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Coupling Coordination Analysis of Cropland Intensification and Agroecosystem Services:Evidence from Loess Plateau in shaanxi Province,China

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Chinese Geographical Science 2024年第3期34卷 401-419页

作者： FU Shaowu FU Mengyu QIU Menglong Center for Land Resource Research in Northwest China Shaanxi Normal UniversityXi’an 710119China

One of the greatest challenges in the agroecosystem is to improve cropland intensification while preserving agroecosystem *** many studies have investigated the effect of cropland intensification on agroecosystem service,the interactive coupling and coordination among these factors remain largely *** view of this,this study performed a case study of the Loess Plateau in shaanxi Province,China and constructed comprehensive evaluation models to quantify the cropland intensification and agroecosystem service in this *** analysis and the coupling coordination degree model were used to evaluate the interactive relationship between cropland intensification and agroecosystem service,and statistical analysis and spatial autocorrelation were used to analyze the spatial characteristics and potential mechanism of the coupling *** show that both the cropland intensification and agroecosystem service in the study area were relatively low yet gradually increased from 2000 to *** service lag was identified as the dominant unbalanced development *** the supply capacity of agroecosystem services plays a key role in the balanced development of cropland in the Loess *** coupling coordination degree between cropland intensification and agroecosystem service ranges from basic coordination to serious ***,cropland intensification practices in the area should be optimized to enhance this coordination *** upward trend was also observed in the coupling coordination degree from2000 to *** withdrawal of marginal cropland in the Grain for Green program is one of the most important reasons for this trend,especially for the northern *** 83.6%of the high-high clusters are concentrated in the southern region of the Loess Plateau,whereas 70.5%of the low-low clusters are distributed in the northern *** clustering characteristics are mainly attributed to the environmental

关键词： cropland intensification agroecosystem services balance analysis coupling coordination degree Loess Plateau,China

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Industrial Carbon Reduction Potential Measurement and Scenario Prediction in shaanxi Province

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Journal of Resources and Ecology 2024年第4期15卷 860-869页

作者： WANG Wenjun YING Xinru KOU Chenlu School of International Business Shaanxi Normal UniversityXi’an 710119China

Promoting industrial carbon reduction is an inevitable step for achieving the Chinese carbon peak and neutrality *** on the industrial energy consumption data of shaanxi Province from 2011 to 2020,this study uses the IPCC calculation method to calculate the industrial carbon emissions in shaanxi *** prediction model for industrial carbon emissions in shaanxi Province was constructed based on the STIRPAT model from three aspects:population,economy,and *** setting three scenario models,the industrial carbon emissions from 2021 to 2035 and the time to achieve peak carbon neutrality were then *** results show that the industry in shaanxi Province cannot achieve a carbon peak under the baseline scenario,although it can achieve carbon peaking in 2030 under a low-carbon scenario or in 2025 under an enhanced low-carbon *** predicted carbon peak values are 209.11 million t and 188.36 million t,*** on the results of this study,four policy recommendations are proposed:(1)strengthen publicity and education efforts to increase public participation in energy conservation and emission reduction;(2)promote the green transformation of industry and develop a green economy,including the active development of energy-saving and emission reduction technologies;(3)accelerate the implementation of industrial carbon reduction;and(4)promote the development and utilization of clean energy and increase efforts to adjust the energy structure.

关键词： industrial carbon reduction potential measurement STIRPAT model scenario prediction

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Analysis of the Feedback on Teacher Training in an Affiliated Hospital in shaanxi Province

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Journal of Contemporary Educational Research 2024年第8期8卷 161-167页

作者： Yu Feng Yuanyuan Jia Yu Cai Chang Tian Siqi Wang Faculty Development and Teaching Evaluation Office The First Affiliated Hospital of Xi’an Medical UniversityXi’an 710000Shaanxi ProvinceChina

