Temporal and Spatial Changes of Nitrogen and Phosphorus Loads in Plateau Shallow Lakes and Analysis of Their Influencing Factors

Abstract

As important freshwater resources, the water quality of plateau shallow lakes is directly related to the ecological environment and
residents life in the surrounding areas. In recent years, with the expansion of agricultural activities, the acceleration of urbanization, and the
increase in the intensity of human activities, the plateau shallow lakes are facing the serious challenges of increasing nitrogen and phosphorus
loads and deteriorating water quality. Therefore, this paper collects and analyzes historical data to reveal the seasonal changes in nitrogen and
phosphorus loads in lakes and their relationship with natural processes such as rainfall and runoff, aiming to comprehensively explore the spatial and temporal characteristics of nitrogen and phosphorus loads in plateau shallow lakes and the multiple influencing factors behind them to
provide a scientific basis and references for the management of water quality and ecological protection of plateau shallow lakes.