关键词: 三峡库区, 三峡库区, 生态种植模式, 生态经济效应

Abstract: A pot experiment was carried for the purpose of studying biomass and nutrient content of zea mais on arbuscular mycorrhizal(AM)fungi inoculated ones and non-mycorrhizal ones under different culture conditions of ten cm soil and five cm ore tailing、eight cm soil and seven cm ore tailing、five cm soil and ten cm ore tailing.The research shows that plant yields increase with soild depth，whether inoculation or not. Mycorrhizal plants can absorb more nutrient than non-mycorrhizal ones, and translate less Na to shoots, protecting plants from the excessive accumulation of Na. Mean concentrations of Zn and Cu in shoots change weakly with inoculation mycorrhizal fungi, but concentration of Mn descends. Plant biomass and nutrient content for mycorrhizal plants in redaimed soil with a small soil thickness of 5cm and a great ore tailing thickness of 10cm are higher than those for non-mycorrhizal plants in reclaimed soil with a great soil thickness of 10 cm and a small ore tailing thickness of 5cm. Arbuscular mycorrhizae have an important role about counteracting the effect induced by a small thickness of covered soil. These results suggest that arbuscular mycorrhizae have an important role in the reconstruction of plants in the areas reclaimed with ore tailing.