Silvicultural Systems
Classification
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Guidelines and tips
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Silviculture systems and its scope., Slides of Silviculture
Silviculture systems and its scope and objectives.
Typology: Slides
2021/2022
1 / 15
This page cannot be seen from the preview
Don't miss anything!
Related documents
Partial preview of the text
Download Silviculture systems and its scope. and more Slides Silviculture in PDF only on Docsity!
Silvicultural Systems
Classification
Application of Silvicultural Systems
Main Considerations
- (^) General framework of a scheme
- (^) Division of area
- (^) Allotment of areas for felling
- (^) Regulation of yield
All basically questions of forest management
Silvicultural Systems
- (^) Evolved in Europe
- (^) All Foresters / Forestry Scientists
- (^) Should know these
- (^) Indian Forestry has modified these at times
- (^) Scope for modifications in India
Classification
- (^) Various Systems have been proposed
- (^) There are practices of pre 19th^ century
- (^) Most agree with the basis laid down
- (^) By RS Troup
We shall follow this for our purpose
High Forest Systems – Crops of Seedling origin
Felling & Regeneration, for the time being, concentrated
on “part of the forest area only”
A
B
Felling & Regeneration
distributed continuously over the whole area:
crop wholly uneven-aged = “Selection System”
Accessory Systems
Arising out of other systems
C
I
Felling & Regeneration, for the time being, concentrated
on “part of the forest area only”
A
Old crop cleared by one single felling –even-aged crop
“Clear Cutting / Felling System”
System of Successive Regeneration Felling
Old crop cleared two / more successive fellings
Crop more or less even aged / uneven-aged
“Shelter-wood Systems”
Regeneration fellings distributed
Over whole compartment / sub-compartment
Canopy opening even: young crop more or less even-aged and “uniform” “Uniform System” Opening of the canopy by scattered gaps: Young crop more or less even-aged “Group System” Opening of canopy irregular and gradual: Young crop somewhat uneven-aged “Irregular Shelter-wood System”
a
i
ii
iii
Regeneration fellings confined to
Certain portions of the compartment /
sub-compartment
b
Felling in strips “Strip System” ( Various ) Felling starts in internal lines Advancing outward in wedge formation “Wedge System”
i
ii
Coppice Systems – Crops, in part, of vegetative origin II
Crop consisting entirely of vegetative shoots
A
Crop removed by clear felling, even aged “Coppice System” Only a portion of shoots cut at each felling “Coppice Selection System”
Crop consisting partly of vegetative shoots Partly of trees, generally of seedling origin “Coppice with Standards System”
B
I High Forest Systems I A 1. Clear Felling System I A 2. a ) ( i ) Uniform System I A 2. a ) ( ii ) Group System I A 2. a ) ( iii ) Irregular Shelter-wood System I A 2. a ) ( i ) Strip System I A 2. b ) ( ii ) Wedge System
I B
Selection System I C 1. Two Storied High Forest I C 2. High Forest with Standards II Coppice Systems II A 2. Coppice Selection System
II B
Coppice with Standards System
II A 1.
Coppice System