Objective:This article aims to deeply analyze the feedback on teacher training in an affiliated hospital,so as to clarify the current needs and situation of teacher training and provide a scientific basis for further optimizing the teacher training ***:The current situation and needs of teacher training in the affiliated hospital were collected by designing and distributing Tomato Form questionnaires on the DingTalk *** questionnaire adopted a percent-point system,all of which were indeterminate multiple-choice ***:The average age of the clinical teachers participating in the survey was 40.44±7.85 years old,with an average teaching length of 4–10 *** results showed that 60.20%of teachers think that the amount of teacher training in an affiliated hospital is sufficient;91.10%of teachers think that the factors affecting training conflict with working hours;97.96%of teachers believe that the training time has an impact on the training effect;81.63%of teachers prefer online training;51.53%of teachers tend to arrange training time on working days;33.16%of teachers tend to train once a month;17.78%of teachers prefer to receive training on clinical theoretical courses and practical teaching norms and skills ***:Based on the above survey results,we propose to build a comprehensive management mechanism for teacher training,including improving the access,training,and assessment mechanism for clinical teachers,and adjusting and optimizing the training program according to actual *** the same time,an effective communication platform should be built to promote the deep integration of teaching and practice and enhance social recognition,so as to comprehensively improve the teaching quality and medical service of the hospital.

关键词： Teacher training Teaching quality Clinical practice

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Analysis of the Current Situation of Drug Clinical Trial Institutions in shaanxi Province

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Journal of Clinical and Nursing Research 2024年第1期8卷 78-87页

作者： Yurong Zhang Qi Zhang Li Wang Rui Xu Lili Zhao Enze Li Xin Wang Department of Clinical Trial Institution the First Affiliated Hospital of Xi’an Medical CollegeXi’an 710077Shaanxi ProvinceChina Department of Drug and Vaccine Inspection Shaanxi Medical Products AdministrationXi’an 710065Shaanxi ProvinceChina Department of Clinical Coordination Xi’an Evidence-Based Medicine Co.LtdXi’an 710000Shaanxi ProvinceChina

To understand the current situation of institutional registration in shaanxi Province after the implementation ofregistration system management in drug clinical trial *** information was collected on the“Announcement on the Accreditation of Drug Clinical Trial Institutions”issued by the National Medical Products Administration from 2005 to August 2022,the record management information system of drug and medical device clinical trial institutions,and the drug clinical trial registration and information publicity platform.A retrospective analysis was carried out in terms of institutional development,regional distribution,registered majors,principal investigators,and the number of drug clinical *** the implementation of institution registration,the number of drug clinical trial institutions in shaanxi Province increased by 47.4%,884 principal investigators were registered,the number of registered majors expanded from 58 qualified to 117,and the professional scope increased by 50.4%.The policy of institution registration is conducive to promoting the rational use of medical resources and the development of drug clinical trial institutions and improving the healthy development of the pharmaceutical industry in shaanxi Province.

关键词： Drug clinical trial Institution registration Registered majors Current situation analysis Professional group shaanxi Province

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Study　on　determination　of　average　stress tensorin　shaanxi　region by　using　small　earthquake　data

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Acta Seismologica Sinica(English Edition) 1994年第3期7卷 495-499页

作者：杜兴信张春生 Seismological Bureau of shaanxi Province Xi’an China

ＳｔｕｄｙｏｎｄｅｔｅｒｍｉｎａｔｉｏｎｏｆａｖｅｒａｇｅｓｔｒｅｓｓｔｅｎｓｏｒｉｎＳｈａａｎｘｉｒｅｇｉｏｎｂｙｕｓｉｎｇｓｍａｌｌｅａｒｔｈｑｕａｋｅｄａｔａＸｉｎｇ－ＸｉｎＤＵ（杜兴信）；ａｎｄＣｈｕｎ－Ｓｈ... 详细信息

ＳｔｕｄｙｏｎｄｅｔｅｒｍｉｎａｔｉｏｎｏｆａｖｅｒａｇｅｓｔｒｅｓｓｔｅｎｓｏｒｉｎＳｈａａｎｘｉｒｅｇｉｏｎｂｙｕｓｉｎｇｓｍａｌｌｅａｒｔｈｑｕａｋｅｄａｔａＸｉｎｇ－ＸｉｎＤＵ（杜兴信）；ａｎｄＣｈｕｎ－ＳｈｅｎｇＺＨＡＮＧ（张春生）（Ｓｅｉ...

