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在美国弗吉尼亚州的一个金属矿区进行土地复垦，其废弃物矿砂和矿泥的不良质地和磷素缺乏是恢复土地生产力的两大限制因素。通过温室盆栽试验，选择矿砂与矿泥重组土壤的最佳比例和加入磷素的最佳用量，为下一步进行的田间试验和土地复垦工程的实施提供基础资料。
Land reclamation in a metal mining area in the United States of Virginia in the United States impairs the poor quality of its waste ores and slime and the lack of phosphorus as two major limiting factors in restoring land productivity. According to the greenhouse pot experiment, the optimal ratio of the ore and the slime reorganized soil and the optimal dosage of phosphorus were selected to provide the basic information for the next field experiment and land reclamation project.