Significant lake expansion has accelerated permafrost degradation on the Qinghai-Tibet Plateau

In recent years, lakes on the Qinghai-Tibet Plateau have become more responsive to climate change. In September 2011, Zonag Lake in Hoh Xil experienced sudden drainage, the water eventually flowed into Yanhu Lake, which caused Yanhu Lake to continue to expand. The potential collapse of Yanhu Lake could directly threaten the operational safety of the adjacent Qinghai-Tibet Highway, Qinghai-Tibet Railway. To explore the implications of expanding lakes on the surrounding permafrost, we selected Hoh Xil Yanhu Lake on the Qinghai-Tibet Plateau to study the effect of lake expansion on permafrost degradation. The permafrost degradation in the Yanhu Lake basin from October 2017 to December 2022 was inverted using Sentinel-1 satellite image data and small baseline subset interferometry synthetic aperture radar(SBAS-In SAR) technology. Additionally, permafrost degradation from February 2007 and February 2010 was analyzed using advanced land observing satellite phased array-type L-band synthetic aperture radar(ALOS PALSAR) satellite images and differential interferometric synthetic aperture radar(D-In SAR) technique. The results showed that the permafrost around Yanhu Lake experienced accelerated degradation. Prior to the expansion of Yanhu Lake, the average annual deformation rate along the line of sight(LOS) direction was 6.7 mm/yr. After the expansion, the rate increased to 20.9 mm/yr. The integration of spatial-temporal distribution maps of surface subsidence, Wudaoliang borehole geothermal data, meteorological data, Yanhu Lake surface area changes, and water level changes supports the assertion that the intensified permafrost degradation could be attributed to lake expansion rather than the rising air temperature. Furthermore, permafrost degradation around Yanhu Lake could impact vital infrastructure such as the adjacent Qinghai-Tibet Highway and Qinghai-Tibet Railway.

Cryptic diversity and rampant hybridization in annual gentians on the Qinghai-Tibet Plateau revealed by population genomic analysis

Understanding the evolutionary and ecological processes involved in population differentiation and speciation provides critical insights into biodiversity formation. In this study, we employed 29,865 single nucleotide polymorphisms(SNPs) and complete plastomes to examine genomic divergence and hybridization in Gentiana aristata, which is endemic to the Qinghai-Tibet Plateau(QTP) region. Genetic clustering revealed that G. aristata is characterized by geographic genetic structures with five clusters(West, East, Central, South and North). The West cluster has a specific morphological character(i.e., blue corolla) and higher values of FSTcompared to the remaining clusters, likely the result of the geological barrier formed by the Yangtze River. The West cluster diverged from the other clusters in the Early Pliocene;these remaining clusters diverged from one another in the Early Quaternary. Phylogenetic reconstructions based on SNPs and plastid data revealed substantial cyto-nuclear conflicts. Genetic clustering and D-statistics demonstrated rampant hybridization between the Central and North clusters,along the Bayankala Mountains, which form the geological barrier between the Central and North clusters. Species distribution modeling demonstrated the range of G. aristata expanded since the Last Interglacial period. Our findings provide genetic and morphological evidence of cryptic diversity in G. aristata, and identified rampant hybridization between genetic clusters along a geological barrier.These findings suggest that geological barriers and climatic fluctuations have an important role in triggering diversification as well as hybridization, indicating that cryptic diversity and hybridization are essential factors in biodiversity formation within the QTP region.

Unveiling evapotranspiration patterns and energy balance in a subalpine forest of the Qinghai-Tibet Plateau:observations and analysis from an eddy covariance system

Evapotranspiration is an important parameter used to characterize the water cycle of ecosystems.To under-stand the properties of the evapotranspiration and energy balance of a subalpine forest in the southeastern Qinghai-Tibet Plateau,an open-path eddy covariance system was set up to monitor the forest from November 2020 to October 2021 in a core area of the Three Parallel Rivers in the Qing-hai-Tibet Plateau.The results show that the evapotranspira-tion peaked daily,the maximum occurring between 11:00 and 15:00.Environmental factors had significant effects on evapotranspiration,among them,net radiation the greatest(R^(2)=0.487),and relative humidity the least(R^(2)=0.001).The energy flux varied considerably in different seasons and sensible heat flux accounted for the main part of turbulent energy.The energy balance ratio in the dormant season was less than that in the growing season,and there is an energy imbalance at the site on an annual time scale.

