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The Clean Water Act and Estuarian Habitat Restoration 《清洁水法》和河口生境恢复
Pub Date : 2009-08-20 DOI: 10.2139/ssrn.1458614
Richard F. Golen, A. Sulkowski
This paper will examine how habitat restoration, such as revitalizing shellfish beds and restoring wetlands, can be used as a way to clean estuarine waters from the effects of nitrogen pollution, and, in doing so, satisfy the statutory requirements and policy intent of the Clean Water Act.The Clean Water Act (CWA) requires each state to produce a Total Maximum Daily Load (TMDL) report for bodies of water that are impacted by pollutants, as well as a remediation plan. This report begins by identifying a specific variety of pollution, the scale of the problem, and the extent to which the pollutants must be reduced. In addition, strategies are identified to accomplish the goal of pollutant reduction.Since the 1990s, research has demonstrated the ability of oysters and other shellfish to filter the water column and therefore remove the effects of over-nitrification in coastal and estuarine waters. Other research has shown that wetlands restoration can be used as a denitrification tool as well. Both of these strategies use natural processes and have the benefits of not only removing nitrogen and its effects but also can provide benefits such as stimulating the regrowth of valuable eelgrass beds and revitalizing finfish populations and crustacean nurseries. Both have the ultimate effect of providing not only clearer estuarine waters but a potential source of sustainable food stocks.This paper discusses the feasibility of using shellfish and wetlands restoration as an integral part of an overall strategy for the removal of the effects of over-nitrification of estuarine waters in the Total Management Daily Load process and argues that these tools meet both the statutory requirements CWA and its policy objectives of restoring water quality.
本文将探讨如何利用栖息地恢复,如活化贝类床和恢复湿地,来清洁河口水域,使其免受氮污染的影响,并在此过程中满足《清洁水法》的法定要求和政策意图。《清洁水法》(CWA)要求每个州为受污染物影响的水体提供一份总最大日负荷(TMDL)报告,以及一份补救计划。这份报告首先确定了污染的具体种类,问题的规模,以及必须减少污染物的程度。此外,还确定了实现减少污染物目标的策略。自20世纪90年代以来,研究已经证明了牡蛎和其他贝类过滤水体的能力,从而消除了沿海和河口水域过度硝化的影响。其他研究表明,湿地恢复也可以用作反硝化工具。这两种策略都使用自然过程,不仅可以去除氮及其影响,而且还可以提供诸如刺激有价值的鳗草床的再生和振兴鱼类种群和甲壳类苗圃等益处。两者的最终效果不仅是提供更清澈的河口水,而且是可持续粮食储备的潜在来源。本文讨论了将贝类和湿地恢复作为消除总管理日负荷过程中河口水域过度硝化影响的整体战略的一个组成部分的可行性,并认为这些工具既符合中国水务局的法定要求,也符合其恢复水质的政策目标。
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引用次数: 0
Conservation Easements: Pluses and Pitfalls, Generally and for Municipalities 保护地役权:优点和缺陷,一般和市政当局
Pub Date : 2009-06-01 DOI: 10.29173/ALR221
Arlene J. Kwasniak
This article examines the role of conservation easements in Canada and their utility in protecting the natural values of land by way of restricted development. The author begins with an overview of both common law and statutory conservation easements throughout Canada with a specific focus on Alberta. Advantages and disadvantages are identified in general with regard to the use of conservation easements by municipalities. Finally, the article locates and explores the benefits of conservation easements as a proactive pre-development, and reactive post-development tool which can be used by municipalities when carrying out land use mandates.
本文考察了保护地役权在加拿大的作用及其通过限制开发保护土地自然价值的效用。作者首先概述了加拿大各地的普通法和法定保护地役权,并特别关注艾伯塔省。总体上确定了市政当局使用保护地役权的利弊。最后,本文定位并探讨了地役权作为一种主动的开发前工具和被动的开发后工具的好处,市政当局在执行土地使用任务时可以使用地役权。
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引用次数: 3
Forest Products as Safety Net, Deforestation and the Tragedy of the Commons 林产品作为安全网,森林砍伐和公地悲剧
Pub Date : 2009-03-26 DOI: 10.2139/ssrn.1368683
P. Delacote
Non-timber forest product (NTFP) are commonly used by poor agricultural house-holds of developing countries to smooth their consumption and to cope with agricultural risk. This paper explores the potential implications of this safety-net use on the land-use choice and labor allocation. We consider that the land-use is a long-run choice variable, while labor allocation is a short-term choice variable. In this context, it appears that risk reduction may have two opposite implications. In the short run, risk reduction tends to reduce the pressure on common resource extraction, while in the long run, risk reduction may tend to increase deforestation.
