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Relative Ecological Value of Major Plants in Minqin Desert Area

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Journal of Landscape Research 2015年第6期7卷 93-96页

作者： CHANG Zhaofeng MA Zhonghua DUAN Xiaofeng HAN Fugui YANG Ming Gansu Desert Control Research Institute wuwei meteorological bureau

This paper analyzed relative ecological value of several major plants in Minqin desert grassland using layered projection of plant canopy. The results showed that ecological functions of natural Nitraria tangutorum and Ephedra sinica woods of a unit area were much better than those of artifi cial Haloxylon ammodendron woods, relative ecological value of N. tangutorum, E. sinica and Artemisia desertorum were much higher than that of artifi cial H. ammodendron woods. Layered projection explains clearly the ecological functions and relative ecological value of desert vegetation of the same coverage. It is inaccurate to indicate wind prevention and sand fi xation of desert vegetation in deserts using ecological function service value and ecological niche calculated on the basis of two-dimensional vegetation coverage, but three-dimensional projection degree should be applied to indicate ecological functions and relative ecological value of vegetation. Application of layered projection of plants in calculating ecological functions and relative ecological value of desert plants(vegetation) is the innovation point of this research.

关键词： Desert steppe Layered projection degree Ecological function Relative ecological value Minqin County

Response Characteristics of Climate in the Shiyang River Basin to Global Warming

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Journal of Landscape Research 2016年第3期8卷 65-69页

作者： MA Zhonghua CHANG Zhaofeng wuwei meteorological bureau Gansu Desert Control Research Institute

meteorological data of 5 weather stations in the Shiyang River Basin on the eastern section of Hexi Corridor from 1961 to 2014 were analyzed using statistical analysis techniques such as linear trend and variance signifi cance test. The results showed that as the low temperature rose generally, temperature in stations nearby desert showed higher increase rate; annual extreme maximum temperature in stations nearby mountains showed more signifi cant increase, and annual extreme minimum temperature in stations nearby desert showed more signifi cant increase, and the increase tendency of extreme minimum temperature was more obvious than that of extreme maximum temperature; annual extreme maximum temperature in stations in desert showed higher instability; instability of annual extreme minimum temperature in all sampling points increased, and showed no obvious regularity between desert and mountain.

关键词： Global warming Climate Characteristics Desert the Shiyang River Basin

Study on Cold Wave Weather in Hexi Corridor from March 12 to 14 in 2011

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meteorological and Environmental Research 2012年第3期3卷 12-16页

作者： LUO Xiao-ling LIU Ming-chun YAN Zhi-min Drought Climate Changes and Disaster Mitigation Lab of CMA Key Lab of Drought Climate Changes and Disaster Mitigation in GansuLanzhou Drought Meteorological Institution of CMA Lanzhou 730020 China wuwei meteorological bureau Wuwei 733000 China ThePropaganda Department of wuwei City Wuwei 733000 China

[ Objectivel The aim was to study the cold wave in Hexi Corridor in 2011 and to summarize report experience. [ Method] Routine obser- vation data and Ecmwf numerical product were used to analyze the circulation background, causes and influential system of Hexi Corridor from March 12 to 14 in 2011. [Result] The cold wave in the mid-high latitude circulation in Northern hemisphere transited from radial type to warp type. High early basic temperature was the premise of cold wave. Drastic ground movement was the direct cause of cold wave. Prevailing cold advection was one primary cause of temperature reduction. Radiation in sunny days also posed certain influences on regional temperature. Factors weakened the gale were as follow, cold air largely in north area, cold air moving southeastward in diffusion, front passing early, upper and lower air conver- gence against the convection development and slow wind in high and lower air. [ Conclusion] The study provided important references for further enhancement of cold wave and gale report.

关键词： Cold wave Cold advection Gale Causes Numerical report Experiences China

Haplotype and Genetic Analysis of 41 Y-STR Loci in the wuwei Han Population from Gansu Province,China

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Current Medical Science 2023年第1期43卷 184-190页

作者： Lu-yao LI Sheng-gui FAN Hui GONG Xing FAN De-chun WANG Neng-xiu LI Fu-quan JIA Department of Pathology the First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an710061China The Judicial Authentication Center Wuwei Public Security BureauWuwei733000China Department of Forensic Medicine Inner Mongolia Medical UniversityHohhot010059China

Objective Y-Chromosomal short tandem repeat polymorphism(Y-STR)analysis plays an indispensable role in the identification of male individuals,population genetics,and biogeographic *** profiles of many populations based on Y-STR markers in human genomes are ample,haplotype data for the wuwei Han are still *** In this study,2180 unrelated wuwei Han male individuals residing in Gansu Province,China were collected and genotyped using the novel Microreader™40Y Plus ID *** relationship reconstructions,multidimensional scaling(MDS),and heatmap analysis were performed based on the genetic distance(Rst)values between our studied population and other populations of the Ymax module in the Y-STR Haplotype Reference Database(YHRD).Results A total of 2129 unique haplotypes were obtained,and the haplotype diversity(HD)and discrimination capacity(DC)for the wuwei Han were 0.9999 and 0.9931,*** Our results demonstrate that the wuwei Han population had intimate genetic relationships with East Asians,especially the geographically close Han ***,this Y-Chromosomal assay gives valuable information about paternal lineages in male individual tracking and genealogical database construction.

