1960—2017年黄土高原不同等级降水日数和强度时空变化特征
收稿日期: 2020-08-19
修回日期: 2020-12-26
网络出版日期: 2021-06-17
基金资助
国家自然科学基金重点项目(41230852);陕西省人社厅项目(RS17);陕西省教育厅项目(19JK0004);陕西省教育厅项目(20JK0009);安康学院高层次人才引进项目(182401245)
Spatio-temporal characteristics of precipitation days and intensity with different grades in the Loess Plateau during 1961-2017
Received date: 2020-08-19
Revised date: 2020-12-26
Online published: 2021-06-17
降水日数及强度的变化特征研究对黄土高原应对气候变化及水资源开发利用具有重要的科学意义。利用1960—2017年黄土高原地区55个地面气象站逐日降水资料,分析了总降水和不同等级降水(小雨、中雨、大雨和暴雨)的日数、强度和降水量的时空变化规律,并量化各等级降水日数和强度对降水量增量的贡献。结果表明:(1) 近58 a黄土高原地区不同等级降水日数和降水量,以及大雨和暴雨强度皆呈减少趋势,而总降水、小雨和中雨强度呈增加趋势,小雨日是黄土高原地区降水最主要的形式。(2) 黄土高原地区总降水、小雨、中雨的降水日数和降水量及其变化趋势的空间分布格局基本一致,即总降水和小雨等级皆呈西南高、西北低,降幅呈南多北少格局;中雨等级自东南至西北方向递减,趋势呈南降北增的规律;大雨以上等级自东南至西北向递减,趋势呈中部增加、南北减少特征。各等级降水强度与对应降水量分布特征基本一致,但强度趋势的空间分布较为复杂。(3) 黄土高原多数地区的降水量下降趋势是由降水日数的减少所致。降水日数趋势变化对降水增量起主要贡献的有总降水、小雨和中雨等级,空间格局呈南高北低特征;降水强度趋势变化对降水增量起主要贡献的仅有大雨以上等级,呈东北至西南方向高,而两侧低的空间特征。
安彬,肖薇薇,张淑兰,张建东 . 1960—2017年黄土高原不同等级降水日数和强度时空变化特征[J]. 干旱区研究, 2021 , 38(3) : 714 -723 . DOI: 10.13866/j.azr.2021.03.13
The study on the variation characteristics of precipitation days and intensity is significant for the Loess Plateau to cope with climate change and water resource exploitation. Based on the daily precipitation data of 55 surface meteorological stations in the Loess Plateau from 1960 to 2017, the temporal and spatial variability of rainfall, precipitation days, and intensity of the total precipitation and precipitation of different grades (light rain, moderate rain, heavy rain, and rainstorm) were analyzed. The contribution of precipitation days and intensity at each grade to precipitation increment was quantified. Results showed that the total precipitation, light rain, moderate rain, heavy rain, rainstorm days and rainfall, and the intensity of heavy rain and rainstorm all had a decreasing trend in the past 58 years. In contrast, the intensity of total precipitation, light rain, and moderate rain increased. Light rain day is the primary precipitation form in the Loess Plateau. The precipitation days of total precipitation, light rain, and moderate rain in the Loess Plateau were consistent with their respective spatial patterns; that is, the levels of total precipitation and light rain were higher in the southwest and lower in the northwest. The decreasing amplitude was more significant in the south than in the north; also, the moderate rain grades decreased from southeast to northwest, and trend showed the law of descending from south to increasing from north. The heavy rain and above grades decreased from southeast to northwest, and the trend also decreased in the middle and north and south. The precipitation intensity of each grade was consistent with the corresponding precipitation distribution characteristics. However, the spatial distribution of intensity trend was more complex. The decreasing trend of precipitation in most areas was due to the reduction in precipitation days. The primary contribution of precipitation days trend change to precipitation increment included total precipitation, light rain, and moderate rain. The spatial pattern of their contribution rate was high in the south and low in the north. While the primary contribution of precipitation intensity trend change to precipitation increment was for heavy rain and above, which was spatially characterized by high in the northeast-southwest and low in the east and west.
