Spatial characteristics of water quality, stable isotopes and tritium associated with groundwater flow in the Hutuo River alluvial fan plain of the North China Plain

2008 ◽  
Vol 16 (5) ◽  
pp. 1003-1015 ◽  
Author(s):  
Yintao Lu ◽  
Changyuan Tang ◽  
Jianyao Chen ◽  
Xianfang Song ◽  
Fadong Li ◽  
...  
Keyword(s):  
Water Quality ◽  
Stable Isotopes ◽  
Groundwater Flow ◽  
North China Plain ◽  
North China ◽  
Alluvial Fan ◽  
Spatial Characteristics ◽  
The North ◽  
The North China Plain

Combination of CFCs and stable isotopes to characterize the mechanism of groundwater-surface water interactions in a headwater basin of the North China Plain

2018 ◽  
Vol 32 (11) ◽  
pp. 1571-1587 ◽  
Author(s):  
Shiqin Wang ◽  
Ruiqiang Yuan ◽  
Changyuan Tang ◽  
Xianfang Song ◽  
Matthew Currell ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Surface Water ◽  
North China Plain ◽  
North China ◽  
The North ◽  
The North China Plain

scholarly journals Spatial Characteristics of PM2.5 Pollution among Cities and Policy Implication in the Northern Part of the North China Plain

Atmosphere ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 77
Author(s):  
Yangjun Wang ◽  
Hongli Li ◽  
Jin Feng ◽  
Wu Wang ◽  
Ziyi Liu ◽  
...  
Keyword(s):  
Prevention And Control ◽  
North China Plain ◽  
North China ◽  
Recent Decade ◽  
Clustering Coefficient ◽  
Spatial Characteristics ◽  
Pollution Levels ◽  
The North ◽  
The North China Plain ◽  
And Control

In the recent decade, the North China Plain (NCP) has been among the region’s most heavily polluted by PM2.5 in China. For the nonattainment cities in the NCP, joint pollution control with related cities is highly needed in addition to the emission controls in their own cities. However, as the basis of decision-making, the spatial characteristics of PM2.5 among these cities are still insufficiently revealed. In this work, the spatial characteristics among all nonattainment cities in the northern part of the North China Plain (NNCP) region were revealed based on data mining technologies including clustering, coefficient of divergence (COD), network correlation model, and terrain and meteorology analysis. The results indicate that PM2.5 pollution of cities with a distance of less than 180 km exhibits homogeneity in the NCP region. Especially, the sub-region, composed of Xinxiang, Hebi, Kaifeng, Zhengzhou, and Jiaozuo, was strongly homogeneous and a strong correlation exists among them. Compared with spring and summer, much stronger correlations of PM2.5 between cities were found in autumn and winter, indicating a strong need for joint prevention and control during these periods. All nonattainment cities in this region were divided into city-clusters, depending on the seasons and pollution levels to further helping to reduce their PM2.5 concentrations effectively. Air stagnation index (ASI) analysis indicates that the strong correlations between cities in autumn were more attributed to the transport impacts than those in winter, even though there were higher PM2.5 concentrations in winter. These results provided an insight into joint prevention and control of pollution in the NCP region.

Spatial geochemical and isotopic characteristics associated with groundwater flow in the North China Plain

2004 ◽  
Vol 18 (16) ◽  
pp. 3133-3146 ◽  
Author(s):  
Jianyao Chen ◽  
Changyuan Tang ◽  
Yasuo Sakura ◽  
Akihiko Kondoh ◽  
Jingjie Yu ◽  
...  
Keyword(s):  
Groundwater Flow ◽  
North China Plain ◽  
North China ◽  
The North ◽  
The North China Plain

Parallel simulation of groundwater flow in the North China Plain

2014 ◽  
Vol 25 (6) ◽  
pp. 1059-1066 ◽  
Author(s):  
Tangpei Cheng ◽  
Jingli Shao ◽  
Yali Cui ◽  
Zeyao Mo ◽  
Zhong Han ◽  
...  
Keyword(s):  
Groundwater Flow ◽  
North China Plain ◽  
North China ◽  
Parallel Simulation ◽  
The North ◽  
The North China Plain
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