Introductory Agroforestry

Key Concepts of D & D

A) D&D is system specific
B) Definition of the system for D&D purposes

A land use system is defined as a distinctive combination of three interrelated factors: the land resources, exploited by a particular technology, to satisfy the production objectives of a particular type of land user.




Fig. 6.1 D&D IS AN ITERATIVE PROCESS

C) The diagnosis leads to ‘specifications’ for interventions

The end product of diagnostic procedure is a set of functional specifications:

• What the system needs
• How these needs can best be satisfied
D) Specifications suggest ‘candidate technologies’
E) ‘Technology specifications’ complete the design

• The actual choice of component species
• Spatial arrangement
• Management practice, etc.
F) The design reveals research needs and extension opportunities
G) If at first you do not succeed, try and try and try again