Costing and Estimation ofWorks - Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics - page 176

Table 7.6 Cost analysis of RDF-400 over different years (area 50 ha)
Year Cost in terms of man-day or mdeq Cost in the year (%)

US SS SK Total Material Total cost

Y1 5,820 70 90 6,195 525 6,720 44.56

Y2 4,880 0 60 5,060 500 5,560 36.87

Y3 1,130 0 8 1,154 26 1,180 7.82

Y4 1,130 0 8 1,154 26 1,180 7.82

Y5 440 0 0 440 0 440 2.92

Total 13,400 70 166 14,003 1,077 15,080 100.00

US unskilled, SS semi-skilled, SK skilled, mdeq man-day equivalent

7.2.2 Reforestation of Barren Hills (RBH)

Areas that have little or no natural rootstock (number of stumps per hectare is less
than 50) require more intense working and higher densities of artificial planting
(an activity that is called reforestation if the area had forest 50 years ago or till later,
and afforestation if it had no forest during the last 50 years). This model differs
from the RDF model in two respects: no treatment is provided for existing rootstock,
such as cutback, saucers, etc., and number of nursery-raised seedlings to be planted
is 800 per hectare or more. Table 7.8 shows model treatment for RBH-600. Detailed
cost estimate, year-wise phasing of cost, and cost at different densities can be worked
out in the same manner as in the RDF model.

7.2.3 Fuelwood and Fodder Plantation (FFP)

This model is aimed at afforesting village commons to meet the villagers'needs for fu-
elwood and fodder. Lands are traditionally not under forest departments even though
these may have been forested. Land is probably managed by local communities.
Little rootstock is assumed in these lands which would be mostly barren and de-
graded. The main objective is production of fuel and fodder rather than conservation
or ecological restoration (e.g. as in RDF). The species selected in this model should
be suitable for tree fodder production and should coppice well, since these might be
harvested periodically once the trees are mature. Table 7.9 shows the model treat-
ment plan for an FFP having a density of 1,000 plants per hectare. If land is flat and
contour trenches are not required as much as provided in the model, the number of
pits should be increased to 1,100 per hectare, corresponding to a mean spacing of
3m × 3m.