浅析环境保护中的公众参与制度

公众参与是环境保护法中的一项重要制度,对环境法可持续发展目标的实现有重要作用.然而我国环境法中公众参与制度尚未发挥其应有的作用,文章结合相关规定对完善公众参与制度提出了建议.     

城市道路交通噪声的控制探讨

随着城市的高速发展,机动车拥有量急剧增长,道路交通噪声扰民的问题也愈来愈突出,群众投诉不断增加,针对这一日益尖锐的环境问题,经过大量实地监测和考察,探讨用在超标路段上铺设低噪声路面表面层来替代传统控制交通噪声方法,力求有效改善城市声环境质量.     

石灰石-石膏湿法脱硫技术问题及脱硫效率探讨

阐述石灰石-石膏湿法脱硫工艺原理及存在的技术问题和处理方法,并对影响脱硫效率的主要因素及近年来发展趋势进行了探讨.     

Influence of new town development on the urban heat island - The case of the Bundang area

Five new towns have been developed around the Seoul metropolitan area since 1996. However, these new towns generate lots of traffic and related problems in the areas including those new towns and Seoul as a result of increases in population and a lack of ecological-self-sufficiency. Currently, construction of another new town is under deliberation, and what should be a major consider is the notion that the new town be located within a wide, green zone. Many studies have revealed that green space can play an important role in improving urban eco-meteorological capability and air quality. In order to analyze the urban heat island which will be created by the new urban development, and to investigate the local thermal environment and its negative effects caused by a change of land use type and urbanization, Landsat TM images were used for extraction of urban surface temperature according to changes of land use over the last 15 years. These data are analyzed together with digital land use and topographic information. As a study result, it was found the urban heat island of the study area from 198.5 to 1999 rapidly developed which showed a difference of mean temperature above 2.0. Before the Bundang new town construction the temperature of the residential area was the same as a forest, but during the new town construction in 1991 analysis revealed the creation of an urban heat island. The temperature of a forest whose size is over 50% of the investigation area was lowest, and thus the presence of a forest is believed to have a direct cooling effect on the urban environment and its surroundings. The mean temperature of the residential and commercial areas in the study was found to be 4.5 higher than the forest, and therefore this part of land use is believed to be the main factor causing the temperature increase of the urban heat island.     

永梅会与中下扬子地区的成矿条件对比

永海会地区的区域构造、含矿地层和建造、中生代火山侵入岩体特征、局部控矿构造以及成矿物质来源、硫氢氧同位素、铅同位素、年龄同位素等成矿信息，都与扬子区、萍乐区已知铜金矿集区有许多相似之处。通过对比表明，永海会地区具有极大的找矿前应景。     

加大重组力度 促进企业发展——来自武进大厦集团有限公司的调查

按照现代企业制度的要求，对企业进行结构调整，规范企业行为，建立和完善企业的激励机制和约束机制，是当前物资企业适应社会主义市场经济，摆脱困境，加快发展的主要途径之一。武进市物资局结合本系统物资企业的实际情况，按照公司法要求，于去年3月筹备组建了由武进市金属材料总公司、武进大厦两方股东出资为核心的武进大厦集团有限公司。在筹建的过程中，武进大厦集团的领导层率领全体员工围绕着一求生存，二求发展的目标，奋力拼搏，勇于开拓，在市场经济的激烈竞争中经受了考验。     

美国的环境立法

通过对美国环境立法发展状况的分析,阐述了美国环境法规的特点,及其在国家加强行政环境管理等方面的作用。立法不完善,是美国环境立法的主要问题。     

草履虫──针杆藻群落对混合印染废水净化作用的条件实验

本文对混合印染废水的静态净化过程，进行了生物群落观察和条件实验。发现废水净化初期以大量细菌和草履虫（以 Ｐ． Ｃａｕｄａｔｕｍ为主）繁殖为特征，同时伴生着少量浮游藻类。随着净化过程的进行，细菌和草履虫数量下降，以针杆藻（以 Ｓ． ａｕｃｓ为主）为建群种的浮游藻类群落占优势。化学分析表明，净化作用与温度、光照条件及废水起始浓度有关。     

改革开放以来我国粮食生产转型分析及展望

粮食生产转型是乡村生产体系演变的核心内容,以粮食生产转型研究为突破口能够清晰反映区域乡村人地关系的演化过程,为深化城乡融合发展和乡村转型发展研究提供新的视角。本文聚焦我国改革开放以来粮食生产转型历程,并尝试构建我国粮食生产转型的分析框架。研究发现,改革开放以来我国粮食生产转型呈现出“以粮为纲—农业结构调整—综合转型—城乡互动”四个差异化阶段特征。利用GL-RL模型,构建了我国粮食生产转型的分析框架。研究发现,改革开放以来我国粮食生产由Green Loop阶段演化到Red Loop阶段,粮食生产逐渐由本地生产融入到城乡生产网络,驱动粮食生产转型的扰动因素具有多时空尺度特征和跨尺度效应。城乡融合发展、乡村振兴战略、乡村人地关系协调和全球化等因素将会对未来粮食生产转型产生重要影响。此外,优化粮食生产转型与乡村转型发展的关系,将为保障粮食生产有序转型,完善乡村生产体系创造条件。