Soil aggregates stability and storage of soil organic carbon respond to cropping systems on Black Soils of Northeast China

Zhou, Meng; Liu, Chunzhu; Wang, Jie; Meng, Qingfeng; Yuan, Y.; Ma, Xueyan; Liu, Xiaobing; Zhu, Yanhui; Ding, Guangwei; Zhang, Jizhou; Zeng, Xin-Min; Du, Weiling

doi:10.1038/s41598-019-57193-1

Cited by 122 publications

(60 citation statements)

References 78 publications

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“…This may be a consequence of variations in SOM and lability under the different plant species, as a consequence of the aforementioned differences in rooting morphology and root exudate chemistry in both these plant species, compared to Lp, as such differences have been reported to influence both the Planctomycetes (Buckley et al., 2006) and the Bacteroidetes (Fierer et al., 2007). The alterations in SOM chemistry induced by a legume may also alter the size distribution of soil aggregate fractions (Zhou et al., 2020). Such a process may explain the difference in the abundance of the Gemmatimonadetes between Tp and Lp, as this phylum has been reported to be quite abundant in the inner micro‐aggregate (Mummey, Holben, Six, & Stahl, 2006).…”

Section: Discussionmentioning

confidence: 99%

Plant species identity drives soil microbial community structures that persist under a following crop

Fox

Luescher

Widmer

2020

Ecology and Evolution

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Compared to monocultures, multi‐species swards have demonstrated numerous positive diversity effects on aboveground plant performance, such as yield, N concentration, and even legacy effects on a following crop. Whether such diversity effects are seen in the soil microbiome is currently unclear. In a field experiment, we analyzed the effect that three plant species (a grass, forb, and legume), and mixtures of these, had on soil fungal and bacterial community structures, as well as their associated legacy effects under a following crop, the grass Lolium multiflorum. We utilized six sward types, three monocultures (Lolium perenne, Cichorium intybus and Trifolium pratense), two bi‐species mixtures, and a mixture of the three species. Soil samples were taken from these swards in March (at the end of a three year conditioning phase) and in June, August, and September after L. multiflorum was established, that is, the legacy samplings. When present, the differing monocultures had a significant effect on various aspects of the fungal community: structure, OTU richness, the relative abundance of the phylum Glomeromycota, and indicator OTUs. The effect on bacterial community structure was not as strong. In the multi‐species swards, a blending of individual plant species monoculture effects (identity effect) was seen in (a) fungal and bacterial community structure and (b) fungal OTU richness and the relative abundance of the Glomeromycota. This would indicate that plant species identity, rather than diversity effects (i.e., the interactions among the plant species), was the stronger determinant. During the legacy samplings, structural patterns in the fungal and bacterial communities associated with the previous swards were retained, but the effect faded with time. These results highlight that plant species identity can be a strong driver of soil microbial community structures. They also suggest that their legacy effect on the soil microbiome may play a crucial role in following crop performance.

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Section: Discussionmentioning

confidence: 99%

Plant species identity drives soil microbial community structures that persist under a following crop

Fox

Luescher

Widmer

2020

Ecology and Evolution

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“…A significantly improved soil aggregate stability, observed in the L–R–R than in the M–R–R and W–R–R, suggested that inclusion of legumes (such as lentil) in managed cropping systems had beneficial effects on soil physical properties, aggregate formation, and stability ( Chu et al., 2016; Zhou et al., 2020). Our results were in agreement with other studies that reported that the type, amount, and C:N of biomass contribution under different cropping and residue management systems determine residue decomposition and microbial utilization to influence soil aggregate properties ( Paustian et al., 1997; Sainju et al., 2003; Tivet et al., 2013; Zhou et al., 2020). Moreover, residue that decomposes quickly produces transient and temporary binding agents that are responsible for macroaggregate formation, while slow decomposition releases more processed humic materials that are responsible for stable microaggregates ( Sun et al., 1995; Sisti et al., 2004).…”

Section: Discussionmentioning

confidence: 99%

“…Globally, the soils under continuous rice monocropping are currently facing a serious threat of accelerated soil and environmental quality degradation ( Zhou et al., 2020). Rice is a staple food for half of the global population.…”

Section: Introductionmentioning

confidence: 99%

Cropping diversity with rice influences soil aggregate formation and nutrient storage under different tillage systems

