Abstract
The study on sediment production and its relationship with climatic and hydrological factors in watershed is a major environment issue of concern in the international community. Based on the observational records covering the period from 1954 to 1999, the characteristics of precipitation changing over the Dasha River Watershed in Anhui Province and its relation to sediment yield were studied using tendency analysis and correlation analysis. Results showed that the precipitation of the Dasha River Watershed has high variability. In those 46 years, 34% of spring rainfall, 58% of summer rainfall and 30% of annual rainfall will be considered anomaly. The gray correlation analysis shows that sediment discharge correlates most closely with the frequency of the rainstorm with a daily precipitation above 100mm, secondly with the frequency of the rainstorm with a daily precipitation of 50–100mm, and thirdly with the number of rainy days. Their correlation coefficients are 0.98, 0.90 and 0.85 respectively. In addition, the paper suggests the major countermeasures and methods for controlling of soil and water losses in this area.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
AN He-ping, 1994. The correlation among rainfall, runoff and sediment in North Pan River [J]. Journal of Soil and Water Conservation, 8(3): 46–51. (in Chinese)
GUY B T, DICKINSON W T, RUDRA R P, 1987. The roles of rainfall and runoff in the sediment transport capacity of interrill flow [J]. Transactions of the American Society of Agricultural Engineers, 30: 1378–1386.
LANGBEIN L B, SCHUMM S A, 1958. Yield of sediment in relation to mean annual precipitation [J]. Tran. Am. Geophy. Union, 39: 1076–1084.
LI Zhan-bin, FU Su-hua, LU Ke-xin, 2001. Characteristics of rainstorm, flood and sediment yield in Tuwei River Watershed [J]. Journal of Soil and Water Conservation, 15(2): 88–91. (in Chinese)
LIANG Yin, YANG Yan-sheng, LU Xi-xi, 1991. A correlation analysis of an amount of sediment transport and runoff factors in Wanshui Valley of Anhui Province [J]. Journal of Soil and Water Conservation, 5(3): 74–79. (in Chinese)
LOAGUE K M, FREEZE R A, 1985. A comparison of rain-runoff modeling techniques on small upland catchments [J]. Water Resources Research, 21: 229–248.
TANG Qi-yi, 2002. Practical Statistics and DPS Data Processing System [M]. Beijing: Science Press, 1–648. (in Chinese)
THATTAI D, KJERFVE B, HEYMAN W D, 2003. Hydrometeorology and variability of water discharge and sediment load in the Inner Gulf of Honduras, Western Caribbean [J]. Journal of Hydrometeorology, 4(6): 985–995.
WANG Qun-ying, GONG Dao-yi, 1999. Variation of rainfall over North China and its possible connection to El Nino [J]. Journal of Natural Resources, 14(2): 103–108. (in Chinese)
XU Jiong-xin, 1994. A study of zonal distribution of river basin erosion and sediment yield in China [J]. Journal of Sediment Research, (3): 32–39. (in Chinese)
ZHANG Jian-chun, WEI Xiang, SHI Zhi-gang et al., 2002. Variation of rainfall over east area of Jianghuai Watershed, Anhui Province and its connection to sediment transport in Chi River Watershed [J]. Journal of Soil and Water Conservation, 16(1): 116–119. (in Chinese)
Author information
Authors and Affiliations
Additional information
Foundation item: Under the auspices of the Natural Science Foundation of Anhui Education Office (No. 2003KJ102), and Special Fund Project of Anhui Provincial Irrigation Office (No. 2001-11)
Biography: ZHANG Jian-chun (1964–), male, a native of Nanjing, Jiangsu Province, professor, specialized in physical geography. E-mail: zhangjianchun@263.net
Rights and permissions
About this article
Cite this article
Zhang, Jc., Zhang, W., Li, Jh. et al. Relation between precipitation and sediment transport in the Dasha River Watershed. Chin. Geograph.Sc. 14, 129–134 (2004). https://doi.org/10.1007/s11769-004-0020-4
Received:
Issue Date:
DOI: https://doi.org/10.1007/s11769-004-0020-4