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Quantitative analysis of planation surfaces of the upper Yangtze River in the Sichuan-yunnan Region, Southwest China

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Frontiers of Earth Science 2019年第1期13卷 55-74页

作者： Fenliang LIU Hongshan gao Baotian PAN Zongmeng LI Huai SU Key Laboratory of Westem China's Environmental Systems (Ministry of Education) College of Earth and EnvironmentalSciences Lanzhou UniversityLanzhou 730000China School of Geographic Sciences Xinyang Normal UniversityXinyang 464000China College of Tourism and Geography Science Yunnan Normal UniversityKunming 650500China

Identification of the planation surfaces (PSs)is key for utilizing them as a reference in studying the long- term geomorphological evolution of the Upper Yangtze River Basin in the Sichuan-Yurman region,Southwest *** a combined method of DEM-based fuzzy logic and topographic and fiver profiles analysis and based on a comprehensive analysis of four morphometfic parameters:slope,curvature,terrain raggedness index, and relative height,we established the relevant fuzzy membership functions,and then calculated the membership degree (MD)of the study *** show that patches with a MD>80% and an area>0.4 km^2 correspond well to the results of Google Earth and field investigation,representing the PS *** consist of 1764 patches with an altitude,area,mean slope,and relief of mostly 2000-2500 m above sea level (asl),0-10 km^2,4°-9°,0-500 m,respectively,covering 9.2% of the study area's landscape,dipping to southeast,decreasing progressively from northwest to southeast in altitude,and with no clear relation between each patch's altitude and slope,or *** these results indicate that they are remnants of once regionally continuous PSs which were deformed by both the lower crust flow and the faults in upper crust,and dissected by the network of Upper Yangtze ***,topographic and river profiles analysis show that three PSs (PS1-PS3)well developed along the main valleys in the Yongren-Huili region, indicating several phases of uplift then planation during the Late Cenozoic *** on the incision amount deduced from projection of relict river profiles on PSs, together with erosion rates,breakup times of the PS 1,PS2,and PS3 were estimated to be 3.47 Ma,2.19 Ma,and 1.45 Ma,respectively,indicating appearance of modem Upper Yangtze River valley started between the Pliocene to early Pleistocene.

关键词： planation surface fuzzy logic topographic analysis river profile analysis Upper Yangtze River Southwest China

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Landslide Displacement Prediction Based on Time Series and PSO-BP Model in Three Georges Reservoir, China

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Journal of Earth Science 2024年第3期35卷 1079-1082页

作者： Dexiang gao Kou Li Yuncheng Cai Tao Wen School of Geosciences Yangtze UniversityWuhan 430100China School of Science Yunnan Agricultural UniversityKunming 650201China

0 INTRODUCTION Landslides are one of the most frequent geological disasters in the world(Wen et al.,2020;Froude and Petley,2018),which have occurred frequently and widely distributed in China for a long *** landslides are essentially a complex multidimensional nonlinear dynamic system affected by its own geological conditions and external factors(Ma et al.,2021;Wang et al.,2019),including geotechnical characteristics,hydrogeology,geomorphologic conditions,climate,and weathering(Ma et al.,2020).The interaction of these factors makes the change of landslide displacement random,fuzzy and variable(Park and Michalowski,2017),and also brings great difficulties to the landslide displacement prediction(Ma et al.,2018).

