Comparison of wind erosion based on measurements and SWEEP simulation: A case study in Kangbao County, Hebei Province, China

Zhang, Jia-Qiong; Zhang, Chunlai; Chang, Chun‐Ping; Wang, Rende; Liu, Gang

doi:10.1016/j.still.2016.08.006

Cited by 40 publications

(14 citation statements)

References 37 publications

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“…Wind erosion, as a natural phenomenon, can be controlled through knowledge, awareness, planning and proper management, as with other natural phenomena, to minimize its detrimental effects (Lopez et al ., ; Zhang et al ., ). Because of the large costs of wind erosion control and difficult working conditions, determining the principles and technical practices to stabilize the soil in affected regions would be effective in reducing the costs (Zezin et al ., ).…”

Section: Introductionmentioning

confidence: 97%

Aggregation and fractal dimension of aggregates formed in sand dunes stabilized byPistachioPAMandPistachioPVAc mulches

Saiedi

Besalatpour

Shirani

et al. 2017

European J Soil Science

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Wind erosion is a serious environmental problem that has received increased attention by attracting the interest of academics, policy makers and the public. In this study, the effects of combined mulches (denoted as PistachioPAM and PistachioPVAc, used for stabilizing the sand dunes in the Davaran plain in southeastern Iran) on aggregate formation and stability indices were investigated by the theory of fractal geometry. In addition, the temporal changes in soil organic carbon (SOC) content and microbial respiration rate (MRR) in the soils treated with the mulches were compared with the control samples during a 5‐month experiment. The results showed significant (P < 0.01) increases in the SOC content and MRR following the application (1.5 l m−2) of PistachioPVAc and PistachioPAM mulches. The rate of release of CO2 was measured in the soils treated with the mulches studied. The largest rate of CO2 release from the three samples taken in weeks 2, 5 and 19 from the beginning of the experiment was about 23.0 µg‐CO2 day−1 g−1 soil. The smallest and largest mean weight diameters (MWD) of the aggregates formed were observed in the control (0.06 mm) and the PistachioPVAc (1.38 mm) treatments, respectively. The use of mulches had significant (P < 0.01) effects on the fractal dimension of aggregates. The more stable and coarser aggregates formed in the presence of PistachioPVAc had the smallest fractal dimension. The largest negative correlation between the properties investigated and the fractal dimension was for SOC and MWD. Therefore, it appears that the theory of fractal dimensions is useful for explaining the temporal variation of aggregate stability in soil stabilized by combined mulches. Highlights Effects of combined mulches on aggregate formation were investigated with fractal geometry theory (FGT). The more stable and coarser aggregates formed in the presence of PistachioPVA mulch had the smallest fractal dimension. Mulches increased soil organic carbon and microbial respiration significantly (P < 0.01). The FGT might be useful for explaining the temporal variation in aggregate stability of stabilized sand dunes.

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Section: Introductionmentioning

confidence: 97%

Aggregation and fractal dimension of aggregates formed in sand dunes stabilized byPistachioPAMandPistachioPVAc mulches

Saiedi

Besalatpour

Shirani

et al. 2017

European J Soil Science

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“…Because of the close relationship of soil erosion with the land use type (Zhang, Zhang, Chang, Wang, & Liu, ), and considering this relationship in the LUIM, the obtained results from this model have acceptable performance (McNeill et al, ). The measured wind erosion intensities using wind erosion simulator were used to validate the likelihood map accuracy resulted from the LUIM model.…”

Section: Resultsmentioning

confidence: 99%

A geographic information system‐based land use impact model to map areas with risk for land degradation: Wind erosion as an example

et al. 2020

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Wind erosion modeling is hampered by the complexity of the relationships between factors involved in this process and the absence of comprehensive empirical data. In this study, we developed a geographic information system-based Land Use Impact Model and investigated its potential use for assessing the wind erosion risk in different land uses and wind geomorphic units. The obtained results were validated by field measurements and observations using a wind erosion simulator. Comparing the measured wind erosion intensities by the wind erosion simulator with those from the likelihood map obtained from the model revealed the high potency of the developed model for assessing land degradation due to wind erosion in our data scarce arid studied regions. Almost 90% of the mapping units in the likelihood map had similar wind erosion classes to the measured values. Furthermore, there was a high wind erosion occurrence risk in most parts of the studied regions (i.e., about 64% of the study area), and no mapping units in the study area were classified as 'very low' risk class. In addition, only about 9% of the surveyed mapping units were classified as a 'low' risk class, indicating an undesirable situation of the study area with regard to wind erosion.

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“…It belongs to the southeastern margin of the Mongolian Plateau and the central region of the agro‐pastoral acetone of northern China. This region has a semiarid continental temperate monsoon climate with a windy and dry winter and spring, warm and rainy summer, and short and cool autumn (Zhang, Zhang, Chang, Wang, & Liu, ). Mean annual precipitation is 351.7 mm with 66.7% occurring between June and August.…”

Section: Methodsmentioning

confidence: 99%

Difference in wind erosion characteristics between loamy and sandy farmlands and the implications for soil dust emission potential

Wang

Zhou

et al. 2018

Land Degrad Dev

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Dust emission depends directly and indirectly on soil particle distribution, but little information is available that examines dust emission potential and its relationship with wind erosion for different soils. This study aimed to elucidate the difference in wind erosion characteristics between loamy farmland (LF) and sandy farmland (SF) and discuss the influence of this difference on dust emission potential. Field observations were conducted during 2012–2016 in Bashang district, North China. With increasing friction wind speed, the horizontal mass flux increased exponentially in LF but obeyed the power function in SF. The horizontal mass flux was higher in SF than in LF, but the gap narrowed from 766 times at friction wind speed of 0.3 m s−1 to 50 times at 0.6 m s−1. The dry aggregate size distribution of sediment in LF was finer than in SF. Fine particle content (diameter < 0.05 mm) in windblown sediment was much higher in LF (31.39%) than in SF (5.92%), which was influenced by parent soils. With height increasing, the mass percentage of sediment decreased more rapidly in SF than in LF, with 86% and 66% of sediment clustering at height 0–20 cm, respectively. Because the horizontal mass flux and dust content in sediment both increased more quickly in LF than in SF with increasing friction wind speed, the dust emission potential was larger in LF than in SF under strong winds. The adverse effect of dust emission in loamy soils on atmospheric pollution should receive more attention in strong wind erosion events.

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Comparison of wind erosion based on measurements and SWEEP simulation: A case study in Kangbao County, Hebei Province, China

Cited by 40 publications

References 37 publications

Aggregation and fractal dimension of aggregates formed in sand dunes stabilized byPistachioPAMandPistachioPVAc mulches

Aggregation and fractal dimension of aggregates formed in sand dunes stabilized byPistachioPAMandPistachioPVAc mulches

A geographic information system‐based land use impact model to map areas with risk for land degradation: Wind erosion as an example

Difference in wind erosion characteristics between loamy and sandy farmlands and the implications for soil dust emission potential

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