Speciation and distribution of mercury in soils around gold mines located upstream of Miyun Reservoir, Beijing, China

2016 ◽  
Vol 163 ◽  
pp. 1-9 ◽  
Author(s):  
Xiaomin Chen ◽  
Hongbing Ji ◽  
Wen Yang ◽  
Baohu Zhu ◽  
Huaijian Ding
Keyword(s):  
Miyun Reservoir ◽  
Gold Mines ◽  
Beijing China

CORRELATION OF MICROCYSTINS AND WATER ENVIRONMENT FACTORS IN MIYUN RESERVOIR OF BEIJING, CHINA

2011 ◽  
Vol 10 (6) ◽  
pp. 849-853 ◽  
Author(s):  
Guisen Du ◽  
Huimin Li ◽  
Yumei Wu ◽  
Dianwei Wu ◽  
Jingshi Wang
Keyword(s):  
Water Environment ◽  
Miyun Reservoir ◽  
Environment Factors ◽  
Beijing China

Payment for Enviromental Services Based on Three Environmental Evaluation Methods in Miyun Reservoir River Basin, Beijing, China

2013 ◽  
Vol 726-731 ◽  
pp. 1155-1161
Author(s):  
Hai Xia Zheng
Keyword(s):  
Water Quality ◽  
Contingent Valuation Method ◽  
Water Source ◽  
Miyun Reservoir ◽  
Environmental Evaluation ◽  
Valuation Methods ◽  
Payment For Environmental Services ◽  
Water Users ◽  
Valuation Method ◽  
Beijing China

Payment for Environmental Services (PES) has been widely adopted as a solution to compensate upstream water users for providing clean water. However, the size of payments is critical to the success of PES, and the problems of determining the correct price is often critical to the implementation of PES policies. We demonstrate three independent valuation methods to determine the price of the ecosystem service (ES) of water quality in the Miyun Reservoir, the main surface water source for Beijing. The three using valuation methods are: i) Water Resources Benefits Assessment (WRBA), ii) Contingent valuation method (CVM), and opportunity cost of limitation of development rights (OCLDR). We found the value of water quality is lowest using OCLDR, highest with CVM, and the WRBA in-between. We propose OCLDR is used to determine compensation to upstream; WRBA for pricing water transfer; and CVM for payments integrated water quality improvement.

scholarly journals Nitrous oxide emission from the littoral zones of the Miyun Reservoir near Beijing, China

2014 ◽  
Vol 46 (5) ◽  
pp. 811-823 ◽  
Author(s):  
Hongli Li ◽  
Meng Yang ◽  
Ting Lei ◽  
Mingxiang Zhang ◽  
Peter Bridgewater ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Wind Speed ◽  
Environmental Factors ◽  
Greenhouse Gas ◽  
Soil Water ◽  
Environmental Drivers ◽  
N2o Emissions ◽  
Miyun Reservoir ◽  
Littoral Zones ◽  
Beijing China

Large dams may be substantial contributors to greenhouse gas emissions. Nitrous oxide (N2O) is the third most important greenhouse gas but studies on N2O emission from reservoirs are limited. We measured N2O emissions and environmental factors including atmospheric pressure, wind speed, air and soil/sediment temperature, biomass, soil water content and organic matter, total nitrogen, NH4+-N and NO3−-N of soil, from the littoral zones of the Miyun Reservoir, near Beijing, China, in January, May, June, August, and October during 2009 and 2010. Using the static chamber method we investigated the seasonal and spatial variation, relating it to environmental factors. Spatial and temporal variations in N2O flux appeared to be influenced by several environmental factors, working singly or in conjunction, including soil water depth, soil nutrition, biomass, and wind speed. In winter and spring, high N2O emissions (up to 1.9 ± 0.6 mg N2O m−2 h−1) were recorded at both eulittoral and infralittoral zones, while the flux from the supralittoral zone was low during all the seasons (from −0.04 to 0.01 mg N2O m−2 h−1). This study suggests that the littoral zone is a substantial source of N2O. However, its spatiotemporal variation and environmental drivers are still not clear.

Spatial variation of water quality in upper catchment of Miyun Reservoir

2016 ◽  
Vol 16 (3) ◽  
pp. 817-827 ◽  
Author(s):  
Erqi Xu ◽  
Hongqi Zhang ◽  
Guanglong Dong ◽  
Lei Kang ◽  
Xuejiao Zhen
Keyword(s):  
Water Quality ◽  
Quality Standard ◽  
Hebei Province ◽  
Nutrient Concentrations ◽  
Miyun Reservoir ◽  
Surface Source ◽  
Beijing China ◽  
Upstream Catchment ◽  
Better Than

Miyun Reservoir is the main surface source of drinking water for Beijing, China. Water eutrophication has compelled authorities to improve the water quality in its upstream catchment. However, a water-quality survey of the entire catchment was lacking. A total of 52 monitoring sites covering the entire catchment were sampled approximately monthly from July–September 2013, in response to rainfall and runoff. Six water nutrient concentrations were used to characterize the eutrophication, which was relatively severe. The total nitrogen pollution was classified as the worst grade of the water-quality standard. The water quality of Bai River was superior to that of Chao River, while the quality of tributaries was better than that of main rivers. The upstream and downstream reaches of main rivers and small tributaries usually had cleaner water than the middle reaches. The worst pollution mainly appeared in the middle reaches in Hebei Province. Spatial variations in water quality were closely related to land use quantitative characteristics of sub-watersheds. We suggest that a balanced, transparent compensation mechanism focused on Hebei Province would assist to improve water quality.

Risk assessment of water soil erosion in upper basin of Miyun Reservoir, Beijing, China

2008 ◽  
Vol 57 (4) ◽  
pp. 937-942 ◽  
Author(s):  
Y. C. Tian ◽  
Y. M. Zhou ◽  
B. F. Wu ◽  
W. F. Zhou
Keyword(s):  
Risk Assessment ◽  
Soil Erosion ◽  
Miyun Reservoir ◽  
Beijing China

scholarly journals BMP Optimization to Improve the Economic Viability of Farms in the Upper Watershed of Miyun Reservoir, Beijing, China

Water ◽  
2017 ◽  
Vol 9 (9) ◽  
pp. 633 ◽  
Author(s):  
Runzhe Geng ◽  
Peihong Yin ◽  
Qianru Gong ◽  
Xiaoyan Wang ◽  
Andrew Sharpley
Keyword(s):  
Economic Viability ◽  
Miyun Reservoir ◽  
Beijing China
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