Impact of LUCC on Carbon Storage and Its Components in Hangzhou from 2000 to 2030
Terrestrial ecosystems can absorb and store large amounts of carbon,playing an important role in mitigating greenhouse effect.However,the accelerated urbanization process has led to a diversified transformation in land use patterns,which has a significant impact on regional carbon sink function.Therefore,understanding the relationship between land use change(LUCC)and carbon storage is of great significance for formulating climate change mitigation strategies.The coupled PLUS-InVEST model was used to investigate the impact of LUCC on carbon storage and its components in Hangzhou from 2000 to 2030.The results show that from 2000 to 2020,the main types of land use were forestland and cultivated land,showing a trend of decrease in cultivated land,forestland,and water bodies,and an expansion of grassland and construction land.The primary shift in land use was the conversion of farmland into construction land,with a total converted area of 642.59 km2.In 2000,2010,and 2020,the carbon storage was 2.74×108 t,2.73×108 t,and 2.72×108 t respectively.Under three scenari-os of natural development,cultivated land protection,and ecological protection,it is projected that by 2030,the carbon storage will decrease by 1.14×106 t,7.90×105 t,and 5.28×105 t respectively compared to 2020.The soil carbon storage exerted the most significant influence on the total carbon storage change,accounting for the largest proportion of 64.39％in the total car-bon storage variation.From 2000 to 2020,the transition from farmland to construction land exerted the most significant nega-tive influence on the changes in soil and total carbon storage.Similarly,the conversion of forestland had a negative impact on the changes in both total and soil carbon storage.However,the transformation of cultivated land into forestland and the conversion of water bodies into cultivated land had positive impacts on the change of both total and soil carbon storage.The re-sults can provide a scientific basis for the sustainable management of land use in Hangzhou under dual carbon goal.
万方数据
维普