关键词： landslide Landslide weathering

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Climate change projection over the Tibetan Plateau based on a set of RCM simulations

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Advances in Climate Change Research 2021年第3期12卷 313-321页

作者： FU Yuan-Hai gao Xue-Jie ZHU Ying-Mo GUO Dong Climate Change Research Center Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing100029China Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science&TechnologyNanjing210044China University of Chinese Academy of Sciences Beijing100049China Department of Atmospheric Sciences Yunnan UniversityKunming650504China

Tibetan Plateau(TP,with the height>3000 m)is a region with complex topographical features and a large diversity of climate both in space and *** use of higher resolution regional climate models(RCMs)to downscale global climate model simulations is of high *** the present study,future climate change over TP and the surrounding areas is investigated based on the ensemble of a set of the 21st century climate change projections using the RCM *** model is driven by five different GCMs at a grid spacing of 25 km under *** focus is on the December—January-February(DJF),June-July-August(JJA),and annual mean temperature and precipitation,with comparisons against the driving GCMs also ***,the RegCM4 greatly improves the simulation by providing finer scale spatial details of both temperature and precipitation distributions over the *** topographic effects are well reproduced by RegCM4 but not the *** the projected future changes,general wanning and increase in precipitation are found in both GCM and RegCM4 ***,substantial differences exist in both the spatial distribution and magnitude of the *** added value of RegCM4 for temperature,in addition to the finer spatial details,is characterized by a more pronounced warming in DJF over TP compared to its surrounding *** projected changes of precipitation show also differences between RegCM4 and the driving *** increase of precipitation is more pronounced and over the basins in DJF for RegCM4,and in general with a better agreement across the simulations compared to the driving GCMs.

关键词： Climate change Regional climate model Tibetan plateau

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体脂含量和不同身体指数评价体育专业大学生营养状况的效度研究

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搏击(武术科学) 2011年第3期8卷 111-113页

作者：高春刚宋淑华云南师范大学体育学院

文章采用人体测量学、生物电阻抗法对运动训练专业105名大学生进行体成分测量并探讨体脂含量和不同身体指数对运动员营养状况评价的相关性与一致性。研究结果表明:采用不同身体指数对运动员营养状况的判别结果不尽相同;BF%与各指数的相... 详细信息

文章采用人体测量学、生物电阻抗法对运动训练专业105名大学生进行体成分测量并探讨体脂含量和不同身体指数对运动员营养状况评价的相关性与一致性。研究结果表明:采用不同身体指数对运动员营养状况的判别结果不尽相同;BF%与各指数的相关性依次是:腰臀比>肥胖度>劳雷尔指数>BMI>克托莱指数。腰臀比、肥胖度、劳雷尔指数对运动员营养状况评判方面均有一定的应用价值。建议:在不具备体成分分析仪的情况下,可选用腰臀比、肥胖度、劳雷尔指数替代BF%、BMI指标,在应用时要注意特殊身材个体的处理,不宜使用克托莱指数判别运动员营养状况。

关键词：体脂百分比胖度克托莱指数体质量指数劳雷尔指数腰臀比

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11—15岁学生性格发展模式的研究

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心理学探新 2000年第3期20卷 33-37页

作者：张锋高建昆窦刚云南师范大学教育系昆明650092

本研究以 776名 11- 15岁汉族与白族中小学生为被试 ,研究了学生性格发展的年龄模式。结果表明 ,年龄因素对学生性格发展的影响显著 ,在被测量的 2 4种性格特质中 ,有 18种特质在性质上表现为随年龄的增长而逐步提高的趋势 ,但是在 13... 详细信息

本研究以 776名 11- 15岁汉族与白族中小学生为被试 ,研究了学生性格发展的年龄模式。结果表明 ,年龄因素对学生性格发展的影响显著 ,在被测量的 2 4种性格特质中 ,有 18种特质在性质上表现为随年龄的增长而逐步提高的趋势 ,但是在 13岁组发现特质发展的低谷。

关键词：中小学生性格发展年龄模式方差分析 Q检验

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A new species of Malus in China,Malus shizongensis Liu ***

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Journal of Integrative Agriculture 2020年第10期19卷 2451-2457页

作者： LIU Zhen-zhong LI Zhong-xing gao Hua BAO Cha-na College of Horticulture Northwest A&F UniversityYangling 712100P.R.China State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple College of HorticultureNorthwest A&F UniversityYangling 712100P.R.China

