谈节能减排与创建绿色饭店

分析了在低碳经济的大背景下,饭店业节能减排是建设节约型、环境友好型经济,构建和谐社会的客观需求,也是行业发展的关键和制高点.绿色饭店创建浪潮在上世纪末的兴起,以其管理优势而备受业界推崇.同时节能减排是创建绿色饭店的必由之路,因此,饭店要倡导节能减排,积极探索节能减排途经并创建绿色饭店,这是饭店行业未来发展的必然趋势.     

粤北三座典型中型水库富营养化与浮游植物群落特征

于2010年丰水期（8月）和枯水期（12月）采集粤北地区3座中型水库（沐溪、苍村和赤石迳水库）的水和浮游植物,分析植物群落与水质,以考察季节性温度差异与鱼类养殖对水库水质和浮游植物群落结构的影响。结果表明,3座水库分别属富营养、中营养和中营养水平,营养盐质量浓度丰水期高于枯水期。共鉴定浮游植物7门56种（属）,群落组成以蓝藻、绿藻和硅藻为主。沐溪水库丰枯两季均以蓝藻为优势类群,其浮游植物丰度和生物量明显高于其余两座水库（p〈0.01）;苍村和赤石迳水库丰水期优势门类均为蓝藻,枯水期均为硅藻。3座水库浮游植物丰度均表现为丰水期高于枯水期,生物量则枯水期高于丰水期,但均无显著性差异（p〉0.05）。RDA（冗余分析）结果表明,透明度、总氮和悬浮物是影响浮游植物群落结构的主要因素;其中,沐溪水库的营养盐和悬浮物与浮游植物群落正相关,苍村和赤石迳水库浮游植物群落则与水深和透明度正相关;温度对浮游植物群落的影响主要体现在种类组成的季节差异上。营养盐和优势种类的季节差异造成了浮游植物丰度和生物量在丰水期和枯水期的不一致。聚类分析将不同季节的3座水库分为2个类区,非养鱼水库苍村和赤石迳水库为第一类区,养鱼的沐溪水库为第二类区。沐溪水库库区内发展鱼类养殖业为浮游植物提供了高质量浓度营养盐（尤其是总磷）,即使在温度较低的冬季仍支持蓝藻种类的优势性。     

绿色屋顶雨洪调控能力与效益评价

日益频发的城市内涝灾害引起了社会各界的广泛关注,其主要原因是快速城市化导致的不透水面增加.绿色屋顶能够有效增加城市透水面面积,进而从源头上控制雨水径流,具有重要的生态环境效益.本文以南京市金陵小学行政楼的绿色屋顶为研究区,收集了17个月（2016-06~2017-10）中的76起降雨与径流数据,探讨了场地尺度上绿色屋顶的综合径流调控能力,辨识了影响其径流调控能力的主要因素,并基于生命周期评价理论与方法对其30年生命周期下的雨洪调控效益进行了定量评价.结果表明：①该绿色屋顶的平均截流率为62.7%,可有效削减雨水径流量和洪峰流量、延缓径流发生时间和峰现时间.②绿色屋顶对于中小型降雨具有较强的截流能力,但当其滞留能力达到饱和状态或未完全恢复时,即使是小型降雨,其截流能力也会大幅降低.③绿色屋顶径流调控能力的主要影响因素为降雨量、降雨强度和生长基质含水量.④绿色屋顶建设的成本效率为12.51元·m^-3,费效比为5/12（0.41）,经济效益较高.本研究结果可为绿色屋顶的规划建设、推广普及政策制定提供重要的科学依据和决策参考.     

吉林省资源型城市可持续空间重构研究

以典型资源型城市吉林省辽源市为案例,探讨其城市空间结构的现状特征和空间问题;在理论框架分析与经验分析的基础上,从市区和市域两个尺度提出辽源市可持续城市空间结构的优化途径.     

关于新乡市建设资源节约型环境友好型城市的思考

建设和实现美丽中国是一个系统工程,要通过建设资源节约型环境友好型城市这一重大举措来实现。根据新乡市高能耗、高物耗、高污染的产业仍占较大比重,粗放型的经济增长方式没有得到根本转变的现实情况,提出了建设资源节约型环境友好型城市应着重解决的几个问题,并提出了相应的对策建议,对于新乡市加快经济结构调整,实现可持续发展和全面建成小康社会的目标具有重要意义。     

中小城市的光污染及防治对策

我国经济处于高速增长期,建设日新月异,中小城市的光污染问题日趋明显,防治显得十分重要。文章以中山市城区为例,对道路照明、建筑照明、广告照明、绿化照明,以及玻璃幕墙反射等光污染情况进行了调研和评价。根据中山市城区的光污染情况,从制定和完善光污染防治法规体系、加强规划和宏观管理、提高公众参与力度和监督力度、加大人才培养和政策扶持力度、加大清洁生产推广力度以及实施照明设计单位资质认证等多方面提出了对光污染的防治对策。     

秦皇岛市城镇化建设中环境问题及对策探析

城镇化的快速发展使秦皇岛市在城镇化推进过程中出现了水资源匮乏、大气污染加剧、固体废弃物逐年增加等问题,其他环境安全问题也随之不断凸显。因此,提出秦皇岛市城镇化建设与环境协调发展的对策：加强水源保护;加强PM10和PM25的源头控制;加大投入,做好城市生活垃圾处理;坚持生态学发展理念。     

Assessment of Residential Rain Barrel Water Quality and Use in Cincinnati,Ohio1

The collection, storage, and reuse of rainwater collected in rain barrels from urban rooftop areas assists municipalities in achieving stormwater management objectives and in some areas also serves as an adjunct resource for domestic water supplies. In this study, rainwater reuse and levels of select microbial indicators were monitored for six residential rain barrels located in the Shepherd Creek watershed of Cincinnati, Ohio. Water from rain barrels typically had poor microbial quality and was used for watering indoor and outdoor plants. Rain barrel water chemistry was slightly acidic, exhibited wide ranges in conductivity, turbidity, and total organic carbon (TOC) concentrations and gave no evidence of the presence of cyanobacterial microcystin toxins. Selected microbial water‐quality indicators indicated that counts of total coliform and enterococci were consistently above U.S. Environmental Protection Agency standards for secondary recreational contact water‐quality standards. Residential rain barrels can provide water appropriate for low‐contact reuses (such as plant watering), although there may be transient periods of high levels of indicator bacteria in the collected water.     

连云港市发展循环经济的探讨

从连云港市循环经济建设的现状、存在的问题入手，提出了该市发展循环经济的思路以及保障措施。     

Development of the Greening of Industrial Firms in the Cities along Taihu Lake： A Case Study in Wuxi City, Jiangsu Province

Under the globalization, the coastal China becomes a hot area of the international manufacturing investment due to its priority location, excellent environment, lower labor and land costs, etc. However, the fast industrialization has aroused the great demolishment to the local ecological environment. For example, the heavy water eutrophication in Taihu Lake has affected the source of drinking water for the cities around the lake. Anyway, in order to keep the economic increase and reduce the resource ex- pense and pollution at the same time, it is necessary to encourage the greening of industrial enterprises actively for sustainable de- velopment. On the basis of the investigation of industrial enter- prises in Wuxi city within Taihu Basin, the relatively developed region in coastal China, this paper analyzed the development process of green industry. This article concluded that governmen- tal principal is the main pressure for enterprises to protect envi- ronment while the market factor plays a part role. Moreover, en- terprises in the high technology development zone work better in environmental protection than those in the villages and towns, while the large enterprises work better than those small enterprises.