Shan Yongjie, Yuan Weili, Miao Yuan, et al. Spatiotemporal Variation of Ecosystem Service Value in Datong City of Shanxi Province During 2000-2019[J]. Bulletin of Soiland Water Conservation, 2021, 41(6): 310-317.
DOI:
Shan Yongjie, Yuan Weili, Miao Yuan, et al. Spatiotemporal Variation of Ecosystem Service Value in Datong City of Shanxi Province During 2000-2019[J]. Bulletin of Soiland Water Conservation, 2021, 41(6): 310-317. DOI: 10.13961/j.cnki.stbctb.2021.06.040.
Spatiotemporal Variation of Ecosystem Service Value in Datong City of Shanxi Province During 2000-2019
[Objective] The spatial and temporal characteristics of ecosystem service value (ESV) in Datong City of Shanxi Province after returning farmland to forestland was analyzed
in order to provide a reference for land spatial planning and ecological restoration project in Datong City.[Methods] The remote sensing image of Landsat TM/ETM was used as the data source
and RS and GIS technology was used to extract the land use data of 2000
2005
2010
2015 and 2019 in the study area. Based on the land use dynamic and land use transfer matrix
the land use change of Datong in recent 20 years was revealed
and the value equivalent method was used to analyze the ecosystem service value of Datong City.[Results] ① In recent 20 years
cultivated land
grassland and woodland were the main land use types in Datong City
and the dynamic attitude of comprehensive land use was the highest from 2005 to 2010. The land use transfer was mainly from grassland to woodland
and from cultivated land to construction land. ② The overall ecosystem service value of Datong City decreased significantly
and the total value decreased by 316 million in 20 years. ③ The values of each individual ecosystem service function were as follows:regulating service> supporting service> supplying service> cultural service. ④ Ecosystem service value of each district and county was divided into five levels
and the overall trend of spatial distribution was higher in the south and lower in the north
showing a fluctuating state.[Conclusion] Woodland and grassland contributed the most to ecosystem services
and the negative value of construction land was very high. Therefore
in the land spatial planning
people should improve the utilization efficiency of construction land
control the scale of construction land
and focus on the constructed woodland and grassland in the ecological restoration project.
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references
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