| Weather | Lots of sediments (10) | Moderate sediments (5) | Low sediments (0) |
| ・ raining for some days with short cycles of thunder ・ frequent heavy thunders ・ dry climate with heavy rain ・ run off of snow melting | ・ moderate rainfalls ・ frequent thunders | ・ wet climate and rainfalls with low intensity ・ mostly snowfall ・ freezing and melting ・ dry climate | |
| Run off | Lots of sediments(10) | Moderate sediments (5) | Low sediments(0) |
| ・ high rate of discharge in surface ・ high amount of water flow in surface ・ hydrologic soils of group D ・ hydrologic soils of group C | ・ maximum moderate discharge ・ moderate amount of run-off in surface ・ hydrologic soils of group B | ・ low amount of maximum discharge in surface ・ low amount of run-off in surface ・ unique surface run off ・ hydrologic soils of group A | |
| The unpaved areas | Lots of sediments (20) | Moderate sediments (10) | Low sediments (0) |
| ・ deep slope areas more than 30% ・ high altitude, ups and downs ・ slope beds ・ flood resisting ups and downs | ・ plateau with moderate slope less than 20% ・ expansion of flood resisting areas with fan shaped physiographic units | ・ slow slope areas less than 5 % ・ expanded alluvial plain | |
| Limited plant coverage | Lots of sediments (10) | Moderate sediments (5) | Low sediments (0) |
| ・ land coverage less than 20% ・ dispersed plant coverage ・ the lack of pebble on the ground | ・ ground coverage less than 40% ・ remarkable plant traces ・ dispersed trees | ・ the ground surface completely covered by plants, more than 70% traces of plant and boulders ・ low permeability of rain into erodible materials | |
| Land usage | Lots of sediments (10) | Moderate sediments (5) | Low sediments (0) |
| ・ more than 50% planted ・ the whole ground is like dispersed pasture ・ the plants recently burned ・ the recently cut jungle coverage ・ lots of road shears | ・ less than 25% planted ・ less than 50% being extremely grazed ・ less than 50% of the jungle coverage recently cut. ・ the presence of usual roads and other constructions | ・ implantable land ・ limited amount of grazing ・ trees not recently cut ・ with road or trails | |
| High lands erosion | Lots of sediments (10) | Moderate sediments (5) | Low sediments (0) |
| ・ erosion plough, gally and a mass in more than 50% of the lands ・ high amount of erosion | ・ the presence of various types of erosion in about 25% of the lands ・ wind erosion with sedimentation in water canals ・ moderate erosion | ・ the absence of erosion signs ・ low erosion | |
| River erosion and sediment transportation | Lots of sediments (10) | Moderate sediments (5) | Low sediments (0) |
| ・ frequent erosion at the river side ・ the erosion at the head and the decrease of their height | ・ flow with depth and moderate continuity with frequent erosion at the river side or river bed | ・ wide and low deep with flat slope of streams ・ river bed on huge rock masses with boulders or with good plant coverage on the surfaces ・ controlled streams |