搜索结果: 16-24 共查到“水文学 environment”相关记录24条 . 查询时间(0.218 秒)
Hydrological processes and water resources management in a dryland environment I:An introduction to the Romwe Catchment Study in Southern Zimbabwe
Hydrological processes water resources management Southern Zimbabwe
2009/5/26
In Zimbabwe during the 1980s and early 1990s, a sequence of severe droughts caused widespread food shortages and great hardship to rural communities. The droughts exacerbated the problems of environme...
Lanthanum, cerium, praseodymium and yttrium in waters in an upland acidic and acid sensitive environment, mid-Wales
upland acidic mid-Wales acid sensitive environment
2009/5/18
The less than 0.45 mm filterable lanthanum (La), cerium (Ce), praseodymium (Pr) and yttrium (Y) concentrations in rainfall, cloud water, stream and groundwater in the upper River Severn catchments of ...
Staged cost optimization of urban storm drainage systems based on hydraulic performance in a changing environment
urban storm drainage systems Urban flooding
2009/4/28
Urban flooding causes large economic losses, property damage and loss of lives. The impact of environmental changes, mainly urbanization and climatic change, leads to increased runoff and peak flows w...
Biogeochemical model coupled with hydrodynamic model in lake environment
lake ecosystem biogeochemical model hydrodynamic model
2009/4/2
To study the environmental impact of activities such as forest logging, especially the impact on a lake ecosystem, it is necessary to develop a combined biogeochemical and hydrodynamic model. Here the...
Assessment of lake environment using dragonfly assemblage
eutrophication Odonata bioindicator
2009/4/1
A periodical census of mature dragonflies (Odonata) was conducted at 11 investigation sites along the shore of Lake Takkobu, Kushiro Marsh, Hokkaido in 2004, resulting in a record of 2,572 individuals...
Nutrient water quality of the Wye catchment, UK: exploring patterns and fluxes using the Environment Agency data archives
nutrients phosphate phosphorus
2009/3/12
Water quality data, collected by the Environment Agency in England and Wales over 10 years (1991 – 2000) were used to examine the spatial distribution of nutrient pollution risk and for assessing broa...
Forestry and the aquatic environment: studies in an Irish context
forest-stream interactions Irish plantation forestry macroinvertebrates forest management
2009/3/5
Research on the interaction between plantation forestry and aquatic environments is essential to develop environmentally compatible and sustainable management further
The effects of riparian forest management on the freshwater environment: a literature review of best management practice
riparian wood riparian buffer woodland management freshwater environment water quality
2009/3/5
National Forests and Water Guidelines require the establishment of riparian buffers to help protect the freshwater environment from disturbance by silvicultural operations on the adjacent land.
Department of Geography and the Environment at Boston University
geographic information systems hydrology environment
2007/12/25
the Department of Geography and the Environment at Boston University. Faculty in the Department of Geography offer coursework and conduct research on topics that bring together the Earth's physical an...