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采用渗漏液测定法，研究了Ｃｌ￣－在３种紫色土中的迁移和在水稻植株中的分布。结果表明，旱作渗漏液中的Ｃｌ￣－浓度随生育期的进程而逐渐增高。在２０～８０ｃｍ土层内，渗漏液Ｃｌ￣－浓度随深度增加而逐渐降低。小麦收获后，耕作层中Ｃｌ￣－残留量较种植前增加５０．００％～６６．６７％，Ｃｌ￣－不易淋洗到４０～８０ｃｍ土层中。土壤中的氯含量随供氯量而变化。水田渗漏液中的Ｃｌ￣－浓度，各生育期分布均匀而稳定，能大量淋洗到４０～６０ｃｍ土层中。水稻收获后，Ｃｌ￣－的残留量为５．８０％～３０．００％，显著低于旱作土壤。植株中９３．１４％～９８．９６％的Ｃｌ￣－都分布在茎叶中，仅有少量进入籽粒。
Leakage assay was used to study the migration of Cl ~ - in three purple soils and its distribution in rice plants. The results showed that the concentration of Cl ~- in the leachate of the dry land gradually increased with the growth period. In 20 ~ 80cm soil layer, the leachate Cl ~ - concentration gradually decreases with increasing depth. After harvesting wheat, the amount of Cl-residues in the tillage layer increased by 50.00% -66.67% compared with that before planting, and Cl-was not easy to elute into the soil layer of 40-80 cm. The amount of chlorine in the soil varies with the amount of chlorine supplied. Cl ~- concentration in paddy field leachate, the distribution of each period of uniform and stable, can be a large number of leaching to 40 ~ 60cm soil layer. After harvest rice, Cl ~ - residues of 5.80% to 30.00%, significantly lower than the dry soil. In plants, 93.14% ~ 98.96% of Cl ~ - were distributed in the stems and leaves, with only a small amount entering the grains.