Wind erosion and airborne dust deposition in farmland during spring in the Horqin Sandy Land of eastern Inner Mongolia, China

Li, Fengrui; Zhao, Long; Zhang, Hua; Zhang, Tonghui; Shirato, Yasuhito

doi:10.1016/j.still.2003.08.001

Cited by 137 publications

(88 citation statements)

References 26 publications

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“…In our study, correlation analysis indicated that soil clay content had a very significant positive correlation (p < 0.01) with WHC, SOM, TN, TP, AN, AP, AK, and CEC. There was a significant positive correlation (p < 0.05) between SOM and WHC, TP, AN, AP, and AK (Table 5), which is consistent with the results of Li et al (2004a) and Zhao et al (2006). These results confirm that soil clay and organic matter content significantly influence retention and supply of many soil elements (Brubaker et al, 1993;Saggar et al, 2001;Wezel et al, 2000).…”

Section: Interrelationships Among Soil Propertiessupporting

confidence: 86%

Effects of different grassland restoration approaches on soil properties in the southeastern Horqin sandy land, northern China

Ji-you

Ouyang

Zheng

et al. 2012

Applied Soil Ecology

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Section: Interrelationships Among Soil Propertiessupporting

confidence: 86%

Effects of different grassland restoration approaches on soil properties in the southeastern Horqin sandy land, northern China

Ji-you

Ouyang

Zheng

et al. 2012

Applied Soil Ecology

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“…directly measure fluxes of aerosol particles during dust storm episodes (Bates et al, 2006;Chin et al, 2003). Several experimental approaches have been developed and used to evaluate mineral dust emission (Dong et al, 2003;Dong et al, 2004;Li et al, 2004;Ono et al, 2003). Most of them rely on indirect determinations requiring some theoretical assumptions about the way wind erosion leads to particle emission (Dong et al, 2003;Shao, 2000).…”

Section: Introductionmentioning

confidence: 99%

Size-segregated fluxes of mineral dust from a desert area of northern China by eddy covariance

et al. 2007

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Abstract. Mineral dust emission accounts for a substantial portion of particles present in the troposphere. It is emitted mostly from desert areas, mainly through intense storm episodes. The aim of this work was to quantify sizesegregated fluxes of mineral dust particles emitted during storm events occurring in desert areas of northern China (Alashan desert, Inner Mongolia), known to act as one of the strongest sources of mineral dust particles in the Asian continent. Long-range transport of mineral dust emitted in this area is responsible for the high particle concentrations reached in densely populated areas, including the city of Beijing. Based on a theoretical analysis, an eddy covariance system was built to get size-segregated fluxes of mineral dust particles with optical diameters ranging between 0.26 and 7.00 µm. The system was optimised to measure fluxes under intense storm event conditions. It was tested in two sites located in the Chinese portion of the Gobi desert. During the field campaign, an intense wind erosion event, classified as a "weak dust storm", was recorded in one of them. Data obtained during this event indicate that particle number fluxes were dominated by the finer fraction, whereas in terms of mass, coarser particle accounted for the largest portion. It was found that during the storm event, ratios of sizesegregated particle mass fluxes remained substantially constant and a simple parameterization of particle emission from total mass fluxes was possible. A strong correlation was also found between particle mass fluxes and the friction velocity. This relationship is extremely useful to investigate mechanisms of particle formation by wind erosion.

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“…7 For the study area, significant positive correlations (R 2 > 0.7) were found at a significance level of α = 0.05 among soil silt-clay content, soil organic matter, total N, total P, available N, available P, and soil moisture characteristics (e.g., field capacity) (Table 4). This indicates that the decrease of silt-clay and soil organic matter content will likely cause the decrease of nutrients and water holding capacities (López, 1998;Su and Zhao, 2003;Li et al, 2004), and that soil organic matter is key to maintaining soil nutrient and moisture levels (Larney et al, 1998;Zhao et al, 2006 Values are means ± standard deviations. SFD stands for semi-fixed dune sites, FD for fixed 4 dune sites, CL for cultivated land sites, GM for general meadow sites, and CM for control 5 meadow sites where there was no detectable erosion and sand accumulation.…”

Section: Soil Physicochemical Properties Variationsmentioning

confidence: 99%

Spatio-temporal variations in soil moisture and physicochemical properties of a typical semiarid sand-meadow-desert landscape as influenced by land use

Duan

Liu

Wang

et al. 2011

Hydrol. Earth Syst. Sci.

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Abstract.A good understanding of the interrelations between land cover alteration and changes in hydrologic conditions (e.g., soil moisture) as well as soil physicochemical properties (e.g., fine soil particles and nutrients) is crucial for maintaining the fragile hydrologic and environmental conditions of semiarid land, such as the Horqin Sandy Land in China, but is lacking in existing literature. The objectives of this study were to examine: (1) spatio-temporal variations of soil moisture and physicochemical properties in semiarid land; and (2) how those variations are influenced by land cover alteration. Using the data collected in a 9.71 km 2 well-instrumented area of the Horqin Sandy Land, this study examined by visual examination and statistical analyses the spatio-temporal variations of soil moisture and physicochemical properties. The results indicated that for the study area, the soil moisture and physicochemical properties were dependent on local topography, soil texture, vegetation density, and human activity. Long-term reclamation for agriculture was found to reduce soil moisture by over 23 % and significantly (p-value < 0.05) lower the contents of soil organic matter, fine soil particles, and nutrients.

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Wind erosion and airborne dust deposition in farmland during spring in the Horqin Sandy Land of eastern Inner Mongolia, China

Cited by 137 publications

References 26 publications

Effects of different grassland restoration approaches on soil properties in the southeastern Horqin sandy land, northern China

Effects of different grassland restoration approaches on soil properties in the southeastern Horqin sandy land, northern China

Size-segregated fluxes of mineral dust from a desert area of northern China by eddy covariance

Spatio-temporal variations in soil moisture and physicochemical properties of a typical semiarid sand-meadow-desert landscape as influenced by land use

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