All the Reserved Forests listed above are a part of the sub - montane tract known as Bhabhar area. The soil over most of this area is dry sandy loam superimposed ofn beds of pebbles with very thin layer of humus. The vegetation of these forests correespons with the category 'Eastern Terai Sal type 3C/C1C descrbed by Champion and Seth (1968). The floristics of this zone as per the classification of Champion & Seth (1968) is summarized below.

• Shorea robusta, Terminilai belerica, Stereospurmum personatum, Schima wallichi, Albizia spp., Cedrela toona, Syzygium cumini.
   

• Dilenia pentagyna, Careya arborea, Callicarpa arboreya, Premna app., Spondias app.
   

• Murraya exotica, Trema orientalis, Leea aculeata, Coffea bengalensis, Clerodendrum infortunatum, Morinda austifolia, Solanum indicum.
   

• Alpinia allughas, Flemingia strobilifer, Laportea crenualata.
   

• Microstegium ciliatum.
   

• Spatholobus roxburghii, Acacia pennata.

Historically, the forests of the Aie Valley Division have been a home for diverse species of wildlife represented by some of the highly endemic and endangered species of the area (Appendix - I). During the course of the survey however, not many species could be sighted in these forests. This fact could be attributed to a great extent to the large scale biotic pressures, and the rampant incidences of fire and insurgency in the area that have led to widespread implications on the overall integrity of the forested habitats.