烃类化合物气相色谱保留指数与其分配系数关系研究

报道了从烃类化合物气相色谱保留指数预测其正辛醇水分配系数的公式，研究了以不同极性相上测得的烃类化合物保留指数预测其分配系数的准确性，得出弱极性柱上测得的化合物保留指数能更准确的预测其分配系数，从而为烃类化合物分配系数的测定和预测提供了一种简便易行的新方法。     

高浓印染废水处理工程的设计审计与运行结果分析

通过对漂染厂生产工艺过程及排废状况进行审计研究，提出了有针对性的废水处理工艺流程，区别对待废水浓度、污染物成分、化学作用及其工艺原理，实现了废水处理各工艺段的适配与综合节能的协调，在保证废水高效达标处理的前提下使工程优化     

21世纪水处理厂考察报告

评介了美国 2 1世纪水处理厂处理和回收城市污水的总体方案、处理工艺、处理效果、处理水应用以及所取得的环境效益、社会效益和经济效益 ,其建厂目的体现了美国治理环境的战略思想 ,其工艺、装备和整体技术代表了美国环境污染综合整治的先进水平 ,有值得借鉴之处。     

浅谈水泥生产中回转窑窑尾SO_2监测

窑尾监测SO_2时,有时会出现其浓度低于仪器最低检出限的情况,应根据窖尾类型、煤中硫含量大小,有无脱硫工艺等情况,认真对比、计算分析,以保证监测数据真实可靠。     

西部高寒干旱地区生态可持续发展刍论--以内蒙古乌兰察布盟为例

西部高寒干旱地区的生态可持续发展在整个西部的大发展中是相当重要的组成部分。本文以内蒙古乌兰察布盟为例，列举其主要生态问题，分析这些问题产生的原因，论述该地近年来在生态可持续发展建设方面的政策、措施，以及成效，从而得出相关的启示：应加强环境资源再生能力建设，进行制度创新，尊重科学规律，采用科学手段等。     

Analysis on sensitivit and landscape ecological spatial structure of site resources

This article establishes a set of indicators and standards for landscape ecological sensitivity analysis of site resources by using the theories and approaches of landscape ecology.It uses landscape diversity index(H),evenness(E),natural degree(N),contrast degree(C) to study spatial structure and landscape heterogeneity of site resources and thus provides a qualitative-quantitative evaluation method for land planning and management of small ,medium scale areas.The analysis of Yantian District,Shenzhen of China showed that Wutong Mountain belonged to high lanscape ecological sensitivity area,Sanzhoutian Reservoir and Shangping Reservoir were medium landscape sensitivity area and high ecological sensitivity area;Dameisha and Xiaomeisha belonged to medium sensitivity area caused by the decline of natural ecological areas.Shatoujiao,Yantian Pier belonged to low sensitivity area but urban landscape ecological development had reshaped and influenced their landscape ecological roles in a great extent.Suggestions on planning,protection goals an development intensity of each site or district were raised.     

Biogenic VOCs emission inventory development of temperate grassland vegetation in Xilin River basin, Inner Mongolia, China

Given the key role of biogenic volatile organic compounds(VOCs) to tropospheric chemistry and regional air quality, it is important to generate accurateVOCs emission inventories. However, only a less fraction of plant species, in temperate grassland of Inner Mongolia, has been characterized by quantitative measurements. A taxonomic methodology, which assigns VOCs measurements to unmeasured species, is an applicable and inexpensive alternation for extensive VOCs emission survey, although data are needed for additional plant families and genera to further validate the taxonomic approach in grassland vegetation. In this experiment, VOCs emission rates of 178 plant species were measured with a portable photoionization detector( PID). The results showed the most of genera and some families have consistent feature of their VOCs emission, especially for isoprene, and provide the basic premise of taxonomic methodology to develop VOCs emission inventories for temperate grassland. Then, the taxonomic methodology was introduced into assigning emission rate to other 96 species, which no measured emission rates available here. A systematical emission inventory of temperate grassland vegetation in Inner Mongolia was provided and further evidence that taxonomy relationship can serve as a useful guide for generalizing the emissions behavior of many, but not all, plant families and genera to grassland vegetation.     

长江三角洲地区耕地总量动态平衡政策目标实现的可能性分析

在分析中国耕地总量动态平衡政策产生背景及区域耕地数量变化驱动因素的基础上,通过建立耕地总量动态平衡政策运行效果评价的社会经济影响因素分析模型,根据当前长江三角洲地区社会经济发展的趋势,认为2005年这一地区是有可能实现耕地总量动态平衡这一政策目标的。但是,2010年该地区耕地拥有量将与耕地总量动态平衡目标相差9.12%,因而实现耕地总量动态平衡的难度较大。同时,研究区域所属的11个城市耕地总量动态平衡政策目标实现的可能性也不一样,具体有4种类型:一是可以实现平衡的,为江苏省泰州市和浙江省湖州市;二是较难实现平衡的,有江苏省南通市、镇江市、常州市和浙江省嘉兴市;三是难以实现平衡的,有江苏省南京市、苏州市、无锡市和扬州市;四是实现平衡可能性不大的,为上海市。同时,文章还认为耕地质量的改善对于区域耕地保护具有实质性的积极意义。     

An approach to the fluctuation mechanism of ecotone

In this paper,the relationship among land productivity,population pressure and the fluctuation mechanism of ecotone is analyzed,taking coumties and banners of southeast Inner Mongolia plateau as an example,which is the most fragile part in the farming and husbandry interleaving belt of north China due to its severe desertification degree and low level of economic development.The Cv for the total output value of agriculture decreases from southeast to northwest,with the same rule as which the overloading population cumulated distributes,and both indicators have close relation with the high linear coefficient of 0.83.These reveal the fluctuation mechanism for ecotone:fluctuation of the level of economic development is a scientific and practical measure both to weakness degree and to instability of ecotone,because it is a synthesized response to the variation of climate as well as irrational land uses,which reinforce and magnify the fluctuation.In detail,the heavier the population overloading,the severer the grassland reclamation,the stronger the dependence of regional productivity on rainfall,the lower the level of economic development,the rougher the fluctuation of ecotone,but the weaker the PRED system.     

黄土洞穴的环境灾害效应

黄土洞穴本身是一种地质灾害,对黄土地区的运输、管道、拦蓄水工程、厂房、民居等各类工业与民用建筑构成不同程度威胁;还可促发其它地质灾害的发生和发展,恶化黄土高原地区的生态环境和地质环境。文章根据野外和室内研究所积累的资料,对黄土洞穴的地质灾害效应以及环境变化效应进行了初步研究。其研究成果不仅为黄土洞穴工程灾害的防治提供科学依据,而且还可进一步了解黄土地区水土流失的发育规律及其第四纪以来的地质环境变化状况。