Insights into the associations between soil quality and ecosystem multifunctionality driven by fertilization management: A case study from the North China Plain

Jia, Rong; Zhou, Jie; Chu, Juncong; Shahbaz, Muhammad; Yang, Yadong; Jones, Davey L.; Zang, Huadong; Razavi, Bahar S.; Zeng, Zhaohai

doi:10.1016/j.jclepro.2022.132265

Cited by 87 publications

(39 citation statements)

References 53 publications

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“…The enzyme activities were expressed per SOC unit (i.e., specific activities) as C is an important determinant of belowground functioning (Blagodatskaya & Kuzyakov, 2013; Sinsabaugh et al, 2009). The three enzyme activities were averaged to represent the C‐acquiring enzyme activities (Jia et al, 2022; Luo et al, 2018).…”

Section: Methodsmentioning

confidence: 99%

Marginal land conversion to perennial energy crops with biomass removal enhances soil carbon sequestration

Zhou

Feng

et al. 2022

GCB Bioenergy

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Marginal land conversion to perennial energy crops can provide biomass feedstocks and climate change mitigation. However, the effect of perennial energy crop cultivation on soil organic carbon (SOC) sequestration and its underlying mechanism in marginal land still remains incomplete. Here, SOC turnover, stability, and its potential sequestration were evaluated based on 10 years of land use change from C3 grass‐dominated marginal land to C4 energy crops Miscanthus and switchgrass cultivation. The naturally occurring 13C signature down to 60 cm depth was used to determine the energy crops‐derived C. Compared to reference marginal land, Miscanthus plantation increased the SOC stock at 0–60 cm depth by 17.8% and 64.3% in bulk and root zone, respectively. Similarly, the SOC stock under switchgrass was also 16.5% and 93.0% higher in bulk and root zone than in reference marginal land, respectively. The higher SOC stock in the root zone of switchgrass relative to Miscanthus was supported by the higher contribution of C4‐derived C to SOC (44.5% vs. 32.4%). The mean residence time of old C was higher under switchgrass than Miscanthus in the bulk zone across 0–60 cm (p < 0.05) but remained the same at 0–20 cm in the root zone. Specific SOC mineralization and temperature sensitivity were lower in soils under Miscanthus and switchgrass compared to reference marginal land. The partial least squares path model revealed that perennial energy crop cultivation enhances soil C stock via increased C4‐derived C input and reduced mineralization. In conclusion, marginal land conversion to perennial energy crops is a win–win strategy for C sequestration to mitigate climate change and support the growing bioenergy sector with biomass supply.

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Section: Methodsmentioning

confidence: 99%

Marginal land conversion to perennial energy crops with biomass removal enhances soil carbon sequestration

Zhou

Feng

et al. 2022

GCB Bioenergy

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“…The microbial C:N:P ratio determines the direction of microbial activity and the release of organic nutrients 11 . Soil C, N, and P availability generally limit the metabolism of microorganisms [12][13][14] . When soil microbial resources are limited, plantmicrobe competition for nutrients increases, posing a threat to plant colonization and growth 15,16 .…”

Section: Introductionmentioning

confidence: 99%

“…We believe that it is the result of the interaction of various microorganisms with other factors (including temperature, moisture, nitrogen, phosphorus, and crop roots), which indirectly re ects the availability of soil resources 22,23 . It is an effective indicator for evaluating the limit of soil microbial resources [12][13][14] . Currently, the most commonly used method to characterize soil microbial resource limitations is the ratio of carbon, nitrogen, and phosphorus-related enzyme activities, enzyme stoichiometric vector analysis (vector length and vector angle), and threshold elements ratios (TERC:N and TERC:P) 2,7,24 .…”

Section: Introductionmentioning

confidence: 99%

“…The nutrient content of farmland soil changes with fertilization. These changes alter the soil C, N, and P stoichiometry, and greatly affect the C, N, and P of soil enzyme activities and microbial biomass 27,28,13 . The imbalance between soil microbial demand and soil substrate supply can affect C, N, and P nutrient cycling 9 .…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies on the C, N, and P stoichiometry were used to re ect ue-cured tobacco soil fertility levels 36 . However, to our knowledge, only a few studies have elucidated the effects of different fertilization treatments on the limitation of microbial resources in tobacco-growing soils in recent years 13,24 . On the other hand, many studies have con rmed that microbial fertilizers instead of chemical fertilizers can promote the absorption and transformation of soil available nutrients while reducing environmental pollution, and improving soil fertility 37 .…”

Section: Introductionmentioning

confidence: 99%

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Microbial fertilizer regulates C:N:P stoichiometry and alleviates phosphorus limitation in flue-cured tobacco planting soil

Feng

Chen

Tiyuan

et al. 2022

Preprint

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By studying the response of soil and microbial biomass stoichiometric characteristics to fertilization, it is possible to optimize effective fertilization management during flue-cured tobacco growing periods. In this study, we studied the effect of compound fertilizers combined with microbial fertilizer treatments on stoichiometric characteristics of rhizosphere soil and the limitation of microbial resources during the flue-cured tobacco growth periods. The results indicated that soil and microbial C:N:P varied greatly with the growing period, the effect of sampling time was usually greater than fertilization treatment, and the microbial C: N:P did not vary with the soil resource stoichiometric ratios. With the extension of the growth period, the microbial metabolism of tobacco-growing soil was limited by phosphorus and showed a trend of increasing first and then decreasing. The rhizosphere soil microbial resources nitrogen and phosphorus limitation were mainly affected by soil water content, soil pH, microbial biomass carbon, and the ratio of microbial biomass carbon to microbial biomass phosphorus, and the application of microbial fertilizers can reduce phosphorus limitation. Therefore, the application of microbial fertilizers regulates the limitation of microbial resources by affecting the soil and microbial biomass C: N: P in flue-cured tobacco rhizosphere soils.

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Short‐term reduction in cropping intensity improves soil quality of topsoil rather than subsoil

et al. 2023

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Enhancing cropping intensity is the most effective and significant method to improve regional crop production and ensure food security. However, our understanding of the impacts of reduced cropping intensity on soil quality and ecosystem multifunctionality (EMF) with soil depth remains incomplete in tropical regions. Here, we performed a 4‐year field experiment to estimate the impacts of cropping intensity (continuous cropping, winter fallow, and annual fallow) on soil quality and EMF depending on soil depths. We found that reduced cropping intensity improved soil quality at the topsoil (0–10 cm), while it had no significant influences on soil carbon (C) and nitrogen (N) storage, as well as soil EMF at 0–40 cm. Soil microbes were limited by C and P but not co‐limited by N in all three cropping systems. Reduced cropping intensity exacerbated microbial C limitation at 0–10 cm due to reduced additional C resources (i.e., rice straw and manure) input. Redundancy analysis and Pearson correlation showed that soil N significantly affected the C‐, N‐, and P‐acquisition enzyme activities, and correlated positively with soil organic C, microbial biomass C, and available P. In conclusion, short‐term reduction in cropping intensity improves topsoil quality but not soil EMF under paddy‐upland rotations in the tropical region.

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Insights into the associations between soil quality and ecosystem multifunctionality driven by fertilization management: A case study from the North China Plain

Cited by 87 publications

References 53 publications

Marginal land conversion to perennial energy crops with biomass removal enhances soil carbon sequestration

Marginal land conversion to perennial energy crops with biomass removal enhances soil carbon sequestration

Microbial fertilizer regulates C:N:P stoichiometry and alleviates phosphorus limitation in flue-cured tobacco planting soil

Short‐term reduction in cropping intensity improves soil quality of topsoil rather than subsoil

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