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Anthropogenic dust emissions due to livestock trampling in a Mongolian temperate grassland

  Mongolian grasslands are a natural dust source region and they contribute to anthropogenic dust due to the long tradition of raising livestock there. Past decades of abrupt changes in a nomadic society necessitate a study on the effects of livestock trampling on dust emissions, so that research studies may help maintain a sustainable ecosystem and well-conditioned atmospheric environment. In this study, we conducted a mini wind tunnel experiment (using a PI-SWERL® device) to measure dust emissions fluxes from trampling (at three disturbance levels of livestock density, N) and zero trampling (natural as the background level) at test areas in …Read More

Profile PhotoE_MunkhanaMarch 12, 2019

Relationships between soil moisture and dust emissions in a bare sandy soil of Mongolia

  This study presents experimental results of the change in threshold friction velocity and dust emission strength as a function of soil moisture content. The dust and soil moisture data were obtained from irrigated plots of a bare, sandy soil (no vegetation) situated in the Mongolian steppe. Dust flux was measured using the PI-SWERL® device, while soil moisture was measured using gravimetric methods. Our results demonstrate the strong controlling effects of soil moisture on both the threshold friction velocity and dust emission strengths. Threshold friction velocity increased from 0.44 m/s for dry soil (0.002 g/g) to 0.67 m/s for wet …Read More

Profile PhotoE_MunkhanaMarch 12, 2019

Numerical Simulation and Evaluation of Asian Dust Events Observed in Mongolia in Spring 2011

Lee, E.H, Munkhtsetseg, E, Kim, S.B, Lee, S.S, Ha, J.C. and Chun, Y.S. (2013): Numerical Simulation and Evaluation of Asian Dust Events Observed in Mongolia in Spring 2011. APJAS, 49(1), 111-120. The Asian dust forecasting model, Mongolian Asian Dust Aerosol Model (MGLADAM), has been operated by the National Agency for Meteorology and Environmental Monitoring of Mongolia since 2010, for the forecast of Asian dust storms. In order to evaluate the performance of the dust prediction model, we simulated Asian dust events for the period of spring 2011. Simulated features were compared with observations from two sites in the dust source …Read More

Profile PhotoE_MunkhanaMarch 12, 2019

Seasonal variation of carbon dioxide fluxes over irrigated soybean (Glycine max. L.)

Saylan, L, Kimura, R, Munkhtsetseg, E. and Kamichika, M. (2011): Seasonal variation of carbon dioxide fluxes over irrigated soybean (Glycine max. L.). Theoretical and Applied Climatology, 105, 277-286. In this study, variations in carbon dioxide (CO2) fluxes resulting from gross primary production (GPP), net ecosystem exchange (NEE), and respiration (R e) of soybean (Glycine max L.) were investigated by the Eddy Covariance method during the growing period from June to November 2005 on an irrigated sand field at the Arid Land Research Center, Tottori University in Tottori, Japan. Although climatic conditions were humid and temperate, the soybeans required frequent irrigation …Read More

Profile PhotoE_MunkhanaMarch 12, 2019

Characteristics of Dust Emission in the Mongolian Steppe during the 2008 DUVEX Intensive Observational Period

Shinoda, M, Kimura, R, Mikami, M, Tsubo, M, Nishihara, E, Ishizuka, M, Yamada, Y, Munkhtsetseg, E, Jugder, D. and Kurosaki Y. (2010): Characteristics of Dust Emission in the Mongolian Steppe during the 2008 DUVEX Intensive Observational Period. SOLA, 6, 9−12. The joint Japan-Mongolia-USA project DUVEX (Dust-Vegetation Interaction Experiment) was designed to develop a biogeophysical model which can simulate dust emission and eco-system processes over the vegetated land surface. Dust emission processes have been investigated mostly on bare land, and there is very little information about vegetated land. Thus, intensive observations were conducted of a dust event that occurred on the …Read More

Profile PhotoE_MunkhanaMarch 12, 2019

Stomatal conductance response to environmental variables and its relations to water vapor flux over a soybean planted sand dune field in a coastal area

Munkhtsetseg, E, Shinoda, M, Kimura, R. and Saylan, L. (2008): Stomatal conductance response to environmental variables and its relations to water vapor flux over a soybean planted sand dune field in a coastal area. Sand Dune Research, 54-3.Read More

Profile PhotoE_MunkhanaMarch 12, 2019
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