Soil Aggregate Stability as Affected by Landuse and Soil Properties in the Lower Mississippi River Valley

Anderson, Rebecca L.; Brye, Kristofor R.; Wood, Lisa S.

doi:10.2136/sssaj2019.05.0139

Cited by 19 publications

(22 citation statements)

References 65 publications

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“…In the same line, AS was significantly lower in VINE and CROP, compared to FOR. This is also attributed to the conventional management applied, which is known to reduce AS [64][65][66]. The high BD and the reduced WHC, AFP, and AS imposed by intensive tillage and agrochemicals application are the causes for the significantly lower water infiltration in VINE and CROP than FOR.…”

Section: Discussionmentioning

confidence: 99%

Agricultural and Forest Land-Use Impact on Soil Properties in Zagreb Periurban Area (Croatia)

et al. 2020

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In urban areas, land use usually increases soil degradation. However, there are areas occupied by agriculture and woodlands with an essential role in provisioning food and other services such as water and climate regulation. The objective of this work was to assess the effect of long-term land use and soil management practices on peri-urban soils in Zagreb (Croatia). Samples were collected at depth 0–10 cm within intensively tilled cropland (CROP) and vineyard (VINE), traditional grass-covered orchard (ORCH), and forest (FOR). The results showed that bulk density was significantly higher in VINE and CROP than in ORCH and FOR. The opposite dynamic was observed in water-holding capacity, air-filled porosity, aggregate stability, organic matter, and soil organic matter stocks (SOCS). Soil water infiltration was higher in FOR plot compared to the other plots. Overall, land-use change had a substantial impact on soil properties and SOCS, especially in CROP and VINE soils. Tillage, pesticides, and fertilizer applications were presumably the reasons for altered soil quality properties. Intensively used areas (VINE and CROPS) may reduce soil ecosystems services such as the capacity for flood retention and C sequestration.

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Section: Discussionmentioning

confidence: 99%

Agricultural and Forest Land-Use Impact on Soil Properties in Zagreb Periurban Area (Croatia)

et al. 2020

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“…Soil aggregation is an important indicator of soil structural stability (Kalhoro et al., 2017; Sekaran et al., 2021; Six et al., 2000; Tourn et al., 2019) that influences soil health factors, including (a) soil organic C (SOC) conservation and nutrient dynamics (Rodríguez et al., 2021; Somasundaram et al., 2017; Weidhuner et al., 2021; S. Xu et al., 2021), (b) porosity and water retention (Regelink et al., 2015; Sekaran et al., 2021), (c) water infiltration and surface runoff, and (d) soil erosion (Anderson et al., 2019). Soil organic matter (SOM) is one of the major binding agent responsible for formation and stabilization of soil micro‐ (<250 μm) or macroaggregates (>250 μm) (Jastrow & Miller, 1998; Six et al., 1999; Tisdall & Oades, 1982).…”

Section: Introductionmentioning

confidence: 99%

Land management effects on wet aggregate stability and carbon content

Mikha

Jin

Johnson

et al. 2021

Soil Science Soc of Amer J

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Land management affects soil structure and many other soil properties and processes. Our objectives were to evaluate soil organic C (SOC), aggregate size distribution, aggregate‐associated C, and soil structure as affected by long‐term land management and slope. A chronosequence of 38 on‐farm sites with low to high (5–18%) slopes was selected to evaluate 5–40 yr of management. The sites were classified as business as usual (BAU) cropland (BAU‐Crop), BAU pasture (BAU‐Past), newly established conservation reserve program (CRP) areas (CRP‐New), and established CRP (CRP‐Old). Soil samples were collected from the 0‐to‐5‐ and 5‐to‐15‐cm depth increments and processed for soil property measurements including fractionation by wet sieving into five aggregate size classes (>2,000, 1,000–2,000, 500–1,000, 250–500, and 53–250 μm). Within the surface 5 cm, mean weight diameter (MWD) and geometric mean diameter (GMD) were used to characterize soil structural stability. The BAU‐Past and CRP‐Old sites had 79% more macroaggregates (>2,000, 1,000–2,000, and 500–1,000 μm), 123% higher MWD, 38% higher GMD, and 47% higher SOC than BAU‐Crop or CRP‐New sites. The 5‐to‐15‐cm depth increment showed a similar but lower magnitude response. Aggregate‐associated C was quantified using a constant soil mass that reflected aggregate size distribution to prevent overestimating C content. Lower‐slope locations had more SOC, more macroaggregates, more C associated with macroaggregates, and higher GMD and MWD compared with high‐slope locations across all management classifications and soil depths. The results support our hypothesis that the high‐slop soils may benefits from specific management decisions than the lower‐sloping soils as a function of landscape property. We recommend reestablishing grassland on sloping land that is susceptible to excessive soil erosion, although those practices will likely take a long time to restore soil structural stability and SOC content to precultivation levels.