关键词： MicroreaderTM 40Y Plus ID system Y-STR haplotype Y-InDel wuwei Han population genetics

Diurnal Variation Characteristics of Precipitation in the Shiyang River Basin of Northwest China in Summer

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Atmospheric and Climate Sciences 2017年第4期7卷 558-576页

作者： Weicheng Liu Qiang Zhang Lingping Li Lanzhou Central meteorological Observatory Lanzhou China Institute of Arid Meteorology China Meteorological Administration Key Laboratory of Arid Climatic Change and Disaster Reduction of China Meteorological Administration/Key Laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province Lanzhou China Gansu Provincial meteorological Administration Lanzhou China wuwei meteorological bureau Wuwei China

Based on the hourly precipitation data from 32 regional meteorological stations and 5 automatic meteorological stations in summer (from June to August) over the Shiyanghe River basin from 2009 to 2013, we analyzed the diurnal variation characteristics of precipitation over the Shiyanghe River basin, by using four precipitation indices (hourly precipitation, hourly precipitation frequency, hourly precipitation intensity, and different duration precipitation). The results show that the spatial distribution of hourly precipitation, hourly precipitation frequency in summer declines from upstream to downstream over the Shiyanghe River basin because of geographical position, altitude, latitude and weather systems, and the spatial distribution of hourly intensity is complex. The precipitation, the precipitation frequency and the precipitation intensity over the Shiyanghe River basin present a diurnal pattern of double-peak distribution, with the peak periods at 01:00-09:00 and 14:00-23:00, strong precipitation present single-peak with the peak period at 14:00-23:00. Total precipitations and precipitation frequencies of 1 - 3 h short-time rainfall are more than long time rainfall continued more than 10 h over the Shiyanghe River Basin. The short-time rainfall continuing within 1 - 6 h often occurs from afternoon to evening, the long time rainfall continuing more than 6 h often occurs from evening to early morning or late afternoon to evening.

关键词： Shiyanghe River Basin Hourly Precipitation Different Duration Precipitation Diurnal Variation

Metagenomics reveals contrasting energy utilization efficiencies of captive and wild camels(Camelus ferus)

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Integrative Zoology 2022年第3期17卷 333-345页

作者： Liping YAN Liping TANG Zhichao ZHOU Wei LU Bo WANG Zhicheng SUN Xue JIANG Defu HU Junqing LI Dong ZHANG School of Ecology and Nature Conservation Beijing Forestry UniversityBeijingChina Gansu Endangered Animals Protection Center WuweiChina Administrative bureau of Dunhuang Xihu National Nature Reserve DunhuangChina

Captive conditions can affect the symbiotic microbiome of *** this study,we compared the structural and functional differences of the gastrointestinal microbiomes of wild Bactrian camels(Camelus ferus)between wild and captive populations,as well as their different host energy utilization performances through *** results showed that wild-living camels harbored more microbial taxa related to the production of volatile fatty acids,fewer methanogens,and fewer genes encoding enzymes involved in methanogenesis,leading to higher energy utilization efficiency compared to that of captive-living *** findings suggest that the wild-living camel fecal microbiome demonstrates a series of adaptive characteristics that enable the host to adjust to a relatively barren field *** study provides novel insights into the mechanisms of wildlife adaptations to habitats from the perspective of the microbiome.

关键词： adaptability energy utilization gastrointestinal microbiome metagenomics wild and captive wild Bactrian camel

Preparation of Taenia solium Stained Specimens and Morphological Observation

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Animal Husbandry and Feed Science 2017年第4期9卷 195-196,203页

作者： Yang Yicheng Zhang Guoquan Zhang Yuanlai Liu Lijun Zhang Liang Tian Qihui Zhang Jinlong Gansu Livestock Engineering Vocational and Technical College wuwei Animal Husbandry and Veterinary bureau

[ Objective ] In order to observe the morphological structure of Taenia solium and improve the dyeing method of Taenia solium. [ Method ] Taenia soli- um was stained by hematoxylin-eosin （HE） staining method and observed under microscope. Taenia solium specimens with clear structure and bright color were made. [ Results] Male reproductive system and excretory system of Taenia solium segment could be observed under the optical microscope, structures of uterus and eggs in Taenia solium gravid proglottid could also be observed. [ Conclusion] Aiming at providing a reference for the identification of Taenia solium and the diagnosis of the tapeworm disease.

