Site Selection, Survey and Treatment Plan - Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics - page 62

Ancillary Species Determinants

Operational
Feasibility

Cultural
Preferences
16

Protection
Problems

Cost
Limits

Whether Can
Be fenced

Biotic Pressure Pests

1

Livestock Wild Animals

2 3

Level of Fencing
& Protection

Compensation for
Limiting Factors

Intensity of Watering
and Hoeing

Termite Rodents Other...

4 5 6

Low Medium High

Soil Soil Manuring/

7 8 9

Amendment Replacement Fertilizing

13 14 15

Minimal Medium High

(2-3 ops p.a.) (8-12 ops)

(5-6 ops)

10 11 12

Fig. 3.6 Ancillary determinants for choice of species in afforestation programmes

Table 3.2 Comparison of different types of fences
Serial Type of When Effectiveness Relative Labour Durability Main-

number fence recommended cost (%) tenance

1 2 3 4 5 6 7 8

1 Dry

stonewall

Hilly areas, where
a lot of loose,
large stones are
available

Good Low 100 Medium High

2 Ditch-cum-

bund

Where soil depth is
1.00 m or more,
soil is compact
but not rocky

Good Low 100 Medium Medium

3 Barbed

wire

Where soil is
sandy or
shifting sand;
along roads and
in urban areas
where no other
fence is feasible

Satisfactory High 20 Poor High

4 Masonry

wall

For buildings,
permanent
nurseries, or in
similar context

Very good Very high 35 Very good Little

A stone-wall fence (Fig. 3.7 ) is the ideal choice in hilly areas where adequate
stone is available on surface. In most hilly terrains this indeed is the case. Dry-
stone masonry wall of sufficient height and width is constructed to keep animals out.
Specifications may vary, but it is better to adhere to standard sections only. Cost of