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31.
The marine trophic levels targeted during Swift Creek (AD 300–700) and Savannah (AD 1200–1500) occupations at the Cathead Creek site (9Mc360) and at two sites from the Kings Bay Locality (9CAM171a, 9CAM177), coastal Georgia, USA, differ in a consistent temporal and spatial pattern. Vertebrate and invertebrate remains from these three coastal sites contain similar suites of estuarine animals. However, Swift Creek peoples at these distinct hydrological settings obtained more biomass from fishes and less from molluscs compared to the subsequent Savannah occupants. The two Swift Creek faunal collections are less rich, more diverse, and more equitable than the two subsequent Savannah collections regardless of location. Furthermore, the mean trophic level is higher in the Swift Creek collections compared to the Savannah ones at both locations. These observations apply to both biomass and Minimum Number of Individuals. These differences likely are defining characteristics distinguishing the Swift Creek and the Savannah economies. More research is needed to determine the extent to which these temporal and spatial patterns are attributable to environmental and cultural variables.  相似文献   
32.
Economic globalisation has led to a huge increase in demand for food, goods and services by expanding urban middle class populations. These demands cause environmental changes that in turn feed back upon the urban environment and human population. While the global changes are well researched, the cumulative significance of local environmental changes is less well known. Yet, the local changes may have greater impact on the decisions which individuals make that affect soil erosion and land degradation. People respond to family circumstances and to local economic opportunities in ways that most suit the needs of their families and households. Several demonstration projects that were not adopted offer lessons in understanding how people make their land‐use decisions. An understanding of people's past experiences, present needs and views of the future helps those seeking to improve environmental management to promote policies and actions that are likely to succeed by being acceptable to those involved.  相似文献   
33.
In the second paper of a symposium devoted to the contemporary status of Belarus, a noted American specialist on the electoral geography of the states of the former Soviet Union challenges assertions in the preceding article (Ioffe and Yarashevich, 2011) that only Russia and Ukraine are valid comparators against which to gauge the success of the Lukashenka model. Expanding the scope of comparison to include the three other countries neighboring Belarus (Latvia, Lithuania, and Poland), he demonstrates that a broader range of policy changes can be considered by its leadership in efforts to limit damage from the economic crisis in Belarus and position the country for renewed growth within a global economic frame-work. Examination of a wide range of social and economic indicators and government policies reveals, however, that in many ways an unreformed Belarus is poorly positioned for competition in an increasingly interconnected world, in which the elements for successful development are quite different from those providing economic stability in the past. A closing section of the paper revisits the debate on whether most Belarusian citizens actually aspire to a more "European" way of life or instead prefer the "Eastern" alignment and reliance on a Russian benefactor whose own economic future looks increasingly uncertain.  相似文献   
34.
A noted Hong Kong-based economist addresses the emerging financing problems prompted by debt-laden local governments in China in the aftermath of the global financial crisis. More specifically, using the most recent data available, he traces the root of China's local debt overhang to a protracted debt-financed infrastructure investment boom in which several key institutions (the cadre evaluation system, the land management regime, and the banking sector) have created an environment that draws local governments into a land-infrastructure-leverage trap. The author argues that the resulting high levels of debt may ultimately impede the country's efforts to mitigate structural imbalances in its economy. Journal of Economic Literature, Classification Numbers: H600, H700, P200, P300. 3 figures, 9 tables, 121 references.  相似文献   
35.
关于当代中国边疆研究中的几个问题   总被引:1,自引:0,他引:1  
关于边疆的界定问题 ,在 2 0世纪 90年代以前 ,我们往往只提陆疆 ,在这以后有所改变 ,增加了海疆的概念。我们在观察边疆地区的时候一定要历史地看 ,中国疆域的历史发展呈现出延续性和波动性相结合的特点。边疆的重要战略地位不仅体现在边疆地区是国防的前线、改革开放的前沿 ,还体现在边疆地区的稳定与发展是我国可持续发展的重要保证  相似文献   
36.
Between 1934 and 1939, over 5000 people, mainly ex-miners and their families, were settled in government-owned land settlements in England and Wales. This policy emerged as a response to mass unemployment, and complemented other schemes for the unemployed developed by the inter-war National Government. This paper will consider the geographical conditions that were imagined, realized and contested in these settlements. Acknowledging the hybrid and liminal nature of these spaces, the paper mobilizes new work in cultural and historical geography and draws out the heterotopic potential of the settlement programme.  相似文献   
37.
