Soil moisture regime and mound position effects on soil profile properties in a native tallgrass prairie in northwest Arkansas, USA

Durre, Tyler; Brye, Kristofor R.; Wood, Lisa S.; Gbur, Edward E.

doi:10.1016/j.geoderma.2019.05.045

Cited by 9 publications

(17 citation statements)

References 34 publications

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“…According to McGinnies [12], mounded soils contained 66% more nitrogen than inter-mound positions, which would account for mounds producing larger quantities of biomass. At the current site, soil total nitrogen was unaffected by mound position [36]. Soil pH was similar between and across soil moisture regimes for mound summit and inter-mound positions, with exception of the udic mound and udic inter-mound, in which the inter-mound had a more alkaline pH [36].…”

Section: Soil Depth Effects On Dry-down Rates Of Selected Precipitatimentioning

confidence: 71%

“…At the current site, soil total nitrogen was unaffected by mound position [36]. Soil pH was similar between and across soil moisture regimes for mound summit and inter-mound positions, with exception of the udic mound and udic inter-mound, in which the inter-mound had a more alkaline pH [36]. The water contents in the current study may have been too large in the inter-mounds to promote optimal plant growth, which would explain why herbage production was generally at least numerically larger in the mound summits of both soil moisture regimes.…”

Section: Soil Depth Effects On Dry-down Rates Of Selected Precipitatimentioning

confidence: 74%

“…In the Arkansas River Valley, in a silt loam surface, redox depletions were identified at the soil surface in inter-mound pedons, whereas depletions were not present in mounded soil profiles until a depth of 85 cm, indicating that intermound soils are generally wetter than mounded profiles [9]. Soil moisture was likely greater and retained longer in inter-mound soil profiles due to greater clay concentrations and lower saturated hydraulic conductivities typical of inter-mound soils than in mounded profiles [7,36].…”

Section: Water Content Dynamicsmentioning

confidence: 99%

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Soil Moisture Regime and Mound Position Effects on Soil Water and Vegetation in a Native Tallgrass Prairie in the Mid-Southern United States of America

Durre¹,

Brye²,

Wood³

et al. 2020

Grasses and Grassland Aspects

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Prairie mounds are unique soil surface features that will become increasingly scarce as native tallgrass prairies are continually lost. This study aimed to evaluate (i) whether the soil moisture regime (SMR), mound position, and soil depth affect soil volumetric water content (VWC) and (ii) whether the SMR and mound position affect vegetation over time. Soil VWC was measured continuously from April 2017 to June 2018, and vegetation was sampled in June and August 2017 and in May and August 2018. Maximum VWC for selected rainfall events was ~ 2.5 times greater at 10 cm in the aquic inter-mound than the udic mound position at 30 cm. Soil dry-down rates were four times greater in the udic soil at 10 cm than the aquic soil at 30 cm. Aboveground plant biomass was numerically largest (8489 kg ha −1) at the aquic summit in August 2018 and smallest (1280 kg ha −1) at the aquic intermound in May 2018. Results clearly demonstrate the effects that prairie mound topography and differing SMRs have on soil water dynamics and prairie vegetation and suggest that management efforts need to account for mound topography and SMR in order to be most successful.

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Section: Soil Depth Effects On Dry-down Rates Of Selected Precipitatimentioning

confidence: 71%

Section: Soil Depth Effects On Dry-down Rates Of Selected Precipitatimentioning

confidence: 74%

Section: Water Content Dynamicsmentioning

confidence: 99%

See 1 more Smart Citation

Soil Moisture Regime and Mound Position Effects on Soil Water and Vegetation in a Native Tallgrass Prairie in the Mid-Southern United States of America

Durre¹,

Brye²,

Wood³

et al. 2020

Grasses and Grassland Aspects

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show abstract

“…Similar to Durre et al (2019), based on individually measured sand, clay, and SOM concentrations, soil bulk density was estimated for the top 20 cm at each earthworm/soil sampling point using the Soil Water Characteristics sub-routine of the Soil Plant Atmosphere Water (SPAW) model (version 6.02.75; USDA-NRCS, 2017), which uses multiple regression relationships among various easily measurable soil properties to predict other difficult-to-measure soil properties (Saxton et al, 1986). Measured soil property concentrations were converted to contents (g m −2 ) using the estimated soil bulk density and 20-cm sampling interval to better reflect actual magnitudes of measured elements and compounds in subsequent data analyses than just relative concentrations.…”

