[1]LI Hui,WANG Fuhai,LI Bin,et al.Spatial and Temporal Variation and Response of Landscape Pattern and Land Surface Characteristic Parameters in Large River Island[J].Research of Soil and Water Conservation,2021,28(03):308-315.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 03
Page number:
308-315
Column:
Public date:
2021-04-20
- Title:
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Spatial and Temporal Variation and Response of Landscape Pattern and Land Surface Characteristic Parameters in Large River Island
- Author(s):
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LI Hui1,2, WANG Fuhai1,2, LI Bin3, PANG Min4
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(1.Chongqing Key Laboratory of Spatial Information Data Mining and Big Data Integration of Ecological Environment,Chongqing 401320,China;2.Chongqing Finance and Economics College,Chongqing 401320,China;3.School of Public Administration,Chongqing Technology and Business University,Chongqing 400067,China;4.Chongqing Planning and Natural Resources Survey and Monitoring Institute Chongqing 401121,China)
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- Keywords:
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surface characteristic parameters; landscape pattern; temporal and spatial response; island
- CLC:
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X16
- DOI:
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-
- Abstract:
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The surface characteristic parameter is an important indicator of the quality of ecological environment, and the landscape pattern is an important driving force for the change of the surface characteristic parameter. Based on the Landsat TM/Landsat 8 OLI remote sensing images in 2002, 2010 and 2018, we analyzed the temporal and spatial evolution characteristics of landscape pattern and surface characteristic parameters of Guangyang Island by using 3S technology, landscape pattern index correlation model, NDVI model, surface temperature model and soil moisture model, and excavated and analyzed the response relationship between surface parameters and landscape pattern. The results show that:(1)the landscape pattern of the study area changed greatly, and the spatial heterogeneity of various landscapes was obvious, and cultivated land was the main landscape matrix of the island;(2)the landscape fragmentation showed an increasing trend, and the landscape overall tended to be unstable;(3)the vegetation coverage and surface temperature showed a trend of first rising and then falling, and later showed two-stage differentiation;(4)the soil moisture showed a trend of first stabilizing and then dramatic;(5)the response of land surface characteristic parameters to landscape pattern was obvious, and human intervention made regional ecological benefits decline. This study can provide a scientific reference for optimizing the ecological security pattern of river basin and reasonably planning and managing land resources.