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• 基金项目：

• 吴燕玉
• 中国科学院林业土壤研究所

• 陈涛
• 中国科学院林业土壤研究所

• 孔庆新
• 中国科学院林业土壤研究所

• 谭方
• 中国科学院林业土壤研究所

• 张素纯
• 中国科学院林业土壤研究所

• 摘要：张士灌区是国内镉严重污染区。本文全面论述了1981—1983年以来所采取综合防治的效果:①减少灌溉水中Cd浓度,提高pH,改污灌为清灌;②增施石灰、钙镁磷肥等各种改良剂;③农业工程方法、客土、去土;④生物改良方法、种植其他作物,或将污染稻谷作为良种繁育。几年来密切联系生产实际,在污染现场作试验。试验所得结果适合于灌区实际应用。

• Abstract：Zhangshi Irrigation Area is notorious for its cadmium pollution in this country, which has bad effects in human health through food chain. So it is very imperative to adopt a comprehensive way of prevention and improvement. In this report, various methods have been summed up to decrease Cd uptake by rice plant during 1980-1983. They are by:1. Reducing Cd concentration and increasing pH value in irrigation water,2. Applying soil supplement materials: lime, Ca-Mg-P fertilizer, etc.,3. Taking off polluted surface soil at different depth or covering the polluted top soil with unpolluted one,4. Biological methods: in addition to rice, other kinds of crops are planted, such as soybean, corn, sunflower, etc. and using Cd-polluted rice as breed good strains.These experiments have been carried out in polluted fields. And, conclusions are, of course, suitable for this particular area.

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