Section: Earthworm and Soil Sample Collectionmentioning

confidence: 96%

Earthworm differences among mound positions in native prairies in the Ozark Highlands

Hensley

Brye

Savin

et al. 2021

Agrosystems Geosci & Env

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Mounded, tallgrass prairie ecosystems are a unique, endangered ecosystem due to severe disturbance for agricultural production and/or urban expansion. Limited research exists on earthworm (Lumbricus terrestris) dynamics in mounded, tallgrass prairies, particularly in the Ozark Highlands region of northwestern Arkansas. The objectives of this study were to evaluate the effects of soil moisture regime (SMR), landscape position (LP), and sample date on earthworm densities in the top 20 cm of soil in two mounded, native prairies in the Ozark Highlands region of northwestern Arkansas. Juvenile and total earthworm densities were five times greater (P < .05) in the udic‐ and aquic‐inter‐mound combinations than any other SMR‐LP combination in October 2018 and May 2019, respectively. Adult earthworm densities were two times greater (P < .05) in the aquic‐inter‐mound at Searles Prairie than any other SMR‐LP combination in either mounded prairie. Juvenile earthworm densities were three times greater (P < .05) in May 2019 than in May 2018 at Chesney Prairie, but adult and total earthworm density did not change over the same period of time. Combined across all data, juvenile and total earthworm densities were positively correlated (P < .05) with moisture (r = .33 and .34, respectively), Ca (r = .20 and .21, respectively), and Fe (r = .53 and .52, respectively), but negatively correlated (P < .05) with Mn (r = –.34 and –.32, respectively). Results of this study extended overall understanding of earthworm population distributions and dynamics in mounded prairie systems.

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“…Soil moisture has been shown to be a key factor that influences soil quality in northwest China [1]; it affects soil physical properties [2] and restricts the dissolution and transfer of nutrients and microbial activities [3]. Soil moisture is also a key factor in soil fertility and a necessary element for crop growth [4,5].…”

Section: Introductionmentioning

confidence: 99%

Effects of Earthworm Cast Application on Water Evaporation and Storage in Loess Soil Column Experiments

Shao

Wang

2020

Sustainability

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Earthworm cast is a common bio-organic fertiliser, which can effectively improve soil fertility and structure. However, only a few studies have focused on the effect of earthworm cast on soil water movement. In this study, loess soil was used to determine the effects of earthworm cast application on soil evaporation. The effects on water storage capacity and capillary upward movement were also investigated. A laboratory-based soil column experiment using earthworm cast with different particle sizes (1–3 × 1–2 cm and 3–5 × 2–4 cm) and three application doses (5%, 7.5%, and 10%) was carried out. The daily evaporation and volume of capillary ascension were monitored. The addition of earthworm cast clearly affected the soil evaporation by changing soil water storage capacity and capillary water upward movement. Compared with control soil, the application of 5% small-particle cast reduced the soil cumulative evaporation by 5.13%, while the cumulative evaporation was higher in all large-particle cast treatments. The upward capillary water movement increased with increasing dose of earthworm cast, but decreased with increasing particle size. Overall, the addition of earthworm cast clearly enhanced the water storage capacity of the soil, with the small-particle cast having greater effects than the large-particle cast. We concluded that the application of 5% small-particle earthworm cast can enhance soil water retention and reduce soil evaporation.

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Soil moisture regime and mound position effects on soil profile properties in a native tallgrass prairie in northwest Arkansas, USA

Cited by 9 publications

References 34 publications

Soil Moisture Regime and Mound Position Effects on Soil Water and Vegetation in a Native Tallgrass Prairie in the Mid-Southern United States of America

Soil Moisture Regime and Mound Position Effects on Soil Water and Vegetation in a Native Tallgrass Prairie in the Mid-Southern United States of America

Earthworm differences among mound positions in native prairies in the Ozark Highlands

Effects of Earthworm Cast Application on Water Evaporation and Storage in Loess Soil Column Experiments

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