4

Runoff

・ maximum moderate discharge

・ moderate amount of runoff in surface

・ hydrologic soils of group B

5

The unpaved areas

・ plateau with moderate slope less than 20%

・ expansion of flood resisting areas with fan shaped physiographic units

・ slow slope areas less than 5 %

6

Limited plant coverage

Lots of sediments

・ ground coverage less than 40%

・ remarkable plant traces

・ dispersed trees

7

Land usage

・ less than 25% planted

・ less than 50% being extremely grazed

・ less than 50% of the jungle coverage recently cut.

8

High lands erosion

・ the presence of various types of erosion in about 25% of the lands

・ wind erosion with sedimentation in water canals

・ moderate erosion

9

River erosion and sediment transportation

・ flow with depth and moderate continuity with frequent erosion at the river side or river bed