关键词： Principal Stress Fault Plane Focal Mechanism ACTA SEISMOLOGICA SINICA Small Earthquake

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A Discussion on the Two-stage Mineralization of the Baguamiao-Shuangwang Gold Orefield, shaanxi Province, China

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Acta Geologica Sinica(English Edition) 2004年第2期78卷 476-480页

作者： WANGHaishan LIUXun shaanxiAoweiScienceandTechnologyMineralsCompanyLimited Xi＇anShaanxi710001 NorthwestNonferrousGeologicalInstitute 25XiyingRd.Xi＇anShaanxi710054

The gold orefield studied is located on the south border of the underthrust-collision zone of the Qinling microplate and the North China microplate in the Indosinian epoch. The main ore deposits localized in the area where the WNW-trending compression-shear type fault of the Indosinian epoch intersected the NE-trending tenso-shear type fault of the Yanshanian epoch. The orebody appeared in a chambered or wedged form. The mineral composition is relatively complex. On the southeastern border of the orefield there have developed intermediate-acid anatectic magmatites of the Mesozoic Era. Three-phase inclusions (Lco2, Vco2 and LNaCl-H2O) comprise over 50%, associated with vapor phase consisting of H2O, CO2, CO, CH4, N2 and H2. The ore-forming fluids can be divided into 2 stages (the early and the late). The samples are projected in the area of mixture of initial magmatic and meteoric water on the δD-δ18O diagram, suggesting two types of mineralization, i.e. the re-equilibrated magmatic-hydrothermal type and the circulating geothermal water type of a meteoric water source. The mineralization occurring in this orefield might be a superimposition of 2 tectono-magmatic activities (the Indosinian and Yanshanian movements). Therefore, it is considered a superimposed B-S type gold orefield.

关键词： re-equilibrated magmatic-hydrothermal circulation of geothermal water intersection area of faults superimposed mineralization

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Geochemistry of Rare Earth Elements in Hydrothermal Ore Deposit in Heishan Area,shaanxi Province

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Journal of Rare Earths 1999年第1期17卷 54-58页

作者：庞奖励 Department of Geography Shaanxi Normal University Xi'an 710062 China

The study on rare earth elements in hydrothermal ore deposit in Heishan area indicates that the REE concentration in rock with very weak negative Ce and Eu anomaly is far higher than those in ore. The REE pattern in ore is characterized by very low REE concentration, typical enrichment in LRE and distinctive negative Eu and Ce anomaly. δ Eu and δ Ce values vary from 0 51～0 6 to 0 71～0 77 and 0 84～0 88 to 0 60～0 78, respectively, as shown in samples from Fe Cu ore to Au ore. Different δ Eu and δ Ce values reveal that temperature gradually decreases and oxygen fugacity gradually increases when ore bearing hydrothermal solution evolves from early to late stage. It is likely that REE in solution is mainly transported in the forms of(RE(CO 3) 3F) 4- , (RE(CO 3)F 2) -, (RE(F,Cl) 2) + , (RE(CO 3) 3) 3- and (RE(CO 3) 4) 5- complexes.

关键词： Rare earths Hydrothermal ore deposit Geochemistry

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Geochemical Behavior of Rare Earth Elements in Jianchaling Ore Depositin shaanxi Province

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Journal of Rare Earths 1999年第3期17卷 218-223页

作者：庞奖励 Department of Geography Shaanxi Normal University Xi'an 710062 China

Studies on rocks and ores of Jianchaling ore deposit, southern shaanxi, show that REE patterns in the ores clearly differ from that in ultrabasic and acidic rocks. The REE pattern in Ni ore is similar to that in Au ore and is characterized by typical enrichment in LREE and sharp negative Eu and Ce anomalies, indicating that Ni ore and Au ore were formed from the same hydrothermal solution. δ Eu and δ Ce variations reflect that Ni ore is formed at higher temperature and relative reduction environment, and Au ore at lower temperature and relative oxidation environment. The characteristics imply that the ore forming materials were derived from the ultrabasic rock and the hydrothermal solution is a post magmatic acidic solution.

