Dust Emission over Different Land Surface in the Arid Region of Northwest China
スポンサーリンク
概要
- 論文の詳細を見る
In this paper, the main wind erosion factors influencing dust emission are analyzed by using the observed data from the gobi and oasis sites of ADEC (Aeolian Dust Experiment on Climate impact) Project in Dunhuang station in Northwest China, and the dust emission rate over the two different land surfaces are calculated by using Shao's dust emission model. The results indicate that the threshold friction velocity over the non-ploughed cropland is larger than that over the gobi desert, while after spring ploughing, it is smaller. Dust emission rate over the ploughed cropland is largest, which is hundreds of times larger than that over the gobi desert. Over the non-ploughed cropland, dust emission rate is less than that over the ploughed cropland, but larger than that over the gobi desert, while when the friction velocity is larger than 0.8 ms^<-1> it is close or equal to that over the ploughed cropland.
- 社団法人日本気象学会の論文
- 2005-12-26
著者
-
DU Mingyuan
National Institute for Agro-Environmental Sciences
-
SHEN Zhibao
Cold and Arid Regions Environmental & Engineering Research Institute, CAS
-
Shen Z
Cold And Arid Regions Environmental And Engineering Res. Inst. Chinese Acadmy Of Sciences Lanzhou
-
Shen Zhibao
Cold And Arid Region's Environmental And Engineering Research Inst.
-
Shen Yanbo
Center For Wind And Solar Energy Resources Assessment Cma
-
SHEN Yanbo
Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Acadmy of Sciences
-
WANG Wanfu
The Conservation Institute of Dunhuang Academy
関連論文
- 風送ダストの気候への影響--日中共同プロジェクトADEC
- Size-Dependent Geochemical Characteristics of Asian Dust : Sr and Nd Isotope Compositions as Tracers for Source Identification(ADEC-Aeolian Dust Experiment on Climate Impact-)
- アジア大陸の砂漠地域上空のエアロゾル数密度-サイズ分布--中国敦煌で2001年夏と秋に行われた自由大気中での気球観測
- Relationship between the Climate Change and Dust Storm Occurrence in China
- Dust Emission over Different Land Surface in the Arid Region of Northwest China
- Characteristics of Dust Storm Outbreak and Dust Concentration Index at Dunhunag in China
- Soil Redistribution Investigations by Combined Use of Soil ^Cs and Selected Chemical Properties (Soil Genesis, Classification and Survey)
- Soil Erosion Study on Hillside in Southern Jiangsu Province Using the Cesium-137 Tracer Technique (Soil Physics)
- A Quantitative Model for Estimating Mean Annual Soil Loss in Cultivated Land Using ^Cs Measurements
- 中国の風送ダスト発生域で採取したダスト粒子の粒子物性--日本の和光市で採取した都市型エアロゾルとの比較
- Observation of Effects of Tree Planting on Local Climate in the Central Part of the Taklimakan Desert, China
- Time Series Analyses of Dust Concentrations Measured at Dunhuang Gobi Desert Site: Analyses of Asymmetry Property of Dust Concentration Index
- Tillage Effects on Aeolian Dust Emission in Bare Agricultural Fields at Dunhuang, China
- HEIFE領域における砂漠とオアシス上の地表面放射収支
- Outbreak of Foot-and-Mouth Disease in Miyazaki from March to July 2010 : Effect of Yellow Sand and Local Surface Wind