rshed 
  
da-Khairi 
has been 
identified 
low land, 
n forest, 
ut scrub), 
IAPRS & SIS, Vol.34, Part 7, “Resource and Environmental Monitoring”, Hyderabad, India, 2002 
Table 1: Soil Map - descriptive legend 
  
S. Soil Series 
No. Association 
I. Khairi-1 Shallow, somewhat excessively 
Rock drained, dark reddish brown, 
(SYR 3/2), clayey-skeletal soils 
with moderate erosion; associated 
Soil Characteristics 
  
outcrop 
With rock outcrop 
  
2. Khairi-2 Very shallow, excessively 
drained, dark reddish brown (5YR 
3/2), clayey-skeletal soils with 
very severe erosion 
  
3. Khairi-3 : 
Khairi-4 
Very shallow, well drained, very 
dark greyish brown (10YR 3/2), 
clayey-skeletal soil with moderate 
erosion; associated with 
Very shallow, well drained, very 
dark greyish brown (10YR 3/2), 
clayey soil with moderate erosion 
  
4. Khairi-4 : 
Khairi-3 
Very shallow, well drained, very 
dark greyish brown (10YR 3/2), 
clayey soil with moderate erosion; 
associated with 
Very shallow, well drained, very 
dark greyish brown (10YR 3/2), 
clayey-skeletal with moderate 
erosion 
  
S. Kirmati : Slightly deep, moderately well 
Panjri drained, very dark greyish brown 
(10YR 3/2), very fine soils with 
moderate erosion; associated with 
Deep, moderately well drained, 
very dark greyish brown (10YR 
3/2), fine soils with moderate 
erosion 
  
6. Shivmarka : 
Panjri drained, calcareous, dark brown 
(10YR 3/3), fine soils with slight 
erosion, associated with 
Very deep, moderately well 
Deep, moderately well drained, 
very dark greyish brown (10YR 
3/2), fine soil with moderate 
erosion 
  
  
  
  
  
3.4 Slope 
Slope map of the watershed was prepared based on contour 
information available on SOI toposheet and subsequently 
validated using ground truth information. Five slope classes 
were identified in the study area viz. nearly level (0-1%), very 
gently sloping (1-3%), gently sloping (3-5%),moderately 
727 
sloping (5-10%) and moderately steep sloping (15-30%). Slope 
map of the watershed is shown in figure 4. The data reveal that 
nearly 84 per cent area of the watershed is under very gently (1- 
3%) to gently sloping (3-5%) class whereas 11 per cent area is 
under nearly level land with slope of 0-1 per cent. Moderately 
sloping and moderately steep sloping classes occupy 2.8 and 
2.1 per cent area of the total watershed. 
  
   
fr 
1I Qa 
up es 
Fx 
M Tr * 
de m / ; > 
B curn LE] Trin forest 
L.] Snge ace L.] Degraded forest 
CI Dole crop [7] Wastelands with scrubs 
LU Falow Land Wastelands without sab 
BH Mid. derce forest EH Nas 
  
  
  
Figure 3 : Land use/Land cover map of Nanda-Khairi 
watershed 
  
  
F7] Nearhevelit- 1%) [2] Moderate sicping(5- 1099] 
C1 Wary gently siaping(1 ax; EI Modaratety steep 15.35%) 
LL] Genty sioping(3-595) 
  
  
  
Figure 4 : Slope map of Nanda-Khairi watershed 
3.5 Soil Erosion Assessment and Mapping 
3.5.1 Assessment: Universal Soil Loss Equation (USLE) model 
was used for assessment of soil loss in the watershed. The 
advantage of using this model was that major input parameters