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1.
资源环境承载能力评价是进行国土空间规划和用途管控的基础性工作,越来越受到国家重视。在资源环境承载能力研究实践中,以自然资源环境系统及其与社会经济系统的关系为主要研究对象,创新性提出了"资源环境承载协调理论",并基于此理论初步建立了不同空间尺度的地质资源环境承载能力评价技术方法,构建了地质环境、地下水资源、矿产资源等不同资源环境要素的承载能力评价指标体系,包括承载本底评价指标和承载状态评价指标。规范了不同尺度的资源与环境承载能力评价流程,为有序推动全国、区域及市县尺度的自然单元和行政单元的地质资源环境承载能力评价工作提供了强有力的。 相似文献
2.
D. Peptenatu Ph.D. R. D. Pintilii Ph.D. C. Draghici Ph.D. 《International Journal of Environmental Science and Technology》2011,8(4):737-746
Urban settlements of regional importance from Romania impose within the national settlements system by their ability to converge material and human flows, leading to important unbalances in the relationships between the components of territorial systems. The status they held, both in the communist period and at present, made the economic activities developed in a short time exceed the adapting ability of the other components of the territorial system, the natural environment strongly feeling the industrialisation pressure. Identifying the specificities of the environmental risk management at the level of development poles of regional importance was done by detailed analyses accomplished in Craiova, a representative town for the high concentration of economic activities strongly pressing upon the natural environment. The construction of the model of environmental risk management supposes the classifying of risks by a series of criteria, a model which constitutes a useful instrument for the decision factors. The management of unbalances from the territorial systems determined by industrialisation is one of the major preoccupations of the decision factors from Romania, in order to be aligned to the European environment standards. 相似文献
3.
B. B. Cruz L. A. Manfré D.S. Ricci D. Brunoro L. Appolinario Jr. J. A. Quintanilha 《Environmental Earth Sciences》2017,76(12):441
Water resources availability is increasingly constrained, considering the quality and quantity available for use. There is an urgent need of recovering this availability, focusing on the planning and management process of water supply systems. One of the main threats to water resources is related to erosion effects, namely widespread pollution load and the silting of watercourses and reservoirs useful life reduction. The objective of this study was to evaluate water supply systems environmental fragility within the Paulista Macro Metropolis area and to use the results to develop environmental zone classes to orient territorial planning. The study was conducted in seven superficial water supply systems of the aforementioned region. Environmental fragility evaluation was focused on four environmental variables that represent natural vulnerability to erosion, and 2015 land cover map to delineate human influence on erosive processes. Results indicate that Tietê River water supply systems, namely Piracicaba, Capivari and Jundiaí (PCJ) and Itupararanga systems, can be considered the most fragile water supply systems in the study area. The environmental fragility map was used to derive the environmental zoning map, including conservation and priority areas, suitable regions for agriculture expansion, and areas with high needs for restoration efforts. In addition, environmental fragility framework herein can be viewed as a model with high replication potential for regional planning and management in that land cover can be manipulated to minimize environment natural vulnerability, guiding territorial occupation toward a more sustainable landscape design, which subsidizes water resources multiple uses. 相似文献
4.
5.
《Geoforum》2016
The governance of labour in global production networks (GPNs) has become a critical area of concern amongst academics and policymakers alike. To date, GPN research has focused on the role of private company codes and multi-stakeholder ethical initiatives primarily driven by lead-firms. Other GPN studies highlight the critical role of civil society organisations (CSOs) in challenging lead-firm purchasing practices and shaping regulatory outcomes at local production sites. However, GPN research has not sufficiently incorporated the role of nation states in regulating work through legislative frameworks and enforcement regimes, often referred to in the literature as ‘state’ or ‘public’ governance. This is despite a ‘regulatory renaissance’ taking place across certain developing countries, seeking to strengthen their national regulatory labour institutions (Piore and Schrank, 2008:1).The GPN framework provides an analytical lens through which to conceptualise cross-cutting strands of trans-scalar governance regimes, involving complex networks of state, private and civil society actors operating at multiple scales. Notions of territorial and societal embeddedness are used to elucidate how global ethical standards derived from particular country contexts become enmeshed in national regulatory frameworks and local societal relations, shaping governance outcomes for precarious workers incorporated into GPNs. The paper draws attention to the ‘trans-scalar embeddedness’ of labour governance regimes which interact across geographical scales and, in the case of South African fruit, reflect a ‘trans-scalar governance deficit’ for precarious workers. It is argued that the influence of national regulatory regimes should be more fully incorporated into analytical frameworks for understanding governance outcomes in GPNs. 相似文献
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7.
