The results indicate that the inial soil water conten t and the manner of water supply affect the dispersion-coefficient deeply, but the manner of fertilizer supply does not affect it.

• 研究结果表明：土壤初始含水量、灌水方式对非饱和土壤水动力弥散系数影响大，而加肥方式对土壤水动力弥散系数影响小。