| District |
Climatic zone |
Agro-ecological Region |
Annual rainfall |
Altitude |
Major soil groups |
Terrain |
| Ratnapura |
Intermediate zone |
IL1 |
>1020mm |
<300m |
"Red-Yellow Podzolic soils with strong mottled sub soil, Low Humic Gley soils, Red-Yellow Podzolic soils with soft and hard laterite, and Regosols on old red and yellow sands" |
"Rolling, undulating and flat" |
| IM2 |
1150mm |
300-900m |
Red Brown Earth and Immature Brown Loams |
"Rolling, hilly and steep" |
| Wet zone |
WL1 |
>2525mm |
<300m |
"Red-Yellow Podzolic soils, and Red-Yellow Podzolic soils with semi prominent A1 horizon" |
Rolling and undulating |
| WL2 |
>1900mm |
<300m |
"Red-Yellow Podzolic soils, Red-Yellow Podzolic soils with strong mottled sub soil; Low Humic Gley soils" |
Rolling and undulating |
| WM1 |
>3150mm |
300-900m |
"Red-Yellow Podzolic soils, and Red-Yellow Podzolic soils with semi prominent A1 horizon" |
"Steeply dissected, hilly and rolling" |