发展中国家的贫困农户通常使用非木材林产品来平稳消费和应对农业风险。本文探讨了这种社会保障网络的使用对土地使用选择和劳动力配置的潜在影响。我们认为土地利用是一个长期选择变量,而劳动力配置是一个短期选择变量。在这种情况下,减少风险似乎有两个相反的含义。从短期来看,减少风险往往会减少对共同资源开采的压力,而从长期来看,减少风险可能会增加森林砍伐。
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引用次数: 5
Environmental Flows in the Rocky Mountain West: A Progress Report 落基山脉西部的环境流动:进展报告
Pub Date : 2009-01-01 DOI: 10.2139/SSRN.2691081
Lawrence J. Macdonnell
This paper provides a progress report on state laws and programs for protecting environmental flows of water in the states of the Rocky Mountain West. Included are the programs in Idaho, Montana, Wyoming, Utah, Colorado, New Mexico, and Arizona.
本文提供了一份关于保护落基山脉西部各州环境水流的州法律和计划的进展报告。其中包括爱达荷州、蒙大拿州、怀俄明州、犹他州、科罗拉多州、新墨西哥州和亚利桑那州的项目。
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引用次数: 13
In the Name of Development 以发展的名义
Pub Date : 2008-06-01 DOI: 10.2139/ssrn.3105754
J. Dey
A critical analysis of the mineral development agreement between the Republic of Liberia & Mittal Steel Holding Ltd.
对利比里亚共和国与米塔尔钢铁控股有限公司矿产开发协议的批判性分析。
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引用次数: 5
'Preface to' Bridges Over Water: Understanding Transboundary Water Conflict, Negotiation and Cooperation 《水上之桥:理解跨界水资源冲突、谈判与合作》的序言
Pub Date : 2007-10-22 DOI: 10.1142/6184
A. Dinar, Shlomi Dinar, S. Mccaffrey, D. McKinney
Bridges over Water places the study of transboundary water conflicts, negotiation, and cooperation in the context of various disciplines, such as international relations, international law, international negotiations, and economics. It demonstrates their application, using various quantitative approaches, such as river basin modeling, quantitative negotiation theory, and game theory. Case-studies of particular transboundary river basins, lakes, and aquifers are also considered. This second edition updates the literature on international water and in-depth analyses on political developments and cooperation between riparian states. With an appended chapter on principles and practices of negotiation, and a new case study on the La Plata Basin, this edition is a timely update to the field of transboundary water studies. Contents: Introduction: State of Water and Interstate Water Relations Overview of Literature on Conflict Negotiation and Cooperation Over Shared Waters The Development and Application of International Water Law Principles and Practices of Cooperation in Managing International Water Cooperative Game Theory and Water Resources: Principles Cooperative Game Theory and Water Resources: Application of Solution Concepts Principles and Practices of Negotiation: A Quantitative Approach Hydropolitics and International Relations An Overview of Selected International Water Treaties in Their Geographic and Political Contexts Global Analysis of International Water Agreements The Use of River Basin Modeling as a Tool to Assess Conflict and Potential Cooperation Conclusion Case Studies: The Mekong River Basin The Ganges Basin (With Focus on India and Bangledesh) The Indus River Basin The Aral Sea Basin The La Plata River Basin Annexes: The Generica: An Outline for Preparing a Basin Case Study River Basin Cooperative Game Theory Example Readership: Graduates in economics, engineering, water law, international relations and practitioners in water resource management, international water law and water policies. Key Features: An original textbook that combines several disciplines that together allow understanding and analyzing of conflict, negotiation and cooperation in transboundary water A balanced set of conceptual approaches and case studies from all over the world Supplementary material include: a computer program that allows users to practice various concepts of cooperation, demonstrating them via quantitative examples and outcomes, various annexes of treaties Each chapter includes sections on chapter objectives; glossary of main terminology; summary; practice questions; and list of recommended readings
《水上桥梁》将跨界水冲突、谈判和合作置于国际关系、国际法、国际谈判和经济学等不同学科的背景下进行研究。它展示了它们的应用,使用各种定量方法,如流域建模,定量谈判理论和博弈论。还考虑了对特定跨界河流流域、湖泊和含水层的个案研究。这第二版更新了关于国际水的文献,并深入分析了政治发展和沿岸国家之间的合作。随附关于谈判原则和实践的一章,以及关于拉普拉塔盆地的新案例研究,这一版是跨界水研究领域的及时更新。内容:导论:水与国家间水关系现状国际水法发展与应用国际水管理合作原则与实践合作博弈论与水资源原则合作博弈论与水资源解决方案概念的应用谈判原则与实践定量分析水文政治与国际关系国际水条约在地理和政治背景下的概述国际水协定的全球分析利用流域建模作为评估冲突和潜在合作的工具总结案例研究:湄公河流域恒河流域(以印度和孟加拉国为重点)印度河流域咸海流域拉普拉塔河流域附件:属类读者对象:经济学、工程学、水法、国际关系专业毕业生,以及从事水资源管理、国际水法和水政策的从业人员。主要特点:这是一本结合了多个学科的原创教科书,可以理解和分析跨界水的冲突、谈判和合作。一套平衡的概念方法和来自世界各地的案例研究。补充材料包括:一个允许用户练习各种合作概念的计算机程序,通过定量的例子和结果来展示它们,条约的各种附件每章包括关于章节目标的部分;主要术语词汇;总结;实践问题;以及推荐阅读书目
