHANG Lang,et al.Spatiotemporal Variation Characteristics of Meteorological Drought in Guizhou Province Based on Relative Humidity Index[J].Research of Soil and Water Conservation,2022,29(04):255-262+269.
基于相对湿润指数的贵州省气象干旱时空变化特征研究
- Title:
- Spatiotemporal Variation Characteristics of Meteorological Drought in Guizhou Province Based on Relative Humidity Index
- 文章编号:
- 1005-3409(2022)04-0255-08
- Keywords:
- relative humidity index; drought weather; spatiotemporal characteristics; Guizhou Province
- 分类号:
- P42
- 文献标志码:
- A
- 摘要:
- 为探究贵州省各区域干旱发生频率、强度及不同等级干旱的时空分布特点,基于贵州省17个气象站1981—2019年逐日气象数据,利用相对湿润指数,同时结合Couple二维分布函数,探讨了干旱强度和干旱频率的联合、条件概率特征,以揭示贵州省气象干旱的时空分布规律。结果表明:(1)贵州省1981—2019年气象干旱强度呈减弱—增强趋势,整体上呈减弱的趋势,干旱频率呈上升趋势。(2)贵州省年与季尺度发生干旱强度在空间上分布有所不同,季尺度中,冬旱强度最强,秋旱和夏旱次之,春旱强度较弱;(3)年及冬、春季节干旱频率在空间上呈西高东低的分布格局,夏、秋季节分布较为一致; 季尺度中,干旱频率呈冬季最高,春、秋季次之,夏季最低;(4)在干旱联合特征中,季尺度的联合特征值呈春季>冬季>秋季>夏季,在各季节干旱强度的条件下,各季节干旱频率的条件概率特征值表现为夏季>秋季>冬季>春季。综上,贵州省气象干旱强度逐渐降低,干旱频发,呈春旱高频率、高强度,夏旱低强度、高频率。
- Abstract:
- In order to explore the spatial and temporal distribution characteristics of drought frequency, tensity and in different regions of Guizhou Province, based on the daily meteorological data of 17 meteorological stations in Guizhou Province from 1981 to 2019, the joint and conditional probability characteristics of drought intensity and drought frequency were discussed to reveal the spatial and temporal distribution of meteorological drought in Guizhou Province by using the relative humidity index, and combined with a Couple two-dimensional distribution function. The results show that:(1)from 1981 to 2019, the meteorological drought intensity in Guizhou Province showed a trend of weakening and increasing, and the drought frequency showed the increasing trend;(2)the spatial distribution of annual and seasonal drought intensity in Guizhou Province was different; at the seasonal scale, the winter drought intensity was the strongest, followed by autumn drought and summer drought, and the spring drought intensity was weak;(3)the spatial distribution pattern of drought frequency in year, winter and spring was higher in the west and lower in the east, and the distribution was more consistent in summer and autumn; at the seasonal scale, the drought frequency was the highest in winter, followed by spring and autumn, and the lowest in summer;(4)among the combined characteristics of drought, the combined characteristic values of the seasonal scale decreased in the order: spring>winter>autumn>summer; under the condition of drought intensity in each season, the conditional probability characteristic value of drought frequency in each season deceased in the order: summer>autumn>winter>spring. In conclusion, the intensity of meteorological drought in Guizhou Province gradually decreased, drought occurred frequently, spring drought was high frequency and high intensity, summer drought was low intensity and high frequency.
参考文献/References:
[1] Buttafuoco G, Caloiero T, Coscarelli R. Analyses of drought events in Calabria(Southern Italy)using standardized precipitation index[J]. Water Resources Management, 2015,29(2): 557-573.
[2] Wilhite D A, Glantz M H. Understanding the drought phenomenon the role of definitions[J]. Water International, 1985,10(3):111-120.
[3] 徐羽,吴艳飞,徐刚,等.基于相对湿润指数的重庆市气象干旱时空分布特征[J].西南大学学报:自然科学版,2016,38(4):96-103.
[4] Dracup J A, Lee K S, Paulson Jr E G. On the definition of droughts[J]. Water Resources Research, 1980,16(2):297-302.
[5] 刘晓云,李栋梁,王劲松.1961—2009年中国区域干旱状况的时空变化特征[J].中国沙漠,2012,32(2):473-483.
[6] 曹兴,万瑜,崔玉玲,等.中天山北坡近30年相对湿润指数变化趋势分析[J].干旱地区农业研究,2013,31(3):244-251.
[7] 曹二佳,薛羽,李红瑛,等.基于相对湿润指数的蒙中农牧交错带作物生长季干旱时空分析:以乌兰察布市为例[J].中国农村水利水电,2019(11):165-171.
[8] 祁嘉郁,巴特尔·巴克.基于相对湿润度指数的北疆气象干旱时空特征[J].水土保持研究,2021,28(3):223-228.
[9] 王明田,王翔,黄晚华,等.基于相对湿润度指数的西南地区季节性干旱时空分布特征[J].农业工程学报,2012,28(19):85-92,295.
