Sammanfattning

Productive agricultural land is vital for food production. To help secure the productivity of drained agricultural soils, diches need to be intermittently maintained. Maintenance work is costly, however, so ditch segments in most need of maintenance should be prioritized. Here, we present a procedure for identifying drainage ditch segments likely to need maintenance based on susceptibility to soil erosion by water flowing in the ditch, evaluated using a cohesive strength meter (CSM). An important part of the procedure is to relate the pressure of the CSM jets to pressures acting on the soil. The relationship between CSM jet pressure and pressures at the soil surface was established based on measurements made with a pressure sensor plate and was applied to obtain several values for pressure at the surface, which were used in turn to estimate critical shear stress for erosion. The results showed that the CSM-based method was able to identify differences in critical shear stress for erosion for different field soils. This information can be useful in identifying drainage ditch segments that should be prioritized for maintenance work.

Nyckelord

Drainage data acquisition; Drainage maintenance; Drainage performance evaluation; Soil erosion

Publicerad i

Journal of the ASABE
2023, Volym: 66, nummer: 4, sidor: 879-885
Utgivare: AMER SOC AGRICULTURAL AND BIOLOGICAL ENGINEERS

SLU författare

• Wesström, Ingrid

  • Institutionen för mark och miljö, Sveriges lantbruksuniversitet
    

• Joel, Abraham

  • Institutionen för mark och miljö, Sveriges lantbruksuniversitet
    

Globala målen

SDG15 Skydda, återställa och främja ett hållbart nyttjande av landbaserade ekosystem, hållbart bruka skogar, bekämpa ökenspridning, hejda och vrida tillbaka markförstöringen samt hejda förlusten av biologisk mångfald
SDG2 Avskaffa hunger, uppnå tryggad livsmedelsförsörjning och förbättrad nutrition samt främja ett hållbart jordbruk


UKÄ forskningsämne

Jordbruksvetenskap


Publikationens identifierare

DOI: https://doi.org/10.13031/ja.15393

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/126633