Change and Prediction of Water Purification Function in the South Bank of Hangzhou Bay in the Past 20 Years

• Published in: Huanjing kexue Vol. 45; no. 3; p. 1502
• Main Authors: Wang, Shan-Shan, Cao, Gong-Ping, Xu, Ming-Wei, Huang, Jun-Bao, Zeng, Jian
• Format: Journal Article
• Language: Chinese
• Published: China 08.03.2024
• Subjects: the south bank of Hangzhou Bay; InVEST model; water purification; integrated land-sea coordination; prediction research; spatio-temporal variation
• ISSN: 0250-3301
• DOI: 10.13227/j.hjkx.202303248

The investigation of regional water purification functionality and its influencing factors holds significant pragmatic implications in understanding the potential of regional water purification, guiding context-specific regional comprehensive planning schemes, and environmental conservation measures. The study site, situated along the southern coast of Hangzhou Bay, represents a prototypical region characterized by intricate land-sea interactions that bear substantial economic and ecological functions. By assimilating a meticulously collected topographical and land-use dataset, in conjunction with site-specific meteorological records, the water purification model embedded within the integrated valuation of ecosystem services and trade-offs (InVEST) framework was employed to scrutinize the spatiotemporal dynamics of nitrogen (N) and phosphorus (P) loads, discharges, and removals within the southern coast of Hangzhou Bay. The prime objective of this study was to unravel the differentials in water purification f