作　　者： ; ; ; ; ; ; (郭江）;

机构地区： 河北农业大学

出　　处： 《生态学杂志》 2008年第10期1826-1829,共4页

摘　　要： 对河北省迂安市马兰庄镇铁尾矿不同恢复模式土壤微生物和酶活性进行了分析。结果表明：不同铁尾矿中主要微生物数量存在显著差异，在总体数量上，细菌最多，放线菌次之，真菌较少；在表层0～20cm，土壤微生物数量和土壤酶活性均表现为人工林〉自然恢复〉新尾矿；土壤微生物数量和土壤酶活性随采样深度的增加而显著降低；尾矿土壤微生物和土壤酶之间均呈正相关，但相关程度有所不同。自然恢复和人工林恢复均能够增加尾矿库的微生物数量和土壤酶活性，人工林的恢复效果高于自然恢复。 The analyses on the microbial quantity and enzyme activity in the Malanzhuang iron tailings in Qian＇ an City of Hebei Province under effects of different vegetation restoration patterns showed that there were significant differences in the quantities of major microbes in the tailings, with the most for bacteria, followed by actinomyces, and fungi. The microbial quantity and the enzyme activity in 0-20 cm layer of the tailings decreased ;.n the order of plantation 〉 natural restoration 〉 new tailing. Both the microbial quantity and the enzyme activity decreased significantly with increasing sampling depth. There were positive relationships between the microbial quantity and the enzyme activity in the tailings, but the correlation degree was different. It was concluded that both the natural restoration and the plantation could improve the microbial quantity and enzyme activity in iron tailings, and the effect of plantation was more significant.

关 键 词： 土壤微生物 土壤酶活性 尾矿 恢复模式

领　　域： [农业科学] [农业科学]