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“…Recent studies have shown that some soil quality and aggregate stability indices are changing with management and land-use types. Anderson et al [20] reported that means of MWD wet and WSA in coniferous forests and grasslands were significantly greater than the means of those properties in croplands, including conventional-tillage and no-tillage agriculture in the lower Mississippi river valley area. Tang et al [21] showed the importance of MWD dry , MWD wet , GMD dry , GMD wet , and WSA in the different types of land in the following order: woodland > grassland > shrub land > bare land.…”

Section: Physical and Chemical Properties Of Soils Under Different Land-use Typesmentioning

confidence: 99%

“…Recently, more attention has been paid to investigating the effects of land use changes on soil properties. Anderson et al [20] reported that the MWD wet and WSA in coniferous forests and grasslands were significantly higher than those in croplands, including conventional-tillage and no-tillage agricultures. Furthermore, in Calcisol Leptosols, China, Tang et al [21] reported the values of MWD dry , GMD dry , and WSA in the different land types in the following order: wood land > grassland > shrub land > bare land.…”

Section: Introductionmentioning

confidence: 99%

Soil Sensitivity to Wind and Water Erosion as Affected by Land Use in Southern Iran

Mozaffari

Rezaei

Ostovari

2021

Earth

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Land degradation by soil erosion is one of the most severe environmental issues that is greatly dependent on land use management. In this study, the effects of long-term land use management (including annual cultivated field (ACF), fallow field (FF), rangeland (R), and orchard field (OF)), soil depth (0–10 and 10–20 cm), and soil organic matter content (SOM) on wind- and water-erosion indices were investigated in calcareous soils of southern Iran. Soil samples were collected from four above-mentioned land-use types, and some soil properties and erosion indices were measured. Results showed that the most of soil aggregates stability indices in the surface layer (0–10 cm) of OF were higher than those in ACF, FF, and R, respectively, by nearly 39%, 32%, and 47% for dry mean weight diameter of aggregates (MWDdry); 10%, 10%, and 48% for dry geometric mean weight diameter of aggregates (GMDdry); 21%, 17%, and 15% for water-stable aggregates (WSA); and 11%, 16%, and 31% for aggregate stability index (ASI). Moreover, the mean of the soil wind erosion indicators in OF (0–10 cm) were lower than those in ACF, FF, and R, respectively, by nearly 18%, 24%, and 26%, for wind-erodible fraction (EF); 43%, 38%, and 49% for soil erodibility to wind erosion (K); and 36%, 32%, and 41% for wind erosion rate (ER). In ACF, despite the high clay content, some aggregate stability indices such as MWøDdry and WSA were the lowest among studied land-use types which showed the negative effects of conventional tillage practices. Depth factor had only a significant effect on dust emission potential (DEP) in ACF, FF, and OF. In addition, there were significant and strong correlations between SOM and MWDdry (r = 0.79), WSA (r = 0.77), EF (r = −0.85), K (r = 0.74), and ER (r = 0.74) in all datasets.

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Soil Aggregate Stability as Affected by Landuse and Soil Properties in the Lower Mississippi River Valley

Cited by 19 publications

References 65 publications

Agricultural and Forest Land-Use Impact on Soil Properties in Zagreb Periurban Area (Croatia)

Agricultural and Forest Land-Use Impact on Soil Properties in Zagreb Periurban Area (Croatia)

Land management effects on wet aggregate stability and carbon content

Soil Sensitivity to Wind and Water Erosion as Affected by Land Use in Southern Iran

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