Spatial and Temporal Evolution Patterns of Habitat Quality under Tea Plantation Expansion and Multi-Scenario Simulation Study: Anxi County as an Example

Abstract

The expansion of tea plantations has caused changes in land use structure, which, in turn, has affected the regional habitat quality. Exploring the characteristics of changes in land use structure and habitat quality under different development scenarios is important for the formulation of regional land planning policies and the guarantee of ecological security. This study quantified the habitat quality of the study area from 2010 to 2020 based on the InVEST habitat quality module and explored the land use distribution patterns and habitat quality change characteristics under different scenarios in combination with the PLUS model. The results show that, from 2010 to 2020, the area of tea plantations expanded by 153.0126 km2, and the mean value of habitat quality increased from 0.6502 to 0.6919; in different development scenarios, the area of tea plantations was from large to small in the order of scenario 1 (871.2468), scenario 3 (599.4531) and scenario 2 (518.5440), and the mean value of habitat quality was from high to low in the order of scenario 1 (0.7385), scenario 2 (0.7162) and scenario 3 (0.6919). This study mainly explored the structural changes of land use and habitat quality evolution characteristics under different development scenarios in the study area, and the results of the study can provide a reference basis for rational land development and utilization and habitat conservation in the large-scale tea plantation area.

Keywords

• tea plantation expansion
• habitat quality
• scenario simulation
• InVEST model
• PLUS model