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The implication of mass elevation effect of the Tibetan Plateau for altitudinal belts

Journal of Geographical Sciences 2015年第12期25卷 1411-1422页

作者： YAO Yonghui XU Mei ZHANG baiping State Key Laboratory of Resource and Environmental Information System Institute of Geographic Sciences and Natural Resources Research CAS Beijing 100101 China China Institute of Water Resources and Hydropower Research Beijing 100044 China Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing 210023 China

The heating effect （or mass elevation effect, MEE） of the Tibetan Plateau （TP） is intense due to its massive body. Some studies have been undertaken on its role as the heat source in summer and its implications for Asian climate, but little has been known of the im- plications of its MEE for the distribution of mountain altitudinal belts （MABs）. Using air tem- perature data observed and remotely sensed data, MAB/treeline data, and ASTER GDEM data, this paper compares the height of MABs and alpine treelines in the main TP and the surrounding mountains/lowland and explains the difference from the point of view of MEE. The results demonstrate： 1） at same elevation, air temperature and the length of growing season gradually increase from the eastern edge to the interior TP, e.g., at 4500 m （corre- sponding to the mean altitude of the TP）, the monthly mean temperature is 3.58℃ higher （April） to 6.63℃ higher （June） in the interior plateau than in the Sichuan Basin; the 10℃ iso- therm for the warmest month goes upward from the edge to the interior of the plateau, at 4000 m in the Qilian Mts. and the eastern edges of the plateau, and up to 4600-5000 m in Lhasa and Zuogong; the warmth index at an altitude of 4500 m can be up to 15℃-month in the in- terior TP, but much lower at the eastern edges. 2） MABs and treeline follow a similar trend of rising inwards： dark-coniferous forest is 1000-1500 m higher and alpine steppe is about 700-900 m higher in the interior TP than at the eastern edges.

关键词： Tibetan Plateau mass elevation effect mountain altitudinal belt treeline the warmth index the 10℃ isotherm in the warmest month

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Sustainable land-use patterns for arid lands: A case study in the northern slope areas of the Tianshan Mountains

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Journal of Geographical Sciences 2010年第4期20卷 510-524页

作者： LUO Geping FENG Yixing ZHANG baiping CheNG Weiming Xinjiang Institute of Ecology and Geography CAS Urumqi 830011 China Institute of Geographic Sciences and Natural Resources Research CAS Beijing 100101 China Graduate University of Chinese Academy of Sciences Beijing 100049 China

Sustainable land use patterns are ecological and economic prerequisites of regional sustainable development. This is especially true for arid lands, where the environment is wholly fragile thanks to extremely limited precipitation, and where human activities have greatly transformed natural desert system by clearing natural vegetation, expanding oases and even building dams on inland rivers. However, the current studies on land use patterns are still characterized by field investigations and case studies, with almost no solid scientific basis. This paper holds that land types and their combination patterns are the principal basis for designing sustainable land use patterns, and that GIS and RS-based large-scale land type mapping and the study of their spatial combination structures should be coordinated with the demand of social development. The existing environmental problems induced by irrational land use mostly result from their deviation from the natural properties of land types. Taking the northern slope of the Tianshan Mountains （NSTM） as an example and considering land type patterns as the basis of land use patterns, this paper improves the vertical oa- sis-and-mid-mountain two-belts development model and the sustainable mountain land use model for arid lands put forward in recent years; and in terms of oases patterns, it outlines oasis development models, including intensive land use pattern in alluvial-diluvial fans, moderate agricultural development pattern in alluvial plains, and ecological land use pattern in river-end oases.

