Bulletin of Surveying and Mapping ›› 2021, Vol. 0 ›› Issue (11): 106-109,114.doi: 10.13474/j.cnki.11-2246.2021.348

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Habitat quality assessment of road area of Huma-Shiba station highway in Heilongjiang province

SHI Zhenwu, LI Chi   

  1. School of Civil Engineering, Northeast Forestry University, Harbin 150006, China
  • Received:2020-11-17 Revised:2021-09-15 Online:2021-11-25 Published:2021-12-02

Abstract: The construction of green highway also inevitably affects the habitat quality of road area, therefore, 30 m global land cover data of 2020 edition, Landsat 8 satellite image, ASTER GDEM with 30 m resolution is selected and operated in collaboration with ENVI 5.3 and ArcGIS 10.2 platforms, the influence on the habitat quality is analyzed from the three perspectives of the habitat suitability of soil erosion degree and the change of vegetation coverage before and after highway construction. The results prove that The vegetation coverage over 75% of the road area decreases from 2 673.8 km2 to 2 389.82 km2 before and after highway construction, areas with vegetation coverage of 45%~75% decreases from 997.31 km2 to 767.19 km2; The erosion degree of soil is mainly moderate erosion and high erosion, moderate erosion and high erosion cover a total area of 3 927.99 km2, accounting for 79.04% in total; Habitat suitability is highest in and around Huma River basin on the left side of the highway, and the forest area on the right side of the highway is followed by patches.

Key words: GIS, green highway, fractional vegetation coverage, habitat quality, road area ecology

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