Microfaunal soil food webs in Mediterranean semi-arid agroecosystems. Does organic management improve soil health?

Sánchez‐Moreno, Sara; Cano, Miriam; López-Pérez, José Antonio; Benayas, José María Rey

doi:10.1016/j.apsoil.2017.12.020

Cited by 34 publications

(18 citation statements)

References 67 publications

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“…In line with our hypothesis (2a), we observed a strong impact of land‐use type on microbial properties, confirming previous investigations reporting higher levels of microbial activity in grasslands compared to croplands (Acosta‐Martinez et al., 2008; Francaviglia et al., 2017; French et al., 2017; Sánchez‐Moreno et al., 2018; Schlatter et al., 2017; Siebert, Thakur, et al., 2019). Soil microbes benefit from year‐round vegetation cover in grasslands, as dense plant canopies reduce soil water loss (Vogel et al., 2013).…”

Section: Discussionsupporting

confidence: 92%

Low‐intensity land‐use enhances soil microbial activity, biomass and fungal‐to‐bacterial ratio in current and future climates

Sünnemann

Alt

Kostin

et al. 2021

Journal of Applied Ecology

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Section: Discussionsupporting

confidence: 92%

Low‐intensity land‐use enhances soil microbial activity, biomass and fungal‐to‐bacterial ratio in current and future climates

Sünnemann

Alt

Kostin

et al. 2021

Journal of Applied Ecology

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“…wildfire, windstorms, and plant invasion) or human activities (e.g. pollution, land management, and ecosystem conversions) in many studies (Schutter et al, 2001;Gömöryová et al, 2011;Jangid et al, 2011;Whitford et al, 2014;Čerevková et al, 2013;Renčo & Baležentiené, 2015;Sánchez-Moreno et al, 2018). In present comprehensive study we evaluated their differences amongst ecosystems (natural, semi-natural, and managed) and soil types (CM, CS, and SS) measured by various community parameters.…”

Section: Discussionmentioning

confidence: 99%

“…The supposed benefits of management of agricultural land (e.g. tillage, fertilisation, and crop rotation) include increased soil C and N contents, fertility, water retention, and overall provision of ecosystem services (Garbach et al, 2017;Sánchez-Moreno et al, 2018). The low C and N contents in our AGR soils, however, suggested differences in the quantity and quality of inputs to the soil, nutrient inputs and losses, low plant diversity and stimulation of decomposition by soil disturbance compared to the semi-natural (MEA) and natural (FOR) ecosystems.…”

Section: Relationships Of Ecosystem Type With Soil Properties and Nemmentioning

confidence: 99%

The effect of soil type and ecosystems on the soil nematode and microbial communities

2020

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SummaryIntegrated studies are required to better understand the relationships between groups of soil microfauna under the influence of various biotic and abiotic factors that drive and characterise ecosystems. We analysed soil nematode communities and microbial diversity and the properties of three soil types to assess the effect of these environmental variables on biological diversity in natural (forest), semi-natural (meadow), and managed (agriculture) habitats of the Slovak Republic. The type of ecosystem and soil and the interaction of both factors had considerable effects on most monitored abiotic and biotic soil properties. The forest with a Chernozem soil had the most nematode species, highest nematode diversity, highest abundance of nematode within functional guilds, best values of ecological and functional indices, highest microbial biomass, highest microbial richness and diversity, and the highest values of various soil properties, followed by meadows with a Cambisol soil. The agricultural ecosystem with a Stagnosol soil had the lowest biological diversity and values of the soil properties. Several nematode species were new for Slovak nematode fauna. Sampling date and the interaction of all three factors (ecosystem × soil × date) had minor or no effect on most of the parameters, except soil moisture content, microbial richness, nematode channel ratio, nematode maturity index, and plant parasitic index. Both the biological indicators and basic soil properties indicated that the natural forest with a Chernozem soil was the best habitat from an ecological point of view. This ecosystem is thus the most appropriate for ecological studies.