关键词： northern slope of the Tianshan Mountains land type land-use pattern oases

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North-south vegetation transition in the eastern Qinling-Daba Mountains

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Journal of Geographical Sciences 2021年第3期31卷 350-368页

作者： ZHANG Xinghang ZHANG baiping WANG Jing YU Fuqin ZHAO Chao YAO Yonghui State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchCASBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Ministry of Civil Affairs of the People's Republic of China Beijing 100007China

The Qinling-Daba Mountains are the main body of China’s North-South Transitional *** of the north-south gradual variation of vegetation components is significant for understanding the structural diversity and complexity of this transitional *** this study,based on survey data of plant communities,the eastern Qinling-Daba Mountains is divided into four geographic units:the north flank of eastern Qinling Mts.,south flank of eastern Qinling Mts.,north flank of eastern Daba *** south flank of eastern Daba *** also explore division of regional climate according to areal differentiation of plant-species,community structure and species-richness,*** results show that,(1)at plant-species level,there are mainly northern plants in north flank of eastern Qinling *** evergreen species and fewer northern plants in south flank of eastern Qinling Mts.;there are mainly southern plants in eastern Daba Mts.(2)At community structure level,there are 4 formations(3 northern formations and 1 widespread formation)in north flank of eastern Qinling,6 formations(3 northern formations,1 southern formation,and 2 widespread formations)in south flank of eastern Qinling,4 formations(2 southern formations and 2 widespread formations)in north flank of eastern Daba Mts.,and 3 formations(3 southern formations)in south flank of eastern Daba *** terms of the numbers and properties of formations,there is a mixture of northern and southern formations only in the south flank of eastern Qinling Mts.(3)At species-richness level,the diversity of families,genera and species decreased with increasing latitude,but the mixing of northern plants and the southern plants began to occur in south flank of eastern Qinling *** means that the south flank of the eastern Qinling *** more suitably as the dividing line between China’s warm temperate and subtropical zones.

关键词： China’s north-south transitional zone eastern Qinling-Daba Mountains north-south transect vegetation series climate north-south dividing line

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A study of the contribution of mass elevation effect to the altitudinal distribution of timberline in the Northern hemisphere

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Journal of Geographical Sciences 2014年第2期24卷 226-236页

作者： ZHAO Fang ZHANG baiping PANG Yu YAO Yonghui Institute of Geographic Sciences and Natural Resources Research CAS Beijing 100101 China University of Chinese Academy of Sciences Beijing 100049 China College of Resources Environment and Tourism Anyang Normal University Anyang 455000 Henan China

Alpine timberline, as the ＂ecologica tion of scientists in many fields, especially in transition zone,＂ has long attracted the atten- recent years. Many unitary and dibasic fitting models have been developed to explore the relationship between timberline elevation and latitude or temperature. However, these models are usually on regional scale and could not be applied to other regions; on the other hand, hemispherical-scale and continental-scale models are usually based on about 100 timberline data and are necessarily low in precision. The present article collects 516 data sites of timberline, and takes latitude, continentality and mass elevation effect （MEE） as independent variables and timberline elevation as dependent variable to develop a ternary linear regression meteorological data released by WorldClim and model. Continentality is calculated using the mountain base elevation （as a proxy of mass elevation effect） is extracted on the basis of SRTM 90-meter resolution elevation data. The results show that the coefficient of determination （R2） of the linear model is as high as 0.904, and that the contribution rate of latitude, continentality and MEE to timberline elevation is 45.02% （p=0.000）, 6.04% （p=0.000） and 48.94% （p=0.000）, respectively. This means that MEE is simply the primary factor contributing to the elevation distribution of timberline on the continental and hemispherical scales. The contribution rate of MEE to timberline altitude dif- fers in different regions, e.g., 50.49% （p=0.000） in North America, 48.73% （p=0.000） in the eastern Eurasia, and 43.6% （p=0.000） in the western Eurasia, but it is usually very high.

关键词： Northern hemisphere altitudinal distribution of timberline mass elevation effect mountain base elevation multiple linear regression

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Exchange-coupling interaction, effective anisotropy and magnetic property of nano-magnetic materials

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Progress in Natural Science:Materials International 2007年第2期17卷 131-137页

作者： SUN Yan, GAO Ruwei, HAN baiping, LIU Min, HAN Guangbing and FENG Weicun (School of Physics and Microelectronics, Shandong University, Jinan 250100, China) School of Physics and Microelectronics Shandong University Jinan 250100 China

The theories and models of exchange-coupling interaction between grains in nanocrystalline magnetic materials are introduced here. Their insufficiencies and distinctions from the experimental results are pointed out, and some revisions are made. The effects of the phase component ratio, the grain size and microstructure on the effective anisotropy and magnetic properties in the nanocomposite permanent materials and the improved models are discussed in detail.