Ambe J. Njoh 《GeoJournal》2007,70(2-3):109-120
Factors that influence the policy choices of forest and environmental policy-makers in developing countries are yet to be completely understood. The study reported in this paper seeks to contribute to efforts addressed to promoting knowledge of these factors. It does so by analyzing the forest and environmental policy and policy field of Cameroon. The field is shown to be crowded, involving entities and individuals with disparate goals. The state emerges as the most powerful stakeholder in the field. It is argued that despite their seemingly inconsistent and contradictory nature, major provisions of Cameroon’s forestry and environmental policy have a unified purpose, viz., to serve the interests of powerful domestic and international stakeholders. It is concluded that the interests of these stakeholders, rather than the country’s national development goals, constitute the major determinant of the policy choices of its forest and environmental policy-makers. 相似文献
8.
《Geoforum》2013
Mexico’s national payments for ecosystem services (PES) programs pay rural landholders for hydrological services, carbon sequestration, biodiversity conservation, and improvement of agroforestry systems. The intention of the programs’ initial funders and designers was to create a PES program that would introduce market efficiency into environmental policy and “green” the market by creating and recognizing the economic value of healthy ecosystems. This article traces the complex processes through which this ideal type conceptualization of market-efficient environmental policy was subverted and the practice altered to more closely fit national interests, rural realities and alternative conceptions of the ‘value’ of socio-nature. This article examines how the market-based notions of the programs’ designers were hybridized at four distinct sites of articulation: (1) the federal politics of poverty alleviation in Mexico; (2) rural social movements with distinct conceptualizations of ‘conservation’ and ‘development’; (3) the institutional and cultural context of the ecosystem services being commodified; and (4) the socio-natural knowledges and grounded practices of rural Mexico. This analysis is based on a multi-sited ethnography conducted with program participants, intermediary organizations, and designers. The article draws on a growing critical literature on market-based mechanisms and minutely examines the process through which the Mexican national PES program was altered at multiple scales and in multiple forms, from the rhetoric of political speeches to the specific elements of the policy’s design and from the theoretical tinkering of neoclassical economists to the quotidian practices of rural environmental managers. 相似文献
9.
《Geoforum》2018
The Sayan crossroads is a distinct cultural and economic region in the mountains of eastern Siberia. It spans three federal units in the Russian Federation: the national republics of Tyva (Todzha kozhuun) and Buryatia (Okinskii raion), as well as Irkutsk oblast (Tofalarskoe municipality). Attempts at integration by the state during the Soviet period and afterwards have privileged the construction of roads in a variety of forms to connect these areas economically with regional centers and, in turn, the rest of the country. Yet this process has been uneven and led to divergences in the economic regimes in each of the three regions that make up the crossroads. The evolution of subsistence economies, exploitation by extractive industries, and the development of tourism as an alternative source of income all differ across the three federal subunits. In turn, these divergences within the crossroads as a region point to variation in the condition of remoteness. Remoteness is an instance of relative immobility, determined by physical geography, environment, and ethnicity. And remoteness influences the function that roads play in integrating state spaces both economically and politically. In turn, this article argues for the foregrounding of the remote in the literature on mobilities in human geography, considering what the condition of remoteness allows for and forecloses in the articulation of state power and the integration of hard-to-reach areas. 相似文献
10.
