【摘 要】
：
As economic development and population increase,there is a severe shortage of water resources in Beijing,which restrict the rapid development of social economy.It is the base of sustainable developmen
【机 构】
：
China Institute of Water Resources and Hydropower Research
论文部分内容阅读
As economic development and population increase,there is a severe shortage of water resources in Beijing,which restrict the rapid development of social economy.It is the base of sustainable development planning to obtain the variation of water amount,water quality and ecological environment,and it is important to evaluate the safety of water source and to make coping strategy.In this paper,multiple sources satellite data were used to dynamic monitor the natural vegetation cover,land use pattern,water surface area and water quality of reservoir.We also studied and analyzed the changing trends of land cover,water amount and water quality,human impact,relation between rainfall and inflow.Monitoring indicators of remote sensing were proposed for variation of natural vegetation and land use in water source zone of Beijing.Combing remote sensing data with ground observation,monitoring model of reservoir water storage was established.Eutrophication of water body was evaluated for Guanting and Miyun reservoir.Finally,factors affecting water source safety were analyzed and countermeasures and suggestions were discussed to ensure water source safety
其他文献
Detailed vertical soil moisture profile is very essential for hydrological modeling and is also often used as important diagnostic information for better understanding the surface-atmospheric interact
Historical records show that there were more than 36 ancient oasis kingdoms,a lot of rivers including the north and the south branches of the ancient Tarim river,and the ancient Lop Nur great lake in
Methane (CH4) and dioxide (CO2) are atmospheric greenhouse gases (GHG) generated from both natural and anthropogenic processes.GHG emission from geological sources such as volcanic activity,seabed gas
ABSTRACT:It has been long recognized that mountain front fluvial fans and terrace risers are affected by tectonic setting,climatic changes and climatically induced base-level changes,yet it is not an
Tectonic-geomorphological methods are effective in studying crustal deformation in recent geologic time,which gives a link between ongoing tectonic processes and orogenesis.Recent GPS observations hav
Integrated Research on Disaster Risk (IRDR) Programme,co-sponsored by the International Council for Science (ICSU),the International Social Science Council (ISSC),and the United Nations International
Winter drought of wheat in North China is becoming more frequent due to climate change.In the winter of 2008/2009 and 2010/2011,there was serious drought in few parts of the North China Plain.But wint
Existing seismic hazard map (the map of seismic zonation) of the territory of Tajikistan was produced in 1978 (Babaev et al.,1978),renovated in 1984 (Seismic zonation…,1984),and has the seismic hazard
The region from the northeastern margin of the Pamir to the West Kunlun range is an important part of the northwestern Tibetan Plateau,which is surrounded by the Kongur Shan normal fault,Main Pamir Th
This paper looks at the status of earth observation data continuity issues.There are several factors affecting the continuity of global data sets which will impact our ability to monitor global change