1)river network河网水系
1.Influences of urbanization on river network in the coastal areas of East Zhejiang province;浙东沿海城镇化对河网水系的影响
2.Based on relief map data and rivers general investigation data for Shenzhen region,the spatiotemporal change of river network system in the region and its cause were studied.在地形图、河道普查数据、航空相片和遥感影像等多源数据支持下,探讨了深圳市1980-2005年河网水系的时空变化规律及其成因。
英文短句/例句
1.Study on the Extraction of Drainage Network of Watershed Based on DEM--A Case Study of Jinjiang Watershed基于DEM流域河网水系提取研究——以晋江流域为例
2.Trend Analysis of Digital Drainage Network Extraction Affected by DEM ResolutionDEM分辨率对数字河网水系提取的影响趋势分析
3.The disappeared rivers are mainly located in the urban fringe and near to the major roads,where the urbanization is intense,reflecting the violent encroachment of urbanization to river network.城市化水平较低的城市边缘区,城市化进程迅速,河网水系缩减迅速;
4.Dynamic Changes of River Network under Intensive Human Activities:A Case of Pudong New Area,Shanghai Municipality高强度人类活动下河网水系时空变化分析——以浦东新区为例
5.Study on the Protection and Environmental Effect of the River Network in the Urbanization Process of Shanghai City;上海城市化过程中的河网水系保护及相关环境效应研究
6.Environmental Effects of Land Use and Cover Change on River Systems in Huangpu River Catchments;黄浦江流域土地利用/覆被变化对河网水系的环境效应
7.Research on Horton Code and Graphic Generalization of Catchment;水系河网的Horton编码与图形综合研究
8.Study on Water Storage of Storing-and-Detention Areas in North Tianjin for Flood-Water Resources Utilization;天津市北系河网洪水资源化蓄滞洪区蓄水研究
9.Study on Water Storage Optimization of Medium and Small Flood in Tianjin North River Network;天津市北系河网中小洪水蓄水优化研究
10.Stream Structure Characteristics and Its Urbanization Response in Dense River Network Plain: A Case Study of Shanghai,China;平原河网地区水系结构特征及城市化响应研究
11.Developing sea-river joint transport to improve waterway transport network in Zhejiang province大力发展海河联运 完善浙江水运网络系统
12.Design and Realization of Computer Control and Supervision System Network in Huoxihe Cascade Hydropower Plants火溪河梯级水电站监控系统网络设计与实现
13.The system consists of a reservoir for overgcar storage, controllable irrigation gate and network of rivers.系统由多年调节水库、控灌溉水闸和渠网河系组成。
14.Dynamic Analysis of Arresting Net of Suzhou River Estuarine Sluice苏州河河口水闸水上拦阻网动力分析
15.Artificial neutral networks application in relation analyzing of river high-water level and flow人工神经网络在河流高水水位流量关系分析中的应用
16.Percentages of the Water Quality Grades of the Hai River System海河水系水质类别比例
17.Percentage of the Water Quality of the Yellow River System黄河水系水质类别比例
18.Percentage of Water Quality Grades in Liao River System辽河水系水质类别比例
相关短句/例句
river network management水系河网管理
3)river network change河网水系变化
1.Assessment of flood hazard based on river network change:taking the Beijing-Tianjin segment of Yongding River watershed as an example;基于河网水系变化的水灾危险性评价——以永定河流域京津段为例
4)digital drainage network数字河网水系
1.The digital drainage network extraction method provides a basic technique for the establishment of basin-scale hydrological model.基于栅格型DEM数据的数字河网水系提取技术为分布式水文模型的建立并应用提供了保障和基础。
5)water quality of river network河网水质
1.The water quality of river network is bad commonly in Xiaoshaoning Plain.浙东地区位于长江三角洲经济区的杭州湾南岸,而且其中的萧绍宁平原河网水质普遍较差。
6)river network flow河网水流
1.Multithreading parallel computation of river network flow in Windows environment;Windows环境下河网水流多线程并行计算
延伸阅读
河网化 平原地区修建纵横交错成网的河道，对水资源进行调节和综合利用的工程技术措施。中国早在五代时期(10世纪)，江苏太湖流域就已形成浦塘制,即纵横交叉的河网，既可用以灌溉，又可进行除涝和综合利用。目前长江中下游广大平原地区、淮河苏北地区和珠江三角洲已形成了比较完整的河网系统，基本实现旱涝保收，成为农业高产地区。 按河网所处的位置及其作用，一般可分为内河网和外河网。内河网分布在一个地区之内，承担该地区内部的排涝、滞涝、排渍、灌溉、航运、养殖等任务。在多水季节,排蓄本区及来自外区的径流,用以除涝；在枯水季节，所存蓄的水量则用于灌溉、航运及其他部门。内河网有天然河道和人工开挖河道。内河网中各河道之间联系形式，一般有"井"字形、"山"字形和"丰"字形三种。"井"字形河网水流四处贯通，航运方便，但当河网主要承担排水任务,并另有灌溉渠系时,河网与灌溉渠道、道路等的交叉建筑物多；"山"字形和"丰"字形可避免上述缺点，但航运不便。外河网大多是天然河道，多分布在地区之间或横跨整个流域，承担地区或流域之间的水量调配，发挥防洪、灌溉、除涝、航运等作用。在内河网与外河网联结处，要修建水闸进行控制，将内、外水分开，有时还需修建泵站，提灌抽排。 河网布置的原则有：①便于按地形特点进行分级分片控制；②按地形条件布置河道，使土方量和建筑物数量少；③尽量利用已有河道及建筑物；④内河网布置与土地利用规划相结合，其中末级河道布置要满足机耕和控制地下水位要求；⑤外河网应满足地区或流域之间水量调配要求；⑥便于内、外河网之间联结。河网布置和尺寸与地区内灌溉渠道、湖泊、水闸、泵站等的布局和规模有关，应进行全面规划。 中国大多数地区采用外河网与内河网统一分级方法，一般分为4～6级。各级河道断面尺寸，可根据其所承担的主要任务，通过水利计算确定。外河网断面尺寸主要取决于防洪和通航要求，内河网断面尺寸主要取决于排涝、滞涝要求。内河网的水面率是以内河网的水面面积与排水区面积的百分比表示，一般要求达到5％～10％。
