Acoustical environment of urban area related to the city development

This paper analyzes the relationship between urban development and noise pollution. The analysis, based on a wide range of measurements and statistical data,reveals the changes of the ambient noise resulting from city development. In conclusion the paper suggests some fundamental measures for improving the acoustical environment, the division of cities into functional areas and the development of a well designed road network. In addition, it is suggested that town planning, architecture and the implementation of appropriate regulations could also help to reduce noise levels.     

论江西省农业可持续发展

本文在论述持续农业提出的背景及其内函和意义的前提下，分析了江西目前存在的主要农业生态环境问题，提出了江西农业持续发展的６条对策和措施，对江西持续农业的发展具有指导意义，同时对南方有关省市具参考价值。     

国内河流水污染现状及防治对策的探讨

对水环境造成的危害进行了论述，分析认为：城市河流污染形势严重。14个大中型城市河段中，63．8％的河段污染较重，为Ⅳ类至劣于Ⅴ类水质。在47个环保重点河段中，29．8％为类于Ⅴ类水质。文中提出了河流水环境污染治理对策。     

中国主要类型土壤Cd、Pb、Cu和As的主要生态学指标和临界含量

通过对中国主要类型土壤中Cd、Cu、Pb、As的生态效应和环境影响以及多指标、多体系确定土壤元素临界含量的研究,提出了中国主要类型土壤Cd、Cu、Pb、As的临界含量及其系统分类特征.     

洱海轮虫及其与生态环境的关系

报道了洱海轮虫的种类组成、区系特点、数量、生物量及其分布规律,分析了轮虫的分布与生态环境的关系,揭示出洱海轮虫的分布特征及其影响其动态的主要因子.     

推行清洁生产 走持续发展之路

江苏油田试采一厂采油七队用清洁生产的观点，规范管理，在推行清洁生产中摸索经验，提出油田实施清洁生产的建议，取得了良好的环境效益和经济效益。     

连云港港的环境保护与可持续发展

通过对连云港港环境保护所面临主要问题的分析 ,提出了加强环境保护 ,促进连云港港可持续发展的途径     

基于GIS的海洋环境质量评价图编制

本文介绍了采用地理信息系统技术制作海洋环境质量评价图的基本内容，重点阐述了图件的表现形式、编制过程和具体的操作方法，为海洋环境质量评价图的制作提供了一种新的方法。     

Analysis and improving ways for water condition in winter wheat field of dryland in subhumid areas of the loess plateau

Based on the soil moisture data from the locating experiments from 1986-1990, and using the water balance method, the water supply and demand state in the field of winter wheat, and the ways for improving water condition in dryland of subhumid by dry area of the Loess Plateau were studied. The results suggested that a low precipitation satisfying ratio of 42.9%-58.8% appears in the growing period of winter wheat, and the yield, to a great extent depends on the water that was stored in deep soil layer in the previous rainy season. The filed trial results showed that tillage in the summer fallow period,straw cover, soil moisture regulation with adequate fertilization, crop rotation and proper croppingsystem could be the efficient ways for improving the water condition,and for the exploitation and utilization of natural water resources(both precipitation and soil water) in the winter wheat field of dryland.