日照市降雨侵蚀力时空分布特征

doi:10.16843/j.sswc.2017.05.007

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (8606 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract [Background] The Rizhao City, located in the southern coast of Shandong province, is northern rocky mountain soil and the national key harnessing area of Yimeng Mountains and Taishan Mountain, China. However, there are few studies on the soil erosion in the region, and no detailed research on the rainfall erosivity has been carried out specifically for Rizhao City scale.[Methods] In order to investigate the spatial and temporal variations of rainfall erosivity in Rizhao City and improve the scientific nature of soil and water conservation planning and decision-making, we used the daily rainfall data of 61 rainfall stations in Rizhao City from 2005 to 2014 to calculate the rainfall erosivity by the daily rainfall erosivity model, and analyzed the spatial pattern with the help of ArcGIS10 and the temporal variation and the correlation between rainfall, erosive rainfall and rainfall erosivity by virtue of Excel 2013.[Results]1) For the temporal variability, the annual rainfall erosivity ranged from 1 831.55 MJ·mm/(hm²·h·a) to 5 306.12 MJ·mm/(hm²·h·a), the maximum value(2008) of the average annual rainfall erosivity was 2.90 times of the minimum (2014), and the maximum value (2007) of the rainfall erosivity in flood season was 3.74 times of the minimum (2014). The monthly rainfall erosivity per station was in the range of 1.23 MJ·mm/(hm²·h·a) to 1 171.93 MJ·mm/(hm²·h·a), the rainfall erosivity was concentrated from May to September, especially from July to August. 2) For the spatial variations, the average rainfall erosivity yearly and in flood season generally increased from inland areas to southeast coastal areas, and the lowest in the central region. Comparing them at the county scale, the highest of the average annual rainfall erosivity was in Lanshan, and then Donggang, the lowest was in Juxian and Wulian. The average annual rainfall erosivity in each station was from 2 755.23 MJ·mm/(hm²·h·a) to 5 061.15 MJ·mm/(hm²·h·a), the average and the median was 3 826.01 MJ·mm/(hm²·h·a) and 3 730.97 MJ·mm/(hm²·h·a), respectively, and the standard deviation was 512.81 MJ·mm/(hm²·h·a), and the variability coefficients was 13.40%.[Conclusions] The spatial distribution pattern of soil erosion in Rizhao City is not exactly matched with the spatial distribution of rainfall erosivity. In addition to the influence of rainfall erosivity, regional soil erosion is closely related to terrain, soil, vegetation and other factors. To strengthen the research on the comprehensive influence of various factors on soil erosion should be the direction of next step. The results can provide a reference for soil and water conservation planning and decision-making and prediction of soil erosion in Rizhao City.

Key words： rainfall erosivity spatial and temporal variation Rizhao City Shandong Province

Received: 21 December 2016

PACS:

S157

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	YANG Jiachen
	ZHANG Ronghua
	QI Yucheng
	KONG Fanying
	DONG Zhi

Cite this article:

YANG Jiachen,ZHANG Ronghua,QI Yucheng, et al. Spatial and temporal variations of rainfall erosivity in Rizhao City[J]. SSWC, 2017, 15(5): 48-57.

URL:

http://journal12.magtechjournal.com/Jweb_stbc/EN/10.16843/j.sswc.2017.05.007 OR http://journal12.magtechjournal.com/Jweb_stbc/EN/Y2017/V15/I5/48

