广西师范大学学报（自然科学版） ›› 2026, Vol. 44 ›› Issue (1): 215-226.doi: 10.16088/j.issn.1001-6600.2025021302

• 生态环境科学研究 • 上一篇    下一篇

基于断裂点-场强模型的生态系统服务流研究——以平陆运河经济带为例

谢玲1,2,3*, 黄玉航2, 谭敏慧2, 陈展图1,2*   

  1. 1.广西生态脆弱环区环境过程与修复重点实验室(广西师范大学),广西 桂林 541006;
    2.广西师范大学 环境与资源学院, 广西 桂林 541006;
    3.广西运河研究院(广西师范大学), 广西 桂林 541004
  • 收稿日期:2025-02-13 修回日期:2025-04-10 出版日期:2026-01-05 发布日期:2026-01-26
  • 通讯作者: 谢玲(1990—),女,新疆库尔勒人,广西师范大学讲师,博士。E-mail:1428375964@qq.com；陈展图(1985—),男,广西梧州人,广西师范大学副教授,博士。E-mail: chenzhantu@sina.com
  • 基金资助:
    国家自然科学基金(42061045);广西自然科学基金面上项目(2021JJA150154);广西哲学社会科学基金(24SHB002);广西应急管理科技攻关项目(2024GXYJ043)

Ecosystem Service Flow Based on Breakpoint-Field Strength Model ——Take the Pinglu Canal Economic Belt as an Example

XIE Ling1,2,3*, HUANG Yuhang1, TAN Minhui2, CHEN Zhantu1,2*   

  1. 1. Guangxi Key Laboratory of Environmental Processes and Remediation in Ecologically Fragile Regions (Guangxi Normal University), Guilin Guangxi 541006, China;
    2. College of Environment and Resources, Guangxi Normal University, Guilin Guangxi 541006, China;
    3. Guangxi Canal Research Institute (Guangxi Normal University), Guilin Guangxi 541004, China
  • Received:2025-02-13 Revised:2025-04-10 Online:2026-01-05 Published:2026-01-26

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摘要： 生态系统服务流关系区域自然生态系统健康发展和人类福祉。生态系统服务供需视角下,平陆运河经济带生态系统服务流研究是摸清生态运河建设及经济带高质量发展的基底。本文利用当量因子估算生态系统服务潜在供给,基于人口密度、地均GDP,构建生态系统服务需求指数,计算生态系统服务需求,以此确定平陆运河经济带2000、2010和2020年生态系统服务供需比,采用断裂点-场强模型量化生态系统服务流流量及生态系统服务流强度。研究结果表明:1)20年间,研究区生态系统服务供给价值变化不大(由2000年的2 676亿元增长至2020年的2 753亿元),处于空间稳定状态,价值量最低为2000年北海市海城区的2亿元,最高为2020年桂平市的225亿元。南宁市辖各区是生态系统服务需求较强的集聚区。2)研究期间生态系统服务需求持续增长,由2000年40 665人·元/km2提升至2020年的57 682人·元/km2,生态系统服务需求在南宁、贵港和北海市辖各区形成3个高值集聚区,供需比大部分在-1以上。3)研究时段内平陆运河经济带的生态系统流动强度总体呈上升至稳定态势,生态系统服务流从2000年198.13亿元增加到2010年214亿元,2020年为211.6亿元,略有减少。贵港市的桂平市是重要的生态系统服务供给区,2000、2010和2020年桂平市输出的生态系统服务价值分别为205、216和225亿元,各地区的生态系统服务价值盈余/赤字的情况日益加剧。

关键词: 生态系统服务流, 断裂点模型, 场强模型, 平陆运河经济带

Abstract: Ecosystem service flow is related to the healthy development of regional natural ecosystems and human well-being. From the perspective of ecosystem service supply and demand, studying ecosystem service flow in the Pinglu Canal Economic Belt is the basis for finding the construction of the ecological canal and the high-quality development of the economic belt. In this paper, the potential supply of ecosystem services is estimated by an equivalent factor, and the demand index of ecosystem services is constructed to calculate the demand for ecosystem services based on population density and average land GDP, so as to determine the supply and demand ratio of ecosystem services in Pinglu Canal Economic Belt in 2000, 2010 and 2020. The breakpoint-field strength model was used to quantify the flow and intensity of ecosystem service flows. The results show that: 1) During the past 20 years, the supply value of ecosystem services in the study area had little change (increasing from 267.6 billion yuan in 2000 to 275.3 billion yuan in 2020) and is in a spatial stable state, with the lowest value being 200 million yuan in Haicheng District in 2000 and the highest value being 22.5 billion yuan in Guiping in 2020. The districts under the jurisdiction of Nanning are the agglomeration areas with a strong demand for ecosystem services. 2) During the study period, the demand for ecosystem services increased continuously, from 40 665 people · yuan /km2 in 2000 to 57 682 people · yuan /km2 in 2020. The demand for ecosystem services formed three high-value clusters in the districts under the jurisdiction of Nanning, Guigang and Beihai, with the supply-demand ratio above -1 for most of them. 3) During the study period, the ecosystem flow intensity of the Pinglu Canal Economic Belt generally increased to a stable trend, and the ecosystem service flow increased from 19.813 billion yuan in 2000 to 21.4 billion yuan in 2010, and slightly decreased to 21.16 billion yuan in 2020. Guiping of Guigang is an important ecosystem service supply area. In 2000,2010 and 2020, the ecosystem service flows exported by Guiping are respectively, and the situation of ecosystem supply/deficit in each region is becoming increasingly significant.

Key words: ecosystem service flow, breaking point model, field strength model, Pinglu Canal Economic Belt

中图分类号:  X87;X82

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