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引用次数: 74
The Private and Public Insurance Value of Conservative Biodiversity Management 生物多样性保守管理的公私保险价值
Pub Date : 2006-10-01 DOI: 10.2139/ssrn.892101
Stefan Baumgärtner, M. Quaas
The ecological literature suggests that biodiversity reduces the variance of ecosystem services. Thus, conservative biodiversity management has an insurance value to risk-averse users of ecosystem services. We analyze a conceptual ecological-economic model in which such management measures generate a private benefit and, via ecosystem processes at higher hierarchical levels, a positive externality on other ecosystem users. We find that ecosystem management and environmental policy depend on the extent of uncertainty and risk-aversion as follows: (i) Individual effort to improve ecosystem quality unambiguously increases. The free-rider problem may decrease or increase, depending on the characteristics of the ecosystem and its management; in particular, (ii) the size of the externality may decrease or increase, depending on how individual and aggregate management effort influence biodiversity; and (iii) the welfare loss due to free-riding may decrease or increase, depending on how biodiversity influences ecosystem service provision.
生态学文献表明,生物多样性降低了生态系统服务的多样性。因此,保守的生物多样性管理对生态系统服务的风险规避用户具有保险价值。我们分析了一个概念性的生态经济模型,在这个模型中,这些管理措施产生了私人利益,并通过更高层次的生态系统过程,对其他生态系统用户产生了积极的外部性。我们发现,生态系统管理和环境政策取决于不确定性和风险规避的程度:(i)个人改善生态系统质量的努力明显增加。搭便车问题可能会减少或增加,这取决于生态系统及其管理的特点;特别是,(ii)外部性的大小可能减少或增加,这取决于个别和总体管理努力如何影响生物多样性;(三)搭便车造成的福利损失可能减少或增加,这取决于生物多样性对生态系统服务提供的影响。
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引用次数: 28
Economic Incentives and Poaching of the One-Horned Indian Rhinoceros in Nepal: Simulation Modelling of Policies to Combat the Poaching of Rhino in Royal Chitwan National Park, Nepal 经济激励和尼泊尔独角印度犀牛的偷猎:尼泊尔皇家奇旺国家公园打击偷猎犀牛政策的模拟模型
Pub Date : 2005-06-23 DOI: 10.2139/ssrn.850166
D. Knowler, M. Poudyal
Abundant in the past, the one-horned rhinoceros that inhabits the low-lying Terai region of Nepal has come under pressure due to the loss of habitat and poaching. Efforts to protect the species continue to face considerable challenges, including: (i) economic constraints associated with protecting these species in one of the poorest countries in the world; and (ii) the ineffectiveness of current policies due to a number of socio-economic and political factors. This study models poaching behaviour to provide information about the effectiveness of current interventions and to simulate alternative policies. Our goal is to help design more effective policies to combat poaching, while at the same time ensuring that local livelihoods are supported. This study considers some salient features of the rhino conservation/poaching problem in Nepal, such as: rhino population dynamics, crop damage due to rhinos, park-community revenue sharing programmes, the collection of resources from the park, tourism employment, etc., when running a simulation model. Indeed, all of these factors were entered as sub-models within the overarching simulation model. The simulation model was run over a ten-year period from 2004-2013 (inclusive) for four policy scenarios. The current policy scenario represents the baseline and the three other hypothetical scenarios represent three distinct policy alternatives. The simulation results indicate that although a conventional conservation strategy, emphasising the role of anti-poaching units (APUs), is likely to increase the rhino population to a greater extent than the other strategies, it produces less overall benefits to local communities. Conversely, incentive-based conservation strategies that target farming and non-farming households through economic incentives (such as compensation for crop damage, increased employment opportunities, and greater access to park resources), along with some anti-poaching enforcement, are likely to increase the rhino population and at the same time produce greater overall benefits for local communities. It is inherently difficult to ensure all stakeholder groups simultaneously benefit from a single policy measure. However, the simulation results show that any policy that tries to incorporate the concerns of different stakeholders by providing different economic incentives is more likely to help protect rhinos, and at the same time improve local livelihoods.
