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61.
综合型海滨度假区形态规划研究   总被引:2,自引:0,他引:2  
刘俊  保继刚 《热带地理》2007,27(4):369-374
选取两处中外典型案例——三亚亚龙湾度假区和印尼努沙杜阿度假区进行比较研究,发现成功开发的综合型海滨度假区在形态规划方面存在一些共同特征:度假区与东道社区应保持一定的空间隔离,同时维持度假区与社区之间的互动关系,避免社区在旅游开发中被边缘化;海滨度假区分区规划应坚持级差地租导向和功能控制的原则,使得稀缺的海滨土地资源开发价值得到优化;度假区内通道系统设计应简洁通畅,在保证海岸生态环境不被破坏的前提下,尽可能保持一线度假酒店与海滨沙滩的一体性;度假区内应合理布局若干商业服务中心,既满足度假客人多样化需求,又为东道社区增加就业机会,促进度假区与社区一体化发展。  相似文献   
62.
Rural land use development is experiencing a transition stage of socioeconomic and land use development in China. Historic land use transition process and policy interventions have key influence on the applicability of land use allocation solutions in future land use management. Strategic land use allocation is therefore required to possess a good adjustment capability to the transition process. Although heuristic optimization methods have been promising to solve land use allocation problems, most of them ignored the spatially explicit effect of historic land use transition and policies. To help resolve this issue, this study aims to optimize future land use pattern in the context of rural land use development. We took Yunmeng County, one of the typical major grain producing and rapidly urbanizing areas in central China, as a case study and solved the sustainable land use allocation problem by using an improved heuristic optimization model. The model was constructed based on the integration of a spatial discrete particle swarm optimization and cellular automata-Markov simulation approach. The spatiotemporal land use patterns and policy interventions were represented by the CA-Markov as in spatially explicit transition rules, and then incorporated into the discrete PSO for optimal land use solutions. We examined the influence of the joint effect of spatiotemporal land use patterns and policy interventions on the land use allocation outcome. Our results demonstrate the robustness and potential of the proposed model, and, more importantly, indicate the significance of incorporating the spatiotemporal land use patterns and policy interventions into rural land use allocation.  相似文献   
63.
Surface soils were collected in the aquatic–terrestrial ecotone (ATE) of Yongnianwa wetland, downstream of Haihe River basin of North China in June of 2007. Samples were subjected to a total digestion technique before they were analyzed for total concentrations of Cr, Cu, Ni, Pb, and Zn to investigate their pollution levels in the ATE. The contamination index, integrated contamination index, geoaccumulation index, toxic units, and sum of toxic units were adopted to assess the heavy metal contamination levels and ecotoxicity, respectively. The results showed all the selected element concentrations in upland soils of the ecotone were relatively higher than those in the lowland soils. No Cr pollution was observed in all soil samples, but almost all samples were slightly polluted by Cu, Ni, Pb, and Zn except for Site 1. The contamination indexes and geoaccumulation indexes consistently presented no contamination for Site 1 and slight contamination for other sites. The ΣTUs increased from lowland to upland, but the whole level of toxicity in this ecotone was relatively low.  相似文献   
64.
基于GIS的广东省综合运输体系规划信息平台构建研究   总被引:1,自引:0,他引:1  
广东省交通运输厅从2012年起,组织分期研究开发基于地理信息系统的广东省综合运输体系规划信息平台(简称"平台"),旨在建立健全统一的全省交通运输业数据采集、发布标准及技术管理规范,分别构建5大类运输方式线网及重要的运输枢纽站场节点的多级图层,叠加形成全省综合运输体系布局规划"一张图"。"平台"采用4层设计,依托后台管理、应用分析和综合展示3大子系统,搭建了基础地理信息、经济社会、交通运输现状、综合运输体系规划成果及其他共5大类数据库,"平台(一期)"于2014年3月26日通过验收,实现了多维度、多视角展示和查询交通运输业数据成果的预期功能。研究实践将力促综合运输体系规划研究和决策方式实行根本性变革。  相似文献   
65.
大陆科学钻探是“入地”的重要手段,是“深入地球内部的望远镜”。中国大陆科学钻探事业开展15周年以来,取得重要进展,获得全球地学界的高度关注,特别是2001年实施的中国第一口大陆科学深钻 (5158m),成果辉煌,影响巨大。继后,又开展了青海湖环境科学钻探、松辽盆地白垩纪科学钻探、柴达木盐湖环境资源科学钻探,汶川地震断裂带科学钻探以及中国大陆科钻资源集成计划,总共钻进约 35km,显示了中国科学钻探方兴未艾的景象。为纪念国际大陆科学钻探20周年(1996~2016)和中国大陆科学钻探实施15周年(2001~2016),本文回顾中国大陆科学钻探实施15年来的艰辛和奋斗的历程,展望中国大陆科学钻探的未来。  相似文献   
66.
Being a littoral state, Malaysian maritime sectors provide the basis for the growth and development of marine-related activities. As the country enters the new millennium along with the ‘2020 Vision’ which serves as the basic template against which the economic performance of these sectors should be judged, it poses a new challenge for Malaysia in developing these sectors. This paper attempts to address three basic issues: Firstly, is there any national ocean policy in place? Secondly, are the maritime sectors adequately organized to play an important role in achieving the objectives? Thirdly, what are the opportunities available in developing the ocean?It can be seen that existing policies to develop comprehensive ocean governance have not received the full attention they deserve. Organizational structures governing the ocean for implementing national policies are well in place but in a fragmented and uncoordinated fashion. As a result, sectoral and intersectoral management problems were created such as multiple-use conflicts, overlapping of jurisdiction and duplication of efforts. Environmental problems have also not been properly addressed. A few sectors have been identified as offering opportunities to further develop the Malaysian maritime areas. Among these are marine education and human resources development, marine tourism and the seafood industry.  相似文献   
67.
