青藏高原禾草混播对土壤微生物多样性的影响
姜鑫, 牛克昌*(
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Effects of grass mixed-sowing on soil microbial diversity on the Qingzang (Tibetan) Plateau
JIANG Xin, NIU Ke-Chang*()
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图4. 土壤细菌和真菌多样性与土壤理化因子和植物群落关系的多元相关分析。A, 细菌。B, 真菌。En, 垂穗披碱草; Fo, 羊茅; Fs, 中华羊茅。Wilks’ Lambda多元检验显示单播和混播差异显著(p < 0.05)。
Fig. 4. Generalized canonical discriminant analysis for links among soil bacterial and fungal diversities, edaphic factors and plant community. A, Bacteria. B, Fungal. En, Elymus nutans; Fo, Festuca ovina; Fs, F. sinensis. There are significant difference between single- and mixed-sowing plots tested by a Wilks’ lambda multivariate test. PAB, plant aboveground biomass; PSR, plant species richness; SAN, soil available nitrogen; SAP, soil available phosphorus; SOC, soil organic carbon; STN, soil total nitrogen; STP, soil total phosphorus.
