文献类型：期刊文献

英文题名：Effect of Human Activities on Characteristics of Water Nitrogen and Phosphorus in Plain Water Network in Theyangtze River Delta

作者：Yin, Yuan-Feng[1,2] Liu, Peng-Cheng[2] Shao, Xuexin[1] Li, Niu[1] Wu, Jinlong[1] Wu, Ming[1] Jiao, Shengwu[1] Zhang, Long[1] Lin, Xing-Na[1]

第一作者：Yin, Yuan-Feng

机构：[1] State Key Laboratory of Wetland Conservation and Restoration, Wetland Ecosystem Research Station of Hangzhou Bay, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China; [2] College of Ecology and Environment, Anhui Normal University, Wuhu, China

年份：2025

外文期刊名：SSRN

收录：EI(收录号：20250110849)

语种：英文

外文关键词：Rivers

摘要：Excess levels of nitrogen and phosphorus affect water quality and may contribute to eutrophication. Many studies have focused on the effects of human activities on water nitrogen and phosphorus dynamics in mountainous streams; however, water nitrogen and phosphorus dynamics under different land uses in plain water networks remain unclear, especially in regions undergoing rapid urbanization. In this study, water nitrogen and phosphorus concentrations in a plain water network in the Yangtze River Delta were measured to investigate the effects of land use on water quality. The results showed that (1) regions with intensive aquaculture and industrial activities exhibit higher nitrogen and phosphorus concentrations. In contrast, areas with less human disturbance, such as artificial forests and reservoirs, show better water quality; (2) seasonal fluctuations of total phosphorus in different water surfaces were caused by the combined effects of water temperature, the scouring, and diluting of runoff; (3) significant differences in NO3-N levels between the dry and wet seasons is due to the combined effects of environmental factors and water nitrogen cycling processes. The results of this study indicate that intensive human activities negatively impact water quality. This research can provide a scientific basis for urban planning and water quality improvement in plain water network areas. ? 2025, The Authors. All rights reserved.