Temporal variations of the distribution of water-stable aggregates, microbial biomass and ergosterol in temperate grassland soils with different cultivation histories

Linsler, Deborah; Taube, F.; Geisseler, Daniel; Joergensen, Rainer Georg; Ludwig, Bernard

doi:10.1016/j.geoderma.2014.11.013

Cited by 22 publications

(14 citation statements)

References 42 publications

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“…This was confirmed by a decrease of aggregate (2-0.25 mm) fraction and an increase of microaggregates (< 0.25 mm) in our study, which was in agreement with [25]. Destruction of macroaggregate from rainfall effect outweighed the aggregate formation, resulting in the net decline of MWD during the rainfall day [21]. Secondly, aggregate MWD fw improved again with time after rainfall stopped, and almost returned to the original value before rainfall event.…”

Section: Soil Aggregate Varied Before and After Rainfall Eventsupporting

confidence: 92%

“…Correlations between aggregate parameters and soil water indices a θ Indicates average SWC at the day of sampling (0) or certain days (0.5, 2, 4) before the day of sampling b Δθ 0.5 means difference of SWC at the time of sampling and at SWC 0.5 days before sampling 68% of rainfall water compared to that on the bare soil surface, responsible for its lowest SWC variation and the highest aggregate MWD. Similar plant effect on the relationship between SWC and aggregate was reported in Linsler et al[21] that permanent grassland soils (11 years) with low SWC in dry season resulted in high large water-stable macroaggregate proportion in surface soils, while cropland transformed from grassland with high SWC variations leaded to more aggregate destruction. Secondly, different root distribution among three plants fields also displayed different RLD and RASW r to regulate SWC regimes (r between RLD and SWC > 0.99).…”

supporting

confidence: 81%

“…Soil aggregate stability is influenced by many factors and can be impacted by seasonal and vegetation changes [9,13]. As a response to changes in soil water retention, water infiltration, and soil organic matter aggregate stability can vary over the short and a long-term seasonal scales [5,10,21,36]. Short-term changes can occur during a rainfall while long-term changes can occur across seasons or decades.…”

Section: Introductionmentioning

confidence: 99%

“…However, these changes may occur very slowly in tropical and subtropical climates [3]. Other studies suggested that soil aggregate dynamics corresponded to the variations of soil water properties [10,21]. For example, short-term decreases in soil water content (SWC) increased soil aggregate stability on bare soil [1].…”

Section: Introductionmentioning

confidence: 99%

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Variation of soil aggregates in response to soil water under short-term natural rainfalls at different land use

Huang

et al. 2019

SN Appl. Sci.

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The red soils of China, South America, and Africa are highly weathered inherently infertile soils that have high erosion risks and low soil organic carbon levels. In an effort to protect these soils, they are being converted from annual crops to woodlands in China. However, under such a land use change, soil aggregate stability variation (a key factor of soil erosion) to short-term rainfall events is not clear. The objective of this study was to investigate the influence of rainfall type, soil water contents, and vegetation on short-term changes in the aggregate stability of red soils. Surface (0-20 cm) aggregate stability, SWC and dynamics (Δθ) (differences of SWC on the sampling day and prior to the sampling), rainfall, and plant root distribution (0-60 cm) were monitored from 2017 to 2018 under fir (Taxodiaceae), rapeseed (Bassica napus) and Osmanthus fragrans land use. The results demonstrated that the aggregate size distribution and aggregate mean weight diameter were impacted by the soil water content prior to the precipitation and plant species. Plants such as fir, lowered the soil water content which improved short-term aggregate stability. Variation of aggregate under each type of rainfall was attributed to different change of SWC among plants, which was further confirmed by significantly negative relationships between aggregate fractions (< 0.5 mm) and SWC (θ 0 and θ 0.5 , on the sampling time and half day prior to sampling) under all plants. Differences of aggregates as influenced by SWC among plants was also attributed to different plant root distribution and relative root absorption of soil water rate (RASW r) [r between SWC and root percentage (d = 1-3 mm) was 0.99]. The study suggested that plant types should be carefully selected for their ability to protect the soil and the findings will also provide a theoretical basis for land restoration.

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Section: Soil Aggregate Varied Before and After Rainfall Eventsupporting

confidence: 92%

supporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Variation of soil aggregates in response to soil water under short-term natural rainfalls at different land use

Huang

et al. 2019

SN Appl. Sci.

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“…The higher stability of the aggregates in natural systems such as NF may be due to higher moisture and microbial biomass accumulation. Such factors have positive effects on the distribution of soil-aggregate diameters (Linsler et al, 2015), because microorganisms play an important role in the maintenance of levels of microbial biomass that provides mechanisms for better soil-particles fixation, aggregation, and number of macroaggregates (Wang et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

Aggregation, carbon, and total soil nitrogen in crop-livestock-forest integration in the Eastern Amazon

Silva

Veloso

et al. 2018

Rev. bras. eng. agríc. ambient.

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Sustainable agricultural production systems can improve physical attributes of soil as well as increase carbon and nitrogen stocks in soils. The objective of this study was to evaluate changes in the stability of soil aggregates and contents and stocks of carbon and nitrogen after the conversion of native forest to crop-livestock-forest integration systems in the region of Western Pará. Soil samples from five management systems (including a control) were collected at three depths in a randomized block design, with five replications. The stability of the aggregates, soil density, particle density, and total soil porosity, as well as total carbon and nitrogen and their respective stocks were evaluated. The native forest had the highest percentages of macroaggregates, followed by the integration system with African mahogany. At a depth of 0-0.10 m, the contents and stocks of carbon were higher in the agricultural area and in the integration system with cumaru, whereas nitrogen contents and stocks were higher in the native forest, followed by the integration systems with mahogany and cumaru. Compared to the other systems, the pasture area stored more carbon at depths of 0-0.10 and 0.10-0.20 m.

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Soil aggregation and aggregate‐associated organic carbon concentrations for the perennial energy crop cup plant in comparison to maize

Grunwald

Panten

Schittenhelm

2021

J. Plant Nutr. Soil Sci.

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The objectives of this study were to analyze soil aggregation and associated soil organic carbon (SOC) under cup plant and maize in a field trial (sandy loam) and two farmers' fields (both silty loams) during the 2018 growing period. On the sandy loam, aggregation under the two crops did not differ despite higher bulk SOC under cup plant. At the silty loam sites, cup plant exhibited a 64% higher aggregate mean weight diameter than maize in spring and higher aggregate‐associated SOC in autumn.

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Temporal variations of the distribution of water-stable aggregates, microbial biomass and ergosterol in temperate grassland soils with different cultivation histories

Cited by 22 publications

References 42 publications

Variation of soil aggregates in response to soil water under short-term natural rainfalls at different land use

Variation of soil aggregates in response to soil water under short-term natural rainfalls at different land use

Aggregation, carbon, and total soil nitrogen in crop-livestock-forest integration in the Eastern Amazon

Soil aggregation and aggregate‐associated organic carbon concentrations for the perennial energy crop cup plant in comparison to maize

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