关键词： nano-magnetic materials exchange-coupling interaction microstructure effective anisotropy magnetic property.

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线上TBL与传统教学法在口腔修复理论教学中的比较

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中国高等医学教育 2024年第2期 117-118页

作者：王朝阳杨海萍陈晓玲张玲王喆傅柏平浙江大学医学院附属口腔医院浙江大学口腔医学院浙江省口腔疾病临床医学研究中心浙江省口腔生物医学研究重点实验室浙江大学癌症研究院口腔生物材料与器械浙江省工程研究中心浙江杭州310000

目的:研究以团队为基础教学法(team-basedlearning,TBL)的线上教学效果。方法:以浙江大学2015级本科口腔医学生为对照组,2016级本科口腔医学生为试验组,分别采用传统教学和线上TBL进行口腔修复学Ⅱ的理论学习,比较两者的教学效果。结论... 详细信息

目的:研究以团队为基础教学法(team-basedlearning,TBL)的线上教学效果。方法:以浙江大学2015级本科口腔医学生为对照组,2016级本科口腔医学生为试验组,分别采用传统教学和线上TBL进行口腔修复学Ⅱ的理论学习,比较两者的教学效果。结论:对照组和试验组学生期末成绩没有显著性差异(P=0.73),但试验组形成性评价调查问卷显示学生学习的积极性和满意度极高。结论:线上TBL教学对于提高学生综合素质效果显著。

关键词：线上TBL 传统教学口腔修复学

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Lycium barbarum polysaccharide ameliorates radiation-induced brain injury by regulating gut microbiota

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Journal of Traditional Chinese Medical Sciences 2023年第1期10卷 42-51页

作者： Jinglu Hu Chunqing Wang Qi Li Wencheng Jiao Xiaojuan Chen baiping Ma Lina Du Pharmaceutical College of henan University Henan UniversityKaifeng 475004China Department of Pharmaceutical Sciences Beijing Institute of Radiation MedicineBeijing 100850China School of Pharmacy Shandong University of Traditional Chinese MedicineJinan 250355China Institute of Life Sciences and Green Development Hebei UniversityBaoding 071002China

Objective: To determine the extent to which Lycium barbarum polysaccharide(LBP) improves60Co γ-ray radiation-induced brain injury(RIBI) by regulating the gut ***: The RIBI model of mice was established with the appropriate dose of60Co γ-ray to identify the changes in the body weight, behaviors, gut microbiota, and inflammatory reactions of mice. Mice were randomly divided into healthy, RIBI model, and LBP groups. The related inflammatory cytokines were determined using an enzyme linked immunosorbent assay kit. Then, 16S rRNA sequencings of feces were carried out to evaluate the differences in intestinal ***: Compared with the spontaneous activity and exploratory spirit of the healthy group, those traits in the RIBI model mice in the open field significantly decreased, the freezing time in the elevated plus maze(EPM) significantly increased, and the number of times the mice discriminated the novel object was significantly lower. hematoxylin-eosin slides showed that the main histopathological changes of RIBI occurred in the hippocampus. In addition, the diversity and relative abundances ratio of the gut bacterial phylum, order, family, and genus in the model group varied widely. Changes in Bacteroidetes,Firmicutes, and Proteobacteria were the most obvious after head radiation exposure. In comparison, LBP could accelerate the recovery of weight loss in RIBI mice. The frequency that mice entered the center of the open field, facing the open arm in the EPM, and the number of times they discriminated the novel object were significantly increased with LBP administration. LBP could also reduce the levels of inflammatory factor caused by RIBI. LBP increased the diversity and abundance of gut microbiota in RIBI model mice. In addition, LBP increased the relative abundance of Bacteroidetes but decreased the levels of Firmicutes and Proteobacteria for irradiated ***: LBP can improve depression and tension by regulating the composition of gut

关键词： Lycium barbarum polysaccharide Gut microbiota Diversity Radiation Brain injury Behavior Cognition Inflammatory

