地学前缘 ›› 2023, Vol. 30 ›› Issue (4): 504-513.DOI: 10.13745/j.esf.sf.2023.2.48

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生态系统恢复力理论在甘肃省国土空间生态修复规划编制中的应用

毛龙1(), 汪胜兰2,3, 邱晓峄1, 陶卓琳1, 冯永忠1,2,*(), 黄银洲2   

  1. 1.甘肃省自然资源厅, 甘肃 兰州 730000
    2.兰州大学 资源环境学院, 甘肃 兰州 730000
    3.湖北文理学院 资源环境与旅游学院, 湖北 襄阳 441053
  • 收稿日期:2022-08-07 修回日期:2022-09-16 出版日期:2023-07-25 发布日期:2023-07-07
  • 通讯作者: *冯永忠(1963—),男,教授级高级工程师,博士生导师,主要从事自然资源政策、生态修复、规划评估研究工作。E⁃mail: fengyongzhong63@163.com
  • 作者简介:毛 龙(1986-),男,硕士研究生,工程师,交通运输与规划专业。E-mail: maolong2004@126.com
  • 基金资助:
    国家自然科学基金项目(41971195);甘肃省科技计划软科学专项(21CX6ZA035)

Evaluation of ecological resilience in terrestrial ecosystems in Gansu, China-an empirical study

MAO Long1(), WANG Shenglan2,3, QIU Xiaoyi1, TAO Zhuolin1, FENG Yongzhong1,2,*(), HUANG Yinzhou2   

  1. 1. Department of Natural Resources of Gansu Province, Lanzhou 730000, China
    2. College of Earth & Environmental Sciences, Lanzhou University, Lanzhou 730000, China
    3. College of Resource and Tourism, Hubei University of Arts and Science, Xiangyang 441053, China
  • Received:2022-08-07 Revised:2022-09-16 Online:2023-07-25 Published:2023-07-07

摘要:

随着国土空间生态修复在我国全面展开,生态恢复力的评价成为指导地方生态修复措施的重要前提和支撑。省域层面上,由于各省包含的地域类型多样,准确构建评价模型、合理选择评价方法极其重要。以地域类型最丰富的甘肃省为例,基于甘肃省87个县域生态系统指标数据,综合运用Fragstats、ArcGIS及Geoda软件,对甘肃省全域及不同区域单元生态系统恢复力水平进行评价与分析,并对其空间分异特征及影响因素进行了深入探讨。结果表明:甘肃省生态恢复力指数均值为0.45,生态恢复力水平总体处于“一般”等级,地理分布上呈现出自东南向西北逐步降低的空间特征;甘肃省生态恢复力莫兰指数(Moran’s I)为0.95,反映甘肃省生态恢复力有非常显著的空间正相关性,且呈现明显的高-高集聚与低-低集聚两极分化的空间集聚特征,高-高集聚主要出现在甘肃东南部,而低-低集聚主要出现在甘肃西北部区域。研究揭示了甘肃省当前生态系统恢复力水平及区域空间差异,并针对不同生态区域单位分别提出生态修复建议,以期为区域国土空间规划及生态修复相关工作开展提供决策参考。

关键词: 生态系统, 恢复力, 空间分异, 生态修复, 甘肃

Abstract:

With the full implementation of ecosystem restoration program in China, the evaluation of ecological resilience has become an integral part of the regional restoration efforts. Due to diverse terrain conditions at provincial level it is extremely important for each province to build regional resilience models and choose suitable evaluation methods to evaluate the resilience models. Taking the example of Gansu Province which has the highest terrain diversity in the country, based on climate, vegetation and land use data for 87 counties, using Fragstats, ArcGIS and Geoda softwares, this paper evaluates ecological resilience in Gansu terrestrial ecosystems as a whole and in ecosystems of five regions with different terrain types, and discusses the difference in regional ecological resilience and its influencing factors. Gansu Province has an average resilience index score of 0.45 and is rated “average” in overall ecological resilience, where resilience indicators (ecological resilience intensity/limit, ecological resilience index) show trends of decreasing ecological resilience from the southeast to northwest. The calculated value of Moran’s I is 0.95 and obvious spatial clustering of high-high and low-low resiliency areas is detected; high-high clusters are mainly in the southeast and low-low clusters mainly in the northwest of Gansu. These results, combined with the suggestions put forward in this paper on ecosystem restoration for different terrain types, provide a frame of reference for decision-making in the regional terrestrial spatial planning and ecological restoration in Gansu.

Key words: ecosystem, resilience, spatial differentiation, ecological restoration, Gansu

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