[1]DU Jun,ZHAO Shengchao,QIU Shike,et al.Land Use Change and Landscape Ecological Risk Assessment in Loess Hilly Region of Western Henan Province from 2000 to 2015[J].Research of Soil and Water Conservation,2021,28(01):279-284.
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Land Use Change and Landscape Ecological Risk Assessment in Loess Hilly Region of Western Henan Province from 2000 to 2015
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 01
Page number:
279-284
Column:
Public date:
2021-01-10
- Title:
- Land Use Change and Landscape Ecological Risk Assessment in Loess Hilly Region of Western Henan Province from 2000 to 2015
- Keywords:
- loess hilly region of western Henan Province; land use; landscape ecological risk; spatial autocorrelation analysis
- CLC:
- F301.24
- DOI:
- -
- Abstract:
- Based on the data of land use of 2000, 2010 and 2015, we analyzed the characteristics of land use dynamic change in the loess hilly area of western Henan Province from 2000 to 2015 through the spatial change of land use area, transfer matrix. The study area is divided into 1 069 ecological risk assessment units according to the 5 km×5 km grid. The ecological risk index was constructed by type proportion, landscape vulnerability index and disturbance index, and the spatial analysis methods of semi-variogram and spatial autocorrelation were used to evaluate the spatial differentiation characteristics of land use change and landscape ecological risk in the loess hilly area of western Henan Province from 2000 to 2015. In the loess hilly area of western Henan Province, woodland and cultivated land were the main types, accounting for more than 83% of the total research area. From 2000 to 2015, the conversion intensity of land use types was also increasing, and the conversion from cultivated land and forest land to construction land was the most obvious. From 2000 to 2015, the overall landscape ecological risk was on the rise, and the matrix landscape types of high ecological risk areas were mainly cultivated land; with respect to the spatial concentration of ecological risk value, the main patterns were low—low agglomeration and high—high agglomeration, showing the trend of increasing low agglomeration area and decreasing high—high agglomeration area.
- References:
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Last Update:
2021-01-15