Abstract Background Microbial contributions to soil organic carbon formation have received increasing attention, and microbial carbon use efficiency is positively correlated with soil organic carbon storage. Mainbody This work reviews the impact on microbial carbon use efficiency from six constraints, including plant community composition and diversity, soil pH, substrate quality, nutrient availability and stoichiometric ratios, soil texture and aggregates, water and thermal constraints, and external nutrient inputs. In general, the response of microbial carbon use efficiency showed large uncertainty to above constraints, including positive-, negative-, or non-correlation. However, some factors are biased, more likely to promote or inhibit carbon use efficiency. For example, external nutrient input (N, P, K, Ca) tended to promote carbon use efficiency, while climate warming showed more negative influence. Conclusion Further, overwhelming works focused on single constraint, we suggest the importance to consider the synergistic influence of multiple environmental variables on microbial carbon use efficiency, special for the regulation mechanism of biological-environmental interactions.

Run Dang

Jian Liu

Eric Lichtfouse

Lifeng Zhou

Meng Zhou

Leilei Xiao

Annals of Microbiology

微生物学年鉴涵盖了基础微生物学和应用微生物学的这些领域：一般、环境、食品、农业、工业、生态学、土壤、水、空气和生物退化。该期刊的范围不包括医学微生物学或植物病理学微生物学。欢迎报告关于细菌、真菌、微藻和噬菌体工作的论文。微生物学年鉴发表评论文章、原创文章、短通讯和社论。最初成立为 ANNALI DI MICROBIOLOGY ED ENZIMOLOGIA 于 1940 年出版，ANNALS OF MICROBIOLOGY 是米兰大学的官方期刊。

The Annals of Microbiology covers various fields of basic and applied microbiology, including general microbiology, environmental microbiology, food microbiology, agricultural microbiology, industrial microbiology, ecology, soil, water, air, and bioremediation. The journal does not include medical microbiology or plant pathology microbiology. Submissions on bacteria, fungi, microalgae, and bacteriophages are welcome. The journal publishes commentary articles, original research, short communications, and editorials. Originally established in 1940 as ANNALI DI MICROBIOLOGY ED ENZIMOLOGIA, the Annals of Microbiology is the official journal of the University of Milan.

《Annals of Microbiology》涵盖基础微生物学和应用微生物学的多个领域，包括一般微生物学、环境微生物学、食品微生物学、农业微生物学、工业微生物学、生态学、土壤、水、空气及生物降解等。该期刊不涉及医学微生物学或植物病理学微生物学。欢迎提交关于细菌、真菌、微藻和噬菌体的研究论文。期刊发表评论文章、原创研究、短通讯和社论。该期刊最初成立于1940年，名为《ANNALI DI MICROBIOLOGY ED ENZIMOLOGIA》，是米兰大学的官方期刊。

Category	Quartile
生物学	4
生物学, 生物工程与应用微生物	4
生物学, 微生物学	4

Soil microbial carbon use efficiency and the constraints

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