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(9142) Economic life of a project
The life of a project determined by the point in time at which the effect of economic and physical factors (physical depreciation, obsolescence, changing requirements for project services, and time discounts and allowances for risk and uncertainty) is to cause the costs of continuing the project to exceed the additional benefits to be expected from continuation. The economic life of a project is generally less than its physical life. The period of analysis can be shorter or equal to the economic life of a project.
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Irrigation
Drainage
Dictionary - Economics of Irrigation System Terms
- Systematic deterministic
- Systematic error
- Metric system
- Foot-Pound-Second (FPS) system, or British system
- Centimetre-Gram-Second (CGS) system
- Metre-Kilogram-Second (MKS) system
- Socioeconomic drought
- Economic yield
- Colloidal system or Colloidal complex
- Soil classification systems
- Whiting`s counterbalancing system
- Most economic section or Most efficient section
- Floating guide bank system, or Stream directing system
- Distribution system
- Irrigation pipe aqueduct, Pipe aqueduct, Pipe flume
- Syphon, Inverted siphon, Irrigation syphon, Canal syphon, Syphon superpassage
- Flooring system
- Lift irrigation area, or Lift area
- Channel efficiency, or System efficiency
- Continuous-flow irrigation
- Wedge system of regulation
- Sluggish system
- Block system (a term used in India in the States of Maharashtra and Gujarat)
- Night-storage irrigation system
- Intermittent-flow irrigation system
- Rotation, Rotation System, or Rotational working
- Irrigation return flow
- Follow-on system
- Farm irrigation structures
- Non-automatic system
- Integrated production systems
- Economic effectiveness of a flood management system
- Confined flow (system), Artesian flow, or Pressure flow
- Collective irrigation system
- Individual irrigation system
- Perennial irrigation
- Seasonal irrigation
- Supplemental irrigation
- Systematic irrigation
- Flow irrigation, or Gravity irrigation
- Pumping irrigation
- Inundation irrigation
- Irrigation from a storage reservoir
- Irrigation from groundwater
- Irrigation by flood water spreading
- Sailab irrigation (a term used in India and Pakistan)
- Micro basin irrigation
- Irrigation by spreading
- Irrigation
- Irrigation interval
- Irrigation dose
- Ideal irrigation interval
- Irrigation season
- Fall irrigation (USA)
- Winter irrigation (USA)
- Early irrigation (USA)
- Sub-irrigation
- Overirrigation
- Irrigation canals
- Surface irrigation
- Flood irrigation
- Basin method of irrigation, or Irrigation by beds
- Flush irrigation
- Spate irrigation
- Border irrigation, or Border method
- Flooding from ditches, or (contour ditch irrigation)
- Corrugation irrigation
- Furrow irrigation
- Surge irrigation
- Duration of irrigation
- Secondary flow, Two discharge, or Cutback irrigation
- Primary flow irrigation (single discharge)
- Recycling system, Reuse system
- Wave irrigation
- Irrigation through buried drains, Irrigation-drainage, or Vallenhove process
- Irrigation by nappe control, or Ramspol process
- Selection of irrigation parameters
- Sprinkler irrigation
- Irrigation terminal
- Irrigation device
- Perforated pipe sprinkler irrigation
- Roll-move sprinkler lateral system or Side-roll sprinkler lateral system
- Irrigation sprinkler machine
- Centre pivot irrigation
- Lateral-move irrigation machine sprinkler method
- Solid set irrigation
- Linear move system
- Side Roll System
- Piloting of irrigation
- Irrigation cycle
- Micro-irrigation, Localized irrigation, Drip irrigation, Trickle irrigation
- Mobile micro-irrigation
- Pulse irrigation
- Surface drip irrigation
- Buried drip irrigation
- Drip irrigation functioning by propulsions
- Micro-irrigation network
- Micro-irrigation nozzle-line
- Irrigation dose
- Semi-automatic control (of irrigation)
- Micro-irrigation system with hydraulic sequential operation
- Automatic control (of irrigation)
- Porous wall microirrigation tubing
- Proportional irrigation pump
- Irrigation water
- Irrigation water requirement, Irrigation need
- Net irrigation requirement, Farm delivery requirement, or Delta at farm
- Crop irrigation requirement
- Diversion requirement, Gross irrigation requirement, or Delta at head of main canal
- Optimum irrigation requirements
- Economic water duty
