scholarly journals Evaluation of the Impacts of Land Use on Water Quality: A Case Study in The Chaohu Lake Basin

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Juan Huang ◽  
Jinyan Zhan ◽  
Haiming Yan ◽  
Feng Wu ◽  
Xiangzheng Deng
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Land Use ◽  
Spatial Configuration ◽  
Negative Relationship ◽  
Basic Unit ◽  
Chaohu Lake ◽  
Lake Basin ◽  
Chaohu Lake Basin ◽  
The Chaohu Lake Basin

It has been widely accepted that there is a close relationship between the land use type and water quality. There have been some researches on this relationship from the perspective of the spatial configuration of land use in recent years. This study aims to analyze the influence of various land use types on the water quality within the Chaohu Lake Basin based on the water quality monitoring data and RS data from 2000 to 2008, with the small watershed as the basic unit of analysis. The results indicated that there was significant negative correlation between forest land and grassland and the water pollution, and the built-up area had negative impacts on the water quality, while the influence of the cultivated land on the water quality was very complex. Besides, the impacts of the landscape diversity on the indicators of water quality within the watershed were also analyzed, the result of which indicated there was a significant negative relationship between them. The results can provide important scientific reference for the local land use optimization and water pollution control and guidance for the formulation of policies to coordinate the exploitation and protection of the water resource.

scholarly journals APPLICATION OF CLASSIFICATION ALGORITHM OF MACHINE LEARNING AND BUFFER ANALYSIS IN TORISM REGIONAL PLANNING

2018 ◽  
Vol XLII-3 ◽  
pp. 2297-2302 ◽  
Author(s):  
T. H. Zhang ◽  
H. W. Ji ◽  
Y. Hu ◽  
Q. Ye ◽  
Y. Lin
Keyword(s):  
Land Use ◽  
Regional Planning ◽  
Rapid Development ◽  
Classification Algorithm ◽  
Support Vector ◽  
Chaohu Lake ◽  
Lake Basin ◽  
Multiple Time ◽  
Chaohu Lake Basin ◽  
The Chaohu Lake Basin

Remote Sensing (RS) and Geography Information System (GIS) technologies are widely used in ecological analysis and regional planning. With the advantages of large scale monitoring, combination of point and area, multiple time-phases and repeated observation, they are suitable for monitoring and analysis of environmental information in a large range. In this study, support vector machine (SVM) classification algorithm is used to monitor the land use and land cover change (LUCC), and then to perform the ecological evaluation for Chaohu lake tourism area quantitatively. The automatic classification and the quantitative spatial-temporal analysis for the Chaohu Lake basin are realized by the analysis of multi-temporal and multispectral satellite images, DEM data and slope information data. Furthermore, the ecological buffer zone analysis is also studied to set up the buffer width for each catchment area surrounding Chaohu Lake. The results of LUCC monitoring from 1992 to 2015 has shown obvious affections by human activities. Since the construction of the Chaohu Lake basin is in the crucial stage of the rapid development of urbanization, the application of RS and GIS technique can effectively provide scientific basis for land use planning, ecological management, environmental protection and tourism resources development in the Chaohu Lake Basin.

Estimation on Emission of Nonpoint Source Pollution of Nitrogen and Phosphorus in Different Catchments of the Chaohu Lake Basin, China

2012 ◽  
Vol 518-523 ◽  
pp. 1530-1535
Author(s):  
Li Wu ◽  
Xin Yuan Wang ◽  
Cheng Zhu ◽  
Feng Li ◽  
Su Yuan Li
Keyword(s):  
Water Quality ◽  
Total Nitrogen ◽  
Total Phosphorus ◽  
Nonpoint Source Pollution ◽  
Nonpoint Source ◽  
Chaohu Lake ◽  
Lake Basin ◽  
Chaohu Lake Basin ◽  
The Chaohu Lake Basin

In order to estimate nonpoint source pollution loading of the Chaohu Lake Basin, the total nitrogen, total phosphorus of sediment, soil and water samples in five typical sub-catchments have been measured. Combining with routine monitoring data of the five sub-catchments of the Chaohu Lake, emission of nonpoint source pollution from these catchments were described and estimated with the reformative practical-mean concentration method. The results indicated that nonpoint source pollution contributed 79 % total phosphorus and 58 % total nitrogen to total loading. Thus, nonpoint source pollution was the primary cause of degrading water quality of the Chaohu Lake. The total nitrogen and total phosphorus were mainly from Hangbu-fengle River and Nanfei-dianbu River. Therefore, among five effluents of the Chaohu Lake, Hangbu-fengle River and Nanfei-dianbu River were the dominant sources for degrading water quality of the Chaohu Lake.

scholarly journals LUCC impact on water quality change in Xingyun Lake basin

2020 ◽  
Vol 198 ◽  
pp. 04025
Author(s):  
Xiaolun Zhang ◽  
Yanyan Shao
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Land Use ◽  
Lake Basin ◽  
Quality Change ◽  
Construction Land ◽  
Water Quality Change ◽  
Pollution Indicator ◽  
Bare Land ◽  
Xingyun Lake

