Characteristics and drivers of spatial and temporal evolution of ecosystem carbon stocks and habitat quality in Hebei Province
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Affiliation:

School of Economics,Hebei University of Geosciences

Clc Number:

X171.1

Fund Project:

Major Research Projects of Humanities and Social Sciences Research of Hebei Provincial Department of Education “Study on the Mechanism and Path of Realizing the Value of Forestry Carbon Sink Ecological Products in Hebei Province”(ZD202311);Research on “Evaluation of Carbon Reduction and Sink Increase Effect of Fine Management of Natural Resources in Hebei Province and Countermeasures for Improvement”, Natural Resources Capital Asset Research Center, Hebei University of Geosciences, Hebei, China (NRACRC2022A02)

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    Abstract:

    [Objective] Carbon stock and habitat quality are important indicators for evaluating the function of ecosystem services, and the study of their spatial and temporal distribution patterns is of great significance for the precise implementation of ecosystem protection and management. [Methods] Based on the land use transfer matrix, we analyzed the land use change status in Hebei Province from 2000 to 2020, and selected the PLUS-InVEST-Geodector model to estimate the ecosystem carbon stock and habitat quality in Hebei Province from 2000 to 2030. And we analyzed the change pattern of its spatial and temporal changes and driving factors. [Result] (1) The carbon stock in Hebei province decreased by 13.45 TgC from 2000 to 2020, and the areas with decreasing carbon stock were mostly concentrated in the Damshang Plateau area, the North China Plain and the southeastern hilly areas. (2) In 2030, the carbon stock under the natural development scenario decreases by 6.37 TgC compared with that in 2020. The carbon stock under the economic development scenario decreases by 21.73 TgC, and the carbon stock under the sustainable development scenario increases by 3.65 TgC. (3) The habitat quality index showed a gradual downward trend over time from 2000 to 2020. The main land categories of lowest and lower grade habitat quality are construction land and cropland, while the main land categories of higher and highest grade habitat quality are grassland and forest land. (4) The habitat quality index of Hebei Province in 2030 varies under different scenarios, with the sustainable development scenario (0.4639) > natural development scenario (0.4542) > economic development scenario (0.4500). (5) The strongest explanatory factors for the spatial variations in carbon stock and habitat quality were slope and elevation. Carbon stock and habitat quality were affected by both natural geographic factors and socioeconomic factors. [Conclusion] The land use pattern under the sustainable development scenario can help to improve the carbon stock and habitat quality of the ecosystem in Hebei Province, and can provide a reference for the relevant departments to formulate land policies and carbon emission reduction policies.

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History
  • Received:July 28,2024
  • Revised:September 08,2024
  • Adopted:September 09,2024
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