Journal ArticleDOI
Factor Analysis and Dynamics of Water Quality of the Songhua River Northeast China
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TLDR
In this article, the water quality of the Songhua river was analyzed using factor analysis, which comprehensively considered six water quality indices of each monitoring section and showed that the main pollutants had changed to nitrogenous pollutants originated from non-pointsources, and water quality was variable in differenthydrological periods.Abstract:
The water quality of the Songhua River (Northeast China) was of concern, especially in the 1980s and early 1990s, and there weremany studies carried out on this aspect However, only one or several independent water quality indiceswere used to consider the effects of pollutants on thewater quality, for instance, heavy metal and toxic organicpollutants The combined effects of multiple indices wereseldom studied In this article, based on the environmentalmonitoring data, the water quality of the Songhua River wasanalyzed using factor analysis, which comprehensivelyconsidered six indices of water quality of each monitoringsection The results showed that the main pollutants hadchanged to nitrogenous pollutants originated from nonpointsources, and water quality was variable in differenthydrological periods The results also showed that themethod was comprehensive and efficient in analyzing thedynamics of water qualityread more
Citations
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Journal ArticleDOI
Assessment of surface water quality using multivariate statistical techniques in red soil hilly region: a case study of Xiangjiang watershed, China
Qi Zhang,Zhongwu Li,Guangming Zeng,Jianbing Li,Jianbing Li,Yong Fang,Qingshui Yuan,Yamei Wang,Fangyi Ye +8 more
TL;DR: Multivariate statistical methods including factor, principal component and cluster analysis were applied to analyze surface water quality data sets obtained from Xiangjiang watershed, and indicate that the parameters for water quality variations are mainly related to dissolve heavy metals.
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The effects of raindrop impact and runoff detachment on hillslope soil erosion and soil aggregate loss in the Mollisol region of Northeast China
TL;DR: Wang et al. as mentioned in this paper conducted a laboratory study to quantify the effects of raindrop impact and runoff detachment on soil erosion and soil aggregate loss during hillslope erosion processes; however, few attempts have been made to investigate which one plays the dominant role in soil aggregate losses.
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A long-term study of temporal hydrochemical data in a shallow lake using multivariate statistical techniques
TL;DR: In this paper, the multivariate statistical techniques R-and Q-mode factor analysis and discriminant analysis were applied to a dataset containing physicochemical parameters in lake water samples collected from a shallow (∼4 m) lake located in northwest Greece during a 10-year (1981-1991) monitoring program.
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Surface water quality assessment using factor analysis
TL;DR: In this paper, a factor analysis technique is applied to surface water quality data sets obtained from the Buyuk Menderes River Basin, Turkey, during two different hydrological periods.
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Identification of anthropogenic influences on water quality of rivers in Taihu watershed
TL;DR: In this article, the impact of human activities on spatial variation in the water quality of 19 rivers in the Tailm watershed was assessed and examined by applying multivariate statistical techniques to identify characteristics of water quality in the studied rivers.
References
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Journal ArticleDOI
Applications of GIS to the Modeling of NonPoint Source Pollutants in the Vadose Zone: A Conference Overview
Dennis L. Corwin,R. J. Wagenet +1 more
TL;DR: In this paper, a brief overview of the modeling of NPS pollutants with GIS is provided and a brief discussion of some of the papers presented at the ASA-CSSA-SSSA 1995 Bouyoucos Conference entitled Applications of GIS to the Modeling of Nonpoint Source Pollutants in the Vadose Zone.
Journal ArticleDOI
Predicting Land Use Impacts on Regional Scale Groundwater Recharge and Discharge
TL;DR: In this article, the authors present the development and evaluation of methods that estimate recharge and discharge, water flow, and salt fluxes in rivers and provide an inferential framework to predict dryland salinity and the selection of the appropriate management scenarios.
Journal ArticleDOI
Advanced Information Technologies for Assessing Nonpoint Source Pollution in the Vadose Zone: Conference Overview
TL;DR: In this paper, the authors examined current multidisciplinary technologies and methodologies for assessing non-point source pollution in the vadose zone and explored new conceptual approaches for the real-time measurement and modeling of NPS pollution.
Journal Article
Analysis of Dynamic Variations and Forming Reasons of Nourishment Material in Songhua Lake
TL;DR: By analyzing the monitoring data on the prime pollutants in the province control sections of Songhua Lake from 1989 to 1997, it was found that the variation of the nourishment salts is very great in the water.
Journal Article
Study on the water quality polluting and contributing factors of Songhua Lake
TL;DR: By analyzing the important pollutants' monitor data of the sections which are under the control of Jilin province in Songhua Lake, the thesis studies and evaluates the state of water pollution and its change as mentioned in this paper.
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