由于栖息地的丧失和偷猎,生活在尼泊尔地势低洼的特莱地区的独角犀牛过去数量很多。保护该物种的努力继续面临相当大的挑战,包括:(i)在世界上最贫穷的国家之一保护这些物种所面临的经济限制;(ii)由于一些社会经济和政治因素,当前政策无效。本研究对偷猎行为进行建模,以提供有关当前干预措施有效性的信息,并模拟替代政策。我们的目标是帮助制定更有效的政策来打击偷猎,同时确保当地生计得到支持。在运行模拟模型时,本研究考虑了尼泊尔犀牛保护/偷猎问题的一些显著特征,例如:犀牛种群动态、犀牛造成的作物损害、公园-社区收入共享计划、公园资源收集、旅游业就业等。实际上,所有这些因素都是作为总体模拟模型中的子模型输入的。该模拟模型在2004年至2013年(含2013年)的十年间对四种政策情景进行了运行。当前的政策场景代表基线,其他三个假设场景代表三种不同的政策选择。模拟结果表明,尽管传统的保护策略,强调反偷猎单位(apu)的作用,可能比其他策略更大程度上增加犀牛种群,但它给当地社区带来的总体效益较小。相反,以激励为基础的保护策略,通过经济激励(如赔偿作物损失、增加就业机会和更多使用公园资源的机会),以及一些反偷猎执法,可能会增加犀牛数量,同时为当地社区带来更大的整体利益。从本质上讲,很难确保所有利益相关者群体同时从单一政策措施中受益。然而,模拟结果表明,任何试图通过提供不同的经济激励措施来纳入不同利益相关者关注的政策都更有可能有助于保护犀牛,同时改善当地的生计。
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引用次数: 2
Methods Of Forest Law-Making 森林立法的方法
Pub Date : 1995-08-01 DOI: 10.2139/SSRN.2352809
T. Lundmark
Within the United States, natural forestland is a precious and unique resource providing timber for construction and paper, a habitat for wildlife, as well as recreation areas and aesthetic value for visitors. The fact that a large portion of forestland in the United States is privately owned and not subject to uniform federal control exacerbates the potential conflict between each of these uses as well as the decision to convert forestland to farmland. This article reviews the development, goals, and various state legal instruments, or “methods,” of private forestland management that directly influence forested property in private ownership. The current state methods can be summarized as: (1) the prescription or regulation of forest practices by statutory and common law constructs; (2) the furnishing of incentives to encourage desirable behavior, and the assessment of charges to discourage undesirable behavior; and (3) the encouragement of voluntary measures that promote land-management practices preferred by the public. Through thorough, objective analysis of the benefits and drawbacks of each of these methods, the author judges the efficacy and likely future implementation of these methods by state legislators and regulators.Ownership of private commercial timberland can be categorized into three general groups: agriculture, wood industry, and other private owners. These three groups are quite disparate in their interests and practices. Legislation that attempts to control privately owned forestland primarily addresses the goal of promoting forest regeneration for sustained timber production. Additionally, it seeks to protect forestland resources, wildlife habitat, and soil and water quality. Finally, and most controversially, a recent trend is the recognition of recreation and aesthetics as legitimate goals of private forestland management legislation. However, upon analysis of the legislation from five states which explicitly include protection of forest aesthetic or recreational value as a legislative goal, as well as the law of Oregon which mentions aesthetics in the context of protecting scenic views from highways, it is clear that aesthetics are not given much protection in practice under such legislative schemes.Regulations are widespread, but certainly not uniform. They attempt to specify the uses a private owner may make of forestland without violating constitutional restrictions against the taking of private property without just