基于MCR模型的宁波市生态安全网络构建

于梦林; 刘平辉; 朱传民

doi:10.13961/j.cnki.stbctb.20211126.003

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基于MCR模型的宁波市生态安全网络构建

试验研究

- 基于MCR模型的宁波市生态安全网络构建
- Construction of Ecological Security Network Based on Minimum Cumulative Resistance Model at Ningbo City
- 水土保持通报 2022年42卷第1期页码：217-224
- 作者机构：
  
  1. 东华理工大学地球科学学院,江西,南昌,330013
  2. 东华理工大学江西省数字国土重点实验室,江西,南昌,330013
- 作者简介：
- 基金信息：
  
  江西省高校人文社会科学研究项目(JC19101);江西省文化艺术科学规划项目(YG2017354);抚州市社会科学规划项目(19SK18)
- DOI：10.13961/j.cnki.stbctb.20211126.003
  中图分类号： X321
- 纸质出版：2022
- 稿件说明：
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于梦林, 刘平辉, 朱传民. 基于MCR模型的宁波市生态安全网络构建[J]. 水土保持通报, 2022,42(1):217-224.

Yu Menglin, Liu Pinghui, Zhu Chuanmin. Construction of Ecological Security Network Based on Minimum Cumulative Resistance Model at Ningbo City[J]. Bulletin of Soiland Water Conservation, 2022, 42(1): 217-224.
于梦林, 刘平辉, 朱传民. 基于MCR模型的宁波市生态安全网络构建[J]. 水土保持通报, 2022,42(1):217-224. DOI： 10.13961/j.cnki.stbctb.20211126.003.

Yu Menglin, Liu Pinghui, Zhu Chuanmin. Construction of Ecological Security Network Based on Minimum Cumulative Resistance Model at Ningbo City[J]. Bulletin of Soiland Water Conservation, 2022, 42(1): 217-224. DOI： 10.13961/j.cnki.stbctb.20211126.003.

摘要

[目的

]

通过识别浙江省宁波市重要生态源地及潜在生态廊道，构建生态安全网络，为合理引导城市发展及建立生态保护重点区提供参考。[方法

]

以生态系统服务价值聚类和异常值分析法提取宁波市生态源斑块，以最小累积阻力模型(MCR)计算多源生态阻力面，结合重力模型识别潜在生态廊道重要性，建立宁波市生态片区，形成生态安全网络。[结果

]

①2020年宁波市生态系统服务价值为0～14 929.95元/m

，高值聚类区占宁波市总面积的23.28%。②宁波市生态阻力值为1～3.775，阻力值较高地区分布于宁波市中心城区及慈溪市，较低值分布于奉化区、宁海县与象山县。③通过重力模型共识别36条普通廊道、5条一般重要廊道和4条重要廊道，产生40个潜在生态节点，构建宁波市7大生态片区，形成“L”型生态安全网络格局。[结论

]

生态安全是引导城市合理发展的重要保障，应通过保护地区生态用地完整性，开发和维护潜在生态廊道来促进人与自然和谐共生。

Abstract

[Objective] An ecological safety network at Ningbo City

Zhejiang Province was constructed by identifying important ecological sources and potential ecological corridors in order to provide a reference for rationally guiding urban development and establishing key ecological protection areas. [Methods] The ecological source patches at Ningbo City were extracted by ecosystem service value clustering and the outlier analysis method. The multi-source ecological resistance surface was calculated by the minimum cumulative resistance (MCR). The gravity model was used to identify the importance of potential ecological corridors to establish ecological areas at Ningbo City

which formed an ecological safety network. [Results] ① In 2020

the ecosystem service value for Ningbo City was between 0 and 14 929.95 yuan/m2

and the high-value clustering area accounted for 23.28% of the total area of Ningbo City. ② The ecological resistance values were between 1 and 3.775. The areas with higher resistance values were located in downtown Ningbo and Cixi City

and the lower values were located at Fenghua District

Ninghai County

and Xiangshan County. ③ Thirty-six common corridors

five generally important corridors

and four important corridors were identified through the gravity model

and 40 potential ecological nodes were generated. Seven ecological areas at Ningbo City were constructed to form an L-shaped ecological safety network pattern. [Conclusion] Ecological security is an important guarantee for guiding the rational development of cities. It promotes the harmonious coexistence of human and nature by protecting the integrity of regional ecological land

and by developing and maintaining potential ecological corridors.

关键词

Keywords

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