Response Relationship Between River Benthic Fauna Community Structure and Environmental Factors in Qinyuan County

Abstract

Benthic animals are an important part of aquatic ecosystem, and their distribution and population structure are deeply affected by environmental factors. As an important aquatic ecosystem, the diversity and abundance of benthic animals in rivers are regulated by a variety of environmental factors. Qinyuan County is a typical inland river area, and the changes of river ecological environment may have important effects on the distribution pattern of benthic animals. In order to reveal the effect of environmental factors on the population distribution of benthic fauna in Qinyuan County, the relationship between environmental factors and the characteristics of benthic fauna community was discussed by canonical correlation analysis. The results showed that river width (P=0.008) and flow velocity (P=0.042) were significant environmental factors, which had important effects on the distribution of benthic fauna. This study reveals the key role of water environmental factors, especially river width and velocity, in the distribution of river benthic communities in Qinyuan County, and provides scientific basis for further understanding of the structure and function of aquatic ecosystems in this area. At the same time, the research results also provide a reference for regional ecological protection and water resources management, especially in waters ecological restoration and biodiversity conservation.