On the correlation between the formation of the “Maowusu Desert” and land use in Liuhu sub-prefecture in the Tang dynasty

The historical changes of the “Maowusu Desert” can be divided into three phases: the late Tang dynasty phase, the Song-Yuan-Ming dynasty phase, and the late Ming dynasty to the present phase. Different parts of the desert were formed in different times, with the northwestern part being the earliest to form. As all evidence shows, the Maowusu Desert in its early stage is believed to have taken shape largely around the ancient site of the You state during the years of Tianbao in the Tang dynasty, which is nowadays the eastern half of the Etuoke banner and Prior-Etuoke banner. The formation of the initial Maowusu Desert is not attributed to the so-called over-cultivation from farming but to the long-time exceedingly quartered husbandry starting from the 4th year of the Zhenguan to the years of Tianbao in the Tang dynasty, which resulted in the destruction of the ecology of the natural grassland. __________ Translated from: Shaanxi Shifan Daxue Xuebao 陕西师范大学学报 (Shaanxi Normal University Journal), No.3, 2004     

传统农区城乡体系空间结构演变及其形成机制研究——以河南省周口市为例

以传统农区周口市为研究对象，利用聚落斑块面积和相关社会经济指标，探讨了周口市城乡体系空间结构演变规律与作用机制。研究发现，周口市城乡体系空间结构演变呈现低端均衡结构（1973年）-点轴结构（1990年）-中心外围结构（2000年）-圈层结构（2015年）的演进过程，每种结构对城乡要素流动的方向和作用各不相同，从而使城乡体系的空间结构各不相同。交通导向机制是影响城乡体系空间结构演变的早期主导因素，促进城镇体系空间结构不断拓展，并带动乡村体系空间结构不断更迭；特色产业是影响城乡体系空间结构的新机制，助推城乡体系空间结构进一步完善；政府作用机制有效地引导城乡体系空间拓展方向，推动城乡空间格局结构性地演变。     

The Lower Paleolithic of the Arabian Peninsula: Occupations,Adaptations, and Dispersals

To understand major processes of human evolution during the Plio- Pleistocene, it is necessary to consider the available evidence from key regions of the Old World. The Arabian peninsula is often depicted as a key geographic route for hominin dispersals in Out of Africa models, although the available primary evidence is rarely cited. And yet, significant Lower Paleolithic assemblages have been identified in many parts of the peninsula, including in areas near the Strait of Bab al Mandab. The presence of Oldowan-like and Acheulean assemblages may reflect at least two major dispersals outside of Africa. Acheulean localities are particularly abundant on the Arabian peninsula, and variations in stone tool manufacturing techniques and tool-type frequencies may reflect temporal changes in assemblages. Although there is good potential to chronometrically date sites in the Arabian peninsula, absolute dating methods have not been adequately applied, most temporal reconstructions relying on typotechnological change. If the Arabian peninsula is to provide solid evidence for understanding hominin adaptation and dispersal patterns, future fieldwork in secure depositional contexts needs to be conducted to overcome current limits in dating and environmental reconstructions.     

2000—2018年全球恐怖袭击事件危害评价及时空演变研究

本文运用模糊综合评价、K-Means聚类等方法,探讨了全球恐怖袭击事件的危害程度及时空演变特征。研究发现：①发生频次最高的年份为2010年和2011年,地区为南亚、中东和北非,袭击类型为轰炸/爆炸,国家包括印度、伊拉克、巴基斯坦等;②危害程度越高的恐怖袭击事件其集中化程度越高;一级、二级事件主要分布在中东和北非、南亚等地区,三级、四级和五级事件主要分布在南亚、中东和北非及东南亚等地区;③空间上大致分为中东、中亚和南亚三大活跃区,菲律宾群岛等九大次级活跃区,爪哇岛和苏门答腊岛等其他风险区。本文对理解恐怖主义特征以及全球共同抵制恐怖主义具有重要参考价值。     

