Studies on Agricultural Terrain Profiles (2)

Measurements and Evaluations of Agricultural Terrain Profiles

Abstract

Profiles of a grassland in Hokkaido Univ. were measured by the apparatus which was applied the slope integration method and were evaluated. Some conclusions were as follows.
1. Like other rough terrains, no periodic components were observed in profiles of grassland.
2. Judging from power spectral densities, the roughness of the south-north profiles was almost the same as that of the east-west profiles. And the roughness of the grassland was in the range from ‘very poor’ to ‘poor’ of the recommended classification by ISO/TC 108.
3. Very little relationship was found between each profile by calculating the frequency response function.
4. The conclusions obtained from the above results are that the rough ground like the examined grassland can be recognized as a set of independent profiles.