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宁夏城镇居民家庭理财产品购买意愿与选择行为研究

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北方民族大学学报（哲学社会科学版） 2017年第1期 141-144页

作者：王瑜谢昱 Mohammed Y. A. Rawwas 北方民族大学商学院宁夏银川750021 宁夏银行金融市场部宁夏银川750021 university of northern iowa college of business administration IOWA USA

通过对宁夏银川、石嘴山、吴忠三个城市的城镇居民家庭理财产品选择行为抽样调查,构建了宁夏城镇居民家庭理财产品购买意愿Probit模型和种类选择Possion模型,得出民族变量对城镇居民家庭非银行储蓄理财产品购买意愿没有显著影响,但是对... 详细信息

通过对宁夏银川、石嘴山、吴忠三个城市的城镇居民家庭理财产品选择行为抽样调查,构建了宁夏城镇居民家庭理财产品购买意愿Probit模型和种类选择Possion模型,得出民族变量对城镇居民家庭非银行储蓄理财产品购买意愿没有显著影响,但是对于非银行储蓄理财产品的种类选择存在一定影响。对于城镇回族居民家庭而言,受教育程度、收入水平、收益性关注度和宗教信仰虔诚程度四个变量影响较为显著。最后,提出了相应的对策建议。

关键词：理财产品购买意愿民族差异性

Observation and Simulation of Near-Surface Wind and Its Variation with Topography in Urumqi,West China

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Journal of Meteorological Research 2016年第6期30卷 961-982页

作者：金莉莉李振杰何清缪启龙张虎强杨兴华 Institute of Desert Meteorology China Meteorological Administration Urumqi 830002 China Desert Atmosphere and Environment Observation Station at Taklimakan Tazhong 841000 China Lincang Meteorological Bureau of Yannan Province Lincang 677099 China college of Applied Meteorology Nanjing University of Information Science & Technology Nanjing 210044 China Bureau of Meteorology Melbourne VIC 3001 Australia

Near-surface wind measurements obtained with five 100-m meteorology towers, 39 regional automatic stations, and simulations by the Weather Research and Forecasting （WRF） model were used to investigate the spatial structure of topography-driven flows in the complex urban terrain of Urumqi, China. The results showed that the wind directions were mainly northerly and southerly within the reach of 100 m above ground in the southern suburbs, urban area, and northern suburbs, which were consistent with the form of the Urumqi gorge. Strong winds were observed in southern suburbs, whereas the winds in the urban, northern suburbs, and northern rural areas were weak. Static wind occurred more frequently in the urban and northern rural areas than in the southern suburbs. In the southern suburbs, wind speed was relatively high throughout the year and did not show significant seasonal variations. The average annual wind speed in this region varied among 1.9-5.5, 1.1-3.6, 1.2 4.3, 1.2 4.3, and 1.1 3.5 m s-1 within the reach of 100 m above ground at Yannanlijiao, Shuitashan, Liyushan, Hongguangshan, and Midong, respectively. The flow characteristics comprised more airflows around the mountain, where the convergence and divergence were dominated by the terrain in eastern and southwestern Urumqi. Further analysis showed that there was a significant mountain-valley wind in spring, summer, and autumn, which occurred more frequently in spring and summer for 10- 11 h in urban and northern suburbs. During daytime, there was a northerly valley wind, whereas at night there was a southerly mountain wind. The conversion time from the mountain wind to the valley wind was during 0800-1000 LST （Local Standard Time）, while the conversion from the valley wind to the mountain wind was during 1900- 2100 LST. The influence of the mountain-valley wind in Urumqi City was most obvious at 850 hPa, according to the WRF model.