An economic and financial geography of the Australian superannuation industry

The Australian superannuation industry has grown enormously over the past 30 years. Whereas working people are automatically enrolled at their workplaces, the head offices of many industry funds are in Melbourne rather than Sydney. Melbourne’s dominance of the superannuation industry is explained, in part, by happenstance—the location of major unions and employer groups and their initiatives in response to the enabling legislation. Other factors identified include opportunism, cooperation, and the advantages of growth. Government-prompted mergers and acquisitions have also reinforced the dominance of Melbourne, notwithstanding attempts by Sydney-based superannuation funds to out-compete their Melbourne rivals. Whereas the geographical bifurcation of the Australian superannuation industry has been mediated by the formation of a Queensland-based superfund “champion,” it is suggested that it faces numerous challenges. In conclusion, avenues for future research are sketched, focusing upon the future of Melbourne as the centre of the superannuation industry, the role of digital platforms in service delivery, pension adequacy, and the increasing importance of Australian funds in global financial markets.     

公平和效率抉择的演进与和谐社会的构建

公平和效率是相互作用、相互依存的,两者的地位和作用随着时代的发展而发生变化。对效率与公平如何进行抉择必须充分考虑到历史的、政治的、思想的因素,中国特色社会主义就是在公平优先、兼顾效率到效率优先、兼顾公平再到公平与效率并重的模式选择中渐进发展的。     

上海市购物中心的时空格局演化及影响因素

基于网络数据和地理信息数据,运用空间分析法和条件Logit模型,分析了上海购物中心的时空格局演化特征及影响因素。研究表明：(1)上海购物中心的空间布局经历了四个发展阶段。观察期内,其空间分布的轴线均呈东北—西南走向,整体布局趋向均衡。(2)上海购物中心具有全域分散化与局域集聚化并存的演化特征。中、外环附近的购物中心密度逐步提升,区县、街道的空间差异不断缩小。在城市不同方位上,则形成了一个核心集聚区、四个次级集聚区的空间组织结构。(3)市场需求、地租成本、交通可达性、政策规划、集聚因素对购物中心布局具有显著影响。随着时间推移,休闲资源和政策规划的影响有所减弱,购物中心倾向于从集聚发展中获益。     

旅游资源开发的时代演进及发展趋势浅析

旅游资源开发是旅游业发展的基础。在漫长的历史发展中,其经历了自发时代、自觉时代、生态时代,正向信息时代迈进。本在分析旅游资源开发历史演进的基础上,提出“竞争与合作相统一”的开发理念,“科学化 网络化”的开发方式,“多元目标协调”的开发目标,探讨了其在新世纪里的发展趋势。     

Recent Advances in Maya Archaeology

This paper focuses on the discoveries of the last decade in Maya archaeology, and assesses their impact on previous models and synthetic frameworks. Although the bibliography includes 700 items published during the last 10 years, it is not exhaustive; on the contrary, a frustratingly large number of discoveries had to be omitted. Two areas exploding with new research are (1) the elicitation of a greater variety of data from hieroglyphic texts, and (2) a series of chemical and biological breakthroughs in the analysis of human burials. The former make it easier to assess the role of elite actors or agents in processes of sociopolitical change. The latter hold out the hope of documenting warfare (through skeletal trauma), migration (by tracing tooth enamel isotopes to ground water), status or gender differences in diet (through bone chemistry), and biological connections of individuals to each other and to earlier populations (through DNA). By combining these new data, we are on our way to integrating humanism and science, and to treating Maya polities as case studies in primary or secondary state formation.     

我国城市系统的形成和演进机制

我国城市系统的演进可归纳为萌芽与形成、低级均衡和合理不均衡三个阶段。形成和演进动力在于人类活动与产业及其空间实体的相互作用,其核心要素是行政等级城市网络、经济发展和市场联系与交通设施。文章指出城市系统合理演进应采取"组织与自组织"的战略,提出我国未来城市发展阶段(扩散均衡阶段和有序网络化阶段)及城市系统特征:中心城市网络体系的形成;城市职能的综合性与分异性;城市集聚区的形成和相对均匀分布。