- Irrigation efficiency, Farm irrigation efficiency, Farm delivery efficiency, Water conveyance and delivery efficiency, or Overall efficiency
- Irrigation water-requirement
- Subirrigation
- Surge irrigation
- Irrigation water use efficiency
- Unit irrigation efficiency
- Performance of a collective system in terms of discharges (or volumes) delivered
- Economic efficiency of irrigation
- Performance level of a collective system
- Irrigation efficiency
- Agronomic efficiency of irrigation or Agronomic productivity of irrigation
- Degree of durability of irrigation
- Drainage system
- Field drainage system
- Natural drainage system
- Subsurface drainage system
- Main drainage system
- Gridiron system
- Grid system
- Herringbone system
- Horizontal subsurface drainage system
- Intercepting system
- Parallel grid system
- Parallel system
- Random drainage system
- Singular system
- Natural drainage systems, or Random drainage systems
- Cutoff drainage system, or Intercepting drainage system
- Herringbone drainage system
- Gridiron drainage system
- Double-main drainage system
- Composite drainage system
- Grouping drainage system
- Zigzag drainage system
- Parallel field ditch system
- Parallel lateral open ditch system
- Cross-slope ditch system, or Drainage-type terraces
- Relief drainage system
- Convergent drainage system
- Elkington drainage system, Sink-hole drainage
- Rerolle drainage system
- Across-the-slope drainage system, or Keythrope drainage system
- Surface drainage system
- Vertical subsurface drainage system
- Automatic system
- Well point system
- Marker system
- Regulus system
- Trestle and crane system
- Economical haul distance
- Supervisory Control and Data Acquisition (SCADA) system
- Programmed irrigation
- Fully automatic irrigation system
- Semi-automatic field water distribution system, or Partially automatic system
- Follow-through system
- Pneumatic butyl valve (for pipeline distribution systems)
- Automatic storage (or compensation) system
- Pressure tank system
- Water level control system (pumps)
- Multi-channel system
- Multiband system
- Passive sensing system
- Geographic Information System (GIS)
- Global Positioning System (GPS)
- Telemeter system
- Irrigation development project or system
- Systematic maintenance
- Terrace system
- Ecosystem
- Natural ecosystem
- Anthropocentric ecosystem
- Economic conservation
- Biological systems
- Systematics
- Sewer system or Sewerage
- Separate sewer system
- Surveillance system
- Economic poisons
- Systemic
- Systemic pesticide
- Irrigation
- Surface irrigation
- Basin Irrigation
- Overhead irrigation
- Sub‑irrigation
- Microirrigation
- Trickle irrigation
- Drip irrigation
- Total irrigation
- Supplemental irrigation
- Preplant irrigation
- Organic irrigation
- Composite layout drainage system
- Riverine ecosystem
- Hydraulic effectiveness of flood control systems
- Flood early warning system
- Disk Operating System (DOS)
- Operating System (OS)
- Turnkey system
- Binary system (BASE 2)
- System software
- Adaptive system
- Expert system
- Hierarchical system
- Higher level system
- Linear system
- Multi-stage system
- Nonlinear system
- Serial system
- Stochastic system, or Probabilistic system
- Sub-system
- System environment
- System equilibrium
- System synthesis
- Systems analysis, Operational analysis, System engineering, Mathematical modeling, Management science
- Systems compatibility
- Systems engineering
- Systems integration
- Time-invariant system
- Casual system
- Continuous system
- Deterministic system
- Discrete system
- Distributed system
- Dynamic system
- Quantized system
- Stable system
- Decision Support Systems
- Economic life of a system
- Optimization, or System optimization
- Conjunctive irrigation planning
- Irrigation project
- Irrigation potential
- Groundwater system, or Groundwater basin
- Socio-economic data
- Economic cut
- Force account system, Day-labour system, Day-work system, or Hired labour system
- Economic feasibility, or Economic justification
- Assessment of irrigation charges
- Irrigation cess
- Water rate, Water charge, Irrigation rate, or Irrigation assessment
- Economic life of a project
- Primary benefits, Primary effects, Direct irrigation benefits, or Direct irrigation effects
- Secondary benefits, Secondary effects, Indirect irrigation benefits, or Indirect irrigation effects
- Economic value of unit of irrigation water
- Revenue value of a unit of irrigation water
- Economic depreciation
- Climate System
- Ecosystem
- Ecosystem Services
- Human System
- Net Ecosystem Production (NEP)