关键词： mountain-valley wind near-surface wind simulation topography Urumqi

Unpaved road erosion after heavy storms in mountain areas of northern China

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International Soil and Water Conservation Research 2022年第1期10卷 29-37页

作者： Chunmei Wang Baoyuan Liu Qinke Yang Guowei Pang Yongqing Long Lei Wang Richard M.Cruse Weiqin Dang Xin Liu Enheng Wang Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity College of Urban and Environmental SciencesNorthwest UniversityXi'an710127PR China Key Laboratory of National Forestry and Grassland administration on Ecological Hydrology and Disaster Prevention in Arid Regions Xi'an710048PR China Advanced Institute of Natural Sciences Beijing Normal University at ZhuhaiZhuhai519087PR China State Key Laboratory of Earth Surface Processes and Resource Ecology School of GeographyBeijing Normal UniversityBeijing100875PR China Department of Agronomy Iowa State UniversityAmesIA50011USA Suide Experimental Station for Soil and Water Conservation the Yellow River Conservancy CommissionYulinShaanxi719000PR China Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education Northeast Forestry UniversityHarbinHeilongjiang150040PR China

More frequent extreme rainfall events associated with global climate change cause greater challenges for soil *** erosion occurs on many unpaved roads since these structures create important water flow paths during heavy *** present research aimed to investigate the intensity and influencing factors of unpaved road erosion under varied land use and management conditions(sloping cropland,terraced cropland,forest&grass).The erosion occurred in the watersheds contributing runoff water to roads after the greatest rainfall event recorded in the mountain area of northern China caused by Typhon *** research was conducted in an agricultural-forest-dominated watershed based on field investigation and UAV-based image analysis.A road erosion level classification standard was given according to the occurrence of rills,ephemeral gullies,and *** erosion happened on 67% of the unpaved roads;42% of them suffered moderate to severe erosion in which ephemeral gullies or gullies *** average erosion amount from these roads was 2280.75 t ha-1 and was significantly influenced by the watershed land use type and *** dominant factor governing unpaved road erosion associated with terraced cropland was vegetation coverage on *** area was the most important factor for road erosion in sloping cropland and forest&grass land,and road gradient was also a critical ***,and forest&grass in drainage areas significantly reduced unpaved road erosion by 85%and,47%,respectively,compared to sloping *** integrated measures should be used to prevent unpaved road *** results of this research can be applied to road protection against erosion in heavy storms.

关键词： Unpaved road erosion Heavy storm Gully Land management Climate change

Late Pleistocene-Holocene slip history of the Langshan-Seertengshan piedmont fault(Inner Mongolia,northern China) from cosmogenic ^(10)Be dating on a bedrock fault scarp

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Journal of Mountain Science 2016年第5期13卷 882-890页

作者： SHEN Xiao-ming LI De-wen TIAN Yun-tao LV Yan-wu LI Da-wei LI Yan-feng Key Laboratory of Crustal Dynamics Institute of Crustal DynamicsCEA Department of Earth Sciences University College London National Earthquake Response Support Service CEA

Offset geomorphic features and deformed late Quaternary strata indicate active deformation along the Langshan-Seertengshan piedmont fault （LSPF）, one of the most active faults in the Hetao fault zone in Inner Mongolia, North China. The widespread occurrence of bedrock fault scarps along the LSPF offers excellent opportunity to examine the faulting history. Using cosmogenic ^10Be exposure dating, we measured the exposure ages of the western Langshankou scarp, located in the middle segment of the LSPF. Our data revealed at least two earthquakes that occurred at 22.2±3.3 Ira and 7.2±2.4 ka, respectively. These events are consistent with previous paleoseismic trench studies. The regression of the relationship between the age and sampling height along the scarp yield a fault slip rate of 0.10 ±0.05/-0.06 mm/yr, which is significantly lower than the average post-late Pleistocene fault slip rate of ~1 mm/yr, as estimated from the offset of the T2 terraces by previous studies. This indicates that the slip of the LSPF may have been accommodated by other fault branches.

关键词： Lanshan-Seertengshan piedmont fault(LSPF) Fault scarp Cosmogenic nuclide Exposureage Fault slip rate