土地整治区域生态资产的变化研究——以上海市松江区泖港镇为例

Using multi-temporal GF-2 imagery and meteorological, soil, and socio-economic data, we analyzed the changes in ecological assets and the dominant factors in Maogang town in 2017, 2019, and 2022 by accounting for the area, quality, and ecological service value. Results show that: (1) From 2017 to 2022, towns of the research area continued expanding, while forest ecosystem area and quality decreased before land reclamation. After land consolidation from 2019 to 2022, forest ecosystem area and quality were restored. Analyzed by the Eco-Asset Composite Index,Maogang's Ecological Asset Composite Index was 49. 54 in 2017, 46. 26 in 2019, and 50. 38 in 2022, Maogang's Eco-Asset Composite Index decreased and then increased. (2) The ecological service value (ESV) of Maogang decreased from $4. 9062 billion in 2017 to $4. 5597 billion in 2019 before the land consolidation was carried out. After land consolidation is carried out, ESV increases to $4. 9337 billion in 2022, of which the ESV of villages in key areas of land consolidation increases by 10. 80%, and the ESV of villages in non-key areas of land consolidation increases by 7. 23%. This reveals that the land consolidation measures have brought about a certain degree of ecological and economic effectiveness. (3) CP, POP, GDP, Slope, and DEM have a negative correlation with ESV, and PRE shows a positive correlation with ESV. Socio-economic factors CP, POP, and GDP have a more significant influence on ESV compared to natural factors, indicating that the intensity of human activities has a more obvious influence on the change of ecological assets compared to natural factors.