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31.
日本自然灾害现状与新态势   总被引:3,自引:0,他引:3  
日本是一个多灾且严重的国家,依据最新资料,分析了日本自然灾害的现状特征;自然灾害影响社会经济发展,而社会经济变化可能成为新的致灾因素并形成新的灾害形式。本文特别对城市化、过疏化、高龄化和网络化与灾害进行了论述;最后论述了“自助”“共助”和“公助”三位一体的防灾基本对策的内容。这些对正处于高速经济发展和城市化的我国来说,具有重要的借鉴作用。  相似文献   
32.
This paper focuses on a case study of an 'alternative' food network based in the Abruzzo National Park, Italy, to explore how ideas of sustainable farmland management can be expressed through broader understandings of developing networks of care concerned with local economies and societies, high-quality specialist food products, particular 'traditional' farming practices and livestock breeds, as well as the ecology of a farmed landscape. The scheme allows customers, internationally as well as in Italy, to 'adopt' a milking sheep on a large mountain farm. In return, adopters are sent food products from the farm. The adoption scheme is inter-twined with an agri-tourism project which provides accommodation, runs a restaurant and engages in educational activities. The scheme is the result of the individual initiative of its founder, and is associated with a strongly expressed ethical position concerning the value of sustaining valued local rural landscapes and lifestyles, and the importance of 'reconnecting' urban dwellers with rural areas, farming and 'quality' food production. Yet the localness of the scheme is sustained through wider national and international networks: volunteer and paid workers are drawn from several European countries, funding has been acquired from the EU LEADER programme, and internet and transport technologies are essential in connecting with and supplying an international customer base. The broader economy of care instanced in this case study draws attention to a need to develop strategies for sustainable farmland management constructed around wider programmes of social, economic and cultural, as well as environmental, concern.  相似文献   
33.
This article discusses the involvement of older women and men in voluntary work in rural communities in the Netherlands. Gender, ageing and civil society form the core concepts in the article. Politicians and policy makers in the Netherlands are worried about the perceived decline of civil society and about the consequences of this decline for specific categories of older women in terms of well-being and social exclusion. The paper presents the results of two surveys of involvement of older women and men in civic organisations, voluntary work and local actions. The surveys indicate high levels of involvement of both women and men. No gender differences are found in activity level. However, the data demonstrate the gendered nature of civil society. Women are more engaged in informal voluntary work and informal local actions, while men are more active in formal organisations and functions. This gender segmentation is not absolute, however. Many older women and men transgress the traditional feminine–masculine boundaries. The surveys highlight the involvement of women and men in rural communities, but indicate lower activity levels in urban areas.  相似文献   
34.
通过对邯郸市某车间地基的勘察.分析和探讨了新近沉积粉细砂地层的勘察手段、其物理力学性质,及其利用载荷试验确定承载力的标准取得了较为满意的结果,提出的一些分析方法,对新近沉积的粉细砂地层的勘察具有一定的借鉴作用。  相似文献   
35.
The transition from the Soviet to the post-Soviet period in and near Moscow manifested itself in increasing production of segregated space both in the urban core and suburban areas outside of the beltway to accommodate the preferences of the new Russian business and governmental elite. This paper focuses on the residential single-family housing inside old and new settlements, which are frequently gated. Approximately 260 of such suburban communities have been developed within 30 km of the beltway during the past few years, of which a majority have some form of exclusion mechanism in place, typically tall solid fences, gates, closed-circuit video surveillance and guarded entry checkpoints. The difference in exclusivity varies from the most exclusive older communities inside Moscow Serebryany Bor enclave and Rublevskoe highway mansions to less exclusive new developments along Novorizkhskoe and Dmitrovskoe highways. Despite high rates of construction, based on sociological surveys in 2003, only about 11% of Russia’s upper class claimed to live in such new “cottages,” with the rest owning condos and luxury apartments in the inner city or older detached homes in villages and small towns. Therefore, not all the needs have been accommodated and more development is certain to take place. The environmental impact of such developments is profound. Based on preliminary LANDSAT image analysis, almost 22% of suburban “green belt” forested land within 30 km zone has been converted to new construction from 1991 to 2001. New construction is now focusing on the remaining fragments of natural vegetation, which will likely lower air quality and water quality available for the city. Ironically, the new developments advertise themselves as “clean and green” with massive investments in unnatural landscaping (seeded lawns, exotic shrubs, river and lake shore “improvements”). This investment highlights the well-known paradox of development in which people move out of town to live near nature, while destroying the wild nature they come to enjoy. “We left city for the weekend It was raining, saw no stars There were fences everywhere Our chiefs behind the bars.” Gennady Shpalikov  相似文献   
36.
藏北申扎地区奥陶纪鹦鹉螺类一新属(Variabioceras)   总被引:1,自引:0,他引:1  
文中材料是采自西藏申扎县塔尔玛乡桥东—扎扛一带鹦鹉螺化石的一部分。描述了3属6种。其中有1个新属Variabioceras gen.nov.和3个新种V.typicum gen.etsp.nov.,V.zangbeiense gen.et sp.nov.,V.robustum gen.et sp.nov.  相似文献   
37.
因子计量图的新思路   总被引:3,自引:0,他引:3  
R型因子分析中,因子计量从所有原始变量中将某一特定因子的有关信息集中起来,可被用来解释某一特定地质作用形成的样品在不同空间的分布等问题,由已知典型地质体的元素含量等地球化学指标计算出来的因子计量系数矩阵作为模型,用这个模型可以计算未知地质体的因子计量,这种方法,不仅可以节省每次加入新样品或舍去部分样品时所有因子计量图都需要重新做的繁重的工作量,而且更重要的是这种图的地球化学意义明确,使我们能够用已知的典型地质现象去预测未知地质观象提供了一条新的途径。  相似文献   
38.
2001年8月19~23日, 在格陵兰举行了规模空前的"冰芯与气候"国际盛会, 会议展示了冰芯与气候环境研究的最新进展. 文中介绍这次会议并概括了近年来的主要研究进展. 与南北极地区的冰芯研究相比, 中低纬度地区冰芯研究是近年来国际冰芯研究中发展最快的. 在这一研究中, 中国科学家做出了重要贡献并得到了国际同行的高度评价.  相似文献   
39.
西藏蛇绿岩中二种合金矿物新变种   总被引:5,自引:0,他引:5  
在西藏雅鲁藏布江蛇绿岩带的东部,距拉萨200km的泽当罗莎蛇绿岩的铬铁矿中,发现有种类繁多的合金矿物,铬铁镍矿和依铁镍矿就是其中二种。铬铁镍矿分子式:Ni0.41Fe0.35Cr0.24,为等轴晶系,空间群为Fm3m,晶胞参数a=0.35622(2)nm。铱铁镍矿分子式:Ni0.66Fe0.18Ir0.16,属等轴晶系,空间群Oh^5-Fm3m,晶胞参数a=0.46486(4)mm。  相似文献   
40.
滇池农村固体废物和化肥流失治理试验研究   总被引:5,自引:1,他引:5  
怎样合理处置农村固体废物和减少农田化肥流失一直是农村面源污染控制的难题之一。该研究将农村固体废物的处理与减少化肥施用措施有机结合,利用微生物复合发酵剂和农村固体废物生产活性肥料,开展了一系列农业种植试验和数据监测,在此基础上,提出了一套实用性强、效果好的控制农业固体废物和化肥流失污染的对策措施。  相似文献   
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