Pond Al Yakloum, Mresti municipality, Mount Lebanon, Lebanon
The Al Yakloum Pond is located in a public area within the municipality of Mrusti (Mount Lebanon). Runoff water is collected from a natural catchment and is led to the pond through a channel that runs alongside a farm road. The catchment area is mostly unproductive private land, and extends to approximately 2 ha in total. Sediment is an issue in the catchment due to the fine sandy outcrops. Sandy particles are thus carried in the runoff – and require settling out in a sediment trap to limit the turbidity of water in the pond. Thus runoff first enters a stilling basin (a sediment trap) where the suspended solids are deposited: runoff is then transferred through a pipe leading to the pond.
The pond's volume is around 7500 m3, and it is used to irrigate an orchard of about 5 ha in size, which is planted to apples, cherries and olives. A precision smart irrigation system is used for water application. The system includes IoT sensors that provide real time information about soil humidity and weather conditions that allow to automatize the valve opening depending on the plant needs thus optimizing the water consumptions. The volume of water collected is not enough to fulfil all the theoretical water requirements of the orchard crops, therefore the irrigation is merely supplementary to rainfall, and its impact on production is limited. However, the alternative water resource in the area is groundwater. This is high cost and has negative environmental impacts. Therefore the runoff pond technology is preferable for the sustainability of agriculture in the area. If the efficiency of runoff water collection and its application can be improved, then pump withdrawal requirements from groundwater sources decrease and this will optimize the efficiency of irrigation.
地点: Municipality of Mrusti, Mount Lebanon, 黎巴嫩
分析的技术场所数量: 单一场所
技术传播: 适用于特定场所/集中在较小区域
在永久保护区？: 是
实施日期: 2002; 10-50年前
介绍类型
| 对投入进行具体说明 | 单位 | 数量 | 单位成本 (不适用) | 每项投入的总成本 (不适用) | 土地使用者承担的成本% |
| 劳动力 | |||||
| Cleaning of the ponds from sediment and removal of existing backfill | n | 1.0 | 3000.0 | 3000.0 | |
| Excavations and Backfilling | n | 1.0 | 3600.0 | 3600.0 | |
| Maintenance of existing HDPE geomembrane | n | 1.0 | 3000.0 | 3000.0 | |
| 设备 | |||||
| Geomembrane | m^2 | 1727.0 | 8.0 | 13816.0 | |
| Sedimentation Trap | n | 1.0 | 7087.0 | 7087.0 | |
| Retaining Wall | n | 1.0 | 21.186 | 21.19 | |
| Rip-rap channel | m | 60.0 | 6.0 | 360.0 | |
| Fence and Gates along the pond including cast-in-place concrete | m | 160.0 | 38.8 | 6208.0 | |
| 技术建立所需总成本 | 37'092.19 | ||||
| 技术建立总成本，美元 | 37'092.19 | ||||
| 对投入进行具体说明 | 单位 | 数量 | 单位成本 (不适用) | 每项投入的总成本 (不适用) | 土地使用者承担的成本% |
| 劳动力 | |||||
| Cleaning of the sediment trap | times per year | 5.0 | 50.0 | 250.0 | 100.0 |
| Cleaning of the rip-rap channel | times per year | 5.0 | 20.0 | 100.0 | 100.0 |
| 技术维护所需总成本 | 350.0 | ||||
| 技术维护总成本，美元 | 350.0 | ||||
Related to the specific Municipality of Mrusti
Increase of runoff catchment will have an impact on the amount of water supplied to cultivated area thus increasing the production
Increase of runoff catchment will have an impact on the amount of water supplied to cultivated area thus increasing the quality production
The increased amount of runoff water combined with the reduction of losses given by the precision smart irrigation system permitted to extend the area connected to the pipe system
Sedimentation trap will limit the turbidity of the ponds. The catchment area do not include high anthropized area therefore the pollution is very limited.
Collecting the water in an uncovered pond leads to an increase of the evaporation.
Increasing the amount of water harvested reduces the amount of runoff water in the downstream area, therefore reducing the hydraulic risk and soil erosion during extreme rain events.
Reduction of runoff and surface water along the earthen channels and the roads decreases the amount of sediment transport showing a positive impact in terms of land degradation.