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“…Soil nematodes possess several attributes that make them useful as ecological indicators of soil biodiversity and soil functions: (i) nematodes occur in various trophic levels across the soil food web; (ii) they are relatively small and have short life cycles responding quickly to environmental changes; (iii) some can survive in extreme environments and perturbed soils; and (iv) they can be extracted from soil and their densities estimated easily. As a result of such characteristics, nematode‐based ecological indices have been used widely to assess soil biological conditions in various agricultural systems 9–12 . For soil quality evaluation, different levels of information can be derived from studying soil nematode communities, which includes both direct information about the contribution of different feeding groups as well as complex functional information derived from nematode‐based ecological indicators.…”

Section: Introductionmentioning

confidence: 99%

“…As a result of such characteristics, nematode-based ecological indices have been used widely to assess soil biological conditions in various agricultural systems. [9][10][11][12] For soil quality evaluation, different levels of information can be derived from studying soil nematode communities, which includes both direct information about the contribution of different feeding groups as well as complex functional information derived from nematode-based ecological indicators. Nematode-based ecological indices include (i) indicators of the successional stage of the nematode community, as maturity indices, 13,14 (ii) soil food web indices as indicators of the soil food web condition, 15 and (iii) indicators of the magnitude of the functions developed by nematodes, as nematode metabolic footprints.…”

Section: Introductionmentioning

confidence: 99%

The impact of fluazaindolizine on free‐living nematodes and the nematode community structure in a root‐knot nematode infested vegetable production system

Talavera

Thoden²,

Vela-Delgado

et al. 2021

Pest Management Science

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BACKGROUND Fluazaindolizine is a novel sulfonamide nematicide that is currently under commercialization in various countries. Four trials (two in tomato, two in zucchini) were carried out over two growing seasons in a root‐knot nematode (RKN; Meloidogyne incognita)‐infested plastic house to test the effects of a single application of fluazaindolizine at 1000 and 2000 g ha–1, on RKN, the resident nematode community and to estimate any side effects on the soil food web and soil ecological functions. The composition of the nematode community was evaluated at three sampling times, pre‐treatment (before soil preparation), at planting (after nematicide application) and at harvest. Nematode abundance and nematode‐based ecological indices, such as maturity indices, soil food web indices (Structure, Basal, Enrichment index) and metabolic footprints were calculated and compared between the untreated and nematicide treatments at various sampling times. RESULTS In both crops the test rates of fluazaindolizine significantly reduced both the soil numbers of RKN as well as the observed root galling at harvest. Fluazaindolizine treatments showed a low impact on the numbers of other plant‐parasitic nematodes, and at harvest the numbers of some ectoparasites as Telotylenchus even showed higher values within the nematicide‐treated plots than in the untreated control. Overall, fluazaindolizine treatments neither decreased the bacterivorous, fungivorous or omnivorous nematode densities, nor reduced the maturity and soil food web indices. However, we observed some slight reductions in the structure index as well as increases in the basal index that might indicate some adverse impact on soil functions resulting from the nematicide application. Still those impacts were considered small compared to the impact of the soil preparation. CONCLUSIONS Overall, fluazaindolizine showed a good level of selectivity towards RKN and therefore could become a useful tool within integrated nematode management approaches that also complements soil health and maintaining diversity in soil.

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Microfaunal soil food webs in Mediterranean semi-arid agroecosystems. Does organic management improve soil health?

Cited by 34 publications

References 67 publications

Low‐intensity land‐use enhances soil microbial activity, biomass and fungal‐to‐bacterial ratio in current and future climates

Low‐intensity land‐use enhances soil microbial activity, biomass and fungal‐to‐bacterial ratio in current and future climates

The effect of soil type and ecosystems on the soil nematode and microbial communities

The impact of fluazaindolizine on free‐living nematodes and the nematode community structure in a root‐knot nematode infested vegetable production system

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