Costing and Estimation ofWorks - Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics - page 165

Table 7.4 Model treatment plan for rehabilitation of degraded forest (RDF-400)
Sr. No. Item/activity Specifications of item Quantity Year of execution

1 Survey and demarcation Surveying the area with chain and compass, demarcating it with

monoliths or masonry pillars, and preparation of map of the area
1:5,000 scale, topo-map and treatment maps

50 ha Y1

2 Fencing Fencing the area with dry-stone wall of section SW-1, with suitable

provision for drainage of water at required number of places

3,000 m Y1

3 Nursery work Raising of plants in temporary nursery on site, including 20 % extra

plants for casualty in handling, transport etc.

24,000 nos. Y1, Y2

4 Soil and water conservation works 4.1 Digging of contour trench of section CT-1, at spacing suitable for

terrain, say from 10 m to 20 m depending upon slope, in soils of
hardness class:

Y1

(a) S3 75,000 m

(b) S4 15,000 m

(c) S5 75,000 m

4.2 Excavation of pits of standard size P-3 in the space between the
contour lines, in soils of hardness class:

Y2

(a) S3 5,000 nos.

(b) S4 10,000 nos.

(c) S5 5,000 nos.

750 m 3 4.3 Construction of loose-stone check dams Y2

4.4 Construction of saucers of 1 m diameter around the naturally growing
seedlings, in order to harvest and retain water, in soils of hardness class:

Y2

(a) S1, S2 or S3 1,000 nos.

(b) S4 or S5 500 nos.

4.5 Construction of saucers of 1 m diameter around the planted seedlings
or young plants, in order to harvest and retain water, in soils of
hardness class:

Y2

(a) S1, S2, or S3 5,000 nos.

(b) S4 or S5 15,000 nos.

5 Sowing of seeds for CVH, on

keylines

5.1 Sowing of seeds of tree and shrub species in two parallel rows at
20 cm spacing on the bunds of contour trench, along fence, etc. by

66,000 row-m Y2