Based on morphological,molecular biological,and molecular systematic studies,we describe here a new species of Malus from yunnan,*** compared the morphology of this new species,Malus shizongensis Liu ***,with three Malus species,including ***,***,and *** the appearance of *** was similar to these three species,it differed in height,branch color,branch hair,and flower *** better identify the taxonomy of this new species,genome of *** and that of seven Malus species,including ***,***,***,***,***,***,and *** were analyzed.A phylogenetic tree based on genome analysis indicated that *** was close to ***,*** had its species-specific SNPs,and the number of species-specific SNPs was similar to that of three close species(***,***,and ***).Based on the above information,we named this new species as *** Liu ***.

关键词： Malus new species taxonomy

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Spatiotemporal variation and hotspots of climate change in the Yangtze River Watershed during 1958-2017

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Journal of Geographical Sciences 2022年第1期32卷 141-155页

作者： CHENG Guowei LIU Yong CHEN Yan gao Wei Institute of International Rivers and Eco-security Yunnan Key Laboratory of International Rivers and Transboundary Eco-SecurityYunnan UniversityKunming 650091China College of Environmental Science and Engineering Key Laboratory of Water and Sediment Sciences(MOE)Peking UniversityBeijing 100871China State Environmental Protection Key Laboratory of Environmental Planning and Policy Simulation Chinese Academy for Environmental PlanningBeijing 100012China Institute of Environmental and Ecological Engineering Guangdong University of TechnologyGuangzhou 510006China

The Yangtze River Watershed in China is a climate change hotspot featuring strong spatial and temporal variability;hence, it poses a certain threat to social development. Identifying the characteristics of and regions vulnerable to climate change is significantly important for formulating adaptive countermeasures. However, with regard to the Yangtze River Watershed, there is currently a lack of research on these aspects from the perspective of natural and anthropogenic factors. To address this issue, in this study, based on the temperature and precipitation records from 717 meteorological stations, the RClim Dex and random forest models were used to assess the spatiotemporal characteristics of climate change and identify mainly the natural and anthropogenic factors influencing climate change hotspots in the Yangtze River Watershed for the period 1958-2017. The results indicated a significant increasing trend in temperature, a trend of wet and dry polarization in the annual precipitation, and that the number of temperature indices with significant variations was 2.8 times greater than that of precipitation indices. Significant differences were also noted in the responses of the climate change characteristics of the sub-basins to anthropogenic and natural factors;the delta plain of the Yangtze River estuary exhibited the most significant climate changes, where 88.89% of the extreme climate indices varied considerably. Furthermore, the characteristics that were similar among the identified hotpots, including human activities(higher Gross Domestic Product and construction land proportions) and natural factors(high altitudes and large proportions of grassland and water bodies), were positively correlated with the rapid climate warming.

关键词： Yangtze River Watershed climate change RClim Dex Random Forest anthropogenic and natural factors hotspots

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Multi-fractal Behaviors of Relative Humidity over China

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Atmospheric and Oceanic Science Letters 2013年第2期6卷 74-78页

作者： gao Li-Hao FU Zun-Tao Department of Atmospheric and Oceanic Sciences & Laboratory for Climate and Ocean-Atmosphere Studies School of Physics Peking University Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric Physics Chinese Academy of Sciences

The multi-fractal ity over China are studied behaviors of relative humid using the multi-fractal de trended fluctuation analysis （DFA） method. Three multi fractal parameters （the spectrum width Aa, the asymmetry Aaas, and the long-range correlation exponent a0） of the singularity spectrum are introduced to quantify the multi-fractal behaviors. The results show that multi-frac tality exists in daily humidity records over most stations in China and is mainly due to the broad distribution of the probability density of the sequence values. Strong multi fractal behaviors over some stations in the yunnan, Guangdong, and Inner Mongolia provinces are obvious. These behaviors are mainly caused by different long range correlations between large and small fluctuations. The asymmetry of the singularity of relative humidity records is weak, except for a small number of stations in the far east and west of China, where the singularity spec trum is left-skewed. Finally, the long-range correlations in North China are stronger than those in South China, which indicates better predictability in North China. By studying the parameters of the multi-fractal spectrum, various data of long-range power law correlations of the relative humidity records are obtained, which may pro vide theoretical support for climate prediction.

