Shan YAO, Xuan-ling ZHANG, Yu-xin CAI, Lian-qiong HE, Jia-tong LI, Xiao-long WANG, Ying LIU. Study on Distribution Characteristics of Different Nitrogen and Phosphorus Fractions by Spectrophotometry in Baiyangdian Lake and Source Analysis[J]. Spectroscopy and Spectral Analysis, 2022, 42(4): 1306
- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 4, 1306 (2022)
Fig. 1. Distribution map of sampling points
Fig. 2. Water quality evaluation and eutrophication type evaluation in water
Fig. 3. N (a) and P (b) fractions concentrations in each sampling sites in water
Fig. 4. N and P pullution evaluation of sediment with reference to evaluation standard and composite pollution index
(a): N and P pullution evaluation of sediment with reference to evaluation; (b): N and P pullution evelution of composite pollution index
(a): N and P pullution evaluation of sediment with reference to evaluation; (b): N and P pullution evelution of composite pollution index
Fig. 5. N (a) and P (b) fractions concentrations in each sampling sites in sediment
Fig. 6. N, P pollution of Spatial distribution map based on PCA scores
Fig. 7. The contribution of different sources to various nitrogen and phosphorus fractions according to the APCS-MLR receptor model
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