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以浙大钉为载体的口腔医学专业学位硕士研究生英文写作能力提升探索

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中国高等医学教育 2024年第2期 143-144页

作者：金鑫阳施智微刘威许月丹胡军傅柏平张玲浙江大学医学院附属第四医院浙江义乌322000 浙江大学医学院附属口腔医院浙江杭州310006

在疫情常态化防控下,针对口腔医学专业学位硕士研究生英文写作能力不足问题,通过浙大钉平台,让教师与学生以一对多的小班化线上培训并结合课后视频回放复习的模式开展教学。在教学实践中,提倡写作前教师指导学生制定中文提纲,并引导学... 详细信息

在疫情常态化防控下,针对口腔医学专业学位硕士研究生英文写作能力不足问题,通过浙大钉平台,让教师与学生以一对多的小班化线上培训并结合课后视频回放复习的模式开展教学。在教学实践中,提倡写作前教师指导学生制定中文提纲,并引导学生逐步分解学习英文科研论文书写过程,以提高学生英文写作能力,提升其科研素养。

关键词：浙大钉口腔医学专业学位硕士研究生英文写作能力

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Preventive effect of nasal Timosaponin BII-loaded temperature-/ionsensitive in situ hydrogels on Alzheimer’s disease

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Journal of Traditional Chinese Medical Sciences 2021年第1期8卷 59-64页

作者： Ge Ou Wenyuan Chen Meiyan Yang Qian Li Yuanyuan Zhang Delian Wan Lina Du baiping Ma Department of Pharmaceutical Sciences Beijing Institute of Radiation MedicineBeijing 100850China Pharmacy Department Chinese PLA General HospitalBeijing 100853China School of Pharmaceutical Sciences Shandong University of Traditional Chinese MedicineJinan 250355China Department of Pharmaceutics Beijing Institute of Pharmacology and ToxicologyBeijing 100850China

Objective:To study the preventive effect of Timosaponin BII(T-BII)-loaded temperature/ion-sensitive nasal in situ hydrogels(ISGs)on Alzheimer's disease(AD),its preparation technology,characteristics and in vivo effects were ***:The morphological and rheological properties were *** preventive effects of T-BII ISG on scopolamine-induced AD in mice were determined with the index of muscarinicreceptor 1(M1)expression and pathological ***:Results revealed that T-BII ISG significantly increased the content of M1 choline receptors in the hippocampus of mice and ameliorated the damage incurred to the hippocampal cornu ammonis 1(CA1)***:T-BII ISGs is a reasonable and convenient method of exerting an obvious preventive effect on mice with AD induced by ***,thereby,lays forth a new treatment option for preventing AD.

关键词： Timosaponin BII Alzheimer’s disease In situ hydrogels Intranasal administration

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机遇与挑战:西部地区开展避灾移民的SWOT态势分析——以陕南为例

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灾害学 2014年第2期29卷 95-101页

作者：何得桂廖白平西北农林科技大学陕西杨凌712100 农村改革发展协同创新中心湖北武汉430079 中共安康市委党校陕西安康725000

推进西部地区避灾移民活动是我国农村改革发展领域的一项重要课题。它符合灾害移民搬迁与时俱进的内在要求,符合国家城乡发展政策的导向,但是当前的避灾移民在制度安排、基层实践和体制机制等方面还存在诸多问题。制定西部地区避灾移民... 详细信息

推进西部地区避灾移民活动是我国农村改革发展领域的一项重要课题。它符合灾害移民搬迁与时俱进的内在要求,符合国家城乡发展政策的导向,但是当前的避灾移民在制度安排、基层实践和体制机制等方面还存在诸多问题。制定西部地区避灾移民未来的发展规划时,可运用SWOT动态分析法来综合分析它的优势、劣势、机遇和挑战。通过SWOT矩阵的建构,深化避灾移民活动可以采取S-O(增长型)、W-O(弥补型)、S-T(拓展型)以及W-T(防御型)等发展策略。

关键词：避灾移民 SWOT分析政策执行发展策略城镇化生态文明

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