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Arid Land Geography ›› 2023, Vol. 46 ›› Issue (6): 934-948.doi: 10.12118/j.issn.1000-6060.2022.282

• Ecology and Environment • Previous Articles     Next Articles

Temporal and spatial changes of human activities and habitat quality in national key ecological function areas and their spatial effects

YUAN Hongwei(),CAI Jun(),ZHANG Lei   

  1. College of Economics & Management, Anhui Agricultural University, Hefei 230000, Anhui, China
  • Received:2022-05-20 Revised:2022-08-04 Online:2023-06-25 Published:2023-07-24

Abstract:

Ecological civilization is a new concept of human civilization development. Scientific measurements of the correlation between human activities and habitat quality can provide theoretical support for the development of an ecological civilization. As a demonstration area for exploring the harmonious coexistence between humans and nature, national key ecological function zones play an important role in safeguarding the national ecological security pattern and coordinating the relationship between humans and the environment. Based on land use data and population, GDP, and traffic distribution data from 1995 to 2020, we used the InVEST model and the human footprint index method to explore the spatial and temporal distribution characteristics of habitat quality and human activities in national key ecological function zones. We used bivariate local autocorrelation and spatial Durbin model to measure their spatial dependence and effects. The results were as follows: (1) The habitat quality in the study area decreased yearly during the past 25 years, and generally showed a pattern of “decreasing from south to north in the west and staggered distribution in the east”. (2) The intensity and breadth of human activities increased during the past 25 years, and the distribution of high and low values was bound by the “Hu Line”. (3) There was a significant spatial dependence between human activities and habitat quality. The LISA cluster diagram showed that the number of ecological zones in high-high, high-low, and low-high cluster types was 15, 5, and 5, respectively, and there was no low-low cluster. (4) The spatial effects of typical human activities on habitat quality were different under different nature-social backgrounds, but they all had significant spatial spillover effects. Specifically, the total effect of population and GDP distribution in high-high agglomeration areas is positive, and population distribution is the main contributing factor. The spatial spillover effect of population and GDP in the high-low agglomeration area is still positive, but GDP has the highest contribution. The effect of population distribution in low-high agglomeration areas is negative, and GDP is still dominated by the positive spatial spillover effect of high contribution. No matter what kind of agglomeration area, traffic roads are dominated by a negative spatial spillover effect. The development status of the ecological environment and human activities in the national key ecological function areas is evaluated scientifically, the research methods and ideas are enriched, and the correlation discussion on the basis of mathematical analysis provides a policy basis for the construction of ecological civilizations in the study area.

Key words: national key ecological function zones, human activities, habitat quality, spatial autocorrelation, spatial Dubin model