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[1]WANG Jianhua,QIU Fan,XIE Fuqian,et al.Effects of Cleaning Tillage on Soil Erosion Characteristics of Lateritic Red Soil on Slope in Orchard[J].Research of Soil and Water Conservation,2022,29(03):12-17.

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Effects of Cleaning Tillage on Soil Erosion Characteristics of Lateritic Red Soil on Slope in Orchard

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 29 Number of periods: 2022 03 Page number: 12-17 Column: Public date: 2022-04-20

Title:: Effects of Cleaning Tillage on Soil Erosion Characteristics of Lateritic Red Soil on Slope in Orchard

Author(s):: WANG Jianhua¹, QIU Fan¹, XIE Fuqian², WEI Shi², LIANG Zhixin², LI Guifang¹; (1.College of Agriculture, Guangxi University, Nanning 530004, China; 2.Guangxi Monitoring Station of Soil and Water Conservation, Nanning 530023, China)

Keywords:: orchard; cleaning tillage; natural rainfall; soil erosion

CLC:: S157.1

DOI:: -

Abstract:: In order to explore the influence of rainfall and treatment measures on the soil erosion characteristics on slope of the orchard in southern red soil, based on the field observation experiment of in-situ runoff plot, the soil erosion characteristics on slope of the orchard under cleaning tillage and cutting treatment were discussed. The results show that the rainfall in the study area mainly concentrated from May to September in 2018, and mainly concentrated from March to August in 2019; furthermore, more than 80% of the rainfall in the study area during that period was erosive rainfall; annual runoff, sediment yield on slope of orchard in 2018 and 2019 were more than those in cutting plots, and the difference of sediment yield between these two treatments was more obvious. The data measured after each rainfall indicated that the amount of runoff and sediment yield on slope of orchard changed slightly from March to April, but fluctuated from May to September, and the fluctuation ranges of sediment yield under cleaning tillage treatment were even greater in 2018; runoff fluctuated greatly from February to March and July to September, while the variation was flat from April to July, besides, the sediment yields were low and stable from September to October, and demonstrated significant fluctuation the other periods in 2019. Compared with the cleaning tillage treatment, cutting treatment could reduce sediment yield on slope of orchard under heavy rainstorm and large heavy rainstorm. The sediment yields under moderate rain, heavy rain and heavy rainstorm under cutting treatment were significantly reduced, and the reduction effect was obvious under heavy rain. Under the cutting treatment and cleaning tillage, the slope runoff was significantly correlated to the rainfall duration and more significantly correlated to the rainfall amount. The result of this study can provide the theoretical basis and reference for the prevention and control of soil erosion on slope of orchard in red soil hilly area of south China.

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Last Update: 2022-04-20