河网

Based on the existing studies,the unsteady flow and sediment model of river networks is presented in this paper.

在已有研究的基础上，建立了适合复杂区域的河网非恒定流水沙数学模型。

Comparing the design of a coal terminal adopting different models of transport vessels in the Pearl River Delta region, this paper demonstrates the feasibility of adopting self-unloading vessels in newly-built and rebuilt terminals, to serve as a referenc

摘要通过对珠江三角洲河网地区某电厂煤码头采用不同运输船型的比较设计，提出该区域电厂新建和改建码头采用自卸船码头的可行性与经济性，供同类码头设计时参考、借鉴。

A review of river management history in various countries is used in this thesis to discuss the future development trends of river management and the relationship between river health and river management.Based on the characterization and assessment of river health, Five components of stream condition are presented in this thesis to characterize river health: water quality, aquatic life, physical form, hydrology and streamside zone. It is obtained by comparing the methods and criteria that have been developed by others and reviewing the river assessment practices in various countries. Accounting for the features of urbanization region in plain river network, an indicator system for river health assessment which provides scores for 5 subindices and 17 indicators is established. With almost 200 stream reaches in Shanghai as objective of study and Liwa stream and Zhangjiabang Creek as case study, the application of river health assessment in the planning, baseline survey and post-project appraisal of river management is explored by collecting historical literature and field monitoring. Consequently, some suggestions to improve river management effectiveness are presented from the angle of river health.

本文回顾河流管理漫长历程并指出当前国际发展趋势，进而辨析河流健康状况与河流管理的关系；以河流健康状况的表征和评价为核心，通过对国外RIVPACS、AUSRIVAS、IBI、RCE、ISC等河流健康状况评价方法的分析和比较，以及对美国、英国、澳大利亚、南非等国家河流健康状况评价实践的总结，尝试从理化参数、生物指标、形态结构、水文特征、河岸带状况5个方面全面表征河流健康状况；结合中国东部平原河网地区自身特点，通过评价原则、评价指标、评价标准、评价权重确定等步骤，初步构建了包含河流水文、河流形态、河岸带状况、河流水质以及河流生物5个一级指标(共17个指标)的河流健康状况评价指标体系；在此基础上，采用资料收集与现场实测相结合的方法，以上海近200条中心河道为研究对象，以丽娃河和张家浜为典型案例，分别就河流健康状况在河流管理规划、现状评估以及后评估中的应用进行实证研究，并尝试探讨如何从这三个阶段利用河流健康状况评估改进河流管理的对策。

Taihu Basin is one of the most developed districts in china, and it has the typical reticular watercourse. The conditions of water resources is so complicated, it is really hard to establish scientific and doable methods for water-using quantity control, innovation and cooperation is urgently needed in this work.

太湖流域是我国经济社会最发达的地区之一，也是我国南方最具典型的河网地区，其水文水资源的情势复杂，要创新研究、联合攻关才能开发出科学合理、可操作性强的流域用水总量控制方法。

Results show that there are 73 species,62 genus,8 phylum phytoplankton,which is mainly composed of the Chlorophyta ,Bacillariophyta and Cyanophyta.

2005年12月和2006年6月对苏州平原河网区57个浅水湖泊的浮游植物群落进行了调查，共检出浮游植物8门62属73种，浮游植物主要由绿藻、硅藻和蓝藻组成。

In the middle or down districts of large rivers, such as Zhujiang Tripple, Jingjiang—Dongting lake, Tai lake and Boyang lake, rivers and lakes become complex networks.

在我国一些大江大河的中、下游地区，如珠江三角洲、荆江—洞庭湖区、太湖以及鄱阳湖流域等，众多河流与湖泊交织在一起，形成复杂的河网。

The Paper summarized the characteristics of water systems in the brooky region of Jiang-Zhe Plain in China, and discussed the related water pollution and water shortage issues resulting from water quality deterioration.

摘 要：本文概述了我国江浙平原河网地区的水系特征与伴随社会经济快速发展而来的水环境污染与水质型缺水问题。

It was emphasized that GB3838-2002 not only need to pay attention to the full treatment of wastewater and rainwater but also the proper disposal of treated wastewater which meet the national discharge standard GB18918-2002 but still contain significant amount of pollutants if compare with the national surface water quality standard GB3838-2002. To the brooky region of Jiang-Zhe Plain, the discharged pollutant loads still significantly exceed the environmental capacity of the receiving waters even if all treated wastewater meet the first grade B limits of GB18918-2002, and the water pollution problem still cannot be really eliminated.

通过比较分析，我国现行的城镇污水处理厂污染物排放标准GB18918-2002和地面水水质标准GB3838-2002，明确提出，相对于这一区域的地面水环境质量而言，不但雨污水必须得到充分有效的净化处理，达标排放的污水中也仍然含有总量不容忽视的污染物质；对于江浙平原河网地区，即使全部城市污水都达到GB18918-2002中一级B的要求，排放的污染物负荷仍然会明显超过受纳水体的环境容量，水污染问题仍然难以真正消除；达标处理水的处置与利用问题值得特别的关注与探讨。

Hydrology has obvious characteristics of the upper reaches of the Yangtze, water density, bifurcation ratio, bend coefficient and fractural have close relationship with regional structure, Neotectonics and seismic.

水文具有长江上游的典型特征，河网密度、分歧率、弯曲系数及分维均与区域构造、新构造运动和地震成正相关关系。

Three Gorges area river system fractal dimension value D=1.7239, which indicate that the geomorphy of Three Gorges area is on the mature stage, and river system growth completely.

三峡地区水系分维值D=1.7239，表明三峡地区地貌处于侵蚀发育的壮年期，河网较发育，水系发育的较为完全。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。