底泥的氮、磷释放及其微生物影响的研究

氮和磷在自然界的循环已经引起了人们的关注,一方面因为氮和磷是生态系统中必不可少的营养元素,另一方面过剩的氮和磷会导致水域的富营养化 ,从而使生态平衡遭受破坏.本文综述了水体沉积物中氮和磷受微生物作用进行释放的影响,以及国内外的研究历史和现状.总结了氮磷微生物代谢的特点,并阐述了与传统认识相区别的最新发现和思想.本文试图从理论上说明微生物的氮磷释放机理,通过生物化学和分子动力的角度解释了细菌对氮磷的吸收和释放,即质子动势理论和Pho调控理论.目前,这一领域研究的热点是为了特殊的使用用途对于高效微生物的分离鉴别和组合培养,和对氮磷代谢的影响因素.     

海南西部资源环境一体化研究

传统发展模式引发的资源环境问题迫使人类思考去寻求新的可持续的发展模式,资源环境一体化就是适应此背景的新兴发展理念。以海南西部沙地环境资源化与山区资源环境化的发展实践,实证分析了资源环境一体化的发展模式与发展机制。按资源与环境是可相互转化的这一资源环境一体化理论基础,海南西部干旱与多沙的环境可将其作为旅游资源进行开发,而针对山区资源过度利用的现状,则通过实施设立自然保护区、退耕还林、封山育林等措施实行保护性开发,实现山区资源环境化。重视环境与可持续发展思想、资源与环境的同源性与资源时效性、科学发展与技术进步、环境政策的完善与严格、政府与企业推进是促进资源环境一体化的主要推动机制。     

全面系统完善我国生态文明党内法规体系

生态文明党内法规是中国特色社会主义法治体系的重要组成部分。党的十八大以来,随着生态文明写入党章,生态文明专门党内法规及相关党内法规对生态文明的规定得到丰富和发展。但由于建设时间短,加上我国正处于经济社会发展的转型期,生态文明党内法规体系建设存在相关党内法规制定的规范性和权限的明确性不够、法规的系统性和体系的层次性不够、条文的清晰性和规范的可操作性不够、适用的涵盖性和内外的衔接性不够等问题。为此本文建议：(1)统筹规划,开展生态文明党内法规的系统性和规范性建设;(2)重点建设,分级分领域制修订生态文明建设和改革的专门党内法规;(3)全面融入,将生态文明的建设和改革要求分解到各级各类党内法规中;(4)厘清关系,加强与国家生态环保法律法规的衔接和协调。     

论生态环境保护督察制度的完善

推进生态环境保护督察往纵深方向发展需要完善生态环境保护督察制度。生态环境保护督察制度建设具备政治支持、实践基础和制度铺垫等条件。完善生态环境保护督察制度建设以习近平生态文明思想为根本遵循,坚持党的领导,突出问题导向,充分发扬民主。应当完善生态环境保护督察领导小组及其办公室、生态环境保护督察组、生态环境部及其区域督察局等生态环境保护督察主体制度,明确生态环境保护督察组享有检查权、处置权、请求协助权、交办权、督察情况述评权、问责建议权等。完善生态环境保护督察制度应当对地方党委、政府及有关部门、党政领导干部落实中央生态文明建设的决策部署、执行生态环境保护法律法规、履行生态环境保护职能等开展督察。生态环境保护督察可以采取集中督察、"回头看"督察、专项督察、常态督察等形式。除常态督察外,生态环境保护督察主要包括督察准备、督察进驻和进行、督察意见和整改、督察结束、督察后处理等环节。     

中央生态环境保护督察制度回顾与展望

中央生态环境保护督察是党中央、国务院推进生态文明建设和生态环境保护工作的重大制度创新。《中央生态环境保护督察工作规定》于近期正式出台,首次以党内法规形式明确了生态环境保护督察的制度框架、程序规范、权限责任等。从发展历程来看,我国生态环境保护督察大致经历了督企为主、督政督企并举、党政同责三个阶段。生态环境保护督察具有突出政治站位、压实责任,坚持问题导向、强化震慑,突出边督边改、取信于民等基本特征。为强化成果应用,全面准确把握当前我国生态环境保护工作的重点难点,本文设置7个一级指标和18个二级指标对首轮中央生态环境保护督察所指问题的分布特征进行统计分析,初步剖析问题产生原因,并从督察对象、督察内容和督察体制方面对第二轮中央生态环境保护督察进行了展望。     

