毛乌素沙地臭柏(Sabina vulgaris)群落生物土壤结皮细菌群落组成及其影响因素
|
周虹, 吴波, 高莹, 成龙, 贾晓红, 庞营军, 赵河聚
|
Composition and influencing factors of the biological soil crust bacterial communities in the Sabina vulgaris community in Mu Us Sandy Land
|
Hong Zhou, Bo Wu, Ying Gao, Long Cheng, Xiaohong Jia, Yingjun Pang, Heju Zhao
|
|
表1 不同发育阶段结皮层理化性质(平均值±标准误差)
|
Table 1 Physicochemical characteristics in four developmental stages of biological soil crusts (mean±SE)
|
|
项目 | 裸沙 | 微生物结皮 | 藻结皮 | 地衣结皮 | 苔藓结皮 |
---|
土壤含水量/% | 5.27±0.11d | 12.67±1.50c | 15.11±0.90c | 18.66±1.78b | 22.25±1.49a | 有机碳/(g·kg-1) | 0.80±0.07d | 6.24±0.41c | 11.74±0.83b | 16.47±1.35b | 20.92±0.58a | 全碳/(g·kg-1) | 2.27±0.18d | 15.44±1.64c | 20.05±2.01c | 24.22±0.52b | 28.71±3.93a | 全氮/(g·kg-1) | 0.37±0.11c | 0.76±0.15b | 0.76±0.09b | 0.79±0.09b | 1.33±0.18a | 硝态氮/(mg·kg-1) | 1.61±0.03a | 1.60±0.02a | 1.32±0.07b | 0.87±0.07c | 0.68±0.10c | 铵态氮/(mg·kg-1) | 0.48±0.16 | 0.51±0.19 | 0.55±0.09 | 0.53±0.04 | 0.58±0.15 | 全磷/(g·kg-1) | 0.51±0.05b | 0.53±0.06b | 0.65±0.06a | 0.66±0.04a | 0.68±0.02a | pH | 7.07±0.03a | 7.01±0.01a | 7.02±0.01a | 6.91±0.03b | 6.89±0.01b |
|
|
|