[1] | 陈洁, 刘玉洁, 潘韬, 等. 1961—2010年中国降水时空变化特征及对地表干湿状况影响[J]. 自然资源学报, 2019,34(11):2440-2453. |
[1] | [ Chen Jie, Liu Yujie, Pan Tao, et al. Spatiotemporal variation of precipitation in China and its impact on surface dry-wet conditions during 1961-2010[J]. Journal of Natural Resources, 2019,34(11):2440-2453. ] |
[2] | 杨佳, 郝桂珍, 张婧, 等. 1960—2016年冀西北地区降水时空变化特征研究[J]. 水资源与水工程学报, 2019,30(5):117-123, 133. |
[2] | [ Yang Jia, Hao Guizhen, Zhang Jing, et al. The spatial and temporal variation characteristics of precipitation in Northwest Hebei Province during 1960-2016[J]. Journal of Water Resources and Water Engineering, 2019,30(5):117-123, 133. ] |
[3] | 孔锋, 史培军, 方建, 等. 全球变化背景下极端降水时空格局变化及其影响因素研究进展和展望[J]. 灾害学, 2017,32(2):165-174. |
[3] | [ Kong Feng, Shi Peijun, Fang Jian, et al. Advances and prospects of spatiotemporal pattern variation of extreme precipitation and its affecting factors under the background of global climate change[J]. Journal of Catastrophology, 2017,32(2):165-174. ] |
[4] | Xie Z Q, Du Y, Zeng Y, et al. Classification of yearly extreme precipitation events and associated flood risk in the Yangtze-Huaihe River Valley[J]. Science China Earth Sciences, 2018,61(9):1341-1356. |
[5] | 李慧芳, 殷淑燕. 海河流域不同等级降水强度和雨日的时空变化特征[J]. 中国农业气象, 2014,35(6):603-610. |
[5] | [ Li Huifang, Yin Shuyan. Temporal and spatial variation of precipitation intensity and days with different grades in Haihe River Basin[J]. Chinese Journal of Agrometeorology, 2014,35(6):603-610. ] |
[6] | 汪卫平, 杨修群, 张祖强, 等. 中国雨日数的气候特征及趋势变化[J]. 气象科学, 2017,37(3):317-328. |
[6] | [ Wang Weiping, Yang Xiuqun, Zhang Zuqiang, et al. The climatic characteristics and trends of rainy days over China[J]. Journal of the Meteorological Sciences, 2017,37(3):317-328. ] |
[7] | 王颖, 施能, 顾骏强, 等. 中国雨日的气候变化[J]. 大气科学, 2006,31(1):162-170. |
[7] | [ Wang Ying, Shi Neng, Gu Junqiang, et al. Climatic variations of wet days in China[J]. Chinese Journal of Atmospheric Sciences, 2006,31(1):162-170. ] |
[8] | 白淑英, 莫婷, 史建桥, 等. 近50 a贵州不同强度降水日数时空变化分析[J]. 南水北调与水利科技, 2015,13(2):220-224. |
[8] | [ Bai Shuying, Mo Ting, Shi Jianqiao, et al. Spatial and temporal variations of rainfall days with different intensities in Guizhou in recent 50 years[J]. South-to-North Water Transfers and Water Science & Technology, 2015,13(2):220-224. ] |
[9] | 吴昊旻, 廖必军, 蔡寿强. 浙江省不同强度降水日数的时空分布特征[J]. 干旱气象, 2012,30(3):360-366. |
[9] | [ Wu Haomin, Liao Bijun, Cai Shouqiang. Temporal and spatial distribution characteristics of different level rainfall days in Zhejiang Province[J]. Journal of Arid Meteorology, 2012,30(3):360-366. ] |
[10] | 袁宇锋, 翟盘茂, 李建, 等. 北京城、郊和山区不同强度等级降水变化特征比较[J]. 气候变化研究进展, 2017,13(6):589-597. |
[10] | [ Yuan Yufeng, Zhai Panmao, Li Jian, et al. Changes in classified precipitation in the urban, suburban and mountain areas of Beijing[J]. Climate Change Research, 2017,13(6):589-597. ] |
[11] | 顾朝军, 穆兴民, 高鹏, 等. 1961—2014年黄土高原地区降水和气温时间变化特征研究[J]. 干旱区资源与环境, 2017,31(3):136-143. |
[11] | [ Gu Chaojun, Mu Xingmin, Gao Peng, et al. Characteristics of temporal variation in precipitation and temperature in the Loess Plateau from 1961 to 2014[J]. Journal of Arid Land Resources and Environment, 2017,31(3):136-143. ] |