David Correia 《Geoforum》2007,38(5):1040-1051
Recent research on environmental conflict in New Mexico has focused on racial and ethnic conflict between environmentalists and Hispanic loggers as a means to explain the trajectory of environmental struggle and the failure of Hispano/environmentalist coalitions opposing Forest Service management policies. This paper seeks to extend this explanation by considering the constraining role of federal legislation, institutional management and commercial resource exploitation that limited opportunities for Hispano/environmental collaborative challenges to federal resource management arrangements. I analyze the foundations of sustained yield forestry on the Carson National Forest in northern New Mexico though a focus on the legal construction of sustained yield policies and the practices of implementing sustained yield on the Vallecitos Federal Sustained Yield Unit, a special timber production sub-unit of the Carson. The paper illustrates how the deployment of sustained yield forestry in New Mexico produced not only conditions of production favorable to commercial timber operators, but also established a complex and contradictory regulatory environment that effectively constrained collaborative efforts between environmentalists and small-scale loggers in their efforts to construct alternative futures for resource management in the region. 相似文献
11.
Summary This workshop was primarily motivated by the goals of the International Decade for Natural Disaster Reduction (IDNDR), one of which is that each country should have a comprehensive national assessment of risks due to natural hazards by the year 2000. It was sponsored by the Environmental Adaptation Research Group (EARG) of Environment Canada, the International Partnerships of Environment Canada, the Geological Survey of Canada, Emergency Preparedness Canada and the Canadian National Committee of the IDNDR. The National Science Foundation of the U.S. and the Government of Mexico supported travel costs related to their delegates. The workshop dealt with both atmospheric hazards such as tornadoes and floods, and geological hazards such as earthquakes and landslides. Nine U.S., eight Mexican and 24 Canadian participants included academia, government and the private sector. Six projects were selected as being of joint interest to all three countries, with lead country and agencies identified for possible future cooperative work. 相似文献
12.
国家铀资源评价(NURE)计划实现了覆盖美国本土和阿拉斯加的1∶250000 NTMS图幅航空γ能谱测量和航磁测量,通过简要回顾该计划历程,重点针对NURE中航空地球物理勘查(航空γ能谱和航磁测量),讨论了航空地球物理勘查中测量技术、数据处理及解释方法等。NURE航空测量在铀矿勘查和辐射环境评价、洲际航空地球物理编图等领域发挥了巨大作用,产生了意义深远的影响。在总结NURE航空测量经验和做法的基础上,针对我国航空γ能谱测量勘查现状,建议从国家层面进行顶层设计,尽快实施我国陆域范围内的航空γ能谱和航磁框架性测量,实现对我国陆域航空γ能谱测量全覆盖,建设具有中国特色的航空γ能谱测量与监测体系。 相似文献
13.
国土空间生态保护与修复是实现美丽中国、关系中华民族永续发展的根本大计。本文采用文献资料综合分析法、系统回顾法、实证分析法、类比分析法、趋势外推法、政策环评等相结合的方法开展了一系列工作:从国家方略、顶层设计两个方面,梳理了国土空间生态保护与修复的脉络;从国土空间生态修复规划、技术路经与方法、野外台站和科研样地等角度,阐明了国土空间生态保护与修复研究的方法论;举例辨析了国土空间生态保护与修复的若干“伪生态”和“假技术问题”;指出了国土空间生态保护与修复发展的战略方针、战略目标、战略方向、战略原则、战略重点、战略对策;从生态保护与修复的重大科学问题和热点、语境分析、分区分类、差异化、生态补偿机制等5个方面,提出了助推中国国土空间生态保护与修复需要的科技支撑;讨论了“两屏三带”、科学推进生态修复,以及管理逻辑与技术逻辑融合问题。研究结果为破解国土空间“整体保护、系统修复与综合治理”过程中生态要素的综合性与管理事权的部门化、生态空间的连续性与区域的政区化、生态工程的长期性与行政管理的届次化三大矛盾,提供了科学依据。 相似文献
14.