Jahangir

Jahiruddin

Akter

et al. 2020

J. Plant Nutr. Soil Sci.

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Background: The soils under continuous rice monocropping are currently facing a serious threat of accelerated soil and environmental quality degradation. Aims: Examining the impact of tillage and cropping diversity on soil aggregate stability and associated nutrients in a sub‐tropical rice ecosystem. Methods: A split‐plot experiment with tillage (minimum, MT vs. conventional, CT) as a main plot and cropping diversity [mustard (Brassica napus)–rice (Oryza sativa)–rice (M–R–R), wheat (Triticum aestivum)–rice–rice (W–R–R), and lentil (Lens esculenta)–rice–rice (L–R–R)] as a sub‐plot was repeated for four years. Soil aggregate properties were measured using wet sieving techniques. Soil organic carbon (SOC) and nutrients were measured in different aggregate size groups as well as in the bulk soil samples. Results: Results show that all the aggregate size groups were similar in both MT and CT, except in 0.85–0.30 mm. Likewise, cropping diversities increased soil aggregation, being higher aggregate size of < 0.053 mm in M–R–R relative to the W–R–R and L–R–R, where the latter two were alike. By contrast, > 2 mm aggregates were higher in L–R–R than in M–R–R and W–R–R, where the latter two were similar. The MT increased aggregate mean weight diameter (MWD) by 14% in W–R–R, and by 29% in L–R–R. Soil organic carbon (SOC), total N (TN), and available P were higher in MT than in CT, while it was alike for exchangeable K and available S. While W–R–R had a higher aggregate‐associated SOC, available P, and available S, L–R–R had a higher TN, and M–R–R had a higher exchangeable K. While SOC, TN, and exchangeable K accumulated more in the > 0.85 mm size aggregates, the available P, in contrast, accumulated more in < 0.85 mm size aggregates. Conclusion: Wheat–rice–rice diversity, coupled with minimum tillage, has a higher potential for soil fertility sustenance and crop productivity through better nutrient protection.

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“…Moreover, rotation treatments also increased the water-stable aggregates stability rate (WSAR), in addition to reducing the aggregates destruction (PAD) more than the CC treatment. Furthermore, rotation rather than CC treatments enhanced the percentage of macro-aggregates [208], thus suggesting that CC may negatively affect soil aggregation, aggregate stability, and the composition of aggregate-size classes. However, the impact of CC on soil structure may differ among crops.…”

Section: Soil Aggregation and Structurementioning

confidence: 98%

“…For instance, the continuous soybean cropping reduced the soil aggregate stability [207]. A recent study reported the impact of different cropping systems such as continuous corn (CC), soybean-corn rotation (SC), corn-soybean rotation (CS), fallow corn (FC), and fallow soybean (FS) on soil aggregates stability [208]. Their results showed that the CS and FS treatments significantly enhanced the mean weight diameter (MWD) and fractal dimension (D).…”

Section: Soil Aggregation and Structurementioning

confidence: 99%

Continuous Cropping Alters Multiple Biotic and Abiotic Indicators of Soil Health

et al. 2020

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The continuous cropping (CC) of major agricultural, horticultural, and industrial crops is an established practice worldwide, though it has significant soil health-related concerns. However, a combined review of the effects of CC on soil health indicators, in particular omics ones, remains missing. The CC may negatively impact multiple biotic and abiotic indicators of soil health, fertility, and crop yield. It could potentially alter the soil biotic indicators, which include but are not limited to the composition, abundance, diversity, and functioning of soil micro- and macro-organisms, microbial networks, enzyme activities, and soil food web interactions. Moreover, it could also alter various soil abiotic (physicochemical) properties. For instance, it could increase the accumulation of toxic metabolites, salts, and acids, reduce soil aggregation and alter the composition of soil aggregate-size classes, decrease mineralization, soil organic matter, active carbon, and nutrient contents. All these alterations could accelerate soil degradation. Meanwhile, there is still a great need to develop quantitative ranges in soil health indicators to mechanistically predict the impact of CC on soil health and crop yield gaps. Following ecological principles, we strongly highlight the significance of inter-, mixture-, and rotation-cropping with cover crops to sustain soil health and agricultural production.

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Soil aggregates stability and storage of soil organic carbon respond to cropping systems on Black Soils of Northeast China

Cited by 122 publications

References 78 publications

Plant species identity drives soil microbial community structures that persist under a following crop

Plant species identity drives soil microbial community structures that persist under a following crop

Cropping diversity with rice influences soil aggregate formation and nutrient storage under different tillage systems

Continuous Cropping Alters Multiple Biotic and Abiotic Indicators of Soil Health

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