The Russian mathematician and physicist Friedmann and the Belgian priest and physicist Lemaître were the first to consider non‐static world models in the framework of Einstein's general theory of relativity. Friedmann seemed to favour a periodic, oscillating cosmological model. His investigations were taken up by Russian cosmologists in the 1960s. They stated that the singularities present in many of the Friedmann‐Lemaître cosmological models seemed to be artificial and were ascribed to the assumption of a highly symmetric distribution of cosmic matter. Their disapproval of singularities seems to be in accord with Soviet ideological requirements during that time like atheism and dialectic materialism. They had to retract their statements after Hawking had proved his singularity theorems and after the microwave background had been discovered. Hawking followed the line of thought which was initiated by Lemaître in the early 1930s. Lemaître had combined for the first time quantum physics and relativistic cosmology and had developed his idea of the primeval atom, a beginning of the universe in a dense state with just one quantum containing the whole mass of the universe. Pope Pius XII brought together this primeval atom and God as the Creator of the universe and declared in 1951 that big bang cosmology is compatible with the Bible. Not surprisingly Hawking was awarded the Pius XI medal by the Vatican in 1975 for his contributions to big bang cosmology.  相似文献   
38.
1889年的明治宪法是一部以天皇大权为中心的专制宪法,议会的权限有限,但是由于它被赋予了重要的预算审议权等财政权限,促使战前日本天皇制的政治体制中竞产生了政党政治。那么,宪法的缔造者——伊藤博文为什么会把这么重要的权力赋予议会?有学者认为,伊藤博文等人对“宪政及各类政体的精神”有着“深刻的理解”是重要原因。而本文则通过对近世以来日本地方上存在的租税协议惯行、明治维新后地方民会和府县会的预算审议权以及宪法发布前政府及民党的宪法草案内容等进行分析,认为议会拥有预算审议权等财政权限已是当时普遍的基本的认识,具有广泛的社会基础,伊藤博文不可能逆社会潮流而动也是重要的原因之一。  相似文献   
39.
Cet article présente les caractéristiques et l'évolution de la propriété foncière, du marché foncier et des systèmes de production agricoles en Lombardie orientale au 19e siècle. L'auteur analyse les impacts sur l'exploitation de la terre de la substitution des propriétaires fonciers nobles par des bourgeois; des maladies du ver à soie et des vignobles, de l'arrivée des grains américains moins chers; de l'utilisation d'engrais chimiques et d'équipements modernes. Il montre que si la petite propriété représente toujours près d'un tiers du total et que la magnanerie et la viticulture diminuent, il est relevé une croissance des cultures céréalières et fourragères et des dépenses consacrées aux innovations technologiques. Il signale la rationalisation des cultures, l'amélioration des rendements et de la qualité des récoltes ainsi que des revenus non déclarés pour éviter les impôts et explique pourquoi les investisseurs préfèrent les petits aratori comportant des mûriers et des vignobles. Enfin, il donne à voir que l'organisation des exploitations reste liée au degré de risque pris par le propriétaire (la rente fixe garantie par le bail à ferme payé en argent ou une gestion directe de la propriété) et aux cultures (la présence des vignobles et de la magnanerie favorisant les sharecropping contracts).  相似文献   
40.
本文以上海老城厢城市景观演变的历史过程为主线,分析了主导这一过程的驱动因素及其相互间的关系。在人为侵占与河浜自然属性的交互作用下,"因浜成路"一直是上海老城厢独具特色的城市扩展方式;19世纪下半叶,传统的环境基础加上西方公共卫生观念的介入,使原来民间层面上的"因浜成路"发展为官方主导下的"填浜筑路",主干河浜消亡的速度骤然加快。这虽然局部改善了老城厢的市容与卫生状况,却对整体的水网生态和后来的城市环境造成了不利影响。这一过程中的内在规律,恰从区域可持续发展的角度,对城市化进程中人与自然间的耦合关系和互动尺度做出了注解,因而具有一定的启发意义。  相似文献   
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