搜索结果: 76-90 共查到“知识库 河流学与河口水文学”相关记录211条 . 查询时间(3.017 秒)
利用2种植物带(芦苇、香蒲与芦苇)对受非点源污染河水进行植物带处理污染物的降解效果模拟试验研究。结果表明，植物带处理污染物的降解效果明显优于无植物带，且以混合植物带效果最好。香蒲与芦苇植物带对COD、TN、TP和NH3-N去除率的周平均值分别为31.62%、37.84%、30.65%和34.31%。植物带能够截留地表径流中的颗粒物，提高水域中的溶解氧含量，对防止水土流失与改善流域水质均有显著作用...
On the Effects of Various Factors on the Discharge of the Vantaa River Region
Vantaa River Region Various Factors Effects
2009/6/18
On the Effects of Various Factors on the Discharge of the Vantaa River Region.
Application of a Mathematical Model to a Branched Watercourse
Application Mathematical Model Branched Watercourse
2009/6/15
Application of a Mathematical Model to a Branched Watercourse.
Modelling Systems of Interconnected Lakes.
A summary of hydrochemical research in the Plynlimon catchments from 1983 to the present is related to identifying water flow pathways within catchments and the modelling of soil and stream water acid...
The hydrochemistry of the headwaters of the River Severn, Plynlimon
hydrochemistry Water quality River Severn
2009/6/8
Water quality data spanning 13 years and covering an extensive range of major, minor and trace elements in rain and stream waters at Plynlimon in mid Wales, are presented. Rainfall water chemistry is ...
Bank erosion events and processes in the Upper Severn basin
Photo-Electronic Erosion Pin Bank erosion Upper Severn basin
2009/6/8
This paper examines river bank retreat rates, individual erosion events, and the processes that drive them in the Upper Severn basin, mid-Wales, UK. Traditional erosion pin networks were used to deliv...
Electrical Imaging of Saline Tracer Migration for the Investigation of Unsaturated Zone Transport Mechanisms
Saline Tracer Migration Unsaturated Zone Transport Mechanisms
2009/6/8
Better understanding of field-scale unsaturated zone transport mechanisms is required if the fate of contaminants released at the surface is to be predicted accurately. Interpretation of results from...
Stream water quality in acid sensitive UK upland areas：an example of potential water quality remediation based on groundwater manipulation
Stream water quality potential water quality groundwater manipulation
2009/6/8
The patterns of variation in water quality for an acidic stream draining plantation forest overlying acidic and acid sensitive gley soils with shale and slate bedrock changed following the introductio...
A Regionalised Neyman-Scott Model of Rainfall with Convective and Stratiform Cells
Regionalised Neyman-Scott Model Rainfall Stratiform Cells
2009/6/8
A single-site Neyman-Scott Poisson cluster model of rainfall, with convective and stratiform cells, is fitted to data for 112 sites scattered throughout the UK using harmonic variables to account for ...
Development of a Hydrogeological Model of the Borrowdale Volcanics at Sellafield
Borrowdale Volcanic Group Hydrogeological Model
2009/6/8
This work has arisen out of recent developments within the radioactive waste research programme managed by Her Majesty's Inspectorate of Pollution, UK (HMIP)*, to develop an integrated flow and transp...
Extension of the QUASAR river water quality model to incorporate dead-zone mixing
water quality dead-zone mixing QUASAR river
2009/6/5
A modification to the well-known water quality model "Quality Simulation Along River Systems" (QUASAR) is presented, extending its utility to real-time forecasting applications such as the management ...
应用Visual Basic 6.0应用程序、Microsoft Access数据库、Fortran语言，开发了河口海岸水文信息处理系统。包括：本系统的水文现场数据整编功能，录入非正点的流速、流向、含沙量实测数据，到计算并打印断面潮量、输沙量报表，还采用分潮优化技术的潮汐调和分析及预报功能。计算量相对较小且预报精度高。本系统用户界面友好、操作简便、报表规范、精度高、通用性好，具有实用和推广价值。
Ditch water levels manages for environmental aims：effects on field soil water regimes
field soil water regimes ditch water management pump drainage
2009/5/26
The effects of ditch water management regimes on water tables are examined for two test sites in England, Halvergate in the Broads and Southlake Moor in the Somerset Levels and Moors Environmentally S...
Hydrological processes and water resources management in a dryland environment IV：Long-term groundwater level fluctuations due to variation in rainfall
Long-term groundwater level fluctuations rainfall dryland environment
2009/5/26
To evaluate the effects of variations in rainfall on groundwater, long-term rainfall records were used to simulate groundwater levels over the period 1953-96 at an experimental catchment in south-east...