生态环境科技成果转化顶层设计研究

生态环境科技成果转化是生态环境科技创新活动全过程的"最后一公里",决定着科技创新的成败,对打好污染防治攻坚战起着重要的支撑作用。本文依据成果转化法,按照系统工程方法进行生态环境科技成果转化顶层设计研究,界定了生态环境科技成果转化的内涵,系统提出了技术评估、二次开发、技术交易、产业孵化四环节转化内容,明晰了相关方的职责,分析了存在的问题,并提出相应对策,以期为我国的生态环境科技成果转化工作提供有益借鉴和参考。     

Land Degradation at the Stara Planina Ski Resort

The environmental impacts of ski resorts in the Balkan region are great and can lead to landscape degradation and loss of land functionality. In this study, we present an example of the negative effects of human activities at the Stara Planina ski resort in southeastern Serbia. The objective of this study is detailed analysis of the characteristics of environmental impacts at the Stara Planina. The management of the ski area and ski slope development caused severe degradation of topsoil and native vegetation. The morphological characteristics of the area, lithological properties of the exposed material and climate conditions resulted in various geomorphic impacts, including rills, deep gullies, solifluctions and debris from rock weathering. Significant changes in land usage altered hydrological conditions, resulting in more frequent torrential floods in the downstream sections of the Zubska River and increased the sediment yield. Environmental impacts were analyzed in the immediate and wider zones of the ski resort in accordance with the specific topography and visual exposure. The restoration and erosion control measures have stopped degradation processes and helped to rehabilitate the appearance and functions of the landscape. The results show the importance of considering lithological (the type and characteristics of minerals present) and hydrological (precipitation, water storage capacity of soil, runoff) factors under the conditions of significant changes in land usage. The results of this investigation can contribute to the improvement of planning processes and the implementation of development projects in ski areas.     

我国新时期生态保护修复总体战略与重大任务

生态保护修复是美丽中国建设的重大任务,是加快推进生态文明建设的优先行动,是推动生态产品价值实现的重要基础。近年来,我国生态保护修复取得显著进展,但生态系统本底脆弱、保护修复基础薄弱、管理机制不协调等问题依然突出。在大力推进生态文明建设的新的历史时期,面对百年未有之大变局,我国生态保护修复工作所面临的形势更加严峻,与实现国家生态治理体系和治理能力现代化的要求依然存在较大差距,尚难以满足人民日益增长的优质生态产品需要。本文在总结近年来我国生态保护修复主要进展基础上,分析了未来一段时期生态保护修复面临的问题与挑战,提出新时期生态保护修复应以习近平生态文明思想为统领,以提升生态系统服务功能、协同改善生态环境质量、维护国家生态安全为核心,探索构建生态保护修复与污染防治统筹推进机制,强化监管制度设计、示范样板引领、体制机制创新,加快实现山水林田湖草整体保护、系统修复、综合治理,筑牢美丽中国生态根基。     

基于三生空间生态服务供给和需求的国土空间规划效益评价研究

国土空间规划是统筹区域资源空间配置、开发管理和布局优化的总体方案,在引领区域协调发展上具有重要意义。国土空间规划必然导致土地利用类型及布局的改变,从而引起经济、社会、生态环境等方面的供给与需求变化。本研究从三生空间耦合协调的角度,通过生态系统服务和人类福祉需求的供需关系,揭示三生空间的供需连接与耦合关系。本研究借助 InVEST模型和生态服务价值当量法对生态系统服务供给与需求进行定量分析,同时引入耦合协调度模型与相对发展度模型,通过对生态系统服务供需变化进行耦合协调类型分析,探究国土空间用地结构调整所产生的供需间的协调关系,并用耦合协调状况对国土空间规划效益进行评价。研究发现,在规划期内宜宾市翠屏区生态系统服务供需总体耦合协调度呈现减小态势。2020-2035年耦合协调度从 0.60降低到 0.59,相对发展度由 1.05减小至 1.01。生态系统服务总体供给盈余明显,但由于供需分布空间差异,城镇地区为主要的供给赤字区域。影响生态系统服务需求的主要因素为环境净化需求,城市化指标对生态系统服务供需相对发展度具有较为普遍的负面影响。     

荷兰《环境与规划法》改革方向及其政策启示

荷兰《环境与规划法》着眼于可持续发展,以保障环境质量为核心,以政策循环为理论方法,以政策工具为手段,实现荷兰环境和规划领域的法典化,对于我国当前环境管理亟须解决的法规重叠、权力交叉、程序复杂等问题具有重要借鉴意义。本文在荷兰《环境与规划法》立法背景的基础上,梳理荷兰《环境与规划法》的改革方向,以期探究其对于我国构建和完善环境管理法律体系的政策启示:构建生态环境空间管控体系;运用政策循环和政策工具整合完善生态环境空间管控体系;深化简政放权,坚持放管并重;增强公众参与环境管理的主动意识。     

