山海关海岸带盐生种子植物调查及生态应用探讨

对山海关滨海盐生植物及盐生植被景观和群落配置情况进行实地调查并参考历史文献,发现山海关滨海湿地共有盐生种子植物26科44属51种。结合山海关海岸带的气候、土壤理化性质及土地覆盖和利用的现状,选择乔、灌木类盐生植物3种,藤本类盐生植物1种,中生草本盐生植物5种,旱生草本盐生植物2种,湿生植物4种,共计15种作为滨海地区盐碱地改良和植被恢复的野生植物种类。     

Facilitating and evaluating public participation in urban parks management

Active citizen involvement is driven by assumptions about inclusivity, equity and fairness and as such is part of an agenda for devolving power, largely from local authorities to individual persons or groups. Few theorists and practitioners doubt the benefits of such deliberative involvement but there is, as yet, little guidance on how to initiate, establish and support individual groups, nor how to evaluate their processes and outcomes. This lack of guidance often leads to groups being inadequately or inappropriately supported which, consequently, reduces their ability to engage in the very local political processes that they were initiated to address. This paper offers a new approach to the creation and support of such groups and outlines the design of two participation evaluation matrices, one to monitor the process and one to evaluate the outcome of the participatory exercise, providing a valuable feed-back tool for participants and facilitators. The paper concludes that it is important to have the financial commitment and willingness of the local authority to recognise public involvement as an educative process, to empower people and to allow groups to develop and own their achievements.     

Ten common mistakes in designing biodiversity indicators for forest policy

This paper identifies 10 common 'mistakes' in developing and using forest biodiversity indicators from the standpoint of making better forest management choices. The mistakes relate to a failure to clarify the values-basis for indicator selection and a failure to integrate science and values to design indicators that are concise, relevant and meaningful to decision makers. The combined effects of these ten mistakes include inconsistent and indefensible on-ground management strategies and hidden trade-offs at a policy level. They result in frustrated professionals, a confused public, an inability to assess performance with respect to key forest policy objectives and, almost certainly, types and amounts of biodiversity conservation that fail to achieve either scientifically or socially preferred levels. Correcting the mistakes will help to address these problems and, more generally, recognizes the need to better understand the interface between science, public values, and decision making.     

Facilitating and evaluating public participation in urban parks management

Active citizen involvement is driven by assumptions about inclusivity, equity and fairness and as such is part of an agenda for devolving power, largely from local authorities to individual persons or groups. Few theorists and practitioners doubt the benefits of such deliberative involvement but there is, as yet, little guidance on how to initiate, establish and support individual groups, nor how to evaluate their processes and outcomes. This lack of guidance often leads to groups being inadequately or inappropriately supported which, consequently, reduces their ability to engage in the very local political processes that they were initiated to address. This paper offers a new approach to the creation and support of such groups and outlines the design of two participation evaluation matrices, one to monitor the process and one to evaluate the outcome of the participatory exercise, providing a valuable feed-back tool for participants and facilitators. The paper concludes that it is important to have the financial commitment and willingness of the local authority to recognise public involvement as an educative process, to empower people and to allow groups to develop and own their achievements.     

土壤镉污染调查研究

本文阐述了重金属镉对植物和人体危害的机理，描述了土壤镉的主要来源，并开展了城郊及矿山周围土壤镉污染现状调查。调查结果提醒人们提高土壤质量意识，重视土壤镉污染并进行土壤修复，保护生态环境、实现农业的可持续发展。     

对加快推进我国矿山生态修复的思考

绿色矿山建设是矿业领域践行"绿水青山就是金山银山"的重要体现。本文从矿山生态修复的内涵到外延，从问题识别到任务措施，从单一治理修复目标到生态系统功能修复目标，从矿山生态修复系统到与经济社会发展系统相结合等多个方面，系统地梳理矿山生态修复的解决路径，围绕矿业绿色发展提出一系列建议。     

From land cover change to land function dynamics: a major challenge to improve land characterization

