务实推进新形势下的循环经济发展

"十二五"时期,我国发展循环经济进入统筹安排、全面发展的新阶段。针对如何把握循环经济发展所面临的新形势、新定位,以及如何务实推进循环经济的快速发展,进行深入全面的分析和讨论。     

“十二五”期间发展循环经济要注意解决的问题

论述了我国“十二五”期间发展循环经济、绿色经济应重视解决的5个问题。指出要优化利用能源．从源头治理污染，节能减排，保护生态环境。     

有色金属工业要走高附加值、低能耗、低排放的循环经济发展之路

从节能、环保、资源开发及知识产权保护等方面，论述了我国有色金属工业必须走高附加值、低能耗、低排放的循环经济发展之路，才能实现“十二五”规划的节能减排目标。     

论推进循环经济发展的"两个替代"

循环经济的终极目标。是以尽可能少的资源消耗创造尽可能高的社会福利。因此，我们应该以减物质化为首要原则，依靠人的发展，来实现经济增长和社会生活对自然资源的依赖程度下降。探讨了如何通过“两个替代”．即以服务流替代物质流，以人力资本替代自然资本．来改变原先那种过度消耗自然资源的经济生活方式。推进循环经济的发展。最后．对应“两个替代”的路径选择，提出了制度重构设想：①使价格体系正确反映资源稀缺程度和真实成本；②使市场主体为资源消耗和生态环境负责；③建立社会资谭投向机制。     

Prospering Revolution of Resource Efficiency in Northeast Industrial Area in China

Despite its strong advantages in resource, technology and human resource, China＇s Northeast Industrial Area is also experiencing problems of unreasonable industrial structure, environmental pollution, and the degradation of ecological condition, etc., which prevent this area from achieving a sustainable devel- opment. Through analyzing the resource problem, the present paper proposed a strategy of circular economy for the prosperity of this are, discussed the theories of circular economy and resource recycling, and finally concluded that improving resource productivity is at the core of circular economy.     

黄岛发电厂白泥海水脱硫的应用研究

对黄岛发电厂3#机组海水生石灰脱硫系统,5#和6#机组海水脱硫系统进行改造,利用青岛碱业股份有限公司副产物白泥作海水脱硫的吸收剂,以达到以废治废目的. 结果表明,脱硫系统改造后,脱硫率大于90%,悬浮物和pH均能达标排放;3#机组采用直接法海水白泥乳脱硫,节约生石灰1.24×104 t/a;5#和6#机组用间接法海水白泥乳脱硫,节约海水18 450×104 m3/a,节电1 540×104 kW·h/a;黄岛发电厂万元生产总值综合能耗降低22%,需用青岛碱业有限公司白泥5.48×104 t/a,实现了企业间的循环经济.      

南京市15种树木叶片对铅锌的吸收吸附能力

运用ICP仪对南京市15种主要绿化树木的叶片吸收吸附铅、锌的能力进行了研究。结果表明:15种树木叶片对铅、锌具有一定的吸收净化能力,并依污染物和树种的不同差异明显。在被研究的15个树种中,对铅吸收量较高的树种是雪松和圆柏,对锌吸收量较高的树种是杨树。对铅吸附能力强的树种是雪松,对锌吸附能力强的树种是海桐。叶片吸收和吸附铅的能力强的树种是雪松,叶片吸收和吸附锌的能力强的树种是杨树。最后,通过综合分析得出,杨树和雪松叶片中重金属铅和锌的累积量,可作为铅锌污染监测和评价的重要依据。     

B2B再循环物流网络优化模型研究

行业特性和技术约束致使一些制造企业产生大量的副产品和边角废料,对环境造成巨大压力.而可持续发展要求则促使制造企业寻求一种与自然生态环境和谐共处、资源良性循环的物流模式,构建再循环物流系统.因此,为了有效解决经济发展与环境的矛盾,促进产业间或产业内工业企业进行循环经济实践,设计具有生态柔性的B2B网络下再循环物流系统的结构模型.运用环境影响分析模型,分析再循环物流系统各个业务单元的环境影响因子.基于结构模型,运用混合整数规划方法,构建再循环物流系统多目标优化模型.该模型同时考虑了再循环系统的物流成本和外部环境影响;适合于多物料、单周期、有产能限制的再循环网络设施选址-分配问题.通过算例验证了模型的有效性.      

ANALYZIIG RIPARIAN SITE CAPABILITY AND MANAGEMENT OPTIONS1

ABSTRACT: Riparian areas interact with aquatic and upland conditions and therefore help determine the degree of functionality (streambank stability, shade, sediment, and debris filtering) found in a watershed or catchment. Thus, conditions in riparian areas exert significant influence on water quality. Physical and biological factors (biophysical determinants) that influence these conditions and determine long‐term site ecology include topographic variables, geology, climate, soil texture, and others. These conditions are further modified by management infrastructure (roads, dikes, etc.). Our objective was to develop a system for evaluating site condition in relation to site capability. Since biophysical determinants and infrastructure interact with water quality, our first task was to acquire data concerning the spatial distribution of biophysical determinants and infrastructure constraints and to import them into a GIS system where they could be managed and processed. To expedite analysis, determinants and infrastructure constraints were placed into a hierarchy capable of isolating various site capability types. The hierarchy was designed to incorporate multiscale effects. Site capability areas are georeferenced in this process thereby enabling efficient monitoring and providing a way to focus management on those areas needing improvement. Study tasks included: (1) landscape characterization and hierarchy selection, (2) field assessment, (3) information management and data mining, and (4) information interpretation and adaptive management. This approach appears to be an effective way to isolate general ripananstandardsmaycon site conditions, to provide indications about water quality, and to create strategies necessary for alleviating water quality problems.     

赶不上定理及其循环经济理论意义

阐释了在一个正常发展的长时期的宏观经济体系中人均物质消费量永远上升的观点,研究了人均GDP增长速度和物质利用强度变化速度之间的数量关系,根据二者变化速度相对快慢提出和证明了保证人均物质消费量上升的充分必要条件即赶不上定理.利用赶不上定理,论述了循环经济是解决人类经济增长的无限性与自然资源有限性之间的矛盾的根本途径,当人均GDP增长速度为零时进行结构调整必然降低人均物质消费量,引发社会不安定现象;当人均GDP增长速度足够快时,可以大幅度进行结构调整而不降低人均物质消费量.