The role of symbolic capital in stakeholder disputes: decision-making concerning intractable wastes

This paper examines almost 30 years of disputation concerning the disposal of the world's largest stockpile of the toxic organochlorine, hexachlorbenzene. It describes the study of a chemicals company in its attempt to manage the disposal of the toxic waste in a collaborative fashion with government, environmentalists and the local community. The study describes the new processes and structures specifically designed to address the decision-making and the issues of stakeholder perception and identity construction which have influenced the outcomes. Decision-making in such disputes is often theorized from the perspective of the emergence of highly individualized and reflexive risk communities and changing modes and expectations of corporate responsibility as a result of detraditionalization. We argue that the stakeholder interaction in this study reflects competing discourses in which corporate actors prioritize the building and maintaining of identity and symbolic capital rather than an active collaboration to solve the ongoing issue of the waste. As well, issues of access to expert knowledge highlight the relationship between conditions of uncertainty, technoscientific expertise and identity. The events of the study highlight the challenges faced by contemporary technoscientific corporations such as chemicals companies as they must deliver on requirements of transparency and openness, while maintaining technoscientific capacity and strong internal identity. We conclude that the study demonstrates the co-existence of social processes of individualization and detraditionalization with quasi-traditions which maintain authority, thus challenging the radical distinctions made in the literature between modernity and late or reflexive modernity.     

袋式除尘器结构优化设计与虚拟装配关键技术

针对袋式除尘器大型化后在结构轻质化、模块化结构的可靠装配和焊接变形控制等方面面临的诸多问题,开展了系统的研究,发展了不同结构类型袋式除尘器快速参数化建模、整体和局部联合计算、梁柱连接节点的简化设计、整体计算中复杂花板结构简化、非线性多约束结构优化等复杂关键技术,开发了袋式除尘器结构计算和优化设计软件;提出了基于世界树的实体层次系统结构建模框架,开发了大型模块化袋式除尘器虚拟装配软件;分析了主要结构焊接变形、应力和应变分布及变化规律,提出了反变形法消除焊接变形的控制方法,并开展了实验验证。     

Analysis of Socioeconomic and Environmental Impacts of Waste Stabilization Pond and Unrestricted Wastewater Irrigation: Interface with Maintenance

The effluent from the waste stabilization ponds (WSPs) of the University of Nigeria, Nsukka Campus, is used for irrigation by poor rural farmers. There has been fear that the poorly maintained WSPs and the reuse practices are contributing to environmental degradation and health hazards. In this study the environmental and socioeconomic impacts of the WSPs and reuse were evaluated based on data collected from questionnaires and the literature. The engineering and agricultural properties of soil in the irrigated and nonirrigated areas were compared. Comparison of the health status of the farmers and nonfarmers, of consumers of crops irrigated with wastewater and nonconsumers was performed using Student's t test and the z-score test. The occurrences of diarrhea, typhoid fever, and malaria among the various groups were used as indices. Analyses show that the health status of the farmers and consumers is poorer than those of nonfarmers and nonconsumers at the 5% level of significance. Vegetable cultivation using WSP effluent is a means of sustenance to the farmers and provides an affordable means of satisfying their nutritional deficiencies. However, the poorly maintained WSPs create odor and mosquito nuisances, trap and destroy livestock, and flood nearby compounds with waste debris. At both 1% and 5% levels of significance, communities around the ponds (< 300 m) suffer malaria more frequently than those who live far away (> or = 300 m). Cost-benefit analysis argues in favor of improvement of WSP management and irrigation reuse of wastewater. Dredging of the ponds, training workers and farmers, and adopting appropriate maintenance and monitoring strategies will greatly enhance the socioeconomic status of the urban poor farmers.     