《Geoforum》2017
This paper examines the variegated natures of (post-)neoliberal environmental governance in Latin America using environmental crisis as an entry point. It examines the institutional measures put forth by Ecuador’s government, in concert with other actors, to contain and manage the damaging effects of an insidious palm oil plant disease known as Pudrición del Cogollo (PC). Using empirical data collected through qualitative means, my analysis demonstrates that nature’s biophysical processes – in particular, disease ecologies – can play a crucial role in the pursuit and achievement of national accumulation goals. Specifically, I argue that the ecologies of the PC crisis have been rendered functional to the Ecuadorian government’s current political and economic strategies of intensified accumulation and market competitiveness. By making environmental crisis the basis of key accumulation strategies, the state is able to convert negative environmental outcomes into opportunities for profit-generation. Utilizing the notion of the ‘ecological fix’, this paper reveals two major conclusions: (1) plant health emergencies and the actions used to mitigate environmental crises are not only challenges but opportunities that can be mobilized to support further accumulation strategies and (2) the study of PC and Ecuador’s palm oil industry provides new fruitful terrain to examine the connections between the deepening variegated effects of neoliberalism through nature and environmental crisis solutions in Latin America. 相似文献
15.
国家资源环境安全的要素综合评价 总被引：10，自引：0，他引：10
资源环境安全问题始终是世界各国持续发展的核心任务和基本诉求。考虑到单要素和整体两大分析方法的不足，提出一种针对性很强的要素综合分析方法。根据世界上10个人口超过 1亿以上国家的抽样分析表明，土地、水资源、矿产及生态环境的整体状态是决定国家资源环境安全的基本所在。与此同时，为了改善国家，特别是发展中国家的
资源环境脆弱状态和提高其稳定程度，第一是要严格控制人口增长；第二是努力推进本国资源环境开发的国际化进程；第三是增大智力投入以提高资源深度化加工；第四是加大本国生态环境保护力度。 相似文献
16.
A new administrative-territorial system was introduced in Croatia in late 1992, after the country has passed through a tumultuous period and reached independence. The new internal territorial organization is a compromise between several different criterias. It reflects Croatia's position and geographic characteristics as well as the country's history and variety of traditional regions existing on those bases, but the most decisive was the functional principle. Counties, the first order units of the new division, are primarily functional regions of main centres. Beside counties, there is also a lower level of the division, namely municipalities created in predominantly rural areas and towns in more urbanized parts. The new civil division also provided a model of territorial autonomy for areas inhabited mostly by the Serbs, the second largest ethnic group in Croatia. For that purpose two districts with special status were proposed. 相似文献
17.
陆地表层地质环境质量综合评价与地质灾害系统分析——以广东沿海地带为例 总被引：3，自引：0，他引：3
将广东沿海陆地表层地质环境划分为构造稳定性、坡面稳定性和地基稳定性三个评价层面 ,其中包括由 9个指标构成的评价指标体系 ;确定了各指标的权重和五级分级标准和环境质量的五级标准 ;使用模糊数学综合评价模型将广东沿海 190个评价单元划分为 2 2个地质环境质量区。在灾害基本数据库和灾害时空分布分析的基础上 ,划分了 9个地质灾害一级分区及 32个二级分区 ,确定了地质环境、气候气象和人为活动因素三大类致灾主控因子 ;构造了三种地质灾害系统的概念模型和灾害预测指标体系框架 ,建立了地质灾害地理信息系统。 相似文献
18.
