Liu Run, Jiang Qigang, Shi Pengfei, et al. Change of Land Use Pattern and Ecological Environment Effect in Fushun City of Liaoning Province from 2000 to 2020[J]. Bulletin of Soiland Water Conservation, 2021, 41(6): 353-360.
DOI:
Liu Run, Jiang Qigang, Shi Pengfei, et al. Change of Land Use Pattern and Ecological Environment Effect in Fushun City of Liaoning Province from 2000 to 2020[J]. Bulletin of Soiland Water Conservation, 2021, 41(6): 353-360. DOI: 10.13961/j.cnki.stbctb.2021.06.045.
Change of Land Use Pattern and Ecological Environment Effect in Fushun City of Liaoning Province from 2000 to 2020
[Objective] The spatiotemporal change characteristics of land use pattern and the effect of ecological environment in Fushun City
Liaoning Province after returning farmland to forestland were discussed
in order to provide reference for the optimization of land use structure in this area.[Methods] Based on the remote sensing images in 2000
2010 and 2020
the spatial and temporal change characteristics of land use pattern and the ecological environment effect in Fushun City were quantitatively analyzed by using the methods of land use dynamic degree
land use degree comprehensive index
land use transfer matrix
NDVI difference analysis and regional ecological environment quality index.[Results] ① From 2000 to 2020
there was a mutual transformation relationship between various land types in the study area
among which
the change of woodland and cultivated land was more obvious. During the past 20 years
the area of cultivated land decreased by 825.59 km2
with a growth rate of -7.32%. Forest land area increased by 591.14 km2
with a growth rate of 5.24%. Urban land area increased by 182.36 km2
with a growth rate of 1.62%. ② In 2000
2010 and 2020
the comprehensive index of land use degree in the study area was 224.48
225.57 and 226.12
respectively
with year-on-year growth of 0.49% and 0.24%. The intensity of land development and utilization in the study area increased slowly. ③ During the past 20 years
the vegetation coverage in the study area showed an upward trend. The decreased areas of NDVI basically coincided with the expanding areas of urban land. ④ The environmental quality index of land use transition in the three periods were 0.744 8
0.775 4 and 0.782 6
respectively. During the past 10 years
the environmental quality index increased by 4.11% and 0.93%
respectively
and the overall environmental quality showed an upward trend.[Conclusion] In the past 20 years
the rapid urbanization process in the study area has been promoted
the overall environmental quality has been improved
and the improvement and deterioration of ecological environmental quality coexist in some local areas. The transformation among urban land
cultivated land and woodland is the main reason. The environmental protection policies such as returning arable land to forest make the environmental quality in the study area continuously improve. But the upward trend flattens out over time.
关键词
Keywords
references
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