[1]FU Yangjun,SHI Xueyi,HE Juan.Characteristics of Spatial and Temporal Differentiation of Landscape Pattern Vulnerability in Fenhe River Basin[J].Research of Soil and Water Conservation,2020,27(03):197-202.
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Characteristics of Spatial and Temporal Differentiation of Landscape Pattern Vulnerability in Fenhe River Basin
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 03
Page number:
197-202
Column:
目次
Public date:
2020-04-20
- Title:
- Characteristics of Spatial and Temporal Differentiation of Landscape Pattern Vulnerability in Fenhe River Basin
- Keywords:
- landscape pattern vulnerability; spatial and temporal distribution; spatial autocorrelation; Fenhe River Basin.
- CLC:
- P901
- DOI:
- -
- Abstract:
- For the ecological protection and restoration and sustainable development of the river basin, the research on the vulnerability of its landscape pattern becomes particularly important. By constructing the landscape pattern vulnerability index and using the centroid and standard deviation ellipse, using exploratory spatial data analysis method as well, taking the Fenhe River Basin in the Loess hilly and gully region as the study area, we investigated the spatial and temporal evolution and spatial correlation of the landscape pattern fragility in the past 25 years. The results show that:(1)the landscape pattern fragility in the Fenhe River Basin generally demonstrated the increasing trend at first and decreasing trend later, and the spatial distribution of areas with high fragility became more dispersed from relative concentration from 1990 to 2015;(2)the barycentre of landscape pattern fragility moved northward gradually, and the standard deviation ellipse showed the spatial distribution pattern of ‘north-southwest', and the spatial distribution of fragility was more dispersed from 1990 to 2015;(3)the Moran's I of the landscape pattern fragility in the study area showed the positive correlation at a certain degree, the correlation degree increased at first and then decreased;(4)the spatial autocorrelation of the landscape pattern fragility in the study area had changed significantly in three periods: the high and low value areas showed spatial agglomeration, and the distribution trend converted to more dispersed pattern from relatively concentrated pattern. Natural factors such as topography and rivers affect the spatial distribution of landscape pattern vulnerability in Fenhe River basin, and human factors such as policy guidance and social and economic activities accelerate the change of landscape pattern vulnerability.
- References:
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Last Update:
2020-04-30