However, when irrigation application decreased by 25% the salt accumulation in root zone will not be obvious and the subsurface drainageflow will decrease by 31.4%.
现状灌溉用水量减少25%时，作物根区没有产生明显的积盐，地下排水量减少31.4%。
2
The rainwater design discharge, drainageflow and rainwater storage volume are analyzed and calculated, and the calculation method of rainwater storage volume is given.
Qu bending and drainageflow, separated by Jing Jing, small and, to the natural landscape in the courtyard between the microfilm, is a typical feature of the Oriental garden;