| World Soil Resources Reports | 71/6 |
 | AGRO-ECOLOGICAL LAND RESOURCES ASSESSMENT FOR AGRICULTURAL DEVELOPMENT PLANNING A CASE STUDY OF KENYA RESOURCES DATA BASE AND LAND PRODUCTIVITY Technical Annex 6 Fuelwood Productivity |
A.H. Kassam, H.T. van Velthuizen,
G.W. Fischer and M.M. Shah
Any part of this fuelwood productivity model and the model parameters may be modified in the light of new knowledge and/or new objectives. The model is part of a larger district and national level planning tool and is expected to be expanded and refined with use.
The designations employed and the presentation of the material in this document do not imply the expression of any opinion whatsoever on the part of FAO or IIASA concerning the legal or constitutional status of any sea area or concerning the delineation of frontiers.
M-51
ISBN 92-5-103396-X
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Land and Water Development Division
Food and Agriculture Organization of the United Nations
and
International Institute for Applied Systems Analysis
1991
© FAO 1993
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4 TREE SPECIES AND LAND UTILIZATION TYPES
6 CLIMATIC ADAPTABILITY AND YIELD POTENTIALS
6.1 Photosynthesis Characteristics
8 EDAPHIC ADAPTABILITY AND SUITABILITY
9 SLOPE LIMITATIONS AND SOIL EROSION
10 LAND SUITABILITY ASSESSMENT
10.1 Fuelwood Productivity Potential
10.2 Interphase with Crop and Livestock Productivity Models
A6.1 Fuelwood yields (mean annual increment of wood biomass in t/ha dry weight) for individual length of growing periods at high level of inputs
A6.2 Fuelwood yields (mean annual increment of wood biomass in t/ha dry weight) for individual length of growing periods at intermediate level of inputs
A6.3 Fuelwood yields (mean annual increment of wood biomass in t/ha dry weight) for individual length of growing periods at low level of inputs
A8.1 Soil unit ratings for fuelwood species at high, intermediate and low levels of inputs
A8.2 Phase ratings for fuelwood species at high, intermediate and low levels of inputs
A8.3 Stoniness ratings for fuelwood species at high, intermediate and low levels of inputs
Figures
2.1 Schematic presentation of fuelwood productivity model
3.1 Make-up of land resources data base
10.1 Schematic Presentation of the land suitability assessment programme for fuelwood production
10.2 Generalized land suitability for rainfed production of Eucalyptus camaldulensis at intermediate level of inputs
Tables
4.1 Fuelwood species characteristics
4.2 Attributes of land utilization types considered for fuelwood production
5.2 Patterns of length of growing periods (LGP-Patterns) - Historical profiles of occurrence of number of length of growing periods per year
5.3 Relationships between mean total dominant and mean total associated lengths of growing period
5.4 Relationship between individual component mean length and mean total length of growing period
6.1 Adaptability groups for fuelwood species
6.2 Relationships between temperature and rate of photosynthesis (kg CH2O ha-1 hr-1) for six adaptability classes of fuelwood species
6.3 Rotation length (years) by moisture zones
6.4 Thermal zone suitability ratings for fuelwood species
6.5 Moisture screen for fuelwood species
6.6 Photosynthetically active radiation on very clear days (Ac) (in cal cm-2 day-1) and the daily gross photosynthesis rate of vegetation canopies on very clear (bc) and overcast days (in kg CH2O ha-1 day-1) for Pm = 20 kg CH2O ha-1 hr-1
6.7 Total biomass yield potential (Bm) without constraints (mean annual increment t/ha dry weight) at high level of inputs
6.8 Total biomass yield potential (Bm) without constraints (mean annual increment t/ha dry weight) at intermediate level of inputs
6.9 Total biomass yield potential (Bm) without constraints (mean annual increment t/ha dry weight) at low level of inputs
6.10 Wood biomass yield potential (Bw) without constraints (mean annual increment t/ha dry weight) at high level of inputs
6.11 Wood biomass yield potential (Bw) without constraints (mean annual increment t/ha dry weight) at intermediate level of inputs
6.12 Wood biomass yield potential (Bw) without constraints (mean annual increment t/ha dry weight) at low level of inputs
7.5 Quartiles of slope classes
8.1 Relation between basic soil requirements and soil characteristics
8.2 Soil requirements of fuelwood species
8.3 Diagnostic horizons and properties of soil units
9.1 Relationships between topsoil loss and yield loss
9.2 Ranking of soils (Kenya Soil Survey) according to their susceptibility to productivity loss per unit of topsoil loss
9.3 Regeneration capacity of soils (mm/year) by length of growing period zone (LGP) and thermal zone