|
|
|
Overview |
Crop Production |
Crop Pattern |
Crop Yield |
Irrigation |
Soil Management | Precision Farming |
Relevant Products |
Relevant Links
Performance evaluation of an irrigation project using satellite Remote Sensing GIS & GPS
Nagarjunasagar Left Bank Irrigation Command in Andhra Pradesh, India Performance Evaluation Matrix using Spatial Information Technologies.
|
 |
 |
 |
 |
 |
Performance Evaluation Matrix
Basic objective of a irrigation project is to improve the productivity of the land for agricultural produce with scientific application of water and other management inputs. Performance can therefore be judged, if we have answers to the following questions:
- Is the irrigation potential utilized vis-ŕ-vis the potential created?
- Is the return on agricultural production and productivity achieved towards design crop yield (maximisation)?
- Is irrigation water being efficiently applied (managed)?
- Is there an improvement or deterioration
in the irrigated lands development (due to salinity / alkalinity,
waterlogging)?
To address these questions, ‘time domain’ and ‘spatial domain’ play important role.
Time domain: Time span of performance evaluation can be (i) since commissioning of the irrigation project, and or (ii) in subsequent time periods.
Spatial domain: A canal irrigation project in India constitutes a heirarchial system of main canal, branch canals, distributaries, minors and field channels. Each has its irrigation command.
- A canal irrigation project in India is also divided and sub-divided into several administrative jurisdictions like Irrigation Zones / Divisions / Sub-divisions / Blocks.
- Each canal can be divided into ‘head
reach’ and ‘tail reach’.
Evaluation has to be structured into relative performance within the time domains and spatial domains of an irrigation project or amongst several irrigation projects.
|
|
|