河北省生态系统碳储量和生境质量的时空演变特征及驱动因素
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作者单位:

1.河北地质大学;2.中国地质大学(北京)

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中图分类号:

X171.1

基金项目:

河北省教育厅人文社会科学研究重大课题攻关项目“河北省林业碳汇生态产品价值实现机制与路径研究”(ZD202311); 河北地质大学自然资源资本资产研究中心项目“河北省自然资源精细化管理的降碳增汇效应评价及提升对策研究”(NRACRC2022A02)


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

School of Economics,Hebei University of Geosciences

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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    摘要:

    [目的]碳储量和生境质量是评价生态系统服务功能的重要指标,研究其时空分布格局对生态系统保护和管理精准施策意义重大。[方法]基于土地利用转移矩阵分析河北省2000-2020年土地利用变化现状,选用PLUS-InVEST-Geodector模型估测2000-2030年河北省生态系统碳储量和生境质量并分析其时空变化规律及驱动因素。[结果](1)2000-2020年河北省碳储量共下降13.45TgC,碳储量变化减少的区域多集中于坝上高原地区及华北平原和东南部丘陵地区。(2)2030年自然发展情景下碳储量较2020年减少6.37TgC,经济发展情景下碳储量减少21.73TgC,可持续发展情景下碳储量增加3.65TgC。(3)2000-2020年河北省生境质量指数随着时间变化呈逐渐下降趋势。低及较低等级生境质量主要地类为建设用地、耕地,较高及高等级生境质量主要地类为草地、林地。(4)2030年河北省生境质量指数在不同情景下有所差异,可持续发展情景(0.4639)>自然发展情景(0.4542)>经济发展情景(0.4500)。(5)碳储量和生境质量空间分异解释力最强的因子分别是坡度和高程,碳储量和生境质量同时受到自然地理因素以及社会经济因素的共同作用。[结论]可持续发展情景下的土地利用格局有助于提升河北省生态系统的碳储量和生境质量,能够为相关部门制定土地政策和碳减排政策提供参考。

    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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  • 收稿日期:2024-07-28
  • 最后修改日期:2024-09-08
  • 录用日期:2024-09-09
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