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本文旨在探讨,一般情况下每季或每年需要多少深层渗透水;深层渗透水到达地下含水层要多长时间;当地下水位变化时,深层渗透水将多久到达地下含水层;深层渗透水可能含有哪些化合物等。 深层渗透水量 为使作物根系层含盐量保持在不损害作物生长的范围内所必须的最小深层渗透水量,即为冲洗需水量。计算冲洗需求量最简单的方法,是运用盐量平衡方式,即:
The purpose of this paper is to explore how often deep-seated water is required quarterly or annually, how long it will take to reach the subsurface aquifers, how long the deep-seated water will reach the subsurface aquifers when the local subsurface water level changes, and deep-seated water may Which compounds are contained. Deep water infiltration is the minimum water depth necessary to maintain the salt content of the root layer of the crop within the range that does not harm crop growth. The simplest way to calculate flushing demand is to use a salt balance method, namely: