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341.
界定生态安全的概念需要将生态安全与环境保护、生态破坏、生态风险等相关概念进行甄别:保障生态安全与环境保护并非同一概念,生态安全立法规制的对象不仅仅针对生态破坏行为,实现生态安全的途径是对生态风险进行有效控制。与法的其他价值目标相比,生态安全是社会的"底座安全"因而成为法秩序的基本价值追求。将保障生态安全作为一种新的理念融入环境法体系,以赋予公众生态安全权为突破口,确认生态安全的实体性权能并落实公民的生态安全知情权、生态安全管理参与权、生态安全请求权等程序性权能,对公众的生态安全利益提供全面保护和制度化救济,是为我国生态安全立法的现实路径选择。  相似文献   
342.
矿业权实地核查关键技术探析   总被引:1,自引:0,他引:1  
矿业权实地核查是国土资源大调查中的一项重要工作,是国家加强矿政管理的重要举措,其成果是合理设置矿业权、保障矿产资源勘查开发秩序的重要依据.该文结合山东省矿业权实地核查工作经验,对影响核查成果质量及工作效率的测量技术、数据转换、数据库建设等关键技术进行了探讨,对今后矿业权实地核查工作具有指导意义.  相似文献   
343.
Amy Ross 《Geoforum》2006,37(1):69-81
As in other Latin American nations, Guatemala established a truth commission as a part of a negotiated transition from war to peace. The establishment of a particular truth commission arises out of the unique circumstances of that nation’s conflict and its negotiated resolution. As with other examples of truth commissions, the Guatemalan experience demonstrates the dilemmas of answering the demands for accountability, within the precarious context of a negotiated transition. Once established, a truth commission is subjected to the struggles within sectors of society striving to control the truth commission, and make it respond to certain interests. These struggles influence the practices, powers, and potential of the truth commissions.This article analyses the context in which the Guatemalan Commission for Historical Clarification emerged, the conditions in which it operated, and the potential consequences of the truth-seeking process. I argue that the Guatemalan truth commission became a site of struggle in which battles concerning impunity versus accountability occurred. This article first traces the phenomenon of truth commissions in Latin America, and locates the Guatemalan case within this regional context. Next, the negotiations that led to the formation of the truth commission are examined, in order to highlight the particular powers and interests at stake. Finally, I describe the operations of the Guatemalan truth commission in practice (1997-1999), and discuss the ways in which the commission developed a life of its own, despite the politics of its birth.  相似文献   
344.
Marine genetic resources are a subject of a growing body of research and development activities, as demonstrated by the abundance of marine patented genes reported in GenBank. Given the lack of a comprehensive legal regime for the management of marine genetic resources in areas beyond national jurisdiction, the General Assembly of the United Nations met in 2006 to discuss whether there are regulatory or governance gaps and how to address them. Besides the crystallization of the different political positions, the process is now advancing towards making a decision about whether to develop an international instrument under the United Nations Convention on the Law of the Sea (UNCLOS) for the conservation and sustainable use of marine biological diversity, within which the regulation of access to genetic resources and the sharing of benefits from their utilization has emerged as an in-dissociable issue. In order to propose concrete options to be considered for the establishment of a legal framework addressing these issues, policy-makers need to better understand the feasibility, the costs and the modalities of scientific activities undertaken, together with the actual level of commercialization of new products. They also need to be aware of the already advanced practices in place within the scientific community, especially regarding sharing of non-monetary benefits. This paper particularly highlights and discusses practical scenarios to advance in the international process, based on the approaches adopted in other regional and international regimes for the management of genetic resources and on the best practices developed within the scientific community.  相似文献   
345.
Some authors defend the implementation of regulation mechanisms such as individual transferable quotas, that is, the capacity to assign every fisherman an individual right so that he can fish a certain quantity of a specific species during a concrete period of time, as the most efficient way to reach a greater resource assessment and to guarantee biological sustainability. Nevertheless, much attention has been brought to the fact that, since these rights can be sold, negotiated, exchanged or transferred by the owners, it can bring about a concentration process, which would not favour social equity.  相似文献   
346.
李宝华 《海岸工程》2001,20(2):57-63
分述山东省海岸带木兰科各属植物的种类、形态特征、开花结果日期、分布及用途。为保护和发展该地区木兰科植物资源 ,满足沿海各地园林、医药等部门需求提供科学依据。  相似文献   
347.
Abstract

Abstract Water resources in dryland areas are often provided by numerous surface reservoirs. As a basis for securing future water supply, the dynamics of reservoir systems need to be simulated for large river basins, accounting for environmental change and an increasing water demand. For the State of Ceará in semiarid Northeast Brazil, with several thousands of reservoirs, a simple deterministic water balance model is presented. Within a cascade-type approach, the reservoirs are grouped into six classes according to storage capacity, rules for flow routing between reservoirs of different size are defined, and water withdrawal and return flow due to human water use is accounted for. While large uncertainties in model applications exist, particularly in terms of reservoir operation rules, model validation against observed reservoir storage volumes shows that the approach is a reasonable simplification to assess surface water availability in large river basins. The results demonstrate the large impact of reservoir storage on downstream flow and stress the need for a coupled simulation of runoff generation, network redistribution and water use.  相似文献   
348.
人类活动造成的CO2排放是全球气候变暖面临的主要挑战之一。CO2封存有望成为全世界减少碳排放份额最大的单项技术。海洋碳捕获、利用和封存(OCCUS)可以在较短时间内提供最大的碳封存能力,与其他地质封存方法相比更加安全有效。而且,多相态形式的CO2(气态、液态、固态和水合物)可以在海洋纵深尺度上实现直接注入。海洋碳封存是一项发展潜力巨大、优势明显的新兴碳封存技术,是实现大规模碳减排的重要措施之一,具有广阔的应用前景。因此,笔者等系统地阐述了海洋CO2直接注入、封存(OCS)的基本原理、技术现状、监测与评估,以及环境方面的影响,并对高效CO2注入技术,CO2泄漏的检测、防范与补救技术,以及海洋碳封存的生态后效等方面进行了展望。  相似文献   
349.
Mexico is relatively advanced in its preparation for international policy on Reduced Emissions from Deforestation and forest Degradation (REDD+) and has many of the pre-conditions needed to support a community approach in the implementation of a national REDD+ programme, particularly as regards tenure of forests and experience with community forest management and PES schemes, although these conditions do not pertain everywhere. One critical issue that is yet to be resolved concerns rights to carbon credits and distribution of the financial benefits flowing from REDD+. We demonstrate that attribution of carbon credits from reduced deforestation and degradation at the community level is virtually impossible from a technical viewpoint, since these credits are counterfactual. Payments based on assessment of performance of each community in terms of such reductions would moreover be inequitable and inefficient. Flat rate payments in return for agreed improvements in management are likely to be more motivating and much easier to administer. However, increases in carbon stock (forest enhancement) can be physically measured on site, and could be more easily attributed to each individual community. We therefore propose a system in which reduced deforestation and degradation are considered environmental services, with credits accruing to national government. The financial value of the credits may be used to finance flat rate payments to communities who agree to implement improved management. On the other hand, credits for forest enhancement, which reflect measurable increases in carbon in the communities’ trees, would be considered environmental goods. These should be considered the direct property of the owners of the forest (in the same sense as wood or poles) and it would be possible for communities to sell these credits themselves. We acknowledge however that many other problems face implementation of REDD+ in Mexico, and provide a number of important examples.  相似文献   
350.
In the Pacific Northwest, residents are mobilizing to prevent the coastal export of fossil fuels and protect unique ecosystems and place-based communities. This paper examines the diverse groups, largely from the Bellingham area, and how they succeeded in blocking construction of what was to be the largest coal-shipping port in North America, the Gateway Pacific Terminal (GPT). Tribes, environmental organizations, faith-based groups, and other citizen groups used a multitude of approaches to prevent development, both independently and in concert. This paper reviews the various ways in which the groups collaborated and supported one another to resist the neoliberalization of the coast and support local sovereignty, unique ecosystems, and place-based communities. Groups like Power Past Coal, Protect Whatcom, and Coal-Free Bellingham fought for important and protective changes and evidenced communitywide political support, but the sovereign rights of the Lummi Nation were the legal bar to constructing the coal terminal.  相似文献   
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