How to measure the slope of a land?

Sammanfattning

Upland agricultural systems play a crucial role in global food production (Wang et al., 2022a). Agricultural landscapes developed in hilly and mountainous regions constitute a historical heritage that provides cultural and ecosystem services (Wang et al., 2022b).

Sloping land, defined as any land with a steepness exceeding 5%, serves as a vital resource for upland agriculture. The slope’s steepness directly influences soil depth, susceptibility to erosion, soil tillage, the utilization of agricultural machinery, irrigation, and plant adaptation. The steepness and length of the slope affect soil and water loss (Everest et al., 2021). Understanding slope is crucial for implementing proper management procedures in agricultural production on sloping land. Examples include managing surface runoff and preventing soil erosion by suitably designing the production system, adapting soil tillage, selecting tree and crop species, applying fertilizer and manure at correct rates and with suitable methods, pruning trees, choosing the time and methods of weed control, and managing soil vegetation cover, residues from trees and crops, and irrigation. A fundamental step toward this is to understand the steepness of the slope.

Publicerad i

Utgivare: ICRAF

SLU författare

• Van Hung, Do

  • Institutionen för växtproduktionsekologi, Sveriges lantbruksuniversitet
    
  • World Agroforestry (ICRAF)

• Pham, Huu Thuong

  • Institutionen för växtproduktionsekologi, Sveriges lantbruksuniversitet
    
  • World Agroforestry (ICRAF)

UKÄ forskningsämne

Markvetenskap
Jordbruksvetenskap

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https://res.slu.se/id/publ/140525