Land cover change has always had a central role in land change science. This central role is largely the result of the possibilities to map and characterize land cover based on observations and remote sensing. This paper argues that more attention should be given to land use and land functions and linkages between these. Consideration of land functions that provide a wide range of goods and services makes more integrated assessments of land change possible. The increasing attention to multifunctional land use is another incentive to develop methods to assess changes in land functions. A number of methods to quantify and map the spatial extent of land use and land functions are discussed and the implications for modeling are identified based on recent model approaches in land change science. The mixed use of land cover, land use and land function in maps and models leads to inconsistencies in land change assessments. Explicit attention to the non-linear relations between land cover, land use and land function is essential to consistently address land change. New methods to map and quantify land function dynamics will enhance our ability to understand and model land system change and adequately inform policies and planning.     

Privatizing the minerals sector

The end of the Cold War presents new challenges for the dynamics associated with mineral resources development. Broader approaches are needed to help mineral rich developing countries develop their minerals sector. These countries need to embark upon programmes of policy reform and privatization in order to make their mineral resources industries more efficient and responsive to free market forces (such as supply and demand and price), and to turn mineral sector decision making over to the private sector. This article examines the use of policy reform and privatization strategies to increase mineral resource production in developing countries, thereby contributing to both developing country economic growth and developed country access to mineral supplies .     

生态执政能力建设初探

探讨了生态执政能力建设的重要性及其内涵,认为生态执政能力是一个政党应对环境问题的能力,关系到政治、经济、文化、社会和生态安全等方面能否持续发展。生态执政能力的内容包括制定符合生态规律和环境保护要求的路线、方针政策的能力;领导制定和实施环境保护法律、法规的能力;动员和组织政党成员及国民学习和实践环境保护知识、理念、行为和规范的能力;领导国民建设生态文明、生态文化的能力;领导国民和教育国民选择、建设可持续发展的经济模式的能力。     

Applying tqm to environmental site assessments under the astm standard

Total Quality Management was initially developed to facilitate an ethos of continuous improvement of the production process. It entails both an internal and external focus. The former depends on a cooperative effort among employees at all levels of the organization to analyze work processes, minimize process variance, and thereby maximize productivity. The latter requires close collaboration with suppliers to ensure that raw or processed materials can be readily and efficiently integrated into the production process and constant communication with the end user—the customer—to ensure that the process generates the expected level of quality. Applying TQM to service industry processes is a bit more complex. In addition to having to tailor the TQM approach to the specific service industry, the processes are seldom identical and tend not to lend themselves to the same type of statistical variance analysis that is considered a hallmark of TQM. Nevertheless, numerous case studies have shown that TQM is applicable to the service industry and can help to generate a culture of continuous improvement and enhance customer satisfaction. Environmental site assessments provide a unique challenge to proponents of TQM. Construction, geological, and hydrological characteristics are unique at each site; regulatory requirements differ by jurisdiction; access to historical information is inconsistent; auditors have varying backgrounds; and client needs and expectations differ. Nevertheless, as the American Society for Testing and Materials (ASTM) standard practice gains acceptance as a benchmark for environmental site assessments, the application of TQM practices to this service process becomes more practicable.     

Understanding farmer intentions to connect to a modernised delivery system in an Australian irrigation district: a reasoned action approach

Australian governments have sought to invest in irrigation infrastructure to improve the efficiency of water delivery to rural properties and improve water supply and on-farm efficiency. A programme of rationalising irrigation infrastructure has attracted criticism and doubts about its likely success. Attitude theory in the form of the Reasoned Action Model was applied to understand the intentions of landowners to connect to a ‘modernised’ irrigation system. Attitudes towards connecting to the system, social norms and perceptions of control over the behaviour provided an explanation of intentions to connect. Actual financial capability and other variables were important in discriminating a group of landowners who had already connected to the modernised system from farmers who had not.     

