[Correlation Between LDI-based Land Use Types and Water Quality in Sanshan Island of Taihu Lake National Wetland Park, Suzhou].

Sanshan island of Taihu Lake National Wetland Park in Suzhou was taken as a case study to explore the relationship between land use types and water quality under different spatial and temporal conditions.Firstly,principal component analysis was used to calculate the comprehensive index of water quality for a given sampling site.Secondly,landscape development intensity index (LDI),which can represent combined effects of land use types,was calculated based on GIS spatial analysis technology.