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231.
1970~2008年中国10次大地震预测预报经验教训的初步探讨 总被引:1,自引:0,他引:1
将监测预报工作过程从预测意见提出—取得共识—加强监测—提供社会—预测结果,称为工作流程;将各工作阶段的相应中、短、临阶段的前兆异常现象的认识和先后发展,称为技术流程.对1970~2008年10次中国中东部7级以上大地震的工作流程和技术流程进行了总结和对比,得出了一些对今后监测预报工作值得借鉴的经验与教训,可供同行们参考. 相似文献
232.
Peter A. Johnson 《制图学和地理信息科学》2017,44(2):128-138
ABSTRACTThe current popularity of government open data platforms as a way to share geospatial data has created an opportunity for government to receive direct feedback and edits on this very same data. This research proposes four models that can define how government accepts direct edits and feedback on geospatial data. The four models are a “status quo” of open data provision, data curation, data mirroring, and crowdsourcing. These models are placed on a continuum of government control ranging from high levels of control over data creation to a low level of control. Each model is discussed, with relevant challenges highlighted. These four models present an initial suite of options for governments looking to accept direct edits from data end users and can be framed as a partial realization of many of the principles of open government. Despite the varied potential of these approaches, they generate a shift in locus of control away from government, creating several areas of risk for government. Of these models, near-term interest may focus on data curation and data mirroring as evolutionary, rather than revolutionary steps that expand on the simple provision of open data. 相似文献
233.
《The Journal of geography》2012,111(2):81-85
Location knowledge is typically assessed using outline maps. A new set of questions reflect spatial thinking research and helps to assess student location knowledge. A small group (145) of first-year college students helped to refine the items. Question styles include: open-response, multiple-choice, listing, labeling, and sketching. Topics include: grid knowledge, world regional references, neighboring countries, neighboring features, and shapes of borders. This instrument combines spatial thinking research and expectations in geography standards. 相似文献
234.
使用参与性农村评估、历史资料文献、生态时限等方法,重点分析农牧民偏好对生态建设工程的生态适应性。结果表明:山江湖农民和三江源牧民在经济收益最大、生产方式延续和信仰习俗维持上的偏好是决定政府主导生态建设工程能否顺利实施并取得预期成效的稳定性力量,具体生态适应性措施选择和对策安排时必须确保、延续或维持,它们有的可为生态适应性对策的安排或进一步合适调整提供新的思路或指示,有的则因本身就是生态适应性恢复或重建做法可直接利用的。但是,山江湖农民偏好归根结底就是对经济利益最大化的追求,山场重建的适应性安排中易于利用,而三江源牧民偏好则仍停留于宗教习俗框架内,草场恢复的适应性调控中难以改变。但在施加适当引导措施的情景下,前者可转换为更为主动的适应性参与而后者仍有很大的被动性。 相似文献
235.
236.
武洪涛 《测绘与空间地理信息》2012,35(4):53-55,58
通过对义马市各单位信息化现状的分析,提出了电子政务系统建设的目标.对电子政务系统的用户进行了分析,提出了整个系统的体系结构、总体框架和各业务模块功能.最后对电子政务建设的保障提出了相应的措施. 相似文献
237.
David Berry 《The Professional geographer》1987,39(4):428-437
A crucial characteristic of federal systems is the distribution of regulatory power between the states and the national government. Four factors affect the distribution of powers in the U.S.: the geographic scope of issues, institutional competence at state and national levels, protection of democratic values, and economies of administration. Local or scattered occurrences of a problem, national governmental rigidity, desire for extensive public participation, spatial variation in regulatory preferences, and diseconomies of scale in administration favor state regulation. Widespread occurrences or national significance of a problem, state governmental rigidity, spillover effects, abhorrent local preferences, and economies of scale in administration favor national regulation. 相似文献
238.
239.
Abstract: The task of designing appropriate institutional arrangements for metropolitan government and planning has recently proved highly contestable politically. We interrogate how the role of the Auckland Regional Council (ARC) was zealously contested and hollowed-out during the 1990s. More recently, the impacts of the neo-liberal reforms in Auckland have been mediated by a further round of local government reforms inspired by a Third Way ideology and by the imperative to respond to the planning crisis resulting from infrastructure underinvestment. New regionally based governance arrangements and planning processes have been created. We argue that this new commitment to regionalism can realistically expect to be tested by deep-seated political cleavages within Auckland and by Auckland's relationship with central government. 相似文献
240.
With the transition to democracy in 1994, South Africa was faced with an enormous challenge in redressing the highly unequal and racialized pattern of land rights inherited from the colonial and apartheid past. In Namaqualand, a history of land dispossession and racial segregation presented the new government with a complex set of problems, which led to a series of distinct policy responses within the context of the wider national land reform programme. Land reform in Namaqualand aims to impact positively on local people's access to land, improve livelihood opportunities and develop the local economy. Unique features of the land reform process in Namaqualand include the reform of tenure in the former Coloured Rural Areas, the prominent role played by local municipalities and the heavy reliance on municipal commonage as a form of landholding. This study provides and overview of the process of land reform in Namaqualand since 1994, considering the three elements of tenure reform, land redistribution and restitution of historical land rights. It concludes that, while considerable progress has been made in provision of additional land to historically disadvantaged communities, obstacles remain in the area of post-transfer support to new and emerging farmers. 相似文献