Effects of drought-flood abrupt alternation on phosphorus in summer maize farmland systems

Bi, Wuxia; Weng, Baisha; Yan, Denghua; Wang, Mengke; Wang, Hao; Wang, Jinjie; Yan, Huiling

doi:10.1016/j.geoderma.2019.114147

Cited by 31 publications

(32 citation statements)

References 62 publications

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“…The area experiences a northern subtropical and semi‐humid warm temperate continental monsoon climate. For this station, from 1963 to 2017, the average annual precipitation was 890 mm, and the maximum rainfall intensity was approximately 100 mm h −1 (Bi et al., 2020).…”

Section: Methodsmentioning

confidence: 99%

“…The area experiences a northern subtropical and semi-humid warm temperate continental monsoon climate. For this station, from 1963 to 2017, the average annual precipitation was 890 mm, and the maximum rainfall intensity was approximately 100 mm h −1 (Bi et al, 2020). The soil in the station is a dark-hydromorphic clay loam, which has a sticky texture, insufficient organic matter content from 5 to 15 g kg −1 , and low gas permeability and is easy to harden (Huan et al, 2014;Zhang et al, 2001).…”

Section: Site Descriptionmentioning

confidence: 99%

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Porous‐fiber module increases infiltration and reduces runoff

Qin

Liu

et al. 2020

Agronomy Journal

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The porous-fiber module (PFM) is an advanced product used for rainfall regulation and storage. Most studies focus on the characteristics of its constituent material while ignoring the impacts of PFM application on infiltration and runoff. In this study, several factors were comprehensively considered in the field control simulated rainfall experiments conducted on bare land, including two types of rainfall intensities, four PFM volumes, and two arrangements of the PFM, to evaluate the impacts. The experiments consisted of measuring soil water content variation, surface runoff of each treatment plot, and the cumulative infiltration obtained by water balance. The results demonstrated that the effect of PFM volume on infiltration and runoff was much greater than that of the PFM arrangement. The addition of PFM could improve the water-holding capacity of soil; this effect initially strengthened and subsequently weakened with the increase in the PFM volume. The PFM embedding increased the cumulative infiltration of the experimental plots by 5.1-79.2%, delayed the runoff start time by 0-20 min, weakened the peak by 13.6-51.1%, and reduced the runoff-yielding amount by 11.23-62.53%, compared with those of the control plot. These effects were enhanced as PFM volume increased. An empirical formula, presented as the theoretical influence of PFM volume on the product of the cumulative infiltration multiplied by the Philip model derived by the control plot, was further established for simulating the infiltration process with various PFM volumes.

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Section: Methodsmentioning

confidence: 99%

Section: Site Descriptionmentioning

confidence: 99%

Porous‐fiber module increases infiltration and reduces runoff

Qin

Liu

et al. 2020

Agronomy Journal

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“…The climate of the region is a northern subtropical and semi‐humid warm temperate continental monsoon climate. The average annual precipitation from 1963 to 2017 at the station was 890 mm, with 60% or more concentrated in the summer (Bi et al., 2020). The maximum rainfall intensity was approximately 100 mm h –1 .…”

Section: Methodsmentioning

confidence: 99%

“…The contents of sand, slit, and clay at different depths vary from 43.7 to 60.8%, 27.3 to 36.4%, and 11.8 to 21.8%, respectively. The parent material of the dark‐hydromorphic clay loam are loess sediments of ancient rivers, with a heavy texture and poor drainage conditions that seal easily (Bi et al., 2020). The distribution area of the soil is flat, with shallow and blocked groundwater.…”

Section: Methodsmentioning

confidence: 99%

Hydraulic properties of the porous‐fiber module and its effects on infiltration and runoff

