Department of Environmental Microbiology, Babasaheb Bhimrao Ambedkar (Central) University, Raebarelly Road, Lucknow 226025, Uttar Pradesh, India.
Department of Chemistry and Biotechnology, ERA Chair of Green Chemistry, School of Science, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia.
Sci Total Environ. 2018 Sep 1;634:497-500. doi: 10.1016/j.scitotenv.2018.03.373. Epub 2018 Apr 7.
Although patterns of microbial diversity and biomass have been described and reviewed at local and regional scales, a unifying driver, or set of environmental drivers affecting soil microbial biomass (SMB) pattern at global level is still missing. Biomass of soil microbial community, known as SMB is considered widely as the index of soil fertility and ecosystem productivity. The escalating soil stresses due to land degradation and climatic variability are directly correlated with loss of microbial diversity and abundance or biomass dynamics. Therefore, alleviating soil stresses on microbial communities with ecological restoration could reduce the unpredictability and turnover rates of SMB. Thus, the key ecological factors which stabilize the SMB and minimize its turnover, are supposed to play an important role in the soil nutrient dynamics and productivity of the ecosystems. Because of the existing public concern about the deleterious impacts of ecosystem degradation, there is an increasing interest in improving the understanding of SMB, and the way, it contributes to restoration and functioning of ecosystems.
尽管已经在局部和区域尺度上描述和综述了微生物多样性和生物量的模式，但在全球范围内，仍然缺乏一个统一的驱动因素或一组环境驱动因素来影响土壤微生物生物量（SMB）的模式。土壤微生物群落的生物量，通常被称为 SMB，被广泛认为是土壤肥力和生态系统生产力的指标。由于土地退化和气候变化导致的土壤压力不断增加，与微生物多样性和丰度或生物量动态的丧失直接相关。因此，通过生态恢复减轻对微生物群落的土壤压力可以降低 SMB 的不可预测性和周转率。因此，稳定 SMB 并最小化其周转率的关键生态因素，应该在土壤养分动态和生态系统生产力中发挥重要作用。由于人们普遍关注生态系统退化的有害影响，因此越来越有兴趣提高对 SMB 的理解，以及它对生态系统恢复和功能的贡献方式。