Bacterial communities and enzyme activities during litter decomposition of Elymus nutans leaf on the Qinghai-Tibet Plateau

The dominant plant litter plays a crucial role in carbon(C)and nutrients cycling as well as ecosystem functions maintenance on the Qinghai-Tibet Plateau(QTP).The impact of litter decomposition of dominant plants on edaphic parameters and grassland productivity has been extensively studied,while its decomposition processes and relevant mechanisms in this area remain poorly understood.We conducted a three-year litter decomposition experiment in the Gansu Gannan Grassland Ecosystem National Observation and Research Station,an alpine meadow ecosystem on the QTP,to investigate changes in litter enzyme activities and bacterial and fungal communities,and clarify how these critical factors regulated the decomposition of dominant plant Elymus nutans(E.nutans)litter.The results showed that cellulose and hemicellulose,which accounted for 95%of the initial lignocellulose content,were the main components in E.nutans litter decomposition.The litter enzyme activities ofβ-1,4-glucosidase(BG),β-1,4-xylosidase(BX),andβ-D-cellobiosidase(CBH)decreased with decomposition while acid phosphatase,leucine aminopeptidase,and phenol oxidase increased with decomposition.We found that both litter bacterial and fungal communities changed significantly with decomposition.Furthermore,bacterial communities shifted from copiotrophic-dominated to oligotrophic-dominated in the late stage of litter decomposition.Partial least squares path model revealed that the decomposition of E.nutans litter was mainly driven by bacterial communities and their secreted enzymes.Bacteroidota and Proteobacteria were important producers of enzymes BG,BX,and CBH,and their relative abundances were tightly positively related to the content of cellulose and hemicellulose,indicating that Bacteroidota and Proteobacteria are the main bacterial taxa of the decomposition of E.nutans litter.In conclusion,this study demonstrates that bacterial communities are the main driving forces behind the decomposition of E.nutans litter,highlighting the vital roles of bacterial communities in affecting the ecosystem functions of the QTP by regulating dominant plant litter decomposition.

A phylogenetic approach identifies patterns of beta diversity and floristic subregions of the Qinghai-Tibet Plateau

Patterns of taxonomic and phylogenetic beta diversity and their relationships with environmental correlates can help reveal the origin and evolutionary history of regional biota.The Qinghai-Tibet Plateau(QTP)harbors an exceptionally diverse flora,however,a phylogenetic perspective has rarely been used to investigate its beta diversity and floristic regions.In this study,we used a phylogenetic approach to identify patterns of beta diversity and quantitatively delimit floristic regions on the Qinghai-Tibet Plateau.We also examined the relationships between multifaceted beta diversity,geographical distance,and climatic difference,and evaluated the relative importance of various factors(i.e.,climate,topography and history)in shaping patterns of beta diversity.Sørensen dissimilarity indices indicated that patterns of species turnover among sites dominated the QTP.We also found that patterns of both taxonomic and phylogenetic beta diversity were significantly related to geographical distance and climatic difference.The environmental factors that contributed most to these patterns of beta diversity include annual precipitation,mean annual temperature,climatic gradients and climatic instability.Hierarchical dendrograms of dissimilarity and non-metric multidimensional scaling ordination based on phylogenetic beta diversity data identified ten floristic subregions in the QTP.Our results suggest that the contemporary environment and historical climate changes have filtered species composition among sites and eventually determined beta diversity patterns of plants in the QTP.

