ChapterIII(a) - Pollution Control Board, Assam

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EIA Report Proposed INDAdept G Project – Guwahati Refinery Chapter 33.3.4. Landuse and landcover of the areaRemote sensing and Geographic Information System (GIS) provides an effective tool forthe Land-use and Land-cover study of the area. It gives valuable information on the forestcover, vegetation, anthropogenic changes in the various land uses and land covers. Guwahaticity is mostly covered by human settlements. The city is situated on an undulating plain withvarying altitudes above the mean sea level.In this study, the entire study area is classified on the following Land-use Land-cover(LULC) classes(a) River(b) Sandbar(vegetated/non vegetated)(c) Built up(d) Hilly settlement(e) Open forest with hilly settlement(f) Open forest(g) Dense forest(h) Agricultural land(i) Wetland/Water bodyThe land area under each land use type is shown in Table 3.1 and is also shown separately inFigure 3.5 below.Table 3.1. Area covered by different LULC classesLULC classesArea (sq km)River 21.048Sandbar (non vegetated) 35.576Sandbar (Vegetated) 3.502Built up 105.097Hilly settlement 19.958Open Forest with hilly settlement 24.311Open forest 2.356Dense forest 59.764Agricultural land 37.807Wetland/water body 4.734Total area 314.15330
EIA Report Proposed INDAdept G Project – Guwahati Refinery Chapter 3Fig. 3.5. Land use Land cover map of the study areaRiversThe Brahmaputra River is the trunk drainage of the Guwahati city which is situated on thesouth bank of the river. The river flows from east to west splitting Guwahati into northGuwahati and south Guwahati. The Brahmaputra River is a braided river and is composed ofnumerous sediment bars which cover half of the river. Apart from the Brahmaputra river,several small streams such as the Bharalu, the Basistha, the Barnadi cover the area. TheRivers cover about 60 sq km of the area including the sediment bars. The river water covers 7% of the total study area.Built-up areaThe study area is mostly covered with urban settlement. The urban built-up covers 105 sqkm of the study area excluding the hilly settlement. The distribution of human settlements areuneven covering the hilly terrain, the forests, the wetlands and the cultivable land towards thenorth bank and a small area in the East of the south bank of the Brahmaputra. The settlementin the area extends to the wetlands and the open forest.Wetlands in the city are dying due to the increase in built up area and also the openforests are in danger due to the continuous encroachment through human settlements cuttingthe hills and destroying the forest cover. The built up in the study area can be classified intourban built up, hilly settlement and hilly settlement growing towards the open forestcategorized as open forest with hilly settlement LULC class.31
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ChapterIII(a) - Pollution Control Board, Assam

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