Terrain Gradient Effect and Spatial Structure Characteristics of Land Use in Dashanbao Area

Zhang Li; Wang Ping; Duan Xiao; Zhao Zijiao

doi:10.13961/j.cnki.stbctb.2022.02.042

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Terrain Gradient Effect and Spatial Structure Characteristics of Land Use in Dashanbao Area

- Terrain Gradient Effect and Spatial Structure Characteristics of Land Use in Dashanbao Area
- Bulletin of Soiland Water Conservation Vol. 42, Issue 2, Pages: 315-321(2022)
- 作者机构：
  
  1. 云南师范大学地理学部,云南,昆明,650500
  2. 云南大山包黑颈鹤国家级自然保护区管护局,云南,昭通,657000
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2022.02.042
  CLC： F301.2
- Published：2022
- 稿件说明：
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Zhang Li, Wang Ping, Duan Xiao, et al. Terrain Gradient Effect and Spatial Structure Characteristics of Land Use in Dashanbao Area[J]. Bulletin of Soiland Water Conservation, 2022, 42(2): 315-321.
DOI：

Zhang Li, Wang Ping, Duan Xiao, et al. Terrain Gradient Effect and Spatial Structure Characteristics of Land Use in Dashanbao Area[J]. Bulletin of Soiland Water Conservation, 2022, 42(2): 315-321. DOI： 10.13961/j.cnki.stbctb.2022.02.042.

摘要

[目的] 探究地形因素对土地利用格局与空间结构特征的影响，为大山包地区土地开发利用的规划和决策提供科学参考。[方法] 运用地形梯度分析法和分形理论来探讨其土地利用的地形梯度效应与空间结构特征。[结果] ①大山包地区各土地利用类型在不同海拔、坡度和地形位指数的空间分布格局存在显著差异。②耕地、建设用地、水域优势分布的地形位指数区间均为0.26～0.53，林地为0.53～1.21，草地为0.44～0.60，未利用地为0.26～0.53，0.71～1.21。③土地利用综合强度指数和土地利用多样性指数随着海拔和坡度增加分别由234.75，0.82逐渐降低至218.49，0.63再分别升高至221.02，0.67，且二者随着海拔和坡度的增加呈现出先降低后升高的趋势。④各地类分布的分形特征明显，分维数介于1.191 1～1.668 8，各地类的稳定性大小依次为林地(0.308 9)＞建设用地(0.282 8)＞耕地(0.264 1)＞未利用地(0.199 7)＞水域(0.168 8)＞草地(0.135 1)。[结论] 大山包地区土地利用格局与空间结构特征受地形因素影响显著，地形梯度特征明显。

Abstract

[Objective] The influence of topographical factors on land use pattern and spatial structure characteristics was explored in order to provide a scientific reference basis for the planning and decision-making of land development and utilization in Dashanbao area. [Methods] Terrain gradient analysis method and fractal theory were used to explore the terrain gradient effect and spatial structure characteristics of land use. [Results] ① There were significant differences in the spatial distribution patterns of various land use types in Dashanbao area at different altitudes

slopes and topographic index. ② The topographic index range of the dominant distribution of cultivated land

construction land and water area were all 0.26～0.53

forest land was 0.53～1.21

grassland was 0.44～0.60

unused land was 0.26～0.53 and 0.71～1.21. ③ The comprehensive land use intensity index and the land use diversity index gradually decreased from 234.75 and 0.82 to 218.49 and 0.63 respectively with the increase of altitude and slope

and then increased to 221.02 and 0.67 respectively

and the both decreased first and then increased with the increase of altitude and slope. ④ The fractal characteristics of the distribution of each category were obvious

and the fractal dimension was between 1.191 1～1.6 688. The stability of each category was in the order of forest land (0.308 9)＞ construction land (0.282 8)＞ cultivated land (0.264 1)＞ unused land (0.199 7) ＞ water (0.168 8)＞ grass (0.135 1). [Conclusion] The land use pattern and spatial structure characteristics of Dashanbao area are significantly affected by topographic factors

and the characteristics of topographic gradient are obvious.

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