沙漠生物土壤结皮演替对微生物群落结构和土壤酶活力的影响

张胜男, 高海燕, 闫德仁, 黄海广

Effects of desert biological soil crusts succession on microbial community structure and soil enzyme activities

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图5 土壤固氮菌在属水平上的相对丰度

Fig.5 Relative abundance of soil nitrogen-fixing bacteria at genus level