[1]HUANG Chaohai,GAO Huaduan,FU Jing,et al.Effects of Different Petrofabric Types on Landscape Pattern of Regional Soil Erosion in Pu’an County[J].Research of Soil and Water Conservation,2019,26(02):31-36.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 02
Page number:
31-36
Column:
Public date:
2019-04-28
- Title:
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Effects of Different Petrofabric Types on Landscape Pattern of Regional Soil Erosion in Pu’an County
- Author(s):
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HUANG Chaohai, GAO Huaduan, FU Jing, XU Yongfu
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College Of Forestry, GuiZhou University, Guiyang 550025, China
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- Keywords:
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Pu’an County; petrofabric types; soil erosion; landscape pattern
- CLC:
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S157
- DOI:
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- Abstract:
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This study took the soil erosion landscapes of different petrofabric types in dolomite, limestone, sand shale, and basalt in Pu’an County as the research objects. Based on the module spatial analysis technology developed by spatial analysis in ArcGIS software and landscape pattern spatial analysis methods in landscape ecology, we examined the effects of different petrofabric types on the landscape pattern of regional soil erosion from the macroscopic spatial scale. The results show that: the distribution patterns of petrofabric in Pu’an County are dominated by dolomite, followed by limestone, and shale and basalt are less in area; the overall degree of erosion is not high in the limestone area, but the local erosion is more serious; the characteristics of landscape patterns of soil erosion in Pu’an County are as followings, slight erosion is a landscape matrix of soil erosion landscapes in four kinds of stratigraphic petrofabric, the patches of slight erosion landscape concentrate among the spatial distribution with low heterogeneity and high uniformity index, the maximum area percentages of extremely intensive erosion and intensive erosion, and patch area are the smallest, the patches are far apart and broken in space distribution, and the connectivity is low; the landscape patterns of soil erosion in different petrofabrics in Pu’an County are different, the landscape in the dolomite region is the most fragmented and has a high heterogeneity; the distribution of erosion patches in the limestone region is more concentrated; the basalt region has the highest diversity, and the exchange of information between the patches is most frequent.