The code (Taxonomy) bellow are used in FORESTRIAL database to define the main scientific objectives associated to the forest field trials. This classification is compliant with NOLTFOX taxonomy.
1 Exotic tree species
2 Provenances (clinal variation)
3 Genetic variation within and among stands
4 Progeny testing (controlled crosses)
5 Phenotypic plasticity (clones, rooted cuttings)
6 Clonal tests (emblings)
7 Seed orchards and clonal archives (grafts)
8 After effects
10 Planting
11 Sowing
12 Shelterwood cutting
13 Seed-tree cutting
14 Soil preparation
15 Natural regeneration
16 Prescribed burning
17 Ditching drainage
20 Thinning
21 Fertilization
22 Liming
23 Acidification
24 Tree species comparison
25 Tree species mixture
26 Selection cutting
27 Pruning
28 Urban forestry
29 Cleaning
30 Watershed
31 Carbon, nutrient and water balance
32 Roof construction
33 Climate change
34 Soil conservation
35 Forest protection
36 Heavy metals
37 Biodiversity
40 Genetics
41 Establishment
42 Fertilization
43 Weed control
44 Insects and fungi
45 Yield and stand improvement
46 Harvest and logistics
50 Compensation
51 Nutrient balances
52 Coppice-forest
53 Whole tree harvesting
54 Slash removal
60 Drainage
61 Fertilization
63 Tree species comparison