Horizontal wind erosion flux and potential dust emission in arid and semiarid regions of China: A major source area for East Asia dust storms

Wang, Haibing; Jia, Xiaoxu; Li, Kuan; Li, Yongshan

doi:10.1016/j.catena.2015.06.011

Cited by 47 publications

(15 citation statements)

References 32 publications

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“…Bullard et al, 2004;Bullard and White, 2005;Swet et al, 2019). This ranking is generally consistent with PM 10 emission rates measured by passive sand traps on specific landforms in other regions of China (coppice dunes > dunes > stony surfaces > grasslands; H. Wang et al, 2015) and in wind tunnel experiments (wadis/ river beds > lakebeds > gobi; X. The formation of surface crusts effectively reduces the emission potential of dry lake beds.…”

Section: Landform Type and Dust Emission Potentialsupporting

confidence: 77%

“…Munkhtsetseg et al, 2016Munkhtsetseg et al, , 2017. Wang et al, 2005a;Wang et al, 2008), field passive sand traps (H. Wang et al, 2015) and laboratory wind tunnel measurements (X. However, similar quantitative data from northern China are scarce.…”

Section: Introductionmentioning

confidence: 99%

“…X. Wang et al, 2005a;Wang et al, 2008), field passive sand traps (H. Wang et al, 2015) and laboratory wind tunnel measurements (X. Wang et al, 2017), relatively little attention has focused on the seasonal heterogeneity in dust emissions.…”

Section: Introductionmentioning

confidence: 99%

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Quantifying the effect of geomorphology on aeolian dust emission potential in northern China

Cui

Wiggs

et al. 2019

Earth Surf Processes Landf

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Representation of dust sources remains a key challenge in quantifying the dust cycle and its environmental and climatic impacts. Direct measurements of dust fluxes from different landform types are useful in understanding the nature of dust emission and characterizing the dynamics of soil erodibility. In this study we used the PI‐SWERL® instrument over a seasonal cycle to quantify the potential for PM10 (particles with diameter ≤10 μm) emission from several typical landform types across the Tengger Desert and Mu Us Sandy Land, northern China. Our results indicate that sparse grasslands and coppice dunes showed relatively high emission potentials, with emitted fluxes ranging from 10−1 to 101 mg m−2 s−1. These values were up to five times those emitted from sand dunes, and one to two orders of magnitude greater than the emissions from dry lake beds, stone pavements and dense grasslands. Generally, PM10 emission fluxes were seen to peak in the spring months, with significant reductions in summer and autumn (by up to 95%), and in winter (by up to 98%). Variations in soil moisture were likely a primary controlling factor responsible for this seasonality in PM10 emission. Our data provide a relative quantification of differences in dust emission potential from several key landform types. Such data allow for the evaluation of current dust source schemes proposed by prior researchers. Moreover, our data will allow improvements in properly characterizing the erodibility of dust source regions and hence refine the parameterization of dust emission in climate models. © 2019 John Wiley & Sons, Ltd. © 2019 John Wiley & Sons, Ltd.

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Section: Landform Type and Dust Emission Potentialsupporting

confidence: 77%

Section: Introductionmentioning

confidence: 99%

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Quantifying the effect of geomorphology on aeolian dust emission potential in northern China

Cui

Wiggs

et al. 2019

Earth Surf Processes Landf

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“…Thus, the average annual PM10 emission of Northern China was 109.86 Tg/a during the study period. The value we obtained was similar to the field‐observed results of Wang, Jia, Li, and Li () and the estimated results of Huneeus et al () through global dust models.…”

Section: Results Analysissupporting

confidence: 91%

“…In the calibration, there were 120 observations, and the absolute value of deviation ( Re ) was controlled less than 17% (Table ). Using the calibrated model, we simulated the horizontal sand flux in Northern China from 2009 to 2011 and validated the results by the field‐observed data of Wang et al (). He acquired horizontal sand flux observations from March 2009 to April 2011 using a network of 452 passive sand traps (Figure ), and the data were collected during four overlapping intervals: Periods 1 (8/3/2009–15/7/2009), 2 (10/6/2009–29/5/2010), 3 (29/3/2010–19/5/2010), and 4 (7/5/2010–29/3/2011).…”

Section: Methodssupporting

confidence: 62%

Estimation of soil organic carbon, nitrogen, and phosphorus losses induced by wind erosion in Northern China

Wang

Xue

et al. 2019

Land Degrad Dev

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The loss of nutrients induced by wind erosion causes serious land degradation. Northern China suffers from severe wind erosion that causes massive amounts of soil nutrients to be lost and results in land degradation. To thoroughly comprehend the mechanisms of land degradation in Northern China, the spatiotemporal distribution of nutrients losses induced by wind erosion must be considered. Therefore, in this study, a wind erosion model was employed to obtain the PM10 emissions in Northern China from 2001 to 2014, and the quantities of soil organic carbon (SOC), total nitrogen (TN), and total phosphorus (TP) entrained by PM10 were obtained using the integrated soil database of China. The results showed that the losses of SOC, TN, and TP induced by wind erosion were 0.894, 0.184, and 0.123 Tg/a, respectively, and the spatial distributions of these three nutrients differed from one another. According to the Moderate Resolution Imaging Spectroradiometer land‐cover data, the nutrients lost from desert ecosystems contributed the largest fractions of the total nutrients lost in Northern China, and the fractions of SOC, TN, and TP losses from the desert ecosystems all exceeded 50%. Following the desert ecosystems, the grassland ecosystems also had higher fractions of nutrients losses. The farmland ecosystems, which were the most severely impacted by human activities, contributed to less than 10% of the total nutrients losses.

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Aeolian process of the dried-up riverbeds of the Hexi Corridor, China: a wind tunnel experiment

Zhang

Wang

Dong

et al. 2017

Environ Monit Assess

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Wind tunnel studies, which remain limited, are an important tool to understand the aeolian processes of dried-up riverbeds. The particle size, chemical composition, and the mineral contents of sediments arising from the dried river beds are poorly understood. Dried-up riverbeds cover a wide area in the Hexi Corridor, China, and comprise a complex synthesis of different land surfaces, including aeolian deposits, pavement surfaces, and Takyr crust. The results of the present wind tunnel experiment suggest that aeolian transport from the dried-up riverbeds of the Hexi Corridor ranges from 0 to 177.04 g/m/min and that dry riverbeds could be one of the main sources of dust emissions in this region. As soon as the wind velocity reaches 16 m/s and assuming that there are abundant source materials available, aeolian transport intensity increases rapidly. The dried-up riverbed sediment and the associated aeolian transported material were composed mainly of fine and medium sands. However, the transported samples were coarser than the bed samples, because of the sorting effect of the aeolian processes on the sediment. The aeolian processes also led to regional elemental migration and mineral composition variations.

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Horizontal wind erosion flux and potential dust emission in arid and semiarid regions of China: A major source area for East Asia dust storms

Cited by 47 publications

References 32 publications

Quantifying the effect of geomorphology on aeolian dust emission potential in northern China

Quantifying the effect of geomorphology on aeolian dust emission potential in northern China

Estimation of soil organic carbon, nitrogen, and phosphorus losses induced by wind erosion in Northern China

Aeolian process of the dried-up riverbeds of the Hexi Corridor, China: a wind tunnel experiment

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