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[1]LUO Jian,ZHENG Zi-cheng,QIN Feng,et al.Surface Runoff and Sediment Yield Characteristics of Sloping Cropland during Maize Growth Season[J].Research of Soil and Water Conservation,2014,21(03):11-15.

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Surface Runoff and Sediment Yield Characteristics of Sloping Cropland during Maize Growth Season

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 21 Number of periods: 2014 03 Page number: 11-15 Column: Public date: 2014-06-28

Title:: Surface Runoff and Sediment Yield Characteristics of Sloping Cropland during Maize Growth Season

Author(s):: LUO Jian¹, ZHENG Zi-cheng¹, QIN Feng^1,2, LI Ting-xuan¹, KONG Xiang-dong²; 1. College of Resources and Environment Science, Sichuan Agricultural University, Chengdu 611130, China;
2. Sichuan Forestry Inventory and Planning Institute, Chengdu 610081, China

Keywords:: maize; purple soil; tillage practice; runoff amount; sediment yield

CLC:: S157.1

DOI:: -

Abstract:: In order to clarify the process of erosion dynamic change at the different growth stages of maize, the simulated rainfall experiments and runoff plot experiment were employed to investigate characteristics of surface runoff and sediment yield among different tillage practices (flat planting, longitudinal ridge and cross ridge) during the period of corn maturity. The results showed the runoff amount was the minimum for the conventional tillage before planting and for the ridge tillage in the jointing stage—heading stage of maize under the condition of rainfall intensity 1.0 mm/min. The runoff amount was the minimum for the ridge tillage in the jointing stage—heading stage of maize under the condition of rainfall intensity of 1.5 mm/min. Under the condition of rainfall intensity of 2.0 mm/min, the runoff amount was the minimum for the ridge tillage at the seedling—jointing stage of maize. Under the condition of rainfall intensity of 1.0 and 1.5 mm/min, the runoff generation time was the shortest at the tasseling—maturity stage of maize for all tillage practices. However, the runoff generation time was the shortest at seedling—jointing stage under rainfall intensity of 2.0 mm/min. This study provides a certain theoretical basis for the effective prevention and control of soil erosion.

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