[Objective] Based on the scale of network unit

the regional land use evolution and its ecosystem service value response characteristics from 1990 to 2019 were studied in order to provide decision-making basis for ecosystem protection and land spatial planning in rapid urbanization area represented by Gongyi City.[Methods] Based on the interpretation data of land use from 1990 to 2019 and the modified ESV equivalent at the grid scale

the ecosystem service value was estimated at Gongyi City

He'nan Province

and its spatial auto-correlation characteristics were discussed.[Results] ① During the study period

the growth rate of construction land in Gongyi City was the highest

on the contrary

the water area and shrubbery decreased significantly

with a decline of -45.17% and -10.09% respectively. In terms of land type transfer

the area of water and cultivated land was the most

and the main transfer out types were cultivated land and construction land. ② The value of ecosystem services showed a fluctuating downward trend

with a total decrease of 3.485 billion yuan in the past 30 years. Water area

arbor forest and cultivated land were the main components of ESV in Gongyi City. From the perspective of change characteristics

ESV in water area decreased significantly

with a total decrease of 3 554.9 million yuan. The regulation services dominated by hydrological regulation and climate regulation played a leading role in the composition of regional ESV

and its loss rate in the past 30 years was at a high level. ③ Spatial exploratory analysis showed that ESV had declined significantly in recent 30 years

and the negative effects of regional urbanization process on ecosystem were significant. The changes of high and low value areas of ESV in the north were mainly water area

cultivated land and construction land

while those in the south were mainly forestland and high coverage grassland

which were relatively stable. In 1990

the higher ESV areas were concentrated along the Yellow River

Yiluo River and Fuxi Mountain in the south

while the areas with lower ESV were mainly Gongyi City and the areas with relatively flat terrains in the east and the west. After 2000

the areas with higher ESV were rapidly reduced and mostly concentrated along the Yellow River. During 2000-2010

the low value ESV area in the main urban area gradually spread under the influence of rapid urban expansion. The low value concentration area of ESV had been formed in the urban area and the west and east oriented two belt areas of Gongyi City-Zhitian Town-Huiguo Town and Gongyi City-Zhulin Town-Mihe Town.[Conclusion] The expansion of construction land in Gongyi City is intensified

which leads to the continuous decline of regional ecosystem

and the spatial distribution is closely related to the development of human society and economy.