[1]LIN Yiling,MA Changdi,LIU Jiping.Landscape Naturality and Dynamic Change in the Western Songnen Plain[J].Research of Soil and Water Conservation,2020,27(01):227-232,239.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 01
Page number:
227-232,239
Column:
Public date:
2020-02-20
- Title:
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Landscape Naturality and Dynamic Change in the Western Songnen Plain
- Author(s):
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LIN Yiling, MA Changdi, LIU Jiping
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(Institute of Resource Conservation and Utilization, Jilin Normal University, Siping, Jilin 136000, China)
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- Keywords:
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landscape naturalness; comprehensive evaluation method; the Western Songnen Plain
- CLC:
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P901
- DOI:
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- Abstract:
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In order to explore the extent undisturbed by human in the Western Songnen Plain, this paper took the Western Songnen Plain as research area, and constructed an evaluation system of including 13 indexes on the basis of the PSR model based on 3S technology, combined with AHP and Shannon’s Entropy model to quantitatively evaluate the feature of landscape naturality in the Western Songnen Plain from 1985 to 2015, and analyzed the dynamic change and feature of spatial aggregation. The results showed that from 1985 to 2015, the landscape naturality in the Western Songnen Plain decreased by 14% and presented the tendency of fast decline at first and then slow decrease, the two main reasons for the decline of landscape naturality were that pressure indicators increased by 56% and response indicator decreased by 9.07%. The proportion of nature landscape was the most important factor on landscape naturality and its weight was 0.176. The landscape naturality of the nature reserve was higher than urban area. Moreover, the landscape naturality in some natural reserves represented by Zhalong National Natural Reserve presented the constant increasing tendency. The spatial autocorrelation of landscape naturality in research area had a big difference between north and south, that is, the high-high autocorrelation mainly concentrated in the north of the research area, while the low-low autocorrelation mainly concentrated in the south of the research area.