Variation Significance of Reclaimed Water Qualities and Irrigation Suitability in Beijing, China
Bioinformatics and Biomedical Engineering（2010）
Abstract
The qualities of reclaimed water influence the security and suitability of agricultural irrigation largely, which could be represented by indices total salt content, ALK, LAS, coliform groups and TN. What is the rule of variation of water qualities? The method of principle component analysis (PCA) and analysis of variance (ANOVA) could give the best answer. The result showed not only total salt content, ALK, LAS but also nutrition component in reclaimed water such as NO3-, PO43-, TP and organic compound reduce. Which presents two different meanings, one side, the phenomenon could be in favor of reducing irrigation risk by reducing risk of salination, injurant diffusing and pollution of ground water, on the other hand, the nutrient component reduce meanwhile and counteract the function of reclaimed water as nutrient source.
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Key words
water quality,variance analysis,reclaimed water qualities,las,reclaimed water,tn,variation significance,security,groundwater,po4,reclaimed water influence,nitrogen compounds,ground water pollution,total salt content,anova,no,pca,irrigation,suitability,agricultural irrigation,coliform,agriculture irrigation,irrigation suitability,phosphorus compounds,injurant diffusion,principal component analysis,principle component analysis,water pollution,salination,alk,analysis of variance,conductivity,ground water,solids,water resources,chemicals,wastewater,indexes
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