Analysis of point source pollution and water environmental quality variation trends in the Nansi Lake basin from 2002 to 2012

2015 ◽  
Vol 23 (5) ◽  
pp. 4886-4897 ◽  
Author(s):  
Weiliang Wang ◽  
Xiaohui Liu ◽  
Yufan Wang ◽  
Xiaochun Guo ◽  
Shaoyong Lu
Keyword(s):  
Point Source ◽  
Environmental Quality ◽  
Lake Basin ◽  
Point Source Pollution ◽  
Nansi Lake ◽  
Nansi Lake Basin ◽  
Variation Trends ◽  
Quality Variation ◽  
Water Environmental Quality

scholarly journals Analysis of Nonpoint Source Pollution and Water Environmental Quality Variation Trends in the Nansi Lake Basin from 2002 to 2012

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Weiliang Wang ◽  
Tiantian Ju ◽  
Wenping Dong ◽  
Xiaohui Liu ◽  
Chuanxi Yang ◽  
...  
Keyword(s):  
Water Pollution ◽  
Economic Development ◽  
Environmental Quality ◽  
Nonpoint Source Pollution ◽  
Nonpoint Source ◽  
Lake Basin ◽  
Class Iii ◽  
Nansi Lake ◽  
Nansi Lake Basin ◽  
Water Environmental Quality

Based on the data analysis of economic development and the water environmental quality from 2002 to 2012 in the Nansi Lake Basin in China, the correlation between economic development and the water environmental quality was researched. Analysis shows that the GDP of the Nansi Lake Basin had an average annual growth of 7.3% in 2012, and the COD andCODMnhad the average annual decrease of 7.69% and 6.79%, respectively, compared to 2002. Basin water environmental quality overall improved, reaching Class III of the “Environmental quality standards for surface water (GB3838-2002).” The pollution of the water environment was analyzed from three aspects: agricultural fertilizers and pesticides, livestock, and aquaculture. Results indicated that the water pollution of the Nansi Lake Basin mainly came from nonpoint source pollution, accounting for more than 80% of the overall pollution. The contributions of both agricultural fertilizers and pesticides account for more than 85% of the overall nonpoint source, followed by livestock and aquaculture. According to the water pollution characteristics of the Nansi Lake Basin, the basin pollution treatment strategy and prevention and treatment system were dissected, to solve the pollution problem of the Nansi Lake Basin.

Spatial-Temporal Comparative Analysis of Water Environmental Quality Features in Nansi Lake Basin

2013 ◽  
Vol 726-731 ◽  
pp. 1525-1529
Author(s):  
Ying Xin ◽  
Zhou Hu Wu ◽  
Ran Wang ◽  
Yong Liang Liang ◽  
Hong Cheng Lei ◽  
...  
Keyword(s):  
Water Quality ◽  
Lake Basin ◽  
Dry Period ◽  
Nansi Lake ◽  
Control Units ◽  
Nansi Lake Basin ◽  
Annual Period ◽  
Water Environmental Quality ◽  
Better Than

Based on monitoring data from 2006 to 2010,the surface water environmental quality features in Nansi Lake Basin were analyzed at temporal and spatial scale. The results show that the water quality in Nansi Lake basin has improved during the annual period, the wet period and dry period. In terms of CODCr and NH3-N, the proportion of water with quality of class I to III has increased, while the proportion of water with quality that was inferior to class V has decreased. The proportion of water with quality of class Ito III in NH3-N was lager than that in CODCr. The Nansi Lake basin water quality in the wet period was slightly better than that in the annual period, while the water quality in dry period was slightly worse than that in the annual period. Judging from the spatial scale, the water quality of control units in the west of Nansi Lake basin is better than those in the east of Nansi Lake basin. The control units of Guangfu River and Laoyun River in Jining were the most seriously polluted areas.

Study on the Risk Pattern of Non-Point Source Pollution Using GIS Technology in the Dianchi Lake Watershed

2011 ◽  
Vol 356-360 ◽  
pp. 771-776
Author(s):  
Cheng Wu ◽  
Guo Chun Deng ◽  
Yan Li ◽  
Zhi Ying Li ◽  
Shu Hua Yang
Keyword(s):  
High Risk ◽  
Point Source ◽  
Evaluation System ◽  
Pollutant Removal ◽  
Assessment System ◽  
Dianchi Lake ◽  
Lake Basin ◽  
Point Source Pollution ◽  
Risk Pattern ◽  
Non Point Source Pollution

A rapid quantitative risk evaluation system of non-point source pollution (NPSP), based on comprehensive consideration of various factors such as topographic features, land use construction, annual mean precipitation, soil erosion characteristics and pollutant removal cost, was constructed using an Spatial Analysis Module of GIS on watershed scale. We investigated the risk pattern of NPSP in the Dianchi Lake Watershed using the rapid risk assessment system. The results indicated that NPSP risk pattern showed the arc or normal distribution trend in the Dianchi Lake Basin, namely the medium risk area of NPSP is the largest (about 1311 km2). Moreover, the spatial difference of high risk NPSP pattern is remarkable: the high risk region for NPSP was primarily in the 10 km range of the southern and eastern parts and the 5 km range of western part around the Dianchi Lake.

Research on the Relationship between Economic Growth and Heavy Metals Pollution of Lake Sediments in Nansi Lake Basin

2015 ◽  
Vol 1092-1093 ◽  
pp. 1017-1020 ◽  
Author(s):  
Jie Zhong Wang ◽  
Li Yuan Yang ◽  
Yun Qian Wang ◽  
Bing Hua Wang
Keyword(s):  
Economic Growth ◽  
Heavy Metals ◽  
Lake Sediments ◽  
Lake Basin ◽  
Nansi Lake ◽  
Metals Pollution ◽  
Kriging Interpolation Method ◽  
Heavy Metals Pollution ◽  
Nansi Lake Basin ◽  
The Relationship

The Environment Kuznets Curve (EKC) hypothesis was applied to explore the relationship between economic growth and heavy metal pollution of lake sediments in Nansi Lake basin. The indicator of economic growth (IEG) was extracted from ten important economic indexes by the method of principal component analysis based on the data from 1978 to 2007. Some representative heavy metals including Hg, Cu, Br and Mn were chosen to analyze the level of heavy metals pollution in Nansi Lake basin. According to the previous research results that the deposition rate of Nansi Lake sediments was 3.5 mm/a, Kriging interpolation method was used to segment the 10.5cm core into 30 parts. The coupling results show that there is an inverted U-shaped curve between IEG and the element Br, half of an inverted U-shaped curve between IEG and Hg and Mn, and a N-shaped curve between IEG and Cu.

Changes of rainfall and its possible reasons in the Nansi Lake Basin, China

2015 ◽  
Vol 30 (4) ◽  
pp. 1099-1113 ◽  
Author(s):  
Dunxian She ◽  
Jun Xia ◽  
Longteng Zhu ◽  
Junmei Lü ◽  
Xiangdong Chen ◽  
...  
Keyword(s):  
Lake Basin ◽  
Nansi Lake ◽  
Nansi Lake Basin

scholarly journals Change of steam structure in the Nansi Lake Basin during the urbanization process since 1980s

2017 ◽  
Vol 29 (1) ◽  
pp. 135-142
Author(s):  
JIANG Yan ◽  
◽  
XUE Lifang ◽  
YU Hongxue ◽  
MENG Yaoyao
Keyword(s):  
Lake Basin ◽  
Nansi Lake ◽  
Urbanization Process ◽  
Nansi Lake Basin
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