From flow or water-depth readings at each point, compute Christiansen's uniformity coefficient (CU) and distribution uniformity (DU) to spot clogging or pressure imbalance.
克里斯琴森均匀系数 CU = 1 − Σ|x_i − x̄| / (n·x̄);分布均匀度 DU 取低四分位测点均值/总均值。本工具按各测点水量评估喷滴灌均匀性;纯前端计算。
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Christiansen uniformity (CU) | CU = 100(1 − Σ|xi−mean|/(n·mean)) | Christiansen 1942 |
| Distribution uniformity (DU) | DU = 100 × (LQ25 / mean) | ASAE EP405.1 |
| Allowable application rate | Limited by soil infiltration rate | GB/T 50085-2007 |
灌溉均匀度计算器是一款农业种植领域的在线工具。农业种植工具,帮助计算种植参数与产量。