东辽河流域地下水动态特征分析

东辽河流域地下水资源比较丰富,占该区水资源总量的72%,供水量中,地下水占37.6%,同时,该区地表水资源污染相对较重,因此,地下水的开发利用越来越受到人们的重视。本文根据东辽河流域1956-2000年共45年的地下水动态资料序列,分析得出地下水动态变化的主要影响因素为大气降水、地表水及人为因素,预测地下水动态多年变化将趋于稳定。     

EXPERIMENTAL INVESTIGATIONS ON LONGITUDINAL DISPERSION CHARACTERISTICS OF TIDAL RIVERS

1 .　ＩＮＴＲＯＤＵＣＴＩＯＮＵｎｄｅｒｔｈｅｉｎｆｌｕｅｎｃｅｏｆｎａｔｕｒａｌｔｉｄｅｓ,ｔｈｅｉｎｔｅｒａｃ ｔｉｏｎｓｂｅｔｗｅｅｎｆｌｏｗｆｅａｔｕｒｅｓａｎｄｐｏｌｌｕｔａｎｔｌｏｎｇｉｔｕｄｉｎａｌｄｉｆｆｕｓｉｏｎｉｎｔｉｄａｌｒｉｖｅｒｓａｒｅｉｍｐｏｒｔａｎｔｆｏｒｗａｔｅｒｅｎｖｉ ｒｏｎｍｅｎｔｒｅｃｔｉｆｉｃａｔｉｏｎｉｎｅｓｔｕａｒｉｎｅｒｅｇｉｏｎｓ.Ｔｈｅｄｉｆｆｕ ｓｉｏｎａｎｄｔｒａｎｓｐｏｒｔｏｆｐｏｌｌｕｔａｎｔｉｎｎａｔｕｒａｌｒｉｖｅｒｓｆａｌｌｉｎ ｔｏｍ…     

Structure of interstitial assemblages in a regulated channel of the river rhine (France)

The interstitial assemblages of the River Rhine were studied in the Rhinau sector (France). The studied area is located in aVegulated channel of the river, controlled by a hydroelectric dam. Twenty stations were sampled in September 1988. Ten litres of interstitial water were pumped at 50 cm depth in each station using the Bou-Rouch technique. Interstitial waters were poorly oxygenated and the hyporheic fauna had three major characteristics: (1) microcrustaceans were dominant, (2) the insects were rare and (3) the stygofauna was absent. The richest stations were well oxygenated and did not correspond to any particular geomorphological features. These findings contrast with the situation observed on other large European rivers (Rhǒne, Danube) where the interstitial assemblages appear to be locally more diversified and rich in stygofauna.     

NUMERICAL SIMULATION OF STREAMBED HEAT TRANSFER

１．　ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｓｉｍｕｌａｔｉｏｎｏｆｓｔｒｅａｍｗａｔｅｒｔｅｍｐｅｒａｔｕｒｅｉｓｓｉｇｎｉｆｉｃａｎｔｌｙｉｍｐｏｒｔａｎｔｆｏｒｔｈｅｓｔｕｄｙｏｆｎｕｍｅｒｉｃａｌｍｏｄｅｌｉｎｇｏｆｒｉｖｅｒｉｃｅｐｒｏｃｅｓｓｅｓ［１］　．Ｈｉｓｔｏｒｉｃａｌｌｙ，ｔｈｅｍａｔｈｅｍａｔｉｃａｌｍｏｄｅｌｉｎｇｏｆｔｈｅｔｒａｎｓｐｏｒｔａｎｄｆａｔｅｏｆｈｅａｔｉｎａｗａｔｅｒｂｏｄｙｈａｓｂｅｅｎｔｈｅｓｕｂｊｅｃｔｏｆｅｘｔｅｎｓｉｖｅｓｔｕｄｙｆｏｒｖａｒｉｏｕｓｒｅ…     

MIKEII 软件系统在穆棱河流域面源污染估算中的应用

穆棱河流域面源污染入河量调查和估算采用了MIKEII软件系统，根据水质、水量实测数据，在参数率定和模型验证的基础上．对穆棱河部分河段的水质进行模拟，拟合出面源入河量和年内分布。经验证计算结果较其他方法更合理可靠。     

An investigation into the occurrence of sewage fungus in rivers containing papermill effluents—IV. Growth in experimental channels dosed with effluents and pure compounds

Wastewaters from the manufacture of pulp and paper have given rise to problems of excessive microbial growth in rivers over a number of years. This paper is the first in a series of four articles describing research undertaken by PIRA at four U.K. paper/board mills (one integrated with pulp production) over the period 1978–1980. This first paper briefly reviews the published literature on sewage fungus growth from pulp and paper mill discharges up to 1978, but mainly describes previously unpublished work undertaken by PIRA over the period 1965–1975. This introductory paper thus provides a state-of-the-art review of methods to control sewage fungus growth from pulp and paper mill effluents prior to commencement of the research described in the following three articles.     

关于河流健康内涵与评价方法的综合评述

在可持续发展观念的推动下，河流健康问题引起各界广泛的重视。本文对河流健康的概念与内涵进行了剖析，分析了河流健康与河流生态系统健康的异同，提出了河流健康应包括三方面的内涵：河流自身结构功能完备，能发挥其正常的生态环境效益，并满足人类社会发展的合理需求。系统地总结了河流健康评价方法、评价标准、评价指标及评价模型，指出了评价的主体应当是河流系统，评价的河流不同，评价指标的选取和权重的确定也随之不同，依其具体特征而定。为我国河流健康评价的发展提供了一定的参考价值。     

钱塘江光缆管穿越施工技术

钱塘江光缆管穿越长度2454.15m,穿越深度为32m,穿越中采用了多项新技术、新工艺、新方法。文章介绍了导向孔对穿技术、套管技术、水下磁场电缆铺设技术、长距离泥浆回流技术、长距离穿越钻杆组合技术在钱塘江光缆管穿越施工中的应用。     

信息交换标准在水利信息化工作中的作用

信息分类编码是信息交换标准体系的重要组成部分，是进行信息交换和实现信息资源共享的重要前提。1999年已获批准的《中国河流名代码》在水利信息标准体系起基础性的作用，目前以它为基础的系列水利工程编码的编制工作正在继续开展，本文着重介绍了河流名称代码的编制规则和内容。