Biological soil crusts and their potential applications in the sand land over Qinghai-Tibet Plateau

The Qinghai-Tibet Plateau is now experiencing ecological degradation risks as a result of climate change and human activities.The alpine grassland ecology in permafrost zones is fragile and susceptible to deterioration due to its high altitude,low temperature,and limited oxygen,which complicates the repair of damaged land.Biological soil crusts(BSCs)are crucial for land restoration in plateau regions because they can thrive in harsh conditions and have environmentally beneficial traits.Inoculated biological soil crust(IBSC)has shown success in low-altitude desert regions,but may not be easily duplicated to the plateau environment.Therefore,it is essential to do a comprehensive and multifaceted analysis of the basic theoretical comprehension and practical application of BSCs on the Tibetan Plateau.This review article aims to provide a brief summary of the ecological significance and the mechanisms related to the creation,growth,and progression of BSCs.It discusses the techniques used for cultivating BSCs in laboratories and using them in the field,focusing on the Qinghai-Tibet Plateau circumstance.We thoroughly discussed the potential and the required paths for further studies.This study may be used as a basis for selecting suitable microbial strains and accompanying supplemental actions for implementing IBSCs in the Qinghai-Tibet Plateau.

Identification and distribution of 13003 landslides in the northwest margin of Qinghai-Tibet Plateau based on human-computer interaction remote sensing interpretation

The periphery of the Qinghai-Tibet Plateau is renowned for its susceptibility to landslides.However,the northwestern margin of this region,characterised by limited human activities and challenging transportation,remains insufficiently explored concerning landslide occurrence and dispersion.With the planning and construction of the Xinjiang-Tibet Railway,a comprehensive investigation into disastrous landslides in this area is essential for effective disaster preparedness and mitigation strategies.By using the human-computer interaction interpretation approach,the authors established a landslide database encompassing 13003 landslides,collectively spanning an area of 3351.24 km^(2)(36°N-40°N,73°E-78°E).The database incorporates diverse topographical and environmental parameters,including regional elevation,slope angle,slope aspect,distance to faults,distance to roads,distance to rivers,annual precipitation,and stratum.The statistical characteristics of number and area of landslides,landslide number density(LND),and landslide area percentage(LAP)are analyzed.The authors found that a predominant concentration of landslide origins within high slope angle regions,with the highest incidence observed in intervals characterised by average slopes of 20°to 30°,maximum slope angle above 80°,along with orientations towards the north(N),northeast(NE),and southwest(SW).Additionally,elevations above 4.5 km,distance to rivers below 1 km,rainfall between 20-30 mm and 30-40 mm emerge as particularly susceptible to landslide development.The study area’s geological composition primarily comprises Mesozoic and Upper Paleozoic outcrops.Both fault and human engineering activities have different degrees of influence on landslide development.Furthermore,the significance of the landslide database,the relationship between landslide distribution and environmental factors,and the geometric and morphological characteristics of landslides are discussed.The landslide H/L ratios in the study area are mainly concentrated between 0.4 and 0.64.It means the landslides mobility in the region is relatively low,and the authors speculate that landslides in this region more possibly triggered by earthquakes or located in meizoseismal area.

The Conflict between Individuals and Society in Seize the Day

This paper explores the existential problem in Seize the Day-the conflict between individuals and society in modern society.With a brief introduction of Saul Bellow and the novel,the paper emphasizes the analysis of the conflict and the sources of the conflict.Besides,Saul Bellow uses many rhetorical devices to intensify the conflict.The analysis of these rhetorical devices is beneficial for us to interpret and understand the true meaning of the novel.Through the study of Bellow’s vision and the novel’s metaphorical meaning,we may find an effective solution to the conflict that our human being is involved in,and realize the social values of this novel.

“社会”与Society的中英语义差别对比分析

翻译过程中,中英文同一组词的语义不对等问题引起语义学者兴趣,而高频互译的“社会”与society这组词在译者与读者视角下语义对等性极强,由此语义差别研究较少且研究空间较大。该文研究该组词的字典释义,对比探究两者的语义不对等性,归纳语义差别背后原因。研究发现,“社会”和society存在语义不对等;“社会”一词包含“社交”和“公共”两大含义,而society一词对应其中“社交”之意,表现出一定的不对等性。

Discussion on“School is Society”and Its Enlightenment to the Construction of University Environment

The principle of“school is society”indicates that controlling the environment is the only educational method.By transforming the school into a microcosm of society,we can cultivate individuals who possess a social spirit and adaptability,preparing them to thrive in real-world social situations.By analyzing the social performance of colleges and universities in terms of their training objectives for society,research concepts for the development of society,and service consciousness for the improvement of society,as well as the current demand for a proper connection with society,it can be found that taking“school is society”as the guiding ideology for the construction of the university environment tends to be simplified,purified,balanced,broadened,and provided with practical space.This will be beneficial to the development of higher education.