Relationships between soil and runoff phosphorus in small Alberta watersheds

Field-scale relationships between soil test phosphorus (STP) and flow-weighted mean concentrations (FWMCs) of dissolved reactive phosphorus (DRP) and total phosphorus (TP) in runoff are essential for modeling phosphorus losses, but are lacking. The objectives of this study were (i) to determine the relationships between soil phosphorus (STP and degree of phosphorus saturation (DPS)) and runoff phosphorus (TP and DRP) from field-sized catchments under spring snowmelt and summer rainfall conditions, and (ii) to determine whether a variety of depths and spatial representations of STP improved the prediction of phosphorus losses. Runoff was monitored from eight field-scale microwatersheds (2 to 248 ha) for 3 yr. Soil test phosphorus was determined for three layers (0 to 2.5 cm, 0 to 5 cm, and 0 to 15 cm) in spring and fall and the DPS was determined for the surface layer. Average STP (0 to 15 cm) ranged from 3 to 512 mg kg(-1), and DPS (0 to 2.5 cm) ranged from 5 to 91%. Seasonal FWMCs ranged from 0.01 to 7.4 mg L(-1) DRP and from 0.1 to 8.0 mg L(-1) TP. Strong linear relationships (r2=0.87 to 0.89) were found between the site mean STP and the FWMCs of DRP and TP. The relationships had similar extraction coefficients, intercepts, and predictive power among all three soil layers. Extraction coefficients (0.013 to 0.014) were similar to those reported for other Alberta studies, but were greater than those reported for rainfall simulation studies. The curvilinear DPS relationship showed similar predictive ability to STP. The field-scale STP relationships derived from natural conditions in this study should provide the basis for modeling phosphorus in Alberta.     

SOUND POLICY OR SMOKE AND MIRRORS: DOES ECOSYSTEM MANAGEMENT MAKE SENSE?1

ABSTRACT: Protection of ecosystems as entities on the landscape has attracted a wide range of support. Ecosystem-based public policies are claimed to be more effective, efficient, and scientifically sound than other approaches to environmental and natural resource policy. The ecosystem concept was never intended to serve as a public policy guide or to determine landscape units for land management purposes. This paper critically examines the use of the ecosystem concept in public policy and land use management and analyzes the proposed rule to manage the National Forest System according to ecosystem management principles. The concept is found to be unsuitable as a basis for guiding environmental and natural resource public policies in general while the proposed rule to manage the national forests according to ecosystem management principles is shown to be incoherent.     

Improving public access to environmental information in China

Providing public access to environmental information is a relatively new approach to environmental management that can improve the quality of environmental decision-making and pollution control. China is currently exploring ways to disclose this environmental information, and has found that many aspects of providing environmental information need to be improved. In particular, work still needs to be done to strengthen the laws and regulations that govern public access to environmental information, to expand environmental disclosure among enterprises, to increase disclosure of environmental information in rural areas and enforce the collection of this information, and to investigate and manage environmental information. In this paper, we review the current situation in China, discuss the problems related to this situation, and present recommendations for improvement.     

MEB's university-community partnerships foster new environmental leaders for business

As our society's environmental concerns have grown over the past 20 years, U.S. firms have struggled to find effective and inexpensive ways to meet their mushrooming environmental obligations. Many firms, recognizing the competitive advantages to be won through adroit environmental management, have begun to seek managers trained to deal with these issues. The corporate response has been hobbled by business schools'general failure to train managers to deal with crossfunctional issues, and by a specific failure to address environmental management in their curricula. In this article, the Management Institute for Environment and Business, a program of the World Resources Institute (WRI), describes its innovative University-Community Partnerships (UCP) project to address these shortcomings. Bringing new approaches and new thinking to management curricula, MEB and several like-minded organizations are breathing new life into the old MBA programs.     