关键词： long-range correlation scaling exponent multi-fractal multi-fractal detrended fluctuation analysisCitation: gao L.-H. and Z.-T. Fu 2013: Multi-fractalbehaviors of relative humidity over China Atmos. Oce-anic Sci. Lett. 6 74-78.

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Eastward subduction of the Indian plate beneath the Indo-Myanmese arc revealed by teleseismic P-wave tomography

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Earthquake Science 2022年第4期35卷 243-262页

作者： Yu gao Jiansi Yang Yu Zheng Institute of Geophysics China Earthquake AdministrationBeijing 100081China

The deep structure of the eastward-subducting Indian plate can provide new information on the dynamics of the India-Eurasia *** collected and processed waveform data from temporary seismic arrays(networks)on the eastern Tibetan Plateau,seismic arrays in Northeast India and Myanmar,and permanent stations of the China Digital Seismic Network in Tibet,Gansu,Qinghai,yunnan,and *** combined these data with phase reports from observation stations of the International Seismological Center on the Indian plate and selected 124,808 high-quality P-wave relative travel-time ***,we used these data to invert the 3-D P-wave velocity structure of the upper mantle to a depth of 800 km beneath the eastern segment of the arcuate Himalayan orogen,at the southeastern margin of the Tibetan *** results reveal a high-angle,easterly dipping subducting plate extending more than 200 km beneath the Indo-Myanmese *** plate breaks off at roughly 96°E;its fragments have passed through the 410-km discontinuity(D410)into the mantle transition zone(MTZ).The MTZ beneath the Tengchong volcanic area contains a high-velocity anomaly,which does not exceed the Red River fault to the *** other large-scale continuous subducted plates were observed in the ***,a horizontally spreading high-velocity anomaly was identified on the D410 in some *** anomaly may represent the negatively buoyant 90°E Ridge plate or a thickened and delaminated lithospheric block experiencing collision and compression at the southeastern margin of the Tibetan *** Tengchong volcano may originate from the mantle upwelling through the slab window formed by the break-off of the subducting Indian continental plate and oceanic plate in the upper ***-velocity upper mantle materials on the west side of the Indo-Myanmese arc may have supplemented materials to the Tengchong volcano.

关键词： teleseismic tomography plate gap Indo-Myanmese arc Tengchong volcano 90°E Ridge

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The flip side of the coin:ecological function of the bee-hawking Asian hornet

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Integrative Zoology 2020年第2期15卷 156-159页

作者： gao CHEN Zhiming ZHANG Guillaume CHOMICKI Weibang SUN yunnan Key Laboratory for Integrative Conservation of Plant Species with Extremely Small Populations KunmingChina CAS Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunmingChina Institute of Ecology and Geobotany School of Ecology and Environmental SciencesYunnan UniversityKunmingChina Department of Plant Sciences University of OxfordUK The Queen’s College High StreetOxfordUK

Biological invasions around the world have experienced an unprecedented increase over the past few decades as a result of global change,worldwide trade and human mobility(Mack et al.2000).Invasive species have serious ecological and economic impacts across the *** the areas with high levels of invasion,Europe faces the greatest biological invasion(van Kleunen et al.2015).The European Union commissioned a report on invasive alien species to assess their ecological and economic ***,the Asian bee-hawking hornet Vespa velutina Lepeletier,1836 is in the line of fire in Europe(Rome&Villemant 2016).This hornet species is known as a serious predator of pollinators(such as honeybees),thus severely affecting insect pollination as well as apiculture in various European countries(Villemant et al.2011).

关键词： invasion king function

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