[1]ZHANG Zhenzhen,XIONG Kangning,HUANG Denghong.Analysis on the Spatiotemporal Change and Influence Factors of Vegetation Cover in Fanjingshan Mountain over the Last 30 Years[J].Research of Soil and Water Conservation,2018,25(02):183-189.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 02
Page number:
183-189
Column:
Public date:
2018-04-03
- Title:
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Analysis on the Spatiotemporal Change and Influence Factors of Vegetation Cover in Fanjingshan Mountain over the Last 30 Years
- Author(s):
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ZHANG Zhenzhen, XIONG Kangning, HUANG Denghong
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School of Karst Science, Guizhou Normal University/State Engineering Technology Institute for Karst Desertification Control, Guiyang 550001, China
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- Keywords:
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vegetation coverage; spatiotemporal variation; topography; anthropogenic activities; remote sensing monitoring; World Natural Heritage
- CLC:
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Q948.15;P463.22
- DOI:
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- Abstract:
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Fanjingshan National Nature Reserve was selected as a nominated World Natural Heritage for its unique advantages in biodiversity and ecological process. To reveal the correlation between the spatial distribution of vegetation coverage and environment factors and the variation of the former, Landsat TM/ETM/OLI remote sensing images in 1990, 2002 and 2016 were selected to extract vegetation coverage and land use data and analyze the temporal and spatial variation characteristics of vegetation caverage in Fanjingshan. The results showed that:(1) over the past three decades, vegetation coverage decreased first and then increased, and the sensitivity of vegetation coverage change in the buffer zone was higher than that in the nominated property; (2) the terrain factor influenced the spatial distribution of each grade vegetation coverage in water and heat conditions at different degrees; the vegetation coverage in low mountain (< 900 m) and mid-low mountain (900~1 600 m) was high, which accounted for a larger proportion of the area; the vegetation coverage in slope, abrupt slope and steep slope accounted for 33.33%, 28.48% and 12.18%, respectively; the vegetation coverage in sunny slope and semi sunny slope was higher than that in shady slope and semi shady slope, and the difference was obvious; (3) with the gradual transformation of surface landscape caused by anthropogenic activities, the vegetation coverage change appeared blocky and striped spatial agglomeration; the urbanization in the buffer zone had brought increasing pressure to ecological environment; the construction of tourist facilities in the nominated property had led to the decreasing trend of vegetation coverage.