[12] | 李志, 郑粉莉, 刘文兆. 1961—2007年黄土高原极端降水事件的时空变化分析[J]. 自然资源学报, 2010,25(2):291-299. |
[12] | [ Li Zhi, Zheng Fenli, Liu Wenzhao. Analyzing the spatial-temporal changes of extreme precipitation events in the Loess Plateau from 1961 to 2007[J]. Journal of Natural Resources, 2010,25(2):291-299. ] |
[13] | 王麒翔, 范晓辉, 王孟本. 近50a黄土高原地区降水时空变化特征[J]. 生态学报, 2011,31(19):5512-5523. |
[13] | [ Wang Qixiang, Fan Xiaohui, Wang Mengben. Precipitation trends during 1961-2010 in the Loess Plateau region of China[J]. Acta Ecologica Sinica, 2011,31(19):5512-5523. ] |
[14] | 赵安周, 朱秀芳, 潘耀忠. 1965—2013年黄土高原地区极端降水事件时空变化特征[J]. 北京师范大学学报(自然科学版), 2017,53(1):43-50. |
[14] | [ Zhao Anzhou, Zhu Xiufang, Pan Yaozhong. Spatiotemporal variations of extreme precipitation events in the Loess Plateau from 1965 to 2013[J]. Journal of Beijing Normal University (Natural Science Edition), 2017,53(1):43-50. ] |
[15] | Wang X L, Chen H, Wu Y, et al. New techniques for detection and adjustment of shifts in daily precipitation data series[J]. Journal of Applied Meteorology and Climatology, 2010,49(12):2416-2436. |
[16] | 徐建华. 计量地理学[M]. 第二版. 北京: 高等教育出版社, 2014. |
[16] | [ Xu Jianhua. Quantitative Geography[M]. 2nd ed. Beijing: Higher Education Press, 2014. ] |
[17] | 汤国安, 杨昕. 地理信息系统空间分析实验教程[M]. 第二版. 北京: 科学出版社, 2012. |
[17] | [ Tang Guo’an, Yang Xin. Experimental Course on Spatial Analysis of Geographic Information Systems[M]. 2nd ed. Beijing: Science Press, 2012. ] |
[18] | 徐新创, 张学珍, 戴尔阜, 等. 1961—2010年中国降水强度变化趋势及其对降水量影响分析[J]. 地理研究, 2014,33(7):1335-1347. |
[18] | [ Xu Xinchuang, Zhang Xuezhen, Dai Erfu, et al. Research of trend variability of precipitation intensity and their contribution to precipitation in China from 1961 to 2010[J]. Geographical Research, 2014,33(7):1335-1347. ] |
[19] | Karl T R, Knight R W. Secular trends of precipitation amount, frequency, and intensity in the United States[J]. Bulletin of the American Meteorological Society, 1998,79(2):231-241. ] |
[20] | 杨昭明, 张调风. 1961—2017年青藏高原东北部雨季降水量变化及其贡献度分析[J]. 干旱区研究, 2021,38(1):22-28. |
[20] | [ Yang Zhaoming, Zhang Tiaofeng. Analysis of precipitation change and its contribution in the rainy season in the northeast Qinghai-Tibet Plateau from 1961 to 2017[J]. Arid Zone Research, 2021,38(1):22-28. ] |
[21] | 陈晓燕, 尚可政, 王式功, 等. 近50年中国不同强度降水日数时空变化特征[J]. 干旱区研究, 2010,27(5):766-772. |
[21] | [ Chen Xiaoyan, Shang Kezheng, Wang Shigong, et al. Analysis on the spatiotemporal characteristics of precipitation under different intensities in China in recent 50 years[J]. Arid Zone Research, 2010,27(5):766-772. ] |
[22] | 林云萍, 赵春生. 中国地区不同强度降水的变化趋势[J]. 北京大学学报(自然科学版), 2009,45(6):995-1002. |
[22] | [ Lin Yunping, Zhao Chunsheng. Trends of precipitation of different intensity in China[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2009,45(6):995-1002. ] |
[23] | 孙艺杰, 刘宪锋, 任志远, 等. 1960—2016年黄土高原干旱和热浪时空变化特征[J]. 地理科学进展, 2020,39(4):591-601. |
[23] | [ Sun Yijie, Liu Xianfeng, Ren Zhiyuan, et al. Spatiotemporal changes of droughts and heatwaves on the Loess Plateau during 1960-2016[J]. Progress in Geography, 2020,39(4):591-601. ] |
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