|Table of Contents|

Research on the Temporal and Spatial Evolution of Habitat Quality and Terrain Gradient Effect in Mountainous City: Taking the Urban Area of Sanming as an Example(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2023年01期
Page:
100-109
Research Field:
生态学
Publishing date:

Info

Title:
Research on the Temporal and Spatial Evolution of Habitat Quality and Terrain Gradient Effect in Mountainous City: Taking the Urban Area of Sanming as an Example
Author(s):
Zeng Zhen; Ai Jingwen; Cheng Lingyan; He Tianyou; Zheng Yushan
(College of Landscape Architecture and Art, Fujian Agriculture and Forest University, Fuzhou 350002, China)
Keywords:
mountainous city;  habitat quality;  terratin gradient effect;  Urban area of Sanming
PACS:
X321
DOI:
10.3969/j.issn.1001-4616.2023.01.014
Abstract:
The expansion of urban construction land had always been the main factor affecting the urban ecosystem. Due to its complex and sensitive natural environment,mountain cities were more vulnerable to the impact of biodiversity. Therefore,in-depth analysis of the habitat quality of mountain cities were a necessary measure to improve local habitat quality and protect biodiversity. In this study,the InVEST model was used to simulate and calculate the habitat quality of the urban area of Sanming in 2011 and 2021,to evaluate the habitat level of the urban area of Sanming,and to analyze the gradient effect of the habitat quality in combination with the terrain level index. The driving force analysis of the habitat quality in the study area was carried out by using geodetector,and the main factors affecting the habitat quality were explored. The results showed that,(1)The average habitat quality index in Sanming urban area in 2011 and 2021 was 0.539 9 and 0.595 3,respectively. The habitat quality level was generally at the upper-middle level,showing a phenomenon of high outside and low inside.(2)The habitat quality in the urban area of Sanming showed obvious spatial agglomeration characteristics,with regional agglomeration of high-quality habitats and regional agglomeration of low-quality habitats as the main agglomeration characteristics.(3)The habitat quality distribution index in the urban area of Sanming has a significant terrain gradient effect. High habitat quality had an absolute advantage in high terrain gradient,and low habitat quality had an absolute advantage in low terrain gradient.(4)In the driving force analysis of habitat quality in the study area,the influence of natural environment was higher than that of social factors. The research results strengthen the cognition of the temporal and spatial changes of the habitat quality of mountain cities,and had certain theoretical and practical value for the improvement and protection of the habitat quality in Sanming urban area.

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Last Update: 2023-03-15