[10] 张青雯,崔宁博,赵禄山,等.基于相对湿润指数的云南省季节性干旱变化特征[J].干旱地区农业研究,2020,38(4):278-284.
[11] 张克新,王娟娟,彭娇婷,等.贵州省降水集散程度时空变化及其影响因素分析[J].贵州师范大学学报:自然科学版,2020,38(2):10-18.
[12] 李月,白晓永,周运超,等.基于SPEI的贵州省近60年干旱时空特征分析[J].中国水土保持,2015(7):57-60.
[13] 贺中华,陈晓翔,梁虹,等.基于土壤系统结构的喀斯特流域水文干旱分析:以贵州省为例[J].自然资源学报,2013,28(10):1731-1742.
[14] 毛春艳,戴丽,杨广斌,等.1960—2016年贵州喀斯特山区干旱时空动态分析[J].水资源与水工程学报,2021,32(3):64-72,79.
[15] 申双和,张方敏,盛琼.1975—2004年中国湿润指数时空变化特征[J].农业工程学报,2009,25(1):11-15.
[16] 张强,邹旭凯,肖风劲,等.气象干旱等级GB/T20481—2006[S].北京:中国标准出版社,2006.
[17] 柏庆顺,颜鹏程,蔡迪花,等.近56 a中国西北地区不同强度干旱的年代际变化特征[J].干旱气象,2019,37(5):722-728.
[18] He Z, Liang H, Yang C, et al. Temporal-spatial evolution of the hydrologic drought characteristics of the karst drainage basins in South China[J]. International Journal of Applied Earth Observation and Geoinformation, 2018, 64: 22-30.
[19] 任璐.基于Copula的汾河上游水文干旱频率的多时间尺度分析[D].太原:太原理工大学,2016.
[20] 胡义明,罗序义,梁忠民,等.基于藤Copula多维联合分布的CMIP5多模式降雨综合方法研究[J].中国农村水利水电,2021(4):10-15.
[21] 慎东方,商崇菊,方小宇,等.贵州省干旱历时和干旱烈度的时空特征分析[J].干旱区资源与环境,2016,30(7):138-143.
[22] 罗文芳.青藏高原积雪异常与贵州东、西部旱、寒灾害关系的初步分析[J].高原气象,2001,20(3):340-344.
相似文献/References:
[1]徐羽,许有鹏,吴艳飞,等.近50年重庆市气象干旱时空分布特征研究[J].水土保持研究,2016,23(06):363.
XU Yu,XU Youpeng,WU Yanfei,et al.Temporal and Spatial Patterns of the Meteorological Drought in Chongqing City During Recent 50 Years[J].Research of Soil and Water Conservation,2016,23(04):363.
[2]孔令颖,扶松林,韩晓阳,等.基于传统干湿指数的省域长历时气象干旱变化特征及其对旱作粮食单产的影响[J].水土保持研究,2020,27(03):159.
KONG Lingying,FU Songlin,HAN Xiaoyang,et al.Spatiotemporal Variation of Long-term Meteorological Drought and Its Impacts on Grain Yield in Shaanxi Province Based on the Traditional Arid-Wet Index[J].Research of Soil and Water Conservation,2020,27(04):159.
[3]张 特,刘 冀,魏 榕,等.淮河上游植被对气象干旱的响应[J].水土保持研究,2020,27(02):213.
ZHANG Te,LIU Ji,WEI Rong,et al.Response of Vegetation to Meteorological Drought in Upper Huaihe River Basin[J].Research of Soil and Water Conservation,2020,27(04):213.
[4]杨铭珂,贺中华,任荣仪.黔中地区气象水文干旱演变特征及其响应关系[J].水土保持研究,2022,29(01):264.
YANG Mingke,HE Zhonghua,REN Rongyi.Evolution Characteristics of Meteorological and Hydrological Drought and Their Response Relations in Central Guizhou[J].Research of Soil and Water Conservation,2022,29(04):264.
[5]潘 杉,贺中华,陈莉会,等.基于不同时间尺度的贵州省近50年气象干旱时空演化特征[J].水土保持研究,2023,30(03):279.[doi:10.13869/j.cnki.rswc.2023.03.033]
PAN Shan,HE Zhonghua,CHEN Lihui,et al.Spatiotemporal Evolution Characteristics of Meteorological Drought in Guizhou Province in Recent 50 Years Based on Different Time Scales[J].Research of Soil and Water Conservation,2023,30(04):279.[doi:10.13869/j.cnki.rswc.2023.03.033]
备注/Memo
收稿日期:2021-07-06 修回日期:2021-07-15
资助项目:国家自然科学基金(u1612441; 41471032); 贵州省水利厅自然科研基金(KT201402); 贵州师范大学2015年博士科研启动项目
第一作者:游漫(1995—),女(满族),贵州大方人,在读硕士,研究方向为喀斯特水文水资源与遥感。E-mail:youman95@163.com
通信作者:贺中华(1976—),男,贵州兴义人,博士,教授,主要从事喀斯特水文水资源与遥感研究。E-mail:hezhonghua7621@126.com