自然资源学报 ›› 2020, Vol. 35 ›› Issue (3): 546-562.doi: 10.31497/zrzyxb.20200304

• “国土空间生态修复”专栏 • 上一篇    下一篇

基于生态系统服务多情景权衡的生态安全格局构建——以大连市瓦房店为例

赵文祯1, 韩增林1,2, 闫晓露2,3, 钟敬秋2   

  1. 1. 辽宁师范大学地理科学学院,大连 116029;
    2. 辽宁师范大学海洋经济与可持续发展研究中心,大连 116029;
    3. 中国科学院沈阳应用生态研究所,沈阳 110016
  • 收稿日期:2019-06-12 修回日期:2019-09-27 出版日期:2020-03-28 发布日期:2020-03-28
  • 通讯作者: 闫晓露(1987- ),女,黑龙江齐齐哈尔人,博士,讲师,硕士生导师,主要从事滨海湿地生态服务、滨海湿地综合环境效益等研究。E-mail: xlyan@lnnu.edu.cn
  • 作者简介:赵文祯(1993- ),男,山西汾阳人,硕士,主要从事生态系统服务及空间格局优化研究。E-mail: wzzhao_lnnu@163.com
  • 基金资助:
    国家自然科学基金项目(41976206); 辽宁省教育厅海洋专项(H201783631); 辽宁省自然科学基金指导计划项目(20180551194); 辽宁省教育厅人文社科研究项目(WQ2019020)

Ecological security pattern construction based on multi-scenario trade-off of ecosystem services: A case study of Wafangdian, Dalian

ZHAO Wen-zhen1, HAN Zeng-lin1,2, YAN Xiao-lu2,3, ZHONG Jing-qiu2   

  1. 1. School of Geography, Liaoning Normal University, Dalian 116029, Liaoning, China;
    2. Center for Studies of Marine Economy and Sustainable Development, Liaoning Normal University, Dalian 116029, Liaoning, China;
    3. Institute of Applied Ecology, CAS, Shenyang 110016, China
  • Received:2019-06-12 Revised:2019-09-27 Online:2020-03-28 Published:2020-03-28

摘要: 以辽宁省瓦房店市为研究单元,在评估2000年与2014年的食物供给、NPP、产水量及土壤保持四种典型生态系统服务基础上,引入OWA模型,模拟出研究区2014年生态系统服务优先保护区作为生态源地;利用最小累积阻力模型识别生态廊道与缓冲区,构建研究区生态安全格局。研究表明:(1)2000-2014年,瓦房店市生态系统服务时空变化显著,除产水量外,其他生态系统服务均有所增强。(2)综合考虑生态系统服务保护效率(Ei>1)与权衡度(0.68),选取情景5下的优先保护区作为瓦房店的生态源地。(3)瓦房店生态源地面积为564.92 km2;生态廊道总长度为642.62 km,一级廊道(220.76 km)纵贯南北,次级廊道(421.86 km)呈网状连通分布离散的生态源地。研究结果可为瓦房店市生态系统可持续管理和土地利用优化提供决策支持。

关键词: OWA, 生态系统服务, 保护区, 瓦房店市, 生态安全格局

Abstract: Taking Wafangdian county in Liaoning province as the research unit, on the basis of the evaluation of the four typical ecosystem services, including food supply, NPP, water yield and soil conservation in 2000 and 2014, OWA model was introduced to simulate the priority conversation areas of ecosystem services in the study area in 2014 as the ecological source. The MCR model was used to identify the ecological corridor and buffer zone, and the ecological security pattern of the study area was constructed. The results show that: (1) From 2000 to 2014, the spatial and temporal changes of ecosystem services in Wafangdian were significant. Except for water yield, other ecosystem services had been enhanced. (2) Considering the efficiency of ecosystem services protection (Ei>1) and trade-off degree (0.68), the priority conservation areas under scenario 5 were selected as the ecological source of Wafangdian. (3) The ecological source area of Wafangdian was 564.92 km2, which is distributed throughout the region; the total length of ecological corridors was 642.62 km, the first level corridors (220.76 km) ran through the north and south of the study area, and the secondary corridors (421.86 km) connected the dispersed ecological sources with net-like distribution. The results can provide decisive supports for sustainable ecosystem management and land use optimization in Wafangdian.

Key words: ecological security pattern, Wafangdian, ecosystem services, OWA, conservation area