North Bank Plain Sonitpur

1. Low land low elevation
2. Medium land and medium rainfall
3. Upland and medium rainfall
4. Riverine and low elevation
5. Deep water or low elevation

Lakhimpur

1. Deep water situation with low elevation
2. Medium land with high rainfall
3. Low land situation with lower elevation
4. Upland with medium rainfall
5. upland with high rainfall
6. Foot hill situation with high elevation

Darrang

1. Foot hill with high elevation
2. Upland medium rainfall
3. Medium land medium rainfall
4. Low land low elevation
5. Deep water low elevation

Dhemaji

1. Deep water situation with low elevation
2. Medium land with high rainfall
3. Low land situation with lower elevation
4. Upland with medium rainfall
5. upland with high rainfall
6. Foot hill situation with high elevation

Jorhat

1. Humid alluvial flood prone
2. Char area Brahamaputra
3. Humid alluvial flood free
4. High land

Sivasagar

1. Alluvial flood free
2. Alluvial flood prone
3. High land
4. Hill area
5. Char-like area

Dibrugarh

1. Humid alluvial flood prone
2. Humid alluvial flood free
3. Sub-humid alluvial flood free

Tinsukia

1. Humid alluvial flood prone
2. Humid alluvial flood free
3. Sub-Humid alluvial flood free

Golaghat

1. Humid Alluvial Flood Prone
2. Humid Alluvial Flood free
3. Sub Humid Medium land
4. Sub Humid High land
Lower

Kamrup

1. Foot-Hill old Mountain Valley Alluvial plains Brahamaputa
2. Foot-Hill old Mountain Valley Alluvial Forest valley zone
3. Flood prone recent riverine alluvial plain
4. Char land
5. Flood free old riverine alluvial plain
6. Beels
7. Hills and Hillock old alluvial
8. High land tea garden

Borpeta

1. Foot-Hill old Mountain Valley Alluvial plains
2. Foot-Hill old Mountain Valley Alluvial Forest
3. Flood prone recent riverine alluvial plain
4. Char land
5. Flood free old riverine alluvial plain
6. Beels
7. Hills and Hillock old alluvial
8. High land tea garden

Dhubri

1. Flood prone recent riverine alluvial plains
2. Flood free old riverine alluvial plain
3. High land old alluvial
4. Char land

Nalbari

1. Humid alluvial flood free
2. Humid alluvial flood prone
3. Char land

Kokrajhar

1. Foot hill old mountain valley alluvial
2. Foot hill old mountain valley alluvial forest
3. Flood prone recent riverine alluvial plain
4. Flood free old riverine alluvial middle plain
5. Forest land old alluvial plains
6. Beels
7. High land tea garden
8. Char land

Goalpara

1. Foot hill old mountain valley alluvial
2. Flood prone recent riverine alluvial plains
3. Flood free old middle plains
4. Forest land old alluvial plains
5. Beels
6. Char land
7. Hills and Hillock old alluvial

Bongaigaon

1. Foot hill old mountain valley alluvial plain
2. Flood prone recent riverine alluvial plain
3. Flood free riverine alluvial plain
4. Forest land old alluvial plains
5. Char land including Beels
6. Hill and Hillock
Central

Nagaon

1. Humid alluvia non flooded
Brahamaputra 2. Sub-humid alluvial non flooded
valley 3. Alluvial flooded
4. Char land
5. Humid piedmont and high land
6. Hill area
7. Forest
8. Tea Estates

Marigaon

1. Humid alluvial non-flooded
2. Humid Alluvial Flooded
3. Char land and Char like area
Barak Valley

Hailakandi

1. Beel and hoar situation
2. Alluvial flood prone situation
3. Alluvial flood free situation
4. Plantation crops growing situation

Cachar

1. Beels and hoar situation
2. Alluvial flood prone
3. Alluvial flood free
4. Piedmont and plantation crop growing
5. Hills and forest

Karimganj

1. Beels and hoar situation
2. Alluvial flood prone
3. Alluvial flood free
4. Piedmout and plantation crop growing
5. Hills and forest
Hill zone

Karbi-Anlong

1. Medium hill medium rainfall
2. low rainfall
3. Low hills medium rainfall
4. Foot hills plain medium to low land

N.C. Hills

1. High hills high rainfall
2. High hills medium rainfall
3. high hills low rainfall
4. Medium hills high rainfall
5. Medium hills medium rainfall
6. Medium hills low rainfall
7. Low hills medium rainfall

Source : Strategic Research Extension Planning and District Agricultural Development Strategy