compensation. Conflicting goals, differing agency structures, and changing political climates are disadvantages to the regulation method. As incentives are politically more palatable than direct regulation, they are often more readily enforceable, and therefore more efficient than direct regulation. Many states utilize a system of tax incentives to achieve a wide range of goals, and it is likely that – along with other forms of incentives – they will be used more often in the future. However, little use is m
在美国,天然林地是一种珍贵而独特的资源,为建筑和造纸提供木材,是野生动物的栖息地,也是休闲区和游客的审美价值。美国有很大一部分林地为私人所有,不受联邦政府的统一控制,这一事实加剧了每种用途之间的潜在冲突,也加剧了将林地转为农田的决定。本文回顾了私人林地管理的发展、目标和各种国家法律文书或“方法”,这些法律文书或“方法”直接影响私人所有制的森林财产。目前的国家方法可以概括为:(1)通过成文法和习惯法构建对森林实践的规定或规范;(2)提供激励以鼓励可取行为,并评估收费以阻止不良行为;(3)鼓励自愿采取措施,促进公众喜欢的土地管理做法。通过对每一种方法的利弊进行全面、客观的分析,作者判断了这些方法的有效性和未来可能由州立法机构和监管机构实施。私人商业林地的所有权可以分为三类:农业、木材工业和其他私人所有者。这三个群体的兴趣和做法完全不同。试图控制私人拥有林地的立法主要是为了实现促进森林再生以实现持续木材生产的目标。此外,它还寻求保护林地资源、野生动物栖息地以及土壤和水质。最后,也是最具争议的是,最近的一个趋势是承认娱乐和美学是私人林地管理立法的合法目标。然而,通过分析五个州明确将保护森林美学或娱乐价值作为立法目标的立法,以及俄勒冈州在保护公路风景的背景下提到美学的法律,可以看出,在这些立法方案下,美学在实践中并没有得到太多的保护。监管是广泛的,但肯定不是统一的。它们试图具体说明私人所有者在不违反宪法关于未经公正补偿而征用私有财产的限制的情况下可以使用林地的用途。冲突的目标、不同的机构结构和不断变化的政治气候是监管方法的缺点。由于激励在政治上比直接监管更受欢迎,它们往往更容易执行,因此比直接监管更有效。许多州利用税收激励制度来实现广泛的目标,而且很可能——连同其他形式的激励——它们将在未来被更频繁地使用。但是,很少使用使不受欢迎的活动更加困难或成本更高的抑制措施,例如环境费用。州立法机构有机会采用环境收费来阻止不受欢迎的活动,就像瓶子法案影响人们不要将瓶子丢弃到非回收设施一样。限制措施的好处包括更大的遵从性、管理便利性和效率。它们可以比目前的情况得到更有利的利用。自愿项目也可以非常有效,正如德国和丹麦积极的、主要是自愿的回收结果所证明的那样。有效的自愿项目的共同要素是:公众相信这些项目是值得的;处境相似的人之间的普遍服从;以及易于遵守。虽然不是私人林地管理的主要方法,但随着公众保护和维持环境的愿望增加,自愿遵守计划将来可能变得更加重要。
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引用次数: 1
Arctic Ocean Choke Points and the Law of the Sea 北冰洋咽喉要道与海洋法
Pub Date : 1900-01-01 DOI: 10.2139/SSRN.1697882
D. Rothwell
As the international law of the sea has developed throughout the centuries, and there has been a growing acceptance of the legitimacy of a range of maritime zones, there has been a need to provide certainty with respect to the freedom of navigation through certain waters. The initial focus was to assure freedom of navigation in the territorial sea, and this saw the gradual recognition of innocent passage which guaranteed rights of navigation by foreign-flagged vessels. The innocent passage regime developed alongside expanding claims by coastal states to a broader territorial sea, and as long as expansive claims to a territorial sea were kept under check significant disruption to maritime traffic through straits used by international navigation was minimised. However, as the territorial sea regime became more accepted as a part of customary international law, and then was recognised in the 1958 Geneva Convention on the Territorial Sea and Contiguous Zone, it was evident that the particular issues that arose concerning navigation through straits would have to be addressed.
随着国际海洋法在几个世纪以来的发展,以及人们日益接受一系列海洋区域的合法性,有必要对通过某些水域的航行自由提供确定性。最初的重点是确保领海的航行自由,这使人们逐渐承认无害通过,这保证了悬挂外国国旗的船只的航行权利。无害通行制度是在沿海国家不断扩大对更广泛领海的主权要求的同时发展起来的,只要对领海的扩张主张受到控制,通过国际航行所使用的海峡的海上交通受到的严重干扰就会被降到最低。然而,随着领海制度作为习惯国际法的一部分被越来越多地接受,然后在1958年《关于领海和毗连区的日内瓦公约》中得到承认,显然必须解决有关通过海峡航行的具体问题。
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引用次数: 0
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Natural Resources Law & Policy eJournal
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