河谷型城市居民生活空间质量特征及社会效应——以兰州市为例

城市居民高品质生活建设是推进新型城镇化、提升城市功能品质的有效途径。以兰州市为例，借助步行指数从安全性、健康性、便利性、舒适性和社会性五个维度构建城市生活空间质量指标体系，对兰州市河谷地区1221个居住小区生活空间质量及其产生的社会效应展开分析。结果表明：①兰州市城市综合生活空间质量整体偏低，呈“一主两次”的多核组团式空间结构，且具有“东高西低”的不均衡特征。②舒适性空间呈“高值—分散、低值—集中”；便利性空间呈多中心向外递减的趋势；健康性空间呈“中间高，两头低，高值偏东”格局；安全性空间呈河谷中心向外递减的趋势；社会性空间呈河谷中心高度集聚、边缘低值集中连片分布。③生活空间质量以中等质量生活空间、较低生活质量空间、低质量生活空间为主，较高生活质量次之，高质量生活空间最少。④兰州市生活空间质量分异产生了居民住房不平等与居住分异、资源配置失衡与空间剥夺、社会信任危机与社会隔离，以及居住区有机更新和空间重构等社会效应。     

基于腾讯迁徙大数据的长三角城市群春运人口流动时空特征

开展城市群人口流动研究对促进区域人口有序流动和城市群协同发展具有重要的理论和实践指导意义。本文基于腾讯迁徙大数据，运用GIS空间统计和K-shell分解等方法，从人口流动总量、位序、时序和网络层级等方面，对我国长三角城市群2018年春运期间的人口流动特征进行系统研究。结果表明：①长三角城市群春运期间大规模的“返乡流”和“返城流”呈现明显的对称性，并分别于除夕和第一个工作日达到最高峰。②经济发展水平相对较高的上海、苏州、杭州等为劳动力输入型城市，而经济发展水平相对较低的盐城、安庆和滁州等为劳动力输出型城市。③长三角城市群内部人口流动网络具有明显的层级特征，其中上海和杭州是人口辐射核心城市，上海-合肥、上海-南京、上海-杭州等是人口流动的主体路径；空间上东部-西部横向人口流动最为频繁，大体呈现“Z”字形。     

Retracing Rivers and drawing swamps: Using a drawing tablet to reconstruct an historical hydroscape from army corps survey maps

Abstract

This article presents a novel geospatial approach to reconstructing and analyzing environmental change over extensive spatial and temporal scales, even in systems such as rivers and streams that are comparatively difficult to digitize. We used a drawing tablet and stylus to digitize features found on historical Army Corps maps across the spatially extensive landscape of the Lower Wabash River’s riparian zone, in Indiana and Illinois, USA. The methodology allows for an efficient reconstruction of sinuous and irregular environmental features, such as sloughs, and demonstrates the utility of digitizing historical maps to understand the evolution of surface water quantity and location across a landscape. We then compared these historical data to contemporary environmental datasets for the same study area to understand what changes have occurred over a 100?year period. This reveals that the hydroscape of the Lower Wabash River has been significantly altered by past human activity, notably through the reduction of swamps, wetlands, and sandbars, and the increase in drainage ditches and overall stream area. Notably, many of these historical alterations are not captured within current environmental datasets.     

宣和御府印格式研究

本文将现代考古学“类型学”的方法,转用到印章学的研究之中,对所见宣和御府诸印逐一进行了样式分析与位置比较,指出,见于传世品上的宣和印,分别出自50方彼此各异的印章;并通过与《宣和书谱》、《宣和画谱》的对照,辨析出宣和真印、伪印;在此基础上,确认了每一种宣和印的“标准位置”以及宣和印的“常规组合”。还论及宣和印的钤盖原则、仿刻印与原印、宣和印的诸多称谓,以及宣和“五玺”、“六玺”、“七玺”与宣和装的关系等问题。     

Heeding the warnings: Deng Huaxi and Zheng Guanying’s Shengshi weiyan

ABSTRACT

This article establishes a link between Qing-dynasty official Deng Huaxi (1826–1916) and comprador Zheng Guanying’s (1842–1922) political treatise Shengshi weiyan (Warnings to a Prosperous Age). It suggests that Deng Huaxi’s reforms as provincial governor of Anhui and Guizhou were inspired by Shengshi weiyan. The work did not come to be applied in the 1898 Hundred Days Reform but saw at least partial success in the modernization of the two landlocked provinces. This interpretation supports the scholarly consensus that the geographical extent of the late Qing self-strengthening reforms was contingent on various persons and places and being far more focused on coastal provinces. It also suggests that the nature, pace, and scope of reforms lay at the discretion of governors-general and provincial governors, many of whom possessed few resources with which to implement them fully. The story of Deng Huaxi challenges a common idea about late Qing China: that meaningful reforms relied only on men with deep political connections to the central court and access to private fortunes. It also shows how effectively messages by Zheng Guanying and other theorists could reach local administrators and leaders and how, in provinces not so dominated by conservative literati elites, Western-style reforms garnered much appeal without too much resistance.     

Stone age predation on large African bovids

Crown height measurements are used to establish age distributions for several species of larger bovids represented in faunal samples from the Middle Stone Age (earlier Upper Pleistocene) deposits of the Klasies River Mouth Caves and the Later Stone Age (later Upper Pleistocene/Holocene) deposits of Nelson Bay Cave, South Africa. There are no obvious differences between the sites in the age distributions of the species they share, but there are significant differences in age distributions among species. Two basic patterns are apparent. In the first, characterizing the blue antelope (Hippotragus leucophaeus), roan antelope (Hippotragus equinus), Cape buffalo (Syncerus caffer), and giant buffalo (Pelorovis antiquus), the archaeological samples contain numerous very young animals and relatively few prime-age adults. At least in the buffalo samples, there is also a fair representation of old adults. In the second pattern, characterizing the bastard hartebeest (Damaliscus dorcas or D. niro) and especially of the eland (Taurotragus oryx), prime adults are far more prominent relative to younger and older age groups. The first pattern is similar to the natural pattern of attritional mortality that probably characterizes all healthy, stable populations of free-ranging large ungulates, while the second is more reminiscent of the age structure of live herds. The first pattern may reflect hunting focused on individual animals, particularly those whose age made them most vulnerable, while the second may reflect the susceptibility of certain species to driving, so that whole groups could be killed in traps in which differences in age had no meaning.     

Ukraine’s national integration before and after 2014. Shifting ‘East–West’ polarization line and strengthening political community

ABSTRACT

This article addresses the question of Ukraine’s societal polarization along the East-West line and the state of cohesion and endurance of its political community. In both political and academic discourses, Ukraine is often characterized as a country split between Western and Eastern regional and societal parts belonging to some wider geopolitical and cultural entities. Moreover, the recent upheavals in the life of the country – Euromaidan Revolution, illegal annexation of Crimea and Russian-Ukrainian war in Donbas – have actualized the allegations about Ukraine as a feeble state structure on the brink of disintegration and collapse. The findings in this study challenge both of these claims and it is argued that Ukraine is not a deeply divided or failed state. In practice, the East-West political polarization line is not clearly defined, but to the extent that it does surface in the political and electoral contests, this line has been moving from west to east since the early 1990s. The shifting of the polarization line implies that political and cultural identities in Ukraine are not fixed and, at the same time, reflects a strengthening cohesion of Ukraine’s political and cultural space. These findings are confirmed by the improved and ever-increasing convergence of Ukrainian society following the Euromaidan and Russian military aggression.