Basin ecological environment and water quality are seriously threatened by development around the lake. The thesis intends to assess basin Land Use and land Cover Changes (here after abbreviated as LUCC) impact on water quality change in Xingyun Lake basin. To achieve this purpose, land use information was interpreted from six periods high-resolution images in the past 30 years, which were classified into seven land use types. The water quality data was obtained by investigation and collection. SPSS software was used to celebrate the correlation coefficient between water quality and LUCC. The results revealed that, in the study area construction land, transportation land and farm land were underwent an increase with the region development; grassland and bare land were gradually reduced, forest land had become fragmented. In addition, the water pollution index gradually increased since 2000, the water deteriorated significantly. Furthermore, there was a strong positive correlation between water pollution indicator and farmland, construction land and transportation land, which indicated that the deterioration of water quality may be the result of the combined effects of agriculture non-point source pollution, domestic and industrial pollution; there was a significant negative correlation between water pollution indicator and grassland and bare land, which indicated that permeable underlying mat had significant interception and absorption effects on pollutants.

A multi-proxy lacustrine record of last deglacial–early Holocene environmental variability in the lower Yangtze region from the Chaohu Lake Basin, eastern China

2017 ◽  
Vol 88 (3) ◽  
pp. 446-457 ◽  
Author(s):  
Houchun Guan ◽  
Li Wu ◽  
Jinzhe Zhang ◽  
Shihao Shen ◽  
Dongru Chu ◽  
...  
Keyword(s):  
Lacustrine Sediments ◽  
Cold Climate ◽  
Early Holocene ◽  
Chaohu Lake ◽  
Lake Basin ◽  
Chaohu Lake Basin ◽  
Lower Yangtze Region ◽  
Lower Yangtze ◽  
The Chaohu Lake Basin ◽  
Last Deglacial

AbstractThe Rb, Sr, and Ti content, Rb/Sr ratio, grain size, magnetic susceptibility, and magnetic fabric in sediments of the BZK1 core were utilized to reconstruct the evolution of the climatic environment in the Chaohu Lake Basin between the last deglacial and the early Holocene. Multi-proxy analyses indicate that lacustrine sediments in Chaohu Lake clearly record the Bølling-Allerød interstadial, the Younger Dryas event and dry-cold climate events occurring between 10.7 cal ka BP and 10.5 cal ka BP. At approximately 15.6–14.8 cal ka BP, the waters became deeper and the climate turned cool. The climate subsequently shifted to a relatively humid period and the lake was largest from 14.8 to 12.8 cal ka BP. From 12.8 to 11.7 cal ka BP, the climate abruptly turned dry and cold and the lake shrank to its lowest level. During 11.7–10.7 cal ka BP, the climate became relatively humid but, from approximately 10.7 to 10.5 cal ka BP, suddenly reverted to a dry and cold state. These climatic change records suggest that lacustrine sediments from the Chaohu Lake Basin in the lower Yangtze region responded actively to global climate changes, comparable with the environmental records from stalagmites and other lacustrine sediments in the region.

Environment and Culture during the Pre-Qin Period in the Chaohu Lake Basin, Anhui Province, East China

2012 ◽  
Vol 253-255 ◽  
pp. 829-834
Author(s):  
Li Wu ◽  
Feng Li ◽  
Xin Yuan Wang ◽  
Su Yuan Li ◽  
Cheng Zhu
Keyword(s):  
Chinese Culture ◽  
Environmental Changes ◽  
Archaeological Sites ◽  
Chaohu Lake ◽  
Lake Basin ◽  
Humid Climate ◽  
The North ◽  
Chaohu Lake Basin ◽  
Important Position ◽  
The Chaohu Lake Basin

The Chaohu Lake Basin is one of the human influenced regions of the Pre-Qin Period in China, and more than 100 archaeological sites of Pre-Qin Period were found in this area. There are good relationships between temporal-spatial distribution of archaeological sites and environmental changes, especially with the changes of lakeshore of Chaohu Lake caused by the regional climatic oscillation. The relatively warm and humid climate of the Pre-Qin Period, the important position of ancient Chinese culture exchanges between the north and south, the developed water network, and rich biological resources, all of these factors had been the important environmental foundation for the originating and development of the Pre-Qin culture in the basin.

RS-and GIS-based study on ecological function regionalization in the Chaohu Lake Basin, Anhui Province, China

2013 ◽  
Vol 33 (18) ◽  
pp. 5808-5817 ◽  
Author(s):  
王传辉 WANG Chuanhui ◽  
吴立 WU Li ◽  
王心源 WANG Xinyuan ◽  
王官勇 WANG Guanyong ◽  
孙叶根 SUN Yegen ◽  
...  
Keyword(s):  
Ecological Function ◽  
Anhui Province ◽  
Chaohu Lake ◽  
Lake Basin ◽  
Rs And Gis ◽  
Chaohu Lake Basin ◽  
The Chaohu Lake Basin

Water pollution characteristics and analysis of Chaohu Lake basin by using different assessment methods

2020 ◽  
Vol 27 (15) ◽  
pp. 18168-18181 ◽  
Author(s):  
Xiong Yang ◽  
Hongbiao Cui ◽  
Xiaosheng Liu ◽  
Qiugang Wu ◽  
Hui Zhang
Keyword(s):  
Water Pollution ◽  
Assessment Methods ◽  
Chaohu Lake ◽  
Lake Basin ◽  
Pollution Characteristics ◽  
Chaohu Lake Basin
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