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| 1 | New discoveries on the effects of desertification on the ground temperature of permafrost and its significance to the Qinghai-Tibet Plateau显示文摘The desert and permafrost conditions of the Qinghai-Tibet Plateau are unique.However,the effects of desertification on the ground temperature of permafrost are currently unclear.Recently,understanding this problem has become more urgent because of increasing desertification on the plateau.For this reason,an observational field experiment was undertaken by the authors at Honglianghe on the Qinghai-Tibet Plateau.Thermistor ground temperature probes were used,and synchronized contrasting observations were made in an open area.Observations of the ground temperature of permafrost below sand layers with a range of thicknesses were made from May 2010 to April 2011.The sand layers were found to play a key role in the protection of the underlying permafrost.The ground temperature below a permafrost table overlain by a thick sand layer was lower than that of the average annual temperature for the natural ground surface,and the temperature drop was roughly constant at 0.2°C.During the warmer part of the year (May to September),the maximum temperature drops over the five months were 3.40,3.72,4.85,3.16,and 1.88°C,respectively.The ground temperature near a permafrost table overlain by a thin sand layer was also lower than that of the average annual temperature for the natural ground surface.However,in this case the average of the annual maximum temperature drop was significantly less,0.71°C.The scientific significance of our preliminary conclusions is not only to present an exploration of the interaction between desertification and permafrost,but also to provide new engineering ideas for protecting the permafrost in regions where construction is required on the Qinghai-Tibet Plateau. | XIE ShengBo QU JianJun ZU RuiPing ZHANG KeCun HAN QingJie | 2012 | Chinese Science Bulletin2012，57，8： | 8 |
| 2 | Wind tunnel simulation experiment and investigation on the electrification of sandstorms显示文摘Electric discharge phenomenon is often observed during the passage of sandstorms over desert regions and sometimes does great damage to human beings. Based on previous researches on the electrification of sandstorms by the scholars both at home and aboard,the authors conducted the simulation experiments on the electric fields of sandstorm-triggered creeping-saltating sand, suspending sand and watered suspending sand in the large-scale wind tunnel. According to the experimental results the electric field structure and its formation mechanism were analysed and discussed, the quantity of electric charges and electric field strengthwere measured and calculated, and finally several conclusions were drawn. | QU Jianjun YAN Muhong DONG Guangrong ZHANG Hongfa ZU Ruiping TUO Wanquan ZHAO Aiguo XIAO Zhenghua LI Fang YANG Bao | 2004 | Science China Earth Sciences2004，47，6： | 2 |
| 3 | Temporal variations of sandstorms in Minqin oasis during 1954–2000显示文摘 | Kecun Zhang Jianjun Qu Ruiping Zu Haiyan Fang | 2005 | Environmental Geology2005，，2： | 1 |
| 4 | Pulsatory characteristics of wind velocity in sand flow over typical underlying surfaces显示文摘Pulsatory characteristics of wind velocity in sand flow over Gobi and mobile sand surface have been investigated experimentally in the wind tunnel. The primary goal of this paper is to reveal the relation- ship between pulsatory characteristics of instantaneous wind speed in sand flow and the motion state of sand grains. For a given underlying surface, pulsation of wind velocities in sand flow on different heights has a good correlation. As the space distance among different heights increases, fluctuation of instantaneous wind speed presents a decreasing trend and its amplitude is closely related to the mo- tion state of sand grains and their transport. Pulsatory intensity increases with the indicated wind speed, but its relative value does not depend on it, only agrees with height. | ZHANG KeCun QU JianJun ZU RuiPing FANG HaiYan | 2007 | Science China Earth Sciences2007，50，2： | 1 |
| 5 | Field observations on the protective effect of semi-buried checkerboard sand barriers显示文摘 | Jianjun Qu Ruiping Zu Kecun Zhang Haiyan Fang | 2006 | Geomorphology2006，，1： | 1 |
| 6 | Field observations on the protective effect of semi-buried checkerboard sand barriers显示文摘 | Jianjun Qu Ruiping Zu Kecun Zhang Haiyan Fang | 2006 | Geomorphology2006，，1： | 1 |
| 7 | Characteristics of near - surface wind regimes in the Taklimakan Desert, China 显示文摘 | Ruiping Zu Xian Xue Mingrui Qiang | 2008 | Geomorphology2008，96，12： | 1 |
| 8 | A study of the characteristics of aeolian sand activity and the effects of a comprehensive protective system in a coastal dune area in southern China显示文摘 | Jianjun Qu Qingjie Han Guangrong Dong Kecun Zhang Ruiping Zu | 2013 | Coastal Engineering2013，，： | 1 |
| 9 | Environmentalchanges of oasis at southern margin of Tarim Basin,China显示文摘 | Zu Ruiping Gao Qianzhao Qu Jianjin | 2003 | Environmental Geology2003，44，： | 1 |
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