2007年,Ashok等揭示了赤道太平洋区域存在一种三极型分布海表温度异常并称之为厄尔尼诺-Modoki,同时定义了相应的海表温度异常指数EMI(记为IEM)。在此基础上,利用英国哈得来中心逐月海表温度资料、美国NCEP/NCAR月平均再分析数据集、美国国家海洋和大气管理局(NOAA)逐月降水资料(CMAP),通过在太平洋海表温度异常中扣除厄尔尼诺-Modoki信号后,在Nino1+2区域上定义了东太平洋型海表温度异常指数EPNI(IEPN)。据此,由IEPN和IEM可构成描述热带太平洋海表温度异常变化的一对指数。分析了两个指数相应的海气状态及对海洋性大陆区域气候异常的影响。结果表明,厄尔尼诺-Modoki和东太平洋型海表温度异常及其影响存在显著差异。在北半球夏季,当IEM处于正位相时,热带太平洋海表温度异常呈现“负-正-负”的结构,海洋性大陆大部分区域海表温度异常为负,此时对流层低层太平洋地区辐合,海洋性大陆地区辐散,对流层高层太平洋地区辐散,海洋性大陆地区辐合。对应于辐合辐散中心,存在着自赤道中太平洋分别向赤道东太平洋和海洋性大陆中东部地区的异常垂直环流圈,同时也存在自海洋性大陆西部向印度洋西部的垂直环流。大气在海洋性大陆区域北部加热,南部冷却;在太平洋地区西部加热而东部冷却;在海洋性大陆区域10°N以南降水偏少,而10°N以北降水偏多。当IEPN处于正位相时,热带太平洋海表温度异常呈现“西负东正”分布型,海洋性大陆区域海表温度异常呈现“西正东负”分布,对流层低层海洋性大陆地区辐散中心范围偏大、位置偏东、强度偏强,太平洋地区辐合中心范围偏小、位置偏东,热带环流异常在垂直方向上呈斜压结构,海洋性大陆区域北部大气加热而南部冷却,太平洋地区大气均呈加热正异常,海洋性大陆大部分区域降水均偏少,赤道太平洋降水偏多。以上这些结果有利于深刻理解热带太平洋海表温度异常的特征及其对海洋性大陆区域气候的影响。  相似文献   
68.
This paper summarizes the overall benefits supplied by Mediterranean marine biodiversity to human health and highlights the anthropogenic and environmental causes that are threatening these benefits. First, the Mediterranean Sea is a valuable source of seafood, which is an important component of the so-called “Mediterranean diet”. This type of diet has several health benefits, including cardio and cancer protective effects, which are attributed to the high intake of seafood-derived n-3 (omega-3) fatty acids. Second, the Mediterranean marine organisms, particularly the benthic ones, have furnished a large variety of bioactive metabolites, some of which are being developed into new drugs to threat major human diseases such as cancer. Third, the Mediterranean coastal areas provide environments for practising maritime leisure activities that provide physical and psychological benefits to users. Despite all this, fishing, tourism, contamination and sea warming are deteriorating this rich marine ecosystem, which needs to be protected to assure human welfare.  相似文献   
69.
Despite the increasing public profile of same-sex issues, health policies are often shaped by heteronormative assumptions. The health concerns of lesbian, gay, bisexual, transsexual/transgender, two-spirit, intersex, queer and questioning (LGBTTTIQQ) people are complex and require broadening from an often exclusively sexual health and risk focus to a more holistic approach. In this context, this paper illustrates how a critical feminist geography of health, with its focus on the mutual construction of gender relations, space and place, potentially enhances and extends current understandings of public health policy and practice. Moreover, the use of a policy lens foregrounding gender and other power relations suggests that feminist research and coalitions facilitate participatory processes that address “the politics of discourse.” In particular, public health nursing practice can enhance the construction of spaces of resistance that challenge heteronormative discourse through research strategies focused on sexual minority communities’ health experiences and their visions for supportive care. In this respect, two strategies consistent with public health priorities to increase knowledge and participate in alliances are described. Ethnographic research with childbearing lesbians demonstrates that attention to institutional dynamics that foster safe spaces can facilitate access to public health services. Public health nurses’ involvement in community coalitions can enhance dissemination of community knowledges. The implications for gender inclusive and place-sensitive public health nursing practice include the development of sensitive educators, meaningful educational curriculum and related program planning, explicit policies, community partnerships and political leadership in institutional and research venues.  相似文献   
70.
基于柯布-道格拉斯生产函数与自回归移动平均模型(ARIMA)构建出一个GDP综合预测模型,并且考虑十九大全面建成小康社会与实现共同富裕的精神与国家关于技术、资本、劳动力等方面的区域平衡发展战略调整模型的参数,计算了2016—2050年中国分省的GDP总量与人均GDP,进一步通过计算省区间人均GDP的基尼系数来分析省区协调发展的水平。研究结果表明,在考虑省区协调发展时,各省区在2016—2050年间的GDP总量与人均GDP的差距逐渐缩小,省区间人均GDP的基尼系数将从2015年的0.219下降到2030年的0.176和2050年的0.137,未来区域间发展不均衡的态势在实现经济稳步增长同时可以得到缓解。  相似文献   
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