当前位置：
X-MOL 学术
›
Glob. Change Biol.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Microbial resistance and resilience in response to environmental changes under the higher intensity of human activities than global average level.
Global Change Biology ( IF 10.8 ) Pub Date : 2020-01-13 , DOI: 10.1111/gcb.14995 Laibin Huang 1, 2 , Junhong Bai 1 , Xiaojun Wen 1 , Guangliang Zhang 1 , Chengdong Zhang 1 , Baoshan Cui 1 , Xinhui Liu 1
Global Change Biology ( IF 10.8 ) Pub Date : 2020-01-13 , DOI: 10.1111/gcb.14995 Laibin Huang 1, 2 , Junhong Bai 1 , Xiaojun Wen 1 , Guangliang Zhang 1 , Chengdong Zhang 1 , Baoshan Cui 1 , Xinhui Liu 1
Affiliation
|
With the increasing intensity of global human activities, the ecosystem function, which is supported by the microbial community, will be dramatically changed and impaired. To investigate microbial resistance and resilience of microbial communities to human activities, we chose two typical types of human disturbances, urbanization, and reclamation under the higher intensity of human activities than the global average level. We examined microbial traits, including the abundance, diversity, phylogeny, and co-occurrence interactions in soil microbial communities, together with the nitrification activities observed in the subtropical coastal ecosystem of the Pearl River Estuary and in soil microcosm experiments. Microbial communities were less resistant to the environmental changes caused by urbanization than to those caused by reclamation, which was significantly reflected in the nitrogen and/or carbon-related patterns. However, most of the microbial traits could be recovered almost to the original level without significant differences in the microcosm after 40 days of incubation. The co-occurrence interactions between nitrifiers and other microbial communities were dramatically changed and could not be completely recovered, but this change did not affect their nitrification activities for balancing the ammonium in the soil to the original level during the recovery stage, suggesting that the interactions between microbial communities might have fewer effects on their activities than previously thought. This study quantitatively demonstrated that microbial communities as a whole can recover to a status similar to the original state in a short time after the removal of stress at a large ecosystem scale even under the higher intensity of human activities than global average level in coastal ecosystems, which implied a strong recovery capacity of soil microbial community even after intense human disturbance.
中文翻译：
高于全球平均水平的人类活动强度下微生物对环境变化的抵抗力和恢复力。
随着全球人类活动强度的不断加大，由微生物群落支撑的生态系统功能将发生巨大改变和损害。为了研究微生物群落对人类活动的抵抗力和恢复力，我们选择了高于全球平均水平的人类活动强度下的城市化和开垦两种典型的人类干扰类型。我们研究了微生物特征，包括土壤微生物群落的丰度、多样性、系统发育和共现相互作用，以及在珠江口亚热带沿海生态系统和土壤微观实验中观察到的硝化活动。微生物群落对城市化引起的环境变化的抵抗力低于对开垦引起的环境变化的抵抗力，这在氮和/或碳相关模式中得到了显着反映。然而，培养40天后，大部分微生物性状几乎可以恢复到原始水平，微观世界没有显着差异。硝化细菌与其他微生物群落之间的共生相互作用发生了巨大的变化并且无法完全恢复，但这种变化并没有影响它们在恢复阶段将土壤中的铵态氮平衡到原始水平的硝化活性，这表明相互作用微生物群落之间的相互作用对其活动的影响可能比以前想象的要小。本研究定量地证明，即使在人类活动强度高于全球平均水平的沿海生态系统下，在大生态系统尺度上解除胁迫后，微生物群落整体也能在短时间内恢复到与原始状态相似的状态，这表明土壤微生物群落即使在强烈的人类干扰后仍具有很强的恢复能力。
更新日期：2020-02-26
中文翻译：
高于全球平均水平的人类活动强度下微生物对环境变化的抵抗力和恢复力。
随着全球人类活动强度的不断加大，由微生物群落支撑的生态系统功能将发生巨大改变和损害。为了研究微生物群落对人类活动的抵抗力和恢复力，我们选择了高于全球平均水平的人类活动强度下的城市化和开垦两种典型的人类干扰类型。我们研究了微生物特征，包括土壤微生物群落的丰度、多样性、系统发育和共现相互作用，以及在珠江口亚热带沿海生态系统和土壤微观实验中观察到的硝化活动。微生物群落对城市化引起的环境变化的抵抗力低于对开垦引起的环境变化的抵抗力，这在氮和/或碳相关模式中得到了显着反映。然而，培养40天后，大部分微生物性状几乎可以恢复到原始水平，微观世界没有显着差异。硝化细菌与其他微生物群落之间的共生相互作用发生了巨大的变化并且无法完全恢复，但这种变化并没有影响它们在恢复阶段将土壤中的铵态氮平衡到原始水平的硝化活性，这表明相互作用微生物群落之间的相互作用对其活动的影响可能比以前想象的要小。本研究定量地证明，即使在人类活动强度高于全球平均水平的沿海生态系统下，在大生态系统尺度上解除胁迫后，微生物群落整体也能在短时间内恢复到与原始状态相似的状态，这表明土壤微生物群落即使在强烈的人类干扰后仍具有很强的恢复能力。
京公网安备 11010802027423号