====伊朗====
Overexploitation of groundwater has caused significant drawdown of the water table Dorz Sayban平原位于伊朗Larestan郡东南部115千米，由于当地过度开采地下水导致水位急剧下降(1.5m5米/year年) and deterioration of groundwater quality in the Dorz Sayban Plain, which is located 115 km to the southeast of Larestan, Iran. 3500 hectares of land are irrigated using groundwater in this plain. To decrease the rate of the drawdown of the water table, five floodwater spreading systems for recharge of groundwater were designed and constructed in the region 1983 and 2001.，地下水的质量也在恶化。该平原3500公顷都需要地下水灌溉。为了控制水位降低率，分别在1983年和2001年设计并修建了5个洪水疏导系统用于补给地下水。
Inflow and outflow rates from the Kaftari floodwater spreading system were measured for nine flooding events during 2002-2003 using rectangular flumes in the system2003年之间使用Kaftari洪水疏导系统中的矩形水池测量了9次洪水的流入量和流出量。最大的流入量和流出量分别是20. The maximum inflow and outflow rates in the system were 20.3 and 73和7.26 m3立方米/s, respectively. The total volume of inflow and outflow of the system was about 886秒。9次洪水的流入和流出系统的总量是886,000 and 000立方米和 146,000 m3 for the nine flooding events. Therefore, 83000立方米。因此，流入系统中83.5% of the inflow to the system was recharged to the aquifer, only small quantities being lost to evaporation. This shows the high performance of floodwater spreading systems in the recharge of groundwater.的水进入含水层，只有一小部分蒸发流失。这说明洪水疏导系统对于地下水补给作用显著。
More than 70超过70% of the suspended load has settled in the system. This will inevitably lead to clogging and reduction in efficiency in the system, but also an improvement of the soil for agriculture purposes. Additionally, the managed aquifer recharge improves the quality of groundwater, as the EC of floodwater is much lower than that of the groundwater (0的悬移质沉淀在系统中。这将不可避免造成系统堵塞并降低系统的效率，但同时也会改善土壤利于农耕。另外，含水层补给管理会提高地下水的水质，因为洪水的导电性（0.3-0.4 versus 2dS/m）比地下水（2.0-9.0 dS/m).m）低得多。
===Manuals, operations and maintenance===