J. M. Rine R. C. Berg J. M. Shafer E. R. Covington J. K. Reed C. B. Bennett J. E. Trudnak 《Environmental Geology》1998,35(4):263-277
A methodology was developed to evaluate and map the contamination potential or aquifer sensitivity of the upper groundwater
flow system of a portion of the General Separations Area (GSA) at the Department of Energy's Savannah River Site (SRS) in
South Carolina. A Geographic Information System (GIS) was used to integrate diverse subsurface geologic data, soils data,
and hydrology utilizing a stack-unit mapping approach to construct mapping layers. This is the first time that such an approach
has been used to delineate the hydrogeology of a coastal plain environment. Unit surface elevation maps were constructed for
the tops of six Tertiary units derived from over 200 boring logs. Thickness or isopach maps were created for five hydrogeologic
units by differencing top and basal surface elevations. The geologic stack-unit map was created by stacking the five isopach
maps and adding codes for each stack-unit polygon. Stacked-units were rated according to their hydrogeologic properties and
ranked using a logarithmic approach (utility theory) to establish a contamination potential index. Colors were assigned to
help display relative importance of stacked-units in preventing or promoting transport of contaminants. The sensitivity assessment
included the effects of surface soils on contaminants which are particularly important for evaluating potential effects from
surface spills. Hydrogeologic/hydrologic factors did not exhibit sufficient spatial variation to warrant incorporation into
contamination potential assessment. Development of this contamination potential mapping system provides a useful tool for
site planners, environmental scientists, and regulatory agencies.
Received: 1 April 1997 · Accepted: 4 November 1997 相似文献
19.
The article draws a comparison between different ways of landslide geometry interpretation in the scope of the statistical
landslide hazard and risk assessment processing. The landslides are included as a major input variable, which are compared
with all of the input parametric factors. Based on the above comparison the input data are classified and the final map of
landslide susceptibility is constructed. Methodology of multivariate conditional analysis has been used for the construction
of final maps. Unique condition units was developed by combination of geological map (lithological units) and slope angle
map. Lithological units were derived from geological map and subsequently reclassified into 22 classes. Slope angle map was
calculated from digital elevation model (contour map at a scale 1:10,000) and reclassified into nine classes. As a case study,
a wide area of Horná Súča (western Slovakia) strongly affected by landsliding (predominantly made of Flysch) has been chosen.
Spatial data in the form of parametric maps, as well as final statistical data set were processed in GIS GRASS environment.
Four different approaches are used for landslides interpretation: (1) area of landslide body including accumulation zone,
(2) area of depletion zone, (3) lines of elongated main scarps, (4) lines of main scarp upper edge. For each approach, a zoning
map of landslide susceptibility was compiled and these were compared with each other. Depending on the interpretation approach,
the final susceptibility zones are markedly different (in tens of percent). 相似文献
20.
The role of economic sectoral structure in regional growth and development is widely acknowledged. However, there has been scarce reflection on its role as a policy instrument, particularly for peripheral regions. In reaction, this paper investigates the role of economic sectoral structure as a policy instrument towards more resilient peripheral regions. Through a multiple country policy analysis, the paper determines to what degree economic sectoral structure is reflected in regional development policies of 18 countries with predominantly rural characteristics and lagging regions. Moreover, the role of economic sectoral structure towards more resilient regions is quantified and measured for a specific peripheral region case in South Africa as developing country exhibiting poor economic resilience. The paper highlights related variety as a key ingredient for a region to reach a state of dynamic stability between adaptation and adaptability towards enhanced long-term resilience capacity of the peripheral region. The research concludes that policy focus should support the maintenance of the sectors and industries of comparative advantage on the regional scale, but strongly focus on sectoral comparative advantage within the national scale (if present) to establish a more robust region. This will establish and strengthen the identified peripheral growth centres as centres of national competitiveness and specialisation. Primary policy actions as emanated from the literature and the multiple country policy analysis will promote more efficient sectoral composition as key towards more resilient peripheral regions. It is acknowledged that these policy actions must be informed by a detailed regional economic analysis for different peripheral regions to determine inherent and latent economic potential and link with interdependent industries. This paper will highlight that regional policy should become more explicit by exploiting the role of economic and natural resources as growth engines for the peripheral regional economy in a more effective way through a multi-centred territorial structure.
相似文献