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[1]BU Jianxia,YE Gongfu,YOU Longhui,et al.Characteristics of Runoff and Sediment Yield of Different Land Use Patterns in Changting County， Fujian Province[J].Research of Soil and Water Conservation,2017,24(04):1-5.

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Characteristics of Runoff and Sediment Yield of Different Land Use Patterns in Changting County， Fujian Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 24 Number of periods: 2017 04 Page number: 1-5 Column: Public date: 2017-08-28

Title:: Characteristics of Runoff and Sediment Yield of Different Land Use Patterns in Changting County， Fujian Province

Author(s):: BU Jianxia¹, YE Gongfu², YOU Longhui², FENG Xiaoran¹, LI Die¹; 1. College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350001, China;
2. Fujian Academy of Forestry Sciences, Fuzhou 350012, China

Keywords:: runoff plot; soil and water conservation measures; rainfall; runoff depth; soil loss

CLC:: S157.1

DOI:: -

Abstract:: The characteristics of rainfall and runoff and sediment yield of different land use patterns in Changting Soil and Water Conservation Science Park in 2014 were analyzed by setting the standard runoff plot. The results showed that the annual runoff decreased in the sequence: natural slopes model (403 mm) > artificial grass pattern (93.7 mm) > farmland management mode (92 mm) > banned management model (75.2 mm) > pure forest of Pinus massoniana (69.6 mm) > orchard management model (60.8 mm). Annual soil loss decreased in the order: natural bare slopes mode (30.97 t/hm²) > farmland management mode (5.44 t/hm²) > banned management model (2.71 t/hm²) > pure forest of Pinus massoniana (2.43 t/hm²) > orchard management mode (1.6 t/hm²) > artificial grass model (0.47 t/hm²). Rain is the main reason for soil erosion, the main types of rainfall causing soil and water losses are rain and torrential rain; rainfall and I₃₀ are the key factors relatively correlating with runoff. The relationship between runoff depth and rainfall could be well fitted by linear regression in natural bare land and banned the management mode. The relationship between runoff depth and rainfall could be well described by power function in the other management modes. In addition to the artificial grass model, the relationship between runoff depth and soil loss in other land use patterns could be well fitted by using linear regression. Compared with other land use types, benefit of soil and water conservation was the best in the orchard management mode.

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