[1]LI Yating,ZHAO Mudan,ZHANG Shuaibing,et al.Analysis of the Characteristics of Land Utilization Ecological Risk Space of Meixian County Based on Landscape Structure[J].Research of Soil and Water Conservation,2018,25(05):220-225,233.
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Analysis of the Characteristics of Land Utilization Ecological Risk Space of Meixian County Based on Landscape Structure
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 05
Page number:
220-225,233
Column:
Public date:
2018-09-06
- Title:
- Analysis of the Characteristics of Land Utilization Ecological Risk Space of Meixian County Based on Landscape Structure
- Keywords:
- Meixian county; landscape pattern; ecological risk; land use
- CLC:
- F301.24
- DOI:
- -
- Abstract:
- In this paper, with the support of GIS and RS technology, taking Meixian as the study area, based on the remote sensing images in 2005, 2010 and 2015, we obtained the data of land use type, divided into 1 km×1 km grid as the research unit. Based on landscape disturbance index and landscape construction of ecological vulnerability index system model, spatial analysis with geostatistics and GIS software, the space of ecological risk of land use change of Meixian under the influence of the variation was quantitatively evaluated. The results showed that the construction land and woodland areas increased year by year in Meixian County, the cultivated land and unused land area reduced, land use degree increased. Spatial autocorrelation analysis showed that high-high values (H-H) concentrated in the gathering area near the northern town, Changxing Town and Shoushan Town, low value and low value (L-L) gathering area mainly distributed in the study area boundary, showing the overall trend of gradual increase of ecological risk level of land use Meixian; high-risk areas mainly concentrated in the vicinity of the northern town, Changxing Town and Shoushan Town, the regional risk level increased most significantly, the southern ecological risk was generally low, formatting the situation of high risk in north and low risk in south, higher risk area was gradually expanding. These results can provide reference for the construction of regional ecological security pattern and the optimal layout of land use.
- References:
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1900-01-01