What a silvicultural system is
•A planned
program of
silvicultural
treatments in a
stand to achieve
objectives
•It includes
harvesting,
regeneration and
stand tending
Harvesting
Regeneration
Tending
introduCtion
What a coppice system is !
A silvicultural systems in which the new
crop originates mainly from stool coppice
The rotation of the coppice is short
Limited to hardwood species
Also called low forest system
intd........
Methodology
This term paper was prepared through
literature survey, by reviewing
•internet,
•books and
•publications
Method of Coppicing
•Best season for coppicing: little before the
growth starts in spring.
•Large working area: Difficult to fell trees in
short period of time, felling is allowed over a
period of dormancy, i.e. from November to
March but not later from March and before
November.
•The stumps ht: usually 5 to 25 cm
•trees cut: on a slight angle to prevent water from
pooling in a stump
discussion
Types of coppice systems
(On the basis of pattern of felling)
Simple coppice system
•All trees of the coupe are clear felled with no
reservation. The crop produced under this system
is even aged.
The coppice of two rotation system
•Modification of simple coppice system,
•At the end of the first rotation, a few selected
poles are left scattered singly over the coupe in
the second rotation to attain bigger size
discussion....
Types cont...
The shelterwood coppice system
•Modification of simple coppice system for
frosty localities by leaving shelter trees
The coppice with standard system
•Part of the crop is retained to form an uneven
aged overwood.
•The standards are generally of some wind
firm, valuable species and may be even of
species other than the coppice
Discussion....
The coppice with Reserve System
•well grown saplings and poles are retained and the
rest is felled
•object are improving the crop, providing
protection against frost and erosion, supplying
seed, protecting valuable species
Coppice Selection System
•felling is carried out on the principles of selection
system but regeneration is obtained by coppice
Discussion....
Types cont...
Condition for Applicability
Simple coppice system
•where the factors of locality are low
•incapable of producing larger sized timber
•where there may be demand for fuel, poles and
small sized timbers only
Coppice with two rotations or coppice with
standards
•applied if large sized timber also required
Discussion....
Application in Nepal and their findings
•Research plots on Silvicultural systems were
established at Butwal in 1988. It was found
simple coppice is potentially the best one to
produce fuel and fodder from tropical Sal forest
in short rotation
•in Sagarnath and Nepalgunj Forest Development
Project appied on Eucalyptus and sisoo
plantations
Discussion....
At Tarahara: Two plots of cassia siamea and
Eucalyptus camaldulensis on simple coppice
system were established in 1990. The result
showed both the species are good for fuel and
wood production. cassia siamea is rather better
than E. camaldulensis
In Gorkha and Dadheldhura, simple coppice was
applied in degraded Sal CF during 050s. The
coppice gave good result
Discussion....
Application .......
•Some best species for coppicing are: shorea robusta,
Acacia catechu, Schima walichii, syzigium cumini, litsea
monopetala, Dalbergia , Albizia , Eucalyptus ,
Castanopsis , quercus etc
•Very simple in application, suitable for private or village
common lands, Near settlements
•Reproduction is usually cheaper in comparision to seed
•The yield from the first coppice crop is higher than that of
the original seedling crop of the same age
•In the earlier stages, coppice growth is more rapid, and the
poles produced are straighter and cleaner than in the same
species when raised from seed
conclusion
Acharya B and Acharya KP 2004. A preliminary result on simple
coppice management of Sal (Shorea robusta) forests of Nepal. Banko
Janakari (14) 1: 51-53
Acharya, KP, Tamrakar PR, Gautam G, Regmi R, Adhikari A
and Acharya B 2002. Managing Tropical Sal Forest (Shorea robusta)
of Nepal in short rotations: findings of a 12 year long research. Banko
Janakari (12) 1: 71-75
Thapa HP and Subedi N 2001. Growth and fuelwood production of
cassia siamea and Eucalyptus camaldulensis under short rotation in the
eastern terai of Nepal. Banako Janakari (14) 2: 34-41
Thompson IS 1990. Community Forestry: Silvicultural aspects.
Banko Janakari (2) 4:345-351
Khanna LS and Prakash R 1979.Theory and Practice of Silvicultural
systems. International Book Distributers, Dehradun, India.
Forest Practices Code of British Columbia Act, April 1995.
Silvicultural Systems Guidebook.
http://www.coppice.co.uk/pice.co.uk
RefeRences