我国生活垃圾无害化向减量化处理处置转换路径探析

对比发达国家与发展中国家生活垃圾减量化处理处置经验，本文运用制度分析、统计分析等手段探究我国即将经历的生活垃圾减量化处理处置阶段转换问题。研究发现：①以政府公共投资和无害化处理处置为主要特征的生活垃圾处理处置I阶段解决垃圾围城的方式行将结束，减量化程度逐渐提高和社会资本的进入是II阶段的主要表现形式。②从我国生活垃圾处理处置的发展脉络看，促使I阶段向II阶段转化的主导因素包括城市化速度的加快、国家供给侧结构性改革促使源头减量和公共财政投入向市场投入转化等。③考虑到我国各地生活垃圾处理处置和经济发展实际，应改变现有生活垃圾处理处置管理体系，确立企业的源头减量主体地位；提高生活垃圾分类回收比例，改善中端减量化效率；以无废城市建设为契机，推进生活垃圾全域减量；重塑经济与发展的联系，借助市场化力量推进资源与经济增长联系从数量关系向强价格关系转化。     

Environmental planning and management for the Assarawat highland region of south-western Saudi Arabia: the traditional versus the professional approach

The environmental planning and management of the Assarawat highlands of south-western Saudi Arabia are currently confronted by difficult problems. Deforestation is caused either by natural or intentional forces. Natural factors are limited to lightning fire and drought, while intentional forces include vandalism caused by the burning or cutting of preserved forests. Such vandalism continues despite the tremendous efforts of afforestation and preservation by several government agencies, especially the Ministry of Agriculture and Water, the National Commission for Wildlife Conservation and Development and by the municipalities of the cities and towns in the region. For centuries, local inhabitants of the Assarawat highlands have successfully established environmental planning and management strategies which balanced the settlements' growth and natural resource uses according to Islamic laws, and the tribal self-government of each settlement and tribal region. Following the establishment of the Kingdom of Saudi Arabia in 1932, the land management system started to change from tribal-based, where every tribe used to manage its local territory, to State authority. The creation of the State witnessed the unification of various fragmented tribes of Saudi Arabia into one government. This meant that environmental planning and management moved from local/regional towards a national control. This investigation proposes that the local/regional planning and management practised by the tribes could be viably utilized today. As in the past, the implementation of these practices could protect the natural environment of the locality and region and regularize their exploitation rationally, as long as vernacular people implement them. Today environmental planning and management need to be based on strategies of local requirements that enable the indigenous people to plan and manage the use of the resources.     

瑞典畜禽养殖许可制度研究及其启示

我国畜禽养殖行业中的规模化养殖单位,养殖畜禽品类繁多且污染产生量巨大,而现行的排污许可证申请制度却无法起到畜禽养殖污染防治的效果。为制定更加具体的最佳可行技术标准,完善畜禽养殖行业排污许可证的申请与核发程序,故而通过域外比较瑞典相关立法规定提供参考。瑞典自其环境保护事业开展半个世纪以来,已经形成了由畜禽养殖许可证申请人提交环境影响报告,郡行政议事会同时参考畜禽养殖业最佳可行技术标准,审核资质并发放许可证的畜禽养殖许可制度体系。借鉴瑞典的立法经验,我国畜禽养殖业污染防治应以预防为主,并快相关专项立法的制定进程,以建立畜禽养殖行业排污许可综合管理制度。     

面向生态文明的中国环境管理学:历史使命与学术话语

中国环境管理面临实践困境和学科认同危机的双重考验。本文在回溯其环境学和公共管理的学科渊源基础上,分析了当下中国环境管理学的基本概念、学科归属、功能与定位,认为新时期应基于生态文明思想,重构中国环境管理学的规范价值、知识体系、政策工具与制度机制,提出了重构中国环境管理学的5项建议,包括须注意环境管理的回应性与前瞻性,学科专业性与跨学科协作并重,创新环境管理学的知识生产方式,搭建环境管理学同政治与大众对话的平台和机制,以及形成环境管理的理论、制度与实践相互转化的研究能力等。最后,提出以生态文明思想为引领,树立中国环境治理的道路自信、理论自信、制度自信、文化自信。     

厘清“三线一单”制度与技术逻辑支撑国家生态环境治理体系现代化

“三线一单”编制工作持续推进，长江经济带11省（市）和青海省等大部分省份“三线一单”编制成果已经发布，其余19省（区、市）及新疆生产建设兵团“三线一单”工作也进入成果审核阶段，预期2020年底发布完成。本文在成果表达和地方实践的基础上梳理了“三线一单”的作用和功能定位，认为“三线一单”实现了生态环境空间管控落地，是适应“放管服”改革背景下发挥源头预防作用的重要举措。“三线一单”编制工作凝结了源头预防生态环境风险的空间管控思路，技术逻辑从问题和目标导向出发，形成区域开发的“框子”和“规矩”，确保生态系统结构完整性、功能健康性和过程持续性。基于技术逻辑和已发布成果的案例分析可知，“三线一单”实施能够提升国土空间规划、区域国民经济发展规划和地方立法等领域的绿色化发展水平，支撑生态环境体系和治理能力现代化。     

《能源法》(征求意见稿)第四章的评价与完善

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