| 刘禹歆,曹 攀,钱程阳,李 悦,钱 阳.基于MSPA 与MCR模型的洛阳市生态网络构建研究[J].林业调查规划,2025,50(1):72-79 |
| 基于MSPA 与MCR模型的洛阳市生态网络构建研究 |
| Construction of Ecological Network in Luoyang CityBased on MSPA and MCR Model |
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| DOI： |
| 中文关键词: 生态网络 MSPA MCR 生态廊道 洛阳市 |
| 英文关键词: ecological network morphological spatial pattern analysis minimum cumulative resistance
model ecological corridor Luoyang City |
| 基金项目:国家自然科学基金(52278127). |
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| 中文摘要: |
| 以洛阳市为例,通过形态学空间格局分析(MSPA) 法、最小累积阻力模型(MCR) 和重力模型
构建洛阳市中心城区生态网络。研究结果表明,2020年洛阳市中心城区生态源地总面积为50.768 hm2,通过景观指数分析得到洛阳市主城区内生境斑块的最小面积阈值为0.03 km2,共识别出重要生态源地10 个;根据MCR 模型得到的重力模型矩阵,识别出生态廊道共44 条,重要廊道13 条,一般廊道31 条;生态源地空间分布不均匀,主要分布在研究区范围内的东部、南部以及边缘地带。综
合阻力呈中、西、北部高,东部偏低,交通路网多,生态环境有待加强。对洛阳市中心城区生态环境进行优化后,增加生态源地3 个,添加10 个绿地斑块作为踏脚石,得到新增潜在生态廊道22 条,利用生态网络结构评价体系,计算出α、β、γ指数分别为2.48、5.07、2,均有所提升,优化后的生态网络提升了区域生态斑块间的连通度,增强了洛阳市生态系统的稳定性。 |
| 英文摘要: |
| Taking Luoyang City as an example, the ecological network of the central urban area of Luoyang
was constructed by using morphological spatial pattern analysis (MSPA) method, minimum cumulative
resistance model (MCR), and gravity model. The results showed that in 2020, the total area of ecological
sources in the central urban area of Luoyang was 50.768 hm2, and the minimum area threshold of
habitat patches in the main urban area was 0.03 km2 and a total of 10 important ecological sources were identified. According to the gravity model matrix obtained by the MCR model, a total of 44 ecological corridors,
13 important corridors and 31 general corridors were identified. The spatial distribution of ecological
source areas was uneven, mainly distributed in the eastern, southern, and marginal areas of the study
area. The comprehensive resistance was high in the middle, west and north, low in the east, and there
were many traffic networks, and the ecological environment should be strengthened. After the optimization
of the ecological environment in the central urban area of Luoyang, 3 ecological sources were added,
10 green patches were added as stepping stones, and 22 new potential ecological corridors were obtained,
and the α, β and γ indices were calculated to be 2.48, 5.07 and 2 respectively, all of which were improved,
and the optimized ecological network improved the connectivity between regional ecological patches
and enhanced the stability of the ecosystem in Luoyang City. |
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