Experimental Study on First Flush Effects of Storm-Runoff on Slope Field

Abstract:

Precipitation runoff is the main driving factor which leads to soil erosion and nutrient transfer. In the experiment, an artificial rainfall simulator was used to study the migration amount of organic matter, nitrogen, phosphorus and potassium, volume of the soil erosion and its particle size composition in the earlier runoff, under a certain condition of rainstorm intensity and different slopes. The test results show that the migration amount of nitrogen, phosphorus, potassium, etc. is more than 70% of the respectively total loss in the first 30 minutes of runoff. Under different slope conditions, clay content in the runoff sediment within the first ten minutes is more than subsequent 10min and the rest time. According to the test results, under different slope conditions, there are obvious initial flushing effects of storm-runoff.

• Periodical: Advanced Materials Research (Volume 811)
• Pages: 266-272
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.811.266
• Online since: September 2013
• Authors: Shu Fen Chen, He Li Wang, Jing Liu, Xiang Rui Kong
• Keywords: First Flush Effects, Slope Field, Storm-Runoff

References

[1] Shao MingAn and Zhang Xingchang: World Sci-tech R & D Vol. 23, No. 2 (2001), pp.7-12.

[2] Liu Huifang, Wei Tianxing, Zhu Qingke and Yao Aijing: Bulletin of Soil and Water Conservation, Vol. 24, No. 4 (2004), pp.19-22.

[3] Kong Gang, Wang Quanjiu and Fan Jun: Journal of Soil and Water Conservation Vol. 21, No. 3 (2007), pp.14-18.

[4] Liu Bingzheng, Li Guanglv, Wu Faqi and Zhao Xiaoguang: Journal of Soil and Water Conservation Vol. 9, No. 2 (1995), pp.77-86.

[5] Fu Tao, Ni Jiupai, Wei Chaofu and Xie Deti: Plant Nutrition and Fertilizer Science Vol. 9, No. 1 (2003), pp.71-74.

[6] Ma Kun, Wang Zhaoqian, Chen Xin and You Li: Journal of Soil and Water Conservation Vol. 16, No. 3 (2002), pp.16-19.

[7] Kang Lingling, Zhu Xiaoyong, Wang Yunzhang, Wu Qing and Wei Yichang: Acta Pedologica Sinia Vol. 36, No. 4 (1999), pp.536-543.

[8] Jiang Rui, , Zhu Bo, Tang Jialiang and Luo Zhuanxi: Shuili Xuebao Vol. 40, No. 6 (2009), pp.659-666.

[9] Ahuja L R, Sharpley A N, Yamamoto M, et al: Water Resour. Res. Vol. 17 (1981), pp.969-974.

[10] Ahuja L R.: Soil Sci Soc Am J, Vol. 5 4(1990), pp.312-321.

[11] Ahuja L R, Sharpley A N, Lehman O R: J Environ Qual Vol. 11(1982), pp.9-131.

[12] Alberts EE, Moldenhauer WC: Soil Sci Soc Am J Vol. 45(1981), pp.391-395.