Hydrological Units

Watersheds has hydrological units . These hydrological units are based on the area covered by these units

Broadly the watersheds can be classified as:

classification of watersheds

1. Region————————— 270 lakh -1130 lakh ha
2. Basin —————————- 30 lakh -300 lakh ha
3. Catchment
   1. Catchment——————- 10 lakh-50 lakh ha
   2. Sub Catchment————– 2 lakh-10 lakh ha
4. Watershed
   1. Sub Watershed——————- 10,000-50,000 ha
   2. Milli Watershed————– 1,000-10,000 ha
   3. Micro Watershed————- 100–1,000 ha
   4. Mini Watershed ————– 1-100 ha