生态环境学报 ›› 2025, Vol. 34 ›› Issue (12): 1866-1878.DOI: 10.16258/j.cnki.1674-5906.2025.12.004

• 研究论文【生态学】 • 上一篇    下一篇

生态韧性视角下陕西省绿色空间的时空演变特征及其驱动机制

奥勇1,2,*(), 倪赟1, 赵永华1,2, 丁志豪1, 黄福星1, 李敏1   

  1. 1.长安大学土地工程学院陕西 西安 710054
    2.陕西省土地整治重点实验室陕西 西安 710054
  • 收稿日期:2025-04-16 出版日期:2025-12-18 发布日期:2025-12-10
  • 通讯作者: *
  • 作者简介:奥勇(1965年生),男,副教授,博士,研究方向为生态遥感。E-mail: aoyong@chd.edu.cn
  • 基金资助:
    国家自然科学基金-联合基金项目(U23A2061)

Characteristics of Spatial and Temporal Evolution of Green Space and Its Driving Mechanism in Shaanxi Province under the Perspective of Ecological Resilience

AO Yong1,2,*(), NI Yun1, ZHAO Yonghua1,2, DING Zhihao1, HUANG Fuxing1, LI Min1   

  1. 1. College of Land Engineering, Chang’an University, Xi’an 710054, P. R. China
    2. Shaanxi Provincial Key Laboratory of Land Remediation, Xi’an 710054, P. R. China
  • Received:2025-04-16 Online:2025-12-18 Published:2025-12-10

摘要: 在区域生态环境退化与快速城市化叠加压力下,生态韧性成为区域可持续发展的重要标尺,而绿色空间作为城市生态系统的核心载体,其韧性演变机制亟待系统性解析。从生态韧性视角,探讨了2000-2023年陕西省绿色空间生态韧性的时空演变特征及其驱动机制。基于多源遥感与统计数据,构建“抵抗力-适应力-恢复力”三维生态韧性评估框架,结合地理探测器与GWR方法,解析陕西省绿色空间生态韧性的时空演变特征及驱动机制。结果表明,1)2000-2023年陕西省绿色空间规模整体缩减1877 km2,但结构显著优化。其中耕地持续减少5096 km2(集中于关中平原),林地因退耕还林政策驱动稳步增加2206 km2,水域受气候与人为调控波动增长。2)生态韧性水平整体提升,但空间分异显著。高值区(0.46-0.86)集中于陕南秦巴山地(林地覆盖率高、景观连通性强)及延安南部退耕还林区,低值区(0-0.16)分布于关中平原(耕地主导型结构脆弱)和榆林北部(干旱与能源开发叠加压力)。3)驱动机制呈现显著空间分异。降水提升陕北生态韧性,陕南因水资源过剩存在风险;温度主要加剧汉中、安康、延安北部压力;坡度在榆林与延安交界处支撑韧性,而在延安中部削弱韧性。人口密度在榆林北部城区促进韧性,但在延安北部和关中(如西安、咸阳)加剧脆弱性;GDP与绿色空间生态韧性在榆林北部呈负相关,在延安以及部分陕南区域呈正向效应;土地利用强度在全省普遍削弱韧性,尤其在关中地区表现突出。

关键词: 绿色空间, 生态韧性, 动态演变特征, 驱动机制, 陕西省, GWR模型

Abstract:

Under the superimposed pressure of regional ecological degradation and rapid urbanization, ecological resilience has become an important yardstick for sustainable regional development. As the core carrier of urban ecosystems, green spaces must be systematically analyzed for their resilience evolution mechanisms. This study explored the spatial and temporal evolution characteristics of green space ecological resilience and its driving mechanism from the perspective of ecological resilience in Shaanxi Province from 2000 to 2023. Based on multi-source remote sensing and statistical data from 2000 to 2023, a three-dimensional ecological resilience assessment framework of 'resistance-adaptation-resilience’ was constructed for the study area, and the coupled GeoDetector and geographically weighted regression model (GWR) were used to analyze the ecological resilience of green space in Shaanxi Province. spatial and temporal evolution characteristics and driving mechanisms of green space ecological resilience in Shaanxi Province. The results showed that 1) from 2000 to 2023, the scale of green space in Shaanxi Province as a whole shrank, but the structure was significantly optimized. Among them, arable land continues to decrease (concentrated in the Guanzhong Plain), forest land increases steadily due to the policy of returning farmland to forests, and water area grows fluctuatingly due to climatic and anthropogenic regulation. 2) The level of ecological resilience improves as a whole, but the spatial differentiation is significant. High-value areas were concentrated in the Qinba Mountains in southern Shaanxi (high woodland coverage and strong landscape connectivity) and the fallow forest area in southern Yan’an, whereas low-value areas were distributed in the Guanzhong Plain (fragile structure of dominant cropland) and northern Yulin (superimposed pressure of drought and energy development). 3) The driving mechanism shows significant spatial differentiation. Natural factors: Precipitation enhances resilience in northern Shaanxi, whereas southern Shaanxi is at risk owing to excess water. Temperature exacerbated stress in Hanzhong, Ankang, and northern Yan’an. The slope supports resilience at the Yulin-Yan’an junction, whereas it weakens resilience in central Yan’an. Socio-economic factors: population density promotes resilience in the northern urban areas of Yulin but exacerbates vulnerability in northern Yan’an and Guanzhong (e.g., Xi’an, Xianyang); GDP is negatively correlated in the Yulin Resource Area, with a positive effect in the Yan’an Eco-region, Guanzhong, and part of southern Shaanxi; and land-use intensity weakens resilience in the province generally and is especially pronounced in the Guanzhong area.

Key words: greenspace, ecological resilience, dynamic evolutionary features, driving mechanism, Shaanxi Province, geographically weighted regression

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