Ecorestoration of Banni Grassland - Global Restoration Network

Ecorestoration of
Banni Grassland
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Table 4: General Species Diversity Index at Dhordo Site
Site Details General Diversity Index Rank
Ploughed Area (Restoration site) 1.02 2
Unploughed Area (Restoration site) 1.03 1
Unprotected Area (site B) 0.88 4
Prosopis juliflora infested Areas (site C) 0.95 3
Shannon index (H) = -E [(ni/N) log (ni/N)], “ni”is the biomass ofith species, “N”
is biomass of all the species
Table 5: General Species Diversity Index at Bhirandiyara Site
Amendments Details General Diversity Index Rank
Ploughed Area (Restoration site) 0.66 2
Unploughed Area (Restoration site) 0.52 5
Broad Slopes (Restoration site) 0.54 4
Vertical Slopes (Restoration site) 0.68 1
Horizontal Slopes (Restoration site) 0.60 3
Mean diversity in the Bhirandiyara Site 0.60
Unprotected Area 0.24 6
unploughed area (H’=0.52). However, maximum
diversity of the Bhirandiyara restoration site was
recorded in the narrow vertical slopes (H’= 0.68).
All the three categories of slopes reflect higher
diversity than the unploughed area (Table 5 and
Figure 9).
5.2.1. Species Recorded at Dhordo
In Dhordo, total 25 species belonging to 20 genus
were recorded in the restoration site, which in turn
decreased to 18 species (72 per cent) in the unprotected
area (site B) and 17 species (68 per cent) in
the Prosopis juliflora infested area (site C).
The occurrence of species such as Cenchrus ciliaris,
Cyperus haspan, Chrysopogan fulvus, Scirpus sp.,
Setaria pallide, Themeda triandra, Tragus sp. and
Sporobolus pallidus was restricted only at the restoration
site whereas Sporobolus helvolus,
Aeluropus logopoides, Dichanthium annulatum,
Tetrapogan tenellus, Tragus sp., Chloris barbata,
Cyperus rotundas, Echinocloa sp., Cenchrus
setigerus, Eragrostis sp., Dinebra rotroflexa,
Gandhiro, Digera rnuiicata, Aristida funiculata and
Cressa erotica are some of the species found common
in all the three sites (A, B and C) at Dhordo
(Table 6 and Figure 10).
5.2.2. Species Recorded at Bhirandiyara
At Bhirandiyara, in total 12 plant species belonging
to 11 genus were recorded, which in turn decreased
to 6 species (50 per cent) in the unrestored area.
Further, within the restoration site, the number of
individuals of the species fluctuates under different
soil amendments. The species occurrence was high
at unploughed area (91.7 per cent) followed by
vertical slopes (75 per cent). In other areas, about
66.7 per cent of the species were recorded. Cyperus
haspan, Cyperus rotundus, Scirpus sp., Sporobolus
helvolus, Aeluropus logopoides and Cressa erotica
are the common species, which were recorded in all
the amendment areas of the restoration site as well
as unprotected site. Dichanthium annulatum was