[1]靖娟利,罗福林,王永锋,等.1998-2017年滇黔桂岩溶区降水时空动态特征[J].水土保持研究,2019,26(05):158-165.
　JING Juanli,LUO Fulin,WANG Yongfeng,et al.Spatial and Temporal Dynamics of Precipitation in Dian-Qian-Gui Karst Area from 1998 to 2017[J].Research of Soil and Water Conservation,2019,26(05):158-165.
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1998-2017年滇黔桂岩溶区降水时空动态特征

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 26 期数: 2019年05期 页码: 158-165 栏目: 出版日期: 2019-09-06
Title:
Spatial and Temporal Dynamics of Precipitation in Dian-Qian-Gui Karst Area from 1998 to 2017
作者:
靖娟利1,2, 罗福林1, 王永锋1,2, 王安娜1
1. 桂林理工大学 测绘地理信息学院, 广西 桂林 541004;
2. 广西空间信息与测绘重点实验室, 广西 桂林 541004
Author(s):
JING Juanli1,2, LUO Fulin1, WANG Yongfeng1,2, WANG Anna1
1. College of Geomatics and Geoinformation, Guilin University of Technology, Guilin, Guangxi 541004, China;
2. Guangxi Key Laboratory of Spatial Information and Geomatics, Guilin, Guangxi 541004, China
关键词:
TRMM; 滇黔桂岩溶区; 趋势分析; Mann-Kendall检验; Hurst指数
Keywords:
TRMM; Dian-Qian-Gui Karst Area; trend analysis; Mann-Kendall test; Hurst index
分类号:
P468
摘要:
为了研究滇黔桂岩溶区近20 a降水时空变化特征，基于1998—2017年TRMM 3B43降水数据和72个气象站点实测数据，运用相关系数、相对偏差对TRMM 3B43降水数据在月尺度上进行了验证，并借助Sen-Median趋势分析、Mann-Kendall检验以及Hurst指数等数理统计方法对研究区降水时空动态特征进行了定量分析。结果表明：（1）TRMM 3B43降水数据与气象站点实测数据具有较高的相关性，月尺度相关系数为0.92（p<0.01）；（2）1998—2017年研究区降水量呈不显著波动上升趋势，上升速率为0.716 mm/a（p>0.05）；春、夏两季降水量以减少趋势为主，秋、冬两季降水量以增加趋势占主导；（3）降水量年、季节均值空间分布差异显著，年降水量呈增加趋势的区域（47.71%）略高于呈减少趋势的区域（41.71%）；春、夏两季降水量以减少趋势为主，秋、冬两季以增加趋势为主；（4）年降水量持续增加的区域占38.45%，集中分布在广西、贵州东南部、云南与贵州北部接壤地带；持续减少的区域占46.21%，主要分布在云南和贵州大部分地区。研究结果对研究区水资源管理、灾害监测具有重要意义。
Abstract:
In order to study the spatial and temporal variation of precipitation in Dian-Qian-Gui Karst Area of China, TRMM 3B43 precipitation data from 1998 to 2017 and 72 rain gauge station data from 1998 to 2012 were used to verify the TRMM 3B43 data on monthly scale by correlation coefficient and relative deviation. The spatial and temporal dynamics of precipitation were quantitively analyzed by using Sen-Median method, Mann-Kendall test and Hurst index. The results showed that:(1) there was a high correlation (r=0.92,p<0.01) between TRMM 3B43 precipitation data and gauge data on monthly scale; (2) the precipitation in the study area showed an insignificant fluctuation and an increasing trend from 1998 to 2017, with an increasing rate of 0.716 mm/year (p>0.05); the changing trend of precipitation in spring and summer mainly decreased, while that in autumn and winter mainly increased; (3) the spatial distribution of mean precipitation was significantly different on annual and seasonal scale; and the annual precipitation with a trend of increasing accounted for 47.71%, which was slightly higher than decreasing areas accounting for 41.71%; in spring and summer, the precipitation had a dominant trend of decreasing, while in autumn and winter, it was mainly increasing; (4) areas with annual precipitation continuous increasing accounted for 38.45%, mainly distributed in Guangxi, southeastern Guizhou, and the border of Yunnan and northern Guizhou. However, areas with annual precipitation decreasing occupied 46.21%, mainly distributed in Yunnan and Guizhou. The research results are of great significance to the management of water resources and disaster monitoring in the study area.

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备注/Memo

收稿日期:2018-12-03;改回日期:2018-12-18。
基金项目:国家自然科学基金（41461085）；广西中青年教师基础能力提升项目（KY2016YB192）；广西空间信息与测绘重点实验室项目（15-140-07-10）
作者简介:靖娟利(1977-),女,陕西长安人,副教授,硕士,主要研究方向为遥感与GIS应用。E-mail:jjlgut2008@163.com

更新日期/Last Update: 1900-01-01