城市化对生态系统服务的影响:在确定驱动力时,时间和空间都很重要
Junhan Li1, Binggeng Xie1, Huimin Dong2
1School of Geographic Sciences, Hunan Normal University, Changsha, 410081, PR China.
Journal of environmental management
|October 5, 2023
概括
城市化对生态系统服务 (ESs) 产生重大影响,降低息地质量,改变水产,土壤保护和出口. 了解这些复杂的非线性关系对于生态治理和城市规划至关重要.
科学领域:
- 环境科学 环境科学
- 生态生态学 生态生态学
- 城市研究 城市研究
背景情况:
- 快速的城市化对区域生态安全和人类福祉构成重大威胁.
- 了解城市化对生态系统服务 (ESs) 的影响对于有效的生态治理和政策制定至关重要.
- 江河流域 (XJRB) 正在经历快速发展,需要对其生态后果进行评估.
研究的目的:
- 从1990年到2020年,分析 XJRB 中关键生态系统服务 (水产,土壤保护,出口,息地质量) 的空间和时间分布.
- 调查城市化因素 (建设用地,经济密度,人口密度,夜间照明) 对分流区和县级的ES的影响.
- 探索城市化与社会经济之间的非线性关系和时间动态.
主要方法:
- 在XJRB (1990-2020) 中分析了四个ES和四个城市化因素的空间和时间分布.
- 应用空间对时间和变化对时间的方法来评估城市化对不同空间尺度上的ES的影响.
- 量化城市化因素对ESs的影响和相互作用,考虑到空间异质性.
主要成果:
- 息地质量 (HQ) 显著下降,而城市化因素增加;水产 (WY),土壤保护 (SC) 和出口 (NE) 波动.
- 城市化因素显著影响了ES的空间异质性,县级的影响更大,而不是分流区级.
- 在城市化和ES之间发现了显著的非线性关系,确定了门,并且在驱动效应和强度方面明显的空间异质性.
结论:
- 城市化对生态系统服务产生复杂,空间异质的影响,需要规模特定的管理策略.
- 换代方法有效地揭示了转型的关键时期 (1992-1995,2008-2013) 和驱动因素的空间异质性.
- 调查结果为像XJRB这样快速发展的地区的知情城市规划和生态治理提供了关键的见解.
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