Factors to consider when restocking Flashcards
1
Q
Factors to consider
A
- Method of restocking
- Objectives
- Site factors
- Plant spacing
- Planting
- Protection
- Labour
- Future maintenance
- Grants
- Methods of mixing
- Species
2
Q
Method of restocking
A
PLANTING -Time consuming -Can use local stock grown locally -Opportunity to choose or add species -Creates an 'even-aged' woodland NATURAL REGENERATION -Can be unsuccessful as there is reliance on good seed years -More intensive subsequent management -Much lower initial cost -A more natural process -Requires greater skill -May take years to achieve adequate stocking density
3
Q
Objectives of land owner
A
- Increased income?
- Biodiversity
4
Q
Site factors
A
-May require preparation
DRAINAGE
-Waterlogging of soil and lack of oxygen can lead to tree death and wind damage
-Site may need to be drained
FROST
-Spring or late frost can kill young tree species, especially beech, ash and oak which are frost sensitive
DROUGHT
-Trees may be severly affected by prolonged period of drought
-Plant trees within woodlands rather than on woodland edges so they are less susceptible to damage
5
Q
Planting method
A
- Notch (silt) for small scale - fast
- Pit planting for large scale - Good space for root growth but expensive
- Mechanical for large scale - speedy and consistent
6
Q
Protection
A
SHELTERS -Individual protection -Expensive (25-75p per tree) -Damage to trees as they emerge -Susceptible to wind damage FENCING -Protects a large area -Can be plastic mesh (up to 1.8m), dead hedging or temporary electric fencing
7
Q
Labor
A
Cost of work
8
Q
Future maintenance
A
- Weeding (0-4 years) = new trees may be smothered by other vegetation or invasive species
- ‘Beating up’ (1-2 years) = carried out to replace any losses that may occur, only usually done where between 10-20% of planted trees fail
- Site maintenance (0-10 years) = includes fences, rides and ditches
- Formative pruning (5-10 years) = broadleaves
- Grey squirrel control (10-40 years)
- Brashing (15-20 years)
- Thinning (15+ years)
- High pruning (15+ years)
9
Q
Grants
A
NO grant available for restocking unless trees are diseased
10
Q
Methods of mixing
A
- Intimate-line mixture
- Strips
- Block mixtures
- Irregular blocks
- Avoid symmetrical shapes e.g. squares
- Reflect pattern of local landscape
- Limit yourself to 3-4 main species
11
Q
Plant spacing
A
Must allow trees sufficient space to grow
12
Q
Species
A
Broadleaved = 30-50p /tree Conifers = 15-30p /tree
