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[1]LU Yafang,LI Hongbo.Temporal and Spatial Dynamic Evolution of Habitat Quality Based on Land Use Change from 2000 to 2020[J].Research of Soil and Water Conservation,2022,29(06):391-398.

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Temporal and Spatial Dynamic Evolution of Habitat Quality Based on Land Use Change from 2000 to 2020

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 29 Number of periods: 2022 06 Page number: 391-398 Column: Public date: 2022-10-20

Title:: Temporal and Spatial Dynamic Evolution of Habitat Quality Based on Land Use Change from 2000 to 2020

Author(s):: LU Yafang, LI Hongbo; (College of Public Administration, Huazhong Agricultural University, Wuhan 430070, China)

Keywords:: land use; habitat quality; Invest model

CLC:: X821; F301.24

DOI:: -

Abstract:: Land use change directly disturbs habitat quality, resulting in the instability of the land spatial ecological structure process and the degradation of its service function. In order to analyse the temporal and spatial evolution characteristics of habitat quality in the Wuhan metropolitan region and explore the impact of land use change on habitat quality, based on the land use data of 2000, 2010 and 2018, this study uses the habitat quality module of the invest model to explore the spatiotemporal evolution characteristics of habitat quality caused by land use change in Wuhan metropolitan area. The results show that:(1)The land use change in the Wuhan City circle is mainly manifested by the reduction of cultivated land and the expansion of construction land. The net transfer out area of cultivated land is 1 470.92 km². The net transfer in area of construction land is 1 340.61 km².(2)From 2000 to 2020, the habitat quality of the Wuhan urban circle changed slightly. 87% of the regional habitat quality levels remained unchanged, mainly staying in the ‘general' and ‘excellent' levels. The habitat quality grade increased in 6% of the regions. 7% of the regional habitat quality grade decreased, and the overall habitat quality was good.(3)Low habitat(poor, general)is mainly distributed in the core area of urban economic development and surrounding areas. Higher habitats(good and Excellent)are generally distributed in the northeast and southeast of the Wuhan City circle.(4)From 2000 to 2020, the conversion rates of cultivated land and unused land into water area, construction land into cultivated land and grassland into forest land had the greatest positive impact, with CI values of 2.271 9, 0.509 1, 0.421 4 and 0.226 2 respectively. The conversion of cultivated land to water area, forest land to cultivated land and construction land had the greatest negative impact on habitat quality, with CI values of -3.350 6, -1.490 9 and -1.409 9 respectively. The conversion of water area and forest land into construction land and unused land, and the conversion of cultivated land and grassland into construction land and unused land will bring negative effects. To sum up, the rapid expansion of construction land and population growth accelerated the degradation of habitat quality. In order to promote ecosystem protection and restoration through land use, we need to enhance the system's flexibility to adapt to changing environment.

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Last Update: 2022-10-20