[1]	WISCHMEIER W H, SMITH D D. Predicting rainfall erosion losses:a guide to conservation planning[M].Washington, DC:USDA-ARS, 1978:34.
[2]	RENARD K G, FOSTER G R, WEESIES G A, et al. Predicting soil erosion by water:a guide to conservation planning with the revised universal soil loss equation (RUSLE)[M]. Washington, DC:USDA-AR, 1997:25.
[3]	WISCHMEIER W H, SMITH D D. Predicting rainfall erosion losses:a guide to conservation planning[M].Washington, DC:USDA Agricultural Handbook, 1978:537.
[4]	WISCHMEIER W H, SMITH D D. Rainfall energy and its relationship to soil loss[J]. Transactions, American Geophysical Union, 1958, 39(2):285.
[5]	RENARD K G, FREIMUND J R. Using monthly precipitation data to estimate the R-factor in therevised USLE[J]. Journal of Hydrology, 1994, 157:287.
[6]	周伏建,陈明华,林福兴.福建省降雨侵蚀力指标R值[J].水土保持学报,1995,9(1):13. ZHOU Fujian, CHEN Minghua, LIN Fuxing. Therainfall erosivity index in Fujian Province[J]. Journal of Soil and Water Conservation,1995, 9(1):13.
[7]	王万中,焦菊英,郝小品,等.中国降雨侵蚀力R值的计算与分布(Ⅰ)[J].水土保持学报,1995,9(4):5. WANG Wanzhong, JIAO Juying, HE Xiaopin, et al. Study onrainfall erosivity in China[J]. Journal of Soil and Water Conservation, 1995, 9(4):5.
[8]	伍育鹏,谢云,章文波.国内外降雨侵蚀力简易计算方法的比较[J].水土保持学报,2001,15(3):31. WU Yupeng, XIE Yun, ZHANG Wenbo. Comparison ofdifferent methods for estimating average annual rainfall erosivity[J].Journal of Soil and Water Conservation, 2001, 15(3):31.
[9]	章文波,谢云,刘宝元.降雨侵蚀力研究进展[J].水土保持学报,2002,16(5):43. ZHANG Wenbo, XIE Yun, LIU Baoyuan.Research evolution of rainfall erosivity[J].Journal of Soil and Water Conservation, 2002, 16(5):43.
[10]	李璐,姜小三,王晓旭,等.不同降雨侵蚀力模型在江苏省的比较研究[J].中国水土保持科学,2010,8(3):13. LI Lu, JIANG Xiaosan, WANG Xiaoxu, et al. Comparative study on different rainfall erosivity models in Jiangsu Province[J]. Science of Soil and Water Conservation, 2010, 8(3):13.
[11]	章文波,谢云,刘宝元.中国降雨侵蚀力空间变化特征[J].山地学报,2003,21(1):33. ZHANG Wenbo, XIE Yun, LIU Baoyuan. Spatial variations of rainfall erosivity in China[J]. Journal of Mountain Science, 2003, 21(1):33.
[12]	刘燕玲,刘滨辉,王力刚,等.黑龙江省降雨侵蚀力的变化规律[J].中国水土保持科学,2010,8(2):24. LIU Yanling, LIU Binhui, WANG Ligang, et al. Variation characteristics of rainfall erosivity in Heilongjiang Province[J].Science of Soil and Water Conservation, 2010, 8(2):24.
[13]	马良,左长清,尹忠东,等.山东省降雨侵蚀力多年变化特征分析[J].中国水土保持科学,2010,8(4):79. MA Liang, ZUO Changqing, YIN Zhongdong, et al. Analysis on variation characteristics of the rainfall erosivity during last 58 years in Shandong Province[J]. Science of Soil and Water Conservation, 2010, 8(4):79.
[14]	吴明作,何瑞珍,安树青,等.河南省降雨侵蚀力时空变异特征[J].中国水土保持科学,2012,10(3):22. WU Mingzuo, HE Ruizhen, AN Shuqing, et al. Spatial and temporal variations of rainfall erosivity in Henan Province[J]. Science of Soil and Water Conservation, 2012, 10(3):22.
[15]	李林育,王志杰,焦菊英.紫色丘陵区侵蚀性降雨与降雨侵蚀力特征[J].中国水土保持科学,2013,11(1):8. LI Linyu, WANG Zhijie, JIAO Juying. Erosive rainfall and rainfall erosivity in purple hilly area[J].Science of Soil and Water Conservation, 2013, 11(1):8.
[16]	张鹏,郑粉莉,付金霞.皇甫川流域51年降雨侵蚀力的时空变化[J].中国水土保持科学,2014,12(5):1. ZHANG Peng, ZHENG Fenli, FU Jinxia. Spatial and temporal variation characteristics of rainfall erosivity in Huangfuchuan Watershed over 51 years[J].Science of Soil and Water Conservation, 2014, 12(5):1.
[17]	杨韶洋,刘霞,姚孝友,等.沂蒙山区降雨侵蚀力空间分布推算方法[J].中国水土保持科学,2015,13(2):1. YANG Shaoyang, LIU Xia, YAO Xiaoyou, et al. Calculating methods of rainfall erosivity spatial distribution in Yimeng Mountain Area[J].Science of Soil and Water Conservation, 2015, 13(2):1.
[18]	国务院第一次全国水利普查领导小组办公室.水土保持情况普查[M].北京:中国水利水电出版社,2010:209. Office of the Leading Group for the First Time Water Resources Survey in the National of the State Council.General survey of soil and water conservation[M]. Beijing:China Water Resources and Hydropower Publishing House, 2010:209.
[19]	李璐,姜小三,孙永远.基于地统计学的降雨侵蚀力插值方法研究:以江苏省为例[J].生态与农村环境学报,2011,27(1):88. LI Lu, JIANG Xiaosan, SUN Yongyuan. Geostatistics-based spatial interpolation method for study of rainfall erosivity:a case study of Jiangsu[J]. Journal of Ecology and Rural Environment, 2011, 27(1):88.
[20]	黄路平,毛政元,傅水龙,等.福建省长汀县降雨侵蚀力及其与水土流失的关系研究[J].自然灾害学报,2015,24(5):103. HUANG Luping, MAO Zhengyuan, FU Shuilong, et al. Research on rainfall erosivity and its relationship with soil & water loss in Changting County, Fujian Province[J]. Journal of Natural Disasters, 2015, 24(5):103.