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A network-based approach for analyzing industrial green transformation: A case study of Beijing, China
Shi, Xiaoqing; Wang, Xue; Chen, Pan
2021-12-01
Source PublicationJOURNAL OF CLEANER PRODUCTION
ISSN0167-6369
Volume193Issue:12Pages:-
AbstractTo manage eutrophication of reservoirs, it is important to consider the potential for unexpected releases of organic phosphorus (OP) from areas around the reservoir where the water level fluctuates. In this study, we investigated the absorption and release of OP from a riparian soil/sediment from the Miyun Reservoir under fluctuating water levels using laboratory simulations. The total organic phosphorus (TOP) content in the soils/sediments ranged from 250.76 to 298.62 mg/kg, which accounted for between 5.6 and 38.5% of the total phosphorus (TP) content. We measured three OP fractions and found that the concentration of moderately labile OP (MLOP) was the highest, followed by labile OP (LOP), and the concentration of non-labile OP (NLOP) was the lowest. As the soils and sediments dried, they adsorbed phosphorus (P). The inorganic phosphorus (IP) contents were significantly and negatively correlated with the LOP and MLOP contents, indicating exchange between IP with these two fractions when the concentrations of bioavailable phosphorus in the soil are low. During flooding, the physicochemical properties varied at the sediment-water interface, inducing the release of Fe/Al-P. Some of the LOP and MLOP in the sediments were mineralized to IP. Our results suggest that when there are external P inputs, P may be released when sediments around a reservoir are subjected to wetting and drying as water levels fluctuate, which may cause P enrichment in reservoirs, especially in areas with poor water exchange.
Department城市与区域生态国家重点实验室
KeywordRiparian zone Organic phosphorus Absorption Transformation Release
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46708
Collection城市与区域生态国家重点实验室
AffiliationChinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
Recommended Citation
GB/T 7714
Shi, Xiaoqing,Wang, Xue,Chen, Pan. A network-based approach for analyzing industrial green transformation: A case study of Beijing, China[J]. JOURNAL OF CLEANER PRODUCTION,2021,193(12):-.
APA Shi, Xiaoqing,Wang, Xue,&Chen, Pan.(2021).A network-based approach for analyzing industrial green transformation: A case study of Beijing, China.JOURNAL OF CLEANER PRODUCTION,193(12),-.
MLA Shi, Xiaoqing,et al."A network-based approach for analyzing industrial green transformation: A case study of Beijing, China".JOURNAL OF CLEANER PRODUCTION 193.12(2021):-.
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