FORMS AND DIFFERENCES OF PHOSPHORUS OCCURRENCE IN SEDIMENTS OF LAKES WITH DIFFERENT EUTROPHIC TYPES IN JIANGXI PROVINCE

JIANG Li-wen; LI Ming-min; YANG Yin; LIU Lu-ming; FENG Gui-zhen

doi:10.13205/j.hjgc.202009008

Volume 38 Issue 9

Nov. 2020

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2020 > 38(9): 48-52,167

WANG Lili. SEPARATION PERFORMANCE OF OIL-WATER-SLUDGE IN HORIZONTAL GRID TUBES[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(6): 54-62. doi: 10.13205/j.hjgc.202406007

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JIANG Li-wen, LI Ming-min, YANG Yin, LIU Lu-ming, FENG Gui-zhen. FORMS AND DIFFERENCES OF PHOSPHORUS OCCURRENCE IN SEDIMENTS OF LAKES WITH DIFFERENT EUTROPHIC TYPES IN JIANGXI PROVINCE[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(9): 48-52,167. doi: 10.13205/j.hjgc.202009008

WANG Lili. SEPARATION PERFORMANCE OF OIL-WATER-SLUDGE IN HORIZONTAL GRID TUBES[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(6): 54-62. doi: 10.13205/j.hjgc.202406007

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FORMS AND DIFFERENCES OF PHOSPHORUS OCCURRENCE IN SEDIMENTS OF LAKES WITH DIFFERENT EUTROPHIC TYPES IN JIANGXI PROVINCE

doi: 10.13205/j.hjgc.202009008

School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China

Received Date: 2019-05-30

Abstract

Abstract

Taking 11 moderately-eutrophic lakes and 7 lightly-eutrophic lakes in Jiangxi Province as the research objects, Pearson correlation analysis and principal component analysis were used to study the phosphorus occurrence forms, characteristics, forms and sources of sediments from the two types of lakes. The results showed that in the analysis of phosphorus forms, the average content of all forms of phosphorus in the two types of lakes was in the sequence of TP>IP>Fe/Al-P>Ca-P>OP, and the average content of the moderately-eutrophic lakes was lower than the lightly-eutrophic lakes. IP, Fe/Al-P, Ca-P, OP accounted for the average weight ratio of TP of the moderately-eutrophic lakes was 75.08%, 54.22%, 27.89%, 20.64% and for the lightly-eutrophic lakes was 72.85%, 56.02% 27.31%, 26.76%. The main source of phosphorus form was IP, supplemented by OP, while IP was mainly dominated by Fe/Al-P. Correlation analysis showed that TP-IP and TP-Fe/Al-P in both types of lakes were significantly correlated at α=0.05. In the moderately-eutrophic lakes, IP-Fe/Al-P was correlated at α=0.10, and IP-Fe/Al-P in the lightly-eutrophic lakes were significantly correlated at α=0.05; principal component analysis showed that the dominating type of influencing factors of the moderately-eutrophic lakes were Fe/Al-P and OP, and the secondary type of impact factors were IP and Ca-P, and the influencing factors of the lightly-eutrophic lakes were Fe/Al-P, OP and Ca-P; the difference in phosphorus morphological characteristics of sediments in two types of lakes mainly depended on Fe/Al-P. The difference in phosphorus occurrence characteristics of sediments in the moderately-eutrophic lakes was mainly determined by unsteady phosphorus or bioavailable phosphorus. The lightly-eutrophic lakes was determined by TP. This study could provide a reference for the study of phosphorus occurrence patterns in sediments of lakes with different eutrophication types.
- moderately-eutrophic lakes,
- lightly-eutrophic lakes,
- phosphorus occurrence forms,
- characteristics,
- differences

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