[1]徐 晶,徐征和,李 伟,等.济南市1970-2016年降雨侵蚀力时空变化[J].山地学报,2018,(03):391-400.[doi:10.16089/j.cnki.1008-2786.000335]
　XU Jing,XU Zhenghe,LI Wei,et al.Temporal and Spatial Changes of Rainfall Erosivity during 1970-2016 in Jinan City, China[J].Mountain Research,2018,(03):391-400.[doi:10.16089/j.cnki.1008-2786.000335]
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济南市1970-2016年降雨侵蚀力时空变化()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2018年03期
页码:
391-400
栏目:
山地灾害
出版日期:
2018-05-30

文章信息/Info

Title:
Temporal and Spatial Changes of Rainfall Erosivity during 1970-2016 in Jinan City, China
文章编号:
1008-2786-(2018)3-391-10
作者:
徐 晶1; 徐征和2; 李 伟3; 王秀茹1*; 王 希2
1.北京林业大学 水土保持学院,北京 100083; 2.济南大学 资源与环境学院,济南250022; 3.济南市锦绣川水库管理处,济南 250022
Author(s):
XU Jing1;  XU Zhenghe2;  LI Wei3;  WANG Xiuru1*;  WANG Xi2
1.School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China; 2.College of Resources and Environment, University of Jinan, Jinan 250022, China; 3.Administration Office of Jinxiuchuan Reservoir in Jinan, Jinan 250022, China
关键词:
降雨侵蚀力;  时空分布特征;  降雨;  土壤侵蚀;  济南市
Keywords:
rainfall erosivity;  spatio-temporal distribution characteristics;  rainfall;  soil erosion;  Jinan City
分类号:
S157.1
DOI:
10.16089/j.cnki.1008-2786.000335
文献标志码:
A
摘要:
降雨侵蚀力是反映降雨引起土壤侵蚀能力大小的关键指标,对水土流失的监测、预报及治理具有重要的意义。本研究利用济南市48个雨量站1970-2016年日降雨数据,采用Mann-Kendall非参数趋势检验和突变检验、小波周期分析(Wavelet Analysis)、泰森多边形及ArcGIS逆距离加权插值(IDW,Inverse Distance Weighted)等方法分析了济南市降雨侵蚀力的时空变化特征。结果表明:(1)济南市多年平均降雨侵蚀力是3774.91 MJ·mm·hm-2·h-1·a-1,年际变化整体呈现不显著的增长趋势,存在着3～6年、7～11年和19～25年3类不同尺度的周期变化规律,在1980年和1990年附近发生突变;(2)降雨侵蚀力年内分布不均,多集中在6-9月,春季和夏季表现为微弱的上升趋势,秋季和冬季表现为下降趋势;(3)降雨侵蚀力与降雨量的空间分布规律相似,中部和南部地区明显高于北部和西南地区,东西部差异不明显,且大部分区域的年降雨侵蚀力表现为不显著增长的趋势;(4)各雨量站的变异系数(Cv)范围是0.28～0.49,且多数雨量站1990-2016年平均降雨侵蚀力比1970-1989年增加10%以上;(5)不同地形区的降雨侵蚀力与降雨量都存在较好的相关关系,而与海拔的相关关系不显著。
Abstract:
Soil erosion has been recognized as one of the most serious ecological environment issues, catching the growing concerns over years.Rainfall is naturally responsible for soil erosion.The rainfall erosivity is a sensitive reflection of potential soil erosion induced by precipitation.It is of great significance to the monitoring, forecasting and control of soil erosion.In this study it collected rainfall data from 48 rainfall stations in Jinan City from 1970 to 2016, and used the Mann-Kendall non-parametric trend test and mutation test, wavelet analysis, and ArcGIS inverse distance weighted(IDW)interpolation methods to investigate the temporal and spatial characteristics of erosive erosivity in Jinan City.Results showed that:(1)The average annual rainfall erosivity for 1970-2016 in Jinan City was 3774.91 MJ·mm·hm-2·h-1·a-1.The interannual variation as a whole presented non-significant growth trend.In the 3～6 years, 7～11 years and 19～25 years, there were 3 types of periodic variation with different scales, and changes occurred abruptly around 1980 and 1990.(2)Rainfall erosivity was unevenly distributed through a year, mostly concentrated from June to September.The rainfall erosivity showed a slight upward trend in spring and summer, and declined in autumn and winter.(3)The spatial distribution of rainfall erosivity was consistent with the pattern of precipitation.In the central and southern regions they were significantly higher than those in the north and southwest regions, but there was no significant difference between the east and the west, and the annual rainfall erosivity in most regions showed no significant increase.(4)The variation coefficient of rainfall erosivity for all rainfall stations was between 0.28 to 0.49, and as comparing with the average annual rainfall erosivity during 1970-1989, it increased by more than 10% during 1990-2016 at most of the rainfall stations.(5)There was a good correlation between rainfall erosivity and precipitation in different terrain areas, but there was no significant correlation with elevation.

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备注/Memo

备注/Memo:
收稿日期(Received date):2018-01-04; 改回日期(Accepted data):2018-05-14
基金项目(Foundation item):水利部公益性行业科研专项(201401001); 济南市社会民生重大专项(SHMS2015-301); 济南大学科研基金(XKY1524)。[Ministry of Water Resources Public Welfare Industry Research Special Project(201401001); Major Livelihood Projects of Jinan(SHMS2015-301); Research Fund of University of Jinan(XKY1524)]
作者简介(Biography):徐晶(1990-),女,山东烟台人,博士生,主要从事土壤侵蚀和水资源配置。[XU Jing(1990-), female,born in Yantai,Shandong province,Ph.D.candidate, research on soil erosion and water resource allocation] E-mail:xj_jndx@163.com
*通讯作者(Corresponding author):王秀茹(1957-),女,河北保定人,博士,教授,主要从事水土保持及农田水利研究。[WANG Xiuru(1957-),female,born in Baoding Hebei province,Ph.D.,professor,research on water and soil conservation and irrigation and water conservancy] E-mail:wang-xr@163.com
更新日期/Last Update: 2018-05-30