CN-China: Revised runoff curve number by using rainfall-runoff events data in China

Lian, Huishu1,2; Yen, Haw3; Huang, Jr-Chuan4; Feng, Qingyu5; Qin, Lihuan1; Bashir, Muhammad Amjad1; Wu, Shuxia1; Zhu, A-Xing6,7; Luo, Jiafa8; Di, Hongjie9; Lei, Qiuliang1; Liu, Hongbin1

2020-06-15

10.1016/j.watres.2020.115767

WATER RESEARCH   影响因子和分区

0043-1354

The curve number (CN) method developed by the United States Department of Agriculture (USDA) in 1954 is the most common adopted method to estimate surface runoff. For years, applicability of the CN method is a conundrum when implementing to other countries. Specifically, countries with more complex natural environment may require more dedicated adjustments. Therefore, the current CN look-up table provided by USDA might not be appropriate and could be questionable to be applied directly to regions elsewhere. Some studies have been conducted to modify CN values according to specified natural characteristics in scattered regions of mainland China. However, an integral and representative work is still not available to address potential concerns in general matters. In this study, a large set of rainfall-runoff monitoring data were collected to adjust CN values in 55 study sites across China. The results showed that the revised CN values are largely different from CN look-up table provided by USDA, which would lead to huge errors in runoff estimation. In this study, the revised CN (dubbed CN-China) provides better reference guidelines that are suitable for most natural conditions in China. In addition, scientists and engineers from other parts of the world can take advantage of the proposed work to enhance the quality of future programs related to surface runoff estimation. (C) 2020 Elsevier Ltd. All rights reserved.

Hydrology Curve number Surface runoff estimation Modeling

SCI ; EI

英语

NI论文

其他

National Natural Science Foundation of China[31572208] ; Special Fund for Agro-scientific Research in the Public Interest[201303089] ; Newton Fund[BB/N013484/1]

Engineering ; Environmental Sciences & Ecology ; Water Resources

Engineering, Environmental ; Environmental Sciences ; Water Resources

WOS:000530241100008

PERGAMON-ELSEVIER SCIENCE LTD

20201508401338

Rain ; Runoff ; Table lookup

Flood Control:442.1 ; Precipitation:443.3 ; Surface Water:444.1 ; Computer Programming:723.1 ; Agricultural Equipment and Methods; Vegetation and Pest Control:821

ENVIRONMENT/ECOLOGY

Web of Science

1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Key Lab Nonpoint Source Pollut Control, Minist Agr, Beijing 10081, Peoples R China
2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
3.Texas A&M Univ, Blackland Res & Extens Ctr, Texas A&M Agrilife Res, Temple, TX 76502 USA
4.Natl Taiwan Univ, Dept Geog, Taipei 10617, Taiwan
5.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
6.Nanjing Normal Univ, Key Lab Virtual Geog Environm, Minist Educ, Nanjing 210023, Peoples R China
7.Univ Wisconsin, Dept Geog, Madison, WI 53706 USA
8.AgResearch Ltd, Ruakura Res Ctr, Hamilton 3240, New Zealand
9.Lincoln Univ, Ctr Soil & Environm Res, Christchurch 7647, New Zealand

Lian, Huishu,Yen, Haw,Huang, Jr-Chuan,et al. CN-China: Revised runoff curve number by using rainfall-runoff events data in China[J]. WATER RESEARCH,2020,177.

Lian, Huishu.,Yen, Haw.,Huang, Jr-Chuan.,Feng, Qingyu.,Qin, Lihuan.,...&Liu, Hongbin.(2020).CN-China: Revised runoff curve number by using rainfall-runoff events data in China.WATER RESEARCH,177.

Lian, Huishu,et al."CN-China: Revised runoff curve number by using rainfall-runoff events data in China".WATER RESEARCH 177(2020).