Combinations of Transportation Policies to Promote BRT Usage Using Artificial Society Model

Various transportation systems have been developed in recent years.In this study,an artificial society model is developed to examine the combination of transportation policies in urban areas.In this model,each trip maker selects the primary and terminal transportation modes.An artificial society model is applied to the southeastern region of Osaka City,Japan.The effects of introducing BRT(bus rapid transit,primary transportation)and on-demand buses(terminal transportation)are investigated.The results confirm that BRT is used by a certain number of users.An increase in the use of BRT will increase the amount of walking,thus resulting in a healthy city.However,on-demand buses are rarely used as terminal transportation.Additionally,the development of bicycle parking stations near BRT stops is shown to be effective in the northern section of the BRT route.

Hungry and Angry Society: Implications for Sustainable Development in Nigeria

Hunger is a physiological need,but the production and consumption of adequate and balanced food is a function of social forces.At every point,social,political,and economic processes intervene,for better or(more common)for worse.Food is one fundamental need of human beings for survival.But in Nigeria there is widespread food shortage and hunger.Development scholars have put forward reasons why poverty,hunger persists in the country,from the platitudes about population growth,inadequate implementation of agricultural policies,and neglect of agriculture,bad leadership,corruption,and the issue of distribution.Nigeria is richly blessed with arable land and citizens eager to unlock its food potentials.Unfortunately,this is far from being realized as the country depends on foreign countries for food,a situation that is tragic and sad.She spends about$10 billion a year importing food and agricultural products,the majority of which are wheat,rice,poultry,fish,and consumer-oriented foods.The pressure on the exchange rate results in devaluation-triggered inflation and food costs that fly up beyond the grasp of people at the bottom of the ladder as it is now is one of the negative repercussions of high food importation bills.Examining the effects of hunger is one of this paper’s key concerns and goals,and anger crisis for achieving sustainable development in the country using the Frustration-Aggression Theory,The Relative Deprivation and Political Economy Approach as guide.

Countermeasures for Qinghai-Tibet Plateau to Cope with Climate Change and Ecological Environment Safety

The monitoring,prediction and assessment of status about climate changes and ecological environment at home and abroad were discussed in this study,and the scientific significance and countermeasures for Qinghai-Tibet Plateau to cope with these problems were also put forward.

Society 5.0时代日本教育信息化的变革与借鉴

面向Society 5.0时代日本教育信息化的变革深刻反映了时代发展诉求,变革内容包括信息素养培养、编程教育、学校信息化建设、学科学习活动中的信息技术运用等。此次日本教育信息化变革的特点表现为:重视面向Society 5.0时代的信息素养教育;着力推进个性化学习和提升学生的综合素质;迭代升级面向Society 5.0时代的中小学校园信息化环境;并且整个教育信息化建设重视顶层设计和试点研究;重视多部门合作与官民协同。我国教育信息化建设应借鉴日本变革的经验,着重培养面向Society 5.0时代中小学生的必要技能,以形成有别于传统智力观的“人类智能”为指向,从宏观和微观两个层面规划具体的实施路径,同时明确政府职能部门的角色担当,强化协调与督导职能。