Women and energy resources management

Women need access to energy resources in order to meet their basic needs for food, shelter, clean water, health care and employment and to improve their family's living conditions. Due to population growth and economic development the demand for the main energy sources in low-income rural areas, biomass, is far greater than the supply, and women have no choice but to overexploit the increasingly scarce resources just to survive. Improvements in energy efficiency and an increased use of renewable energy sources could help women to balance their immediate livelihood needs and the long-term ecological needs. However, women generally lack access to these improved energy technologies. This article explores the causes of women's limited access to improved energy technologies and why energy polices and programmes often fail to address women's specific needs and concerns. Strategies of the United Nations Development Fund for Women (UNIFEM) are outlined as examples of approaches aiming at improving women's access to information and sustainable technologies and promoting women's full participation in environmental decision and policy making.     

WATERSHED BASED,INSTITUTIONAL APPROACH TO DEVELOPING CLEAN WATER RESOURCES1

ABSTRACT: Access to clean and sufficient amounts of water is a critical problem in many countries. A watershed approach is vital in understanding pollution pathways affecting water resources and in developing participatory solutions. Such integration of information with participatory approaches can lead to more sustainable solutions than traditional “crisis‐to‐crisis” management approaches. This study aims at applying a watershed based joint action approach to manage water resources. Since most watersheds have urban and rural sources of pollution and a wide disparity in access to and use of water, alternative solutions need to take an integrated approach through cooperative actions. An institutional model was applied to seven subwatersheds in Honduras to evaluate various sources and effects of water contamination and water shortages. Two specific pathways of water resources degradation were studied (contamination from coffee pulp manufacturing and urban nonpoint sources) to develop alternative solutions that mitigate downstream impacts of access to clean water. A locally driven joint mechanism to reuse coffee pulp in farming systems is proposed. Such an institutional solution can maximize benefits to both farms and the coffee pulp industry. A combination of education and investment in sanitary facilities in urbanizing areas is proposed to minimize urban sources of water contamination.     

Institutional frameworks to direct development and implementation of great lakes remedial action plans

Locally designed, institutional frameworks are being used to develop and implement remedial action plans (RAPs) to restore beneficial uses in 43 Great Lakes areas of concern. A 1993 Canada-United States roundtable was convened to learn from case studies and to develop recommendations regarding essential characteristics of RAP institutional frameworks, guidance to ensure linkages to other related plans, and ways of embracing new institutional frameworks from RAP development to implementation. Major roundtable recommendations are: (1) RAP institutional frameworks should be empowered to pursue their mission of restoring uses. Empowerment would be demonstrated by: a watershed focus, inclusive and shared decision-making, clear responsibilities and sufficient authority, creative funding capability, flexibility and continuity in the process, an iterative process of continuous improvement, and commitment to education and outreach. (2) RAP institutional frameworks should be used as mechanisms to coordinate programs at the local level. Such local coordination should be complemented with governmental commitments to intra- and interagency coordination in work plans. (3) RAP institutional frameworks can help build the capacity of governments to achieve their goals. Therefore, governments must adopt long-term, visionary goals and commit to a customer-driven RAP process of continuous improvement.     

Managing Endangered Species Within the Use–Preservation Paradox: The Florida Manatee (Trichechus manatus latirostris) as a Tourism Attraction

A significant challenge to wildlife managers in tourism settings is to provide visitors with opportunities to observe rare and endangered wildlife while simultaneously protecting the target species from deleterious impacts. Nearly 100,000 people annually visit Crystal River, Florida, USA to observe and swim with the Florida manatee, an endangered species. This research aimed to investigate and describe human-manatee interactions in a tourism context, to understand the salient issues related to such interactions as identified by stakeholders, and to recommend a course of action to address multiple interests in the planning and management of human-manatee interactions. Five issues were identified by all stakeholder groups: water quality, harassment, density and crowding, education, and enforcement. Currently, the U.S. Fish and Wildlife Service, which is responsible for manatee management, does not have mechanisms in place to manage the tourism component of the manatee encounter. Although a regulatory approach can be taken, a better approach would be to create an organization of tour operators to establish "best practices" that reflect the goal of the managing agency to enhance manatee protection (and thus ensure their livelihood) and to enhance the visitor experience.