Table 1. Enviromental conditions of the sites

Characteristics	Site 1	Site 2
Soil texture	Smooth, clay(clay stone, clay content > 35%)	Rather rough, sandstone(sand stone, clay content 18%–35%)
Landform	Tectonic plains, undulating land	Cuesta escarpment
Elevation	101 masl	99 masl
Slope	35%, middle slope	34%, upper slope
Topography	Hills with rather steep slopes	Low hills are slightly slope

masl: meter above sea level.