关键词： Rare earths Jianchaling ore deposit Geochemistry shaanxi province

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Using citizen science data to improve regional bird species list:A case study in shaanxi,China

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Avian Research 2022年第3期13卷 341-346页

作者： Ying Ding Lichuan Xiong Fandi Ji Junhui Lu Xiaojia Zhu Huateng Huang College of Life Sciences Shaanxi Normal UniversityXi'an710119China

An accurate and updated regional bird species checklist is the foundation for biodiversity research and ***,with ongoing climate and landscape changes,tracking the distributions of bird species is challenging,and expert-curated species lists are often limited regarding survey area and *** in China is becoming increasingly popular,and observations recorded by citizen birders are quickly increasing as *** the value of these data for improving regional species lists and studying bird distribution needs a detailed and quantitative comparison of citizen science data and expert-curated *** collected observation reports from the China Bird Report Center,the largest online open platform for sharing bird sightings in *** focused on reports from 2016 to 2019 in shaanxi *** expert-curated species lists,we used three sources:the latest bird field guide published by local ornithologists,the province list from Avibase,and a list generated from overlaying distribution range from BirdLife International with the outline of shaanxi *** addition,we also compared the bird sighting coordinates with the species distribution maps from BirdLife ***,species checklists from different sources have considerable discrepancies,even among lists based on expert *** birdwatching data,there are 616 bird species in total,but less than half of the species(294)appear in all checklists,and 17.2%of species are unique to one *** hundred sixty-three species lack birdwatching records,but birdwatching identified 39 species new to the *** hundred thirty-six bird species have sighting locations outside the distribution ranges from BirdLife International,suggesting that updates might be *** data also showed a clear trend of bird species shifting to higher latitudes than their traditional *** being inadequate for generating a regional species checklist on its own,b

关键词： Bird distribution Birdwatching Citizen science Expert knowledge Species checklist

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Response of vegetation restoration to climate change and human activities in shaanxi-Gansu- Ningxia Region

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Journal of Geographical Sciences 2013年第1期23卷 98-112页

作者： LI Shuangshuang YAN dunping LIU Xinyan WAN Jia College of Tourism and Environment Science Shaanxi Normal University Xi'an 710062 China

The ＂Grain for Green Project＂ initiated by the governments since 1999 were the dominant contributors to the vegetation restoration in the agro-pastoral transitional zone of northern China. Climate change and human activities are responsible for the improvement and degradation to a certain degree. In order to monitor the vegetation variations and clarify the causes of rehabilitation in the shaanxi-Gansu-Ningxia Region, this paper, based on the MODIS-NDVI and climate data during the period of 2000-2009, analyzes the main charac- teristics, spatial-temporal distribution and reasons of vegetation restoration, using methods of linear regression, the Hurst Exponent, standard deviation and other methods. Results are shown as follows. （1） From 2000 to 2009, the NDVI of the study area was improved progres- sively, with a linear tendency being 0.032/10a, faster than the growth of the Three-North Shelter Forest Program （0.007/10a） from 1982 to 2006. （2） The vegetation restoration is characterized by two fast-growing periods, with an ＂S-shaped＂ increasing curve. （3） The largest proportion of the contribution to vegetation restoration was observed in the slightly improved area, followed by the moderate and the significantly improved area; the degraded area is distributed sporadically over southern part of Ningxia Hui Autonomous Region as well as eastern Dingbian of shaanxi province, Huanxian and Zhengyuan of Gansu province. （4） Climate change and human activities are two driving forces in vegetation restoration; more- over anthropogenic factors such as ＂Grain for Green Project＂ were the main causes leading to an increasing trend of NDVI on local scale. However, its influencing mechanism remains to be further investigated. （5） The Hurst Exponent of NDVI time series shows that the vegetation restoration was sustainable. It is expected that improvement in vegetation cover will expand to the most parts of the region.

关键词： the vegetation cover "Grain for Green Project" spatial-temporal vegetation patterns climate change shaanxi- Gansu-Ningxia Region

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