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The amount of conveyance loss of irrigation system is very high
ratio to total agricultural irrigation water in Taiwan for
several seasons. The conveyance distance is long within the
amount of irrigation water, many structures have damaged or
beside their design age for apply to conveyance irrigation
water. Only based on the results of input and output, as "Black
Box Analysis" method is adopted to analyze former lost to
satisfy the irrigation requirement for farmer in past study.
Therefore, Most people misunderstand that there will have a
linear relationship between the irrigation area and irrigation
water demands. The purpose of this study is more detail to
study the previous questions. The influence factors of
conveyance loss in irrigation channel had analyzed and to
construct serial model dependent on the influence factor of
conveyance loss, and to estimate conveyance loss amount, made
the definition of irrigation water requirement will be more
clearly. The field results of irrigation use of water through
each irrigation association under normal state (wet growing
seasons) in Taiwan can abtam the rational conveyance loss of
each irrigation association from the model. And again, To
calculate irrigation water requirement of irrigation system
from this model based on the different improvement analysis can
be obtained the maximum available improvement amount, in order
to improve water resource efficient apply potential and the
management of irrigation in Taiwan.
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