“民间”、“民间社会”和CIVIL SOCIETY———CIVIL SOCIETY概念再检讨

试图从一种解释的立场重新考虑中国的“civilsociety”问题 ,据此 ,中国“civilsociety”之出现或者重现将被置于一个有着悠久传统的本土背景之下 ,并被从社会行动者主观的方面来理解。然而 ,这种研究立场的转变并不意味着简单地拒绝考虑和使用“civilsociety”概念 ,毋宁说 ,它要求以更恰当更有效的方式来运用这一概念。学者们已经注意并且区分了“civilsociety”概念的不同用法 ,其中 ,“描述性的”和“规范性的”是两种最基本的区分。不过在本文中 ,“civilsociety”将首先被看成是一种“对照性的”的概念 ,而且除非这一概念的“对照性”用法已被充分地了解和运用 ,否则要在中国语境中恰当地展示其分析性和规范性意义几乎是不可能的。作者强调历史记忆以及在理解和建构社会现实过程中行动者认知和想象的重要性 ,同时也从社会变迁角度指出诸如“民间”这类本土概念的局限性 ,认为“民间”的传统终须被超越 。

近代西方“society”观念的生成

近代西方的"society"观念经历了三次变迁:19世纪以前,"society"是契约社会的代名词,其要义是保护个人权利和自由,要求国家成为专门的职能部门,权力受到制衡和监督,而不再是高高在上的统治者;19世纪上半叶,黑格尔的"civil society"确立了个人—社会—国家框架,指出了社会伦理存在的缺陷,认为社会只是家庭与国家的中介环节,不再是终极的伦理归宿;19世纪下半叶,系统整体的社会观由社会学者确立,"society"具有了跨时空含义。与此同时,社会进化学说确立了西方社会优越性的理论基础,"西方中心论"获得支持,影响深远。

太极图在顶级化学期刊Chemical Society Review中的应用

太极图是中国传统文化的瑰宝,也是中华民族审美文化的源头,受到国人的尊崇。有研究者发现,太极图与数学、物理学等自然科学有着密不可分的联系。从自然辩证法的角度看,太极图与化学也有相通之处。故太极图也出现在了某些化学类期刊论文中,用于更直观更艺术地表现化学类论文的主旨思想及化学类期刊的风采。虽然太极图起源于我国并成为我国最优秀传统文化的凝聚,但相对于国内化学期刊,国外化学类期刊似乎更加偏爱太极图,尤其在封面和图形摘要的设计方面,比如国外顶级化学类期刊Chemical Society Review,尤其钟爱太极图,仅2016年出版的24期期刊,在封面和图形摘要中就出现了11次太极图的相关模型。文章着重讨论一下该刊频繁采用太极图的原因及相关设计思路,以期为国内化学期刊的出版提供借鉴。

“Original Affluent Society”翻译刍议——兼与丘延亮先生商榷

萨林斯提出的"Original Affluent Society"是一个非常重要的经济人类学概念。从人类学对狩猎采集社会认识与表述的演变过程来看,"original society"不应译为具有一定文化价值标准的"原初社会",而应译成较为中性的"初民社会"。就经济状况而言,狩猎采集社会在本质上不是"丰裕社会",而是物产相对丰富、目标和欲求非常有限的"富饶社会"。因此,"Original Affluent Society"译成"初民富饶社会"比译为"原初丰裕社会"妥当。

社会(society)还是社会性(the social)?——社会学学科的再定位

用研究对象来进行学科界定,是社会学的传统做法。这种方法存在诸多问题:宏观与微观的二难;学科史书写中"社会"的强势;以及将社会学理解为研究"社会"所带来的学科边界的模糊性。更值得注意的是,"社会"本身在许多社会学家那里遭到了挑战。这些问题引发了对社会学学科定位的重新思考。社会学区别于其他学科的根本之处就在于它独特的方法论——社会性地看待问题。比起从研究对象出发,从研究方法来界定社会学更具有可取之处。这种对社会学的再界定,必然要求用"社会性"(the social)替代"社会"(society),并将之作为社会学的核心概念。

建设健康社会的催化剂:健康社会工作者与全科医生在基层的合作

以“健康中国”战略为导向,从优势互补专业知识、共同连接医院社区、拓展研究社会健康三个方面去探讨健康社会工作者与全科医生在基层卫生环境中的合作价值,尤其在完善公共卫生应急体系和构建医联体上,健康社会工作者与全科医生的合作可以发挥必不可少的作用,能有效推动健康社会的建设进程。同时文章也指明了目前健康社会工作面临的主要挑战,并提出相应的对策。