Qin

Wang

et al. 2021

Agronomy Journal

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The porous-fiber module (PFM) composed of modified hydrophilic rock wool is an advanced product used for rainfall regulation. However, the hydraulic properties of the PFM and the effects of PFM embedding on key water cycle processes are unclear. In this study, to determine the water absorption and desorption properties of the PFM, a wetting front experiment was conducted in a soil box, comprehensively considering several factors, including two densities of PFM, three PFM cube side lengths, and three initial soil water contents. Furthermore, simulated rainfall experiments were conducted with three types of rainfall intensities to quantify the impacts of PFM embedding with two different patterns on soil infiltration and runoff. The results show that the maximum water absorption volume of each PFM was >93%, with that of the PFM with high density 1.75% higher than that of the low-density PFM.For a fully saturated PFM in soil, the horizontal and vertical wetting front advance rates gradually decreased and exhibited a power function relationship with time. The results of the simulated rainfall experiments indicate that a PFM cube embedded in the soil increased the infiltration rate in the later period of rainfall events, while a PFM slice separating the upper and lower soil layers showed an opposite trend. Both PFM embedding patterns effectively increased the average cumulative infiltration of the soil by 0.5-4.5% compared with that of the control groups. Moreover, they delayed the runoff time by 5-35 min and reduced the volume of the surface runoff by 5-100% under various rainfall intensities. INTRODUCTIONSoil regulates water cycle processes (Dobriyal et al., 2012;Wang et al., 2006); this function is affected by its physical Abbreviations: AIR, average infiltration rates; PFM, porous-fiber module; PFM HD , high-density porous-fiber module; PFM LD , low-density porous-fiber module; PFM LD -H, low-density porous-fiber module horizontal fiber; PFM LD -V, low-density porous-fiber module vertical fiber; PFM-IN, porous-fiber module cube embedded in the soil; PFM-SE, porous-fiber module slice separating the upper and lower soil layers; R H , horizontal wetting radius; R V , vertical wetting radius

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“…Our previous study reported that PSB in topsoil increased after DFAA, further increased soil available P (AP), especially for the DFAA with moderate drought ( Bi et al, 2020b ). It is found that the P solubilizing ability and stability of PSF are stronger than those of PSB although accounting for small proportion ( Chittora et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Responses of Phosphate-Solubilizing Microorganisms Mediated Phosphorus Cycling to Drought-Flood Abrupt Alternation in Summer Maize Field Soil

Weng

Yan

et al. 2022

Front. Microbiol.

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Soil microbial communities are essential to phosphorus (P) cycling, especially in the process of insoluble phosphorus solubilization for plant P uptake. Phosphate-solubilizing microorganisms (PSM) are the dominant driving forces. The PSM mediated soil P cycling is easily affected by water condition changes due to extreme hydrological events. Previous studies basically focused on the effects of droughts, floods, or drying-rewetting on P cycling, while few focused on drought-flood abrupt alternation (DFAA), especially through microbial activities. This study explored the DFAA effects on P cycling mediated by PSM and P metabolism-related genes in summer maize field soil. Field control experiments were conducted to simulate two levels of DFAA (light drought-moderate flood, moderate drought-moderate flood) during two summer maize growing periods (seeding-jointing stage, tasseling-grain filling stage). Results showed that the relative abundance of phosphate-solubilizing bacteria (PSB) and phosphate-solubilizing fungi (PSF) increased after DFAA compared to the control system (CS), and PSF has lower resistance but higher resilience to DFAA than PSB. Significant differences can be found on the genera Pseudomonas, Arthrobacter, and Penicillium, and the P metabolism-related gene K21195 under DFAA. The DFAA also led to unstable and dispersed structure of the farmland ecosystem network related to P cycling, with persistent influences until the mature stage of summer maize. This study provides references for understanding the micro process on P cycling under DFAA in topsoil, which could further guide the DFAA regulations.

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Effects of drought-flood abrupt alternation on phosphorus in summer maize farmland systems

Cited by 31 publications

References 62 publications

Porous‐fiber module increases infiltration and reduces runoff

Porous‐fiber module increases infiltration and reduces runoff

Hydraulic properties of the porous‐fiber module and its effects on infiltration and runoff

Responses of Phosphate-Solubilizing Microorganisms Mediated Phosphorus Cycling to Drought-Flood Abrupt Alternation in Summer Maize Field Soil

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