Effects of Different Soil and Water Conservation Measures on Soil Erosion of Farmland under Natural Rainfall Condition
WANG Shiran1，ZHANG Qi1，CUI Jiahui2，LIU Jian3，WANG Yu1**
1. College of Resources and Environment， Jilin Agricultural University， Changchun 130118， China；
2. Environmental Monitoring Center Station of Jilin Province， Changchun 130033， China；3. Chang?
chun Heli Soil and Water Conservation Technology Co. ， Ltd. ， Changchun 130033， China
Abstract：Jilin province is one of the provinces with more sloping arable land. Soil erosion on slop‐
ing arable land is a continuous natural disaster mainly faced by Northeast China and is an ecological
and environmental issue that people are concerned about. In this study, under the condition of natu‐
ral rainfall, the collection of runoff was used to obtain the amount of sediment and runoff, and the
main effect of different soil and water conservation measures on the prevention and control of soil ero‐
sion on slope farmland was discussed. The results show that: the soil erosion amount of the ridge
plant zone, horizontal terraces of ridges and sloping ridge farming is as follows: sloping ridge planting> ridge plant zone> horizontal terrace; the measures of ground stalk plant bands at 5° and 10° slopeshave obvious effects on soil erosion control; the annual runoff of the ridge horizontal terraces with a slope of 10° is 7.83 mm, and the soil retention rate is as high as 98.09%; compared with the ridge cul‐
tivation along the slope, the sand production and rainfall erosion capacity of the ridge plant zone and the horizontal terraces on the soil ridge have reached a very significant correlation. It has a very significant correlation with rainfall erosion. It shows that the ridge plant zone and the horizontal terraces have good soil and water conservation effects. Ground ridge plant zones and terraces can significantly reduce the amount of soil erosion. Under the action of ground ridges and terraces, they can effectively intercept surface runoff, slow down the flow rate of runoff, block the flow of water, and thus reduce runoff.
