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对南京工业区———大厂区林区土壤中的铜、镍、锌、锰进行了研究分析。大厂区重金属全量和对照区无显著差异，不同层次金属含量也无显著差异。大厂区内重金属含量分布为：南京钢铁厂＞太子山公园＞扬子乙烯地区。重金属含量不仅与ｐＨ、有机质相关，还与污染源、样点位置相关。重金属各元素互相相关，其中铜与锌、镍与锰呈高度正相关。重金属有效态含量与全量也呈高度相关，且有效态含量约占全量的１０％～３５％之间，并与ｐＨ和有机质含量相关。其中多元统计分析由ＳＡＳ软件作出。
In Nanjing Industrial Zone --- Dachang District forest soil copper, nickel, zinc and manganese were studied and analyzed. There was no significant difference between Dachang District heavy metal content and control area, and there was no significant difference in different levels of metal content. Dachang District heavy metal content distribution: Nanjing Iron and Steel Plant> Prince Edward Park> Yangtze ethylene area. Heavy metal content not only with pH, organic matter-related, but also with the source of pollution, sample location. The elements of heavy metals are related to each other, among them, copper is positively correlated with zinc, nickel and manganese. The content of heavy metal is also highly correlated with the total amount, and the effective content is about 10% ~ 35% of the total amount, and is related to the content of pH and organic matter. Multivariate statistical analysis by SAS software.