关键词： Taenia solium Hematoxylin staining Morphology

Spatial-temporal dynamics of desert vegetation and its responses to climatic variations over the last three decades:a case study of Hexi region in Northwest China

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Journal of Arid Land 2016年第4期8卷 556-568页

作者： YANG Xuemei LIU Shizeng YANG Taibao XU Xianying KANG Caizhou TANG Jinnian WEI Huaidong Mihretab G GHEBREZGABHER LI Zhiqi State Key Laboratory Breeding Base of Desertification and Aeolian Sand Disaster Combating Gansu Desert Control Research Institute Institute of Glaciology and Ecogeography College of Earth and Environmental SciencesLanzhou University Eritrea Institute of Technology College of Education wuwei Natural Protection Station the Management Bureau of Gansu Qilianshan National Nature Reserve

Analysis of spatial-temporal variations of desert vegetation under the background of climate changes can provide references for ecological restoration in arid and semi-arid areas. In this study, we used the Global Inventory Modeling and Mapping Studies （GIMMS） NDVI data from 1982 to 2006 and Moderate Resolution Imaging Spectroradiometer （MODIS） NDVI data from 2000 to 2013 to reveal the dynamics of desert vegetation in Hexi region of Northwest China over the past three decades. We also used the annual temperature and precipitation data acquired from the Chinese meteorological stations to analyze the response of desert vegetation to climatic variations. The average value of NDVImax （the maximum NDVI during the growing season） for desert vegetation in Hexi region increased at the rate of 0.65x10-3/a （P〈0.05） from 1982 to 2013, and the significant increases of NDVImax mainly appeared in the typical desert vegetation areas. Vegetation was significantly improved in the lower reaches of Shule and Shiyang river basins, and the weighted mean center of desert vegetation mainly shifted toward the lower reaches of the two basins. Almost 95.32% of the total desert vegetation area showed positive correlation between NDVImax and annual precipitation, indicating that precipitation is the key factor for desert vegetation growth in the entire study area. Moreover, the areas with non-significant positive correlation between NDVImax and annual precipitation mainly located in the lower reaches of Shiyang and Shule river basins, this may be due to human activities. Only 7.64% of the desert vegetation showed significant positive correlation between NDVImax and annual precipitation in the Shule River Basin （an extremely arid area）, indicating that precipitation is not the most important factor for vegetation growth in this basin, and further studies are needed to investigate the mechanism for this phenomenon.

关键词： desert vegetation NDVI global warming spatial-temporal variations Hexi region

Emergency department use among patients from residential aged care facilities under a Hospital in the Nursing Home scheme in public hospitals in Queensland Australia

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World Journal of Emergency Medicine 2016年第3期7卷 183-190页

作者： Bill Lukin Li-jun Fan Jing-zhou Zhao Jian-dong Sun Kaeleen Dingle Rhonda Purtill Sam Tapp Xiang-yu Hou Department of Emergency Medicine Royal Brisbane and Women's Hospital Brisbane Queensland 4006 Australia School of Public Health and Social Work Queensland University of Technology Brisbane Queensland 4059 Australia bureau of Investment Promotion Wuwei City 733000 Gansu Province China Queensland Health Brisbane Queensland 4029 Australia

BACKGROUND: Hospital emergency department(ED) use by patients from residential aged care facilities(RACFs) is not always appropriate, and this calls for interventions to avoid some unnecessary uses. This study aims to compare patterns of ED use by RACF patients with and without a Hospital in the Nursing Home(Hi NH) ***: RACF patients presenting to EDs of a hospital with and a hospital without this program during pre- and post-intervention periods were included. Data on patient demographics and ED presentation characteristics were obtained from the Emergency Department Information System database, and were analysed by descriptive and comparative ***: In both hospitals, most RACF residents presenting to EDs were aged between 75–94 years, female, triaged at scale 3 to 5, and transferred on weekdays and during working hours. Almost half of them were subsequently admitted to hospitals. In accordance with the ICD-10-AM diagnostic coding system, diagnoses that consistently ranked among the top three reasons for visiting the two hospitals before and after intervention included Chapter XIX: injury and poisoning and Chapter X: respiratory diseases. Associated with the intervention, significant decreases in the numbers of presentations per 1 000 RACF beds were identified among patients diagnosed with Chapter XI: digestive diseases [rate ratio(95%CI): 0.09(0.04, 0.22); P<0.0001] and Chapter XXI: factors influencing health status and contact with health services [rate ratio(95%CI): 0.22(0.07, 0.66); P=0.007].CONCLUSION: The Hi NH program may reduce the incidence of RACF residents visiting EDs for diagnoses of Chapter XI and Chapter XXI.

关键词： Residential aged care Emergency department Presenting complaint