Spatio-temporal analysis of landscape pattern in water network area of Southern China-- A case study of Shuifumiao Reservoir basin in Hunan Province

Abstract

Landscape pattern research is the premise of maintaining the stability of ecosystem structure, and is of great significance in guiding the orderly and rational planning of territorial space. In order to deal with the risk of landscape fragmentation of ecological environment in southern hilly region, taking Shuifumiao Reservoir basin of Hunan province as an example, Fragstats landscape pattern analysis software was used to analyze the landscape fragmentation. The patch area, patch number, density index, aggregation index, edge density, patch number, diversity index, evenness index, patch density, aggregation index, and sprawl index of each landscape type were obtained from 2002 to 2018, and the landscape pattern in this region was characterized by fragmentation. Finally, three rationalization landscape pattern optimization strategies were proposed to maintain the stability of regional landscape pattern and alleviate the negative impact of landscape fragmentation.