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首页> 外文期刊>Turkish Journal of Agriculture & Forestry >Determination of Water Conveyance Loss in the Menemen Open Canal Irrigation Network
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Determination of Water Conveyance Loss in the Menemen Open Canal Irrigation Network

机译：梅内门明渠灌溉网输水损失的确定

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摘要

The aim of this research was to determine water conveyance loss in the open canal irrigation network that serves the irrigation areas on the right and left banks of the Menemen Plain, in the lower part of the Gediz Basin. The research was carried out in the main, secondary, and tertiary canals. Water conveyance loss in the canals was measured by the inflow-outflow method, while water velocity was determined using a current-meter. Statistical relationships between canal types, canal shapes, and seepage loss were also investigated. The water conveyance loss at the main canal level was between 0.5% and 1.3% (0.0071-0.0126 l s-1 m-2) per 1 km in the left bank main canal, and between 0.6% and 8.6% (0.0024-0.0361 l s-1 m-2) per 1 km in the right bank main canal. The average loss was 3.0% (0.0141 l s-1 m-2). At the secondary canal level the average water conveyance loss for the trapezoidal canals on the left bank was 2.0% (0.0615 l s-1 m-2) per 100 m and for the concrete flumes on the right bank it was 4.0% per 100 m. Average conveyance loss at the tertiary level on the left bank was 7.0% (0.0598 l s-1 m-2) per 100 m for the trapezoidal canals and 5.1% per 100 m for the concrete flumes. For the concrete flumes on the right bank the figure was 6.5% per 100 m. Based on the statistical analysis, there was no significant difference for seepage loss between secondary and tertiary canal types (X secondary = 18.600a ± 4.404 and X tertiary = 9.173a ± 3.199), but there were statistically significant (P < 0.05) differences in seepage loss between the canal shapes (trapezoidal and concrete flume) (X trapezoidal = 21.892a ± 3.664 and X concrete flume = 5.881b ± 4.025). On the other hand, the interaction between canal type and canal shape was significant (P < 0.05). It was noted that the average seepage loss of the trapezoidal secondary canal was much higher than the average seepage loss of the trapezoidal tertiary canals. Moreover, the reduction in the average seepage loss of the concrete flume secondary canal was lower than the average seepage loss of the concrete flume tertiary canals. The results showed that overall water conveyance loss in open canals increased in comparison to the average values measured 30 years ago, and that water conveyance loss was higher than the average value set for both the open canal irrigation networks of Turkey and the accepted value of water conveyance loss for open canals. This revealed that, overall, maintenance and repair work on the conveyance canals were not sufficient.
机译：这项研究的目的是确定开放渠灌溉网络中的水输送损失，该灌溉网络服务于Gediz盆地下部Menemen平原右岸和左岸的灌溉区。该研究是在主要，次要和第三级运河中进行的。通过流入-流出方法测量运河中的输水损失，而使用电流表确定水速。还研究了渠道类型，渠道形状和渗流损失之间的统计关系。左岸干渠每1 km干渠的输水损失在0.5％和1.3％（0.0071-0.0126 l s-1 m-2）之间，在0.6％和8.6％（0.0024-0.0361 l s-1 m-2）在右岸干渠中每1公里。平均损失为3.0％（0.0141 l s-1 m-2）。在二级运河水平，左岸梯形运河的平均输水损失为每100 m 2.0％（0.0615 l s-1 m-2），而右岸混凝土水槽的平均输水损失为每100 m 4.0％ 。梯形运河左岸第三级的平均输送损失为每100 m 7.0％（0.0598 l s-1 m-2）每100 m为5.1％。对于右岸的混凝土水渠，该数字为每100 m 6.5％。根据统计分析，二级和三级渠道之间的渗漏损失没有显着差异（X二级= 18.600a±4.404和X叔级= 9.173a±3.199），但在第二级和第三级之间，差异有统计学意义（P <0.05）。渠道形状（梯形和混凝土槽）之间的渗漏损失（X梯形= 21.892a±3.664和X混凝土槽= 5.881b±4.025）。另一方面，根管类型与根管形状之间的相互作用显着（P <0.05）。值得注意的是，梯形二级管的平均渗漏损失远高于梯形第三管的平均渗漏损失。此外，混凝土水渠二次渠的平均渗漏损失的减少低于混凝土水渠三次渠的平均渗漏损失。结果表明，与30年前的平均值相比，开放式运河的总输水损失有所增加，并且输水损失高于土耳其开放式运河灌溉网络的既定水准和可接受的水价开放运河的运输损失。这表明，总体而言，运输运河的维护和修理工作还不够。

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