基于红绿蓝空间的生态网络构建:中国大理市案例研究

IF 2.8 3区 地球科学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS
Rong Chen, Shunmin Zhang, Xiaoyuan Huang, Xiang Li, Jiansong Peng
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引用次数: 0

摘要

快速城市化导致城市景观破碎化和连通性降低,危及区域生物多样性保护和可持续发展。构建红、绿、蓝空间生态网络是缓解生态压力、促进经济发展的有效途径。本研究运用回路理论、水文分析和适宜性分析,构建了城乡一体化下的复合生态网络。研究结果表明(1)市域内共识别出生态廊道 22 条,长度 349.20 千米,生态夹点 22 个,生态屏障点 22 个,主要分布在海东镇。其中雨水廊道 504 条,分布较为均匀,滨河景观廊道 502 条,慢行景观廊道 130 条。(2)主城区共确定生态廊道 20 条,长度 99.23 公里,生态夹点 19 个,屏障点 25 个,大部分位于生态廊道内。雨水廊道 71 条,主要位于西北林区,滨河休闲廊道 71 条,慢行休闲廊道 50 条。(3) 两级叠加生态源面积 3.65 平方公里,生态廊道 11 条,主要分布在洱海与下关镇之间。叠加雨水廊道 2 条,休闲廊道 14 条。生态节点主要分布在大理市东部和南部;湿地节点主要分布在苍山十八涧;景观节点空间分布较为均衡。研究结果可为复合生态网络建设提供参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ecological Network Construction Based on Red, Green and Blue Space: A Case Study of Dali City, China
Rapid urbanization leads to fragmentation and reduced connectivity of urban landscapes, endangering regional biodiversity conservation and sustainable development. Constructing a red, green, and blue spatial ecological network is an effective way to alleviate ecological pressure and promote economic development. Using circuit theory, hydrological analysis, and suitability analysis, this study constructs a composite ecological network under urban–rural integration. The results show the following: (1) A total of 22 ecological corridors with a length of 349.20 km, 22 ecological pinch points, and 22 ecological barrier points are identified in the municipal area, mainly distributed in Haidong Town. There are 504 stormwater corridors, which are more evenly distributed, 502 riverfront landscape corridors, and 130 slow-moving landscape corridors. (2) A total of 20 ecological corridors, with a length of 99.23 km, 19 ecological pinch points, and 25 barrier points were identified in the main urban area, and most of them are located in the ecological corridors. There are 71 stormwater corridors, mainly located in the northwestern forest area, 71 riverfront recreation corridors, and 50 slow-moving recreation corridors. (3) Two scales of superimposed ecological source area of 3.65 km2, and eleven ecological corridors, are primarily distributed between Erhai Lake and Xiaguan Town. There are two superimposed stormwater corridors and fourteen recreational corridors. The eco-nodes are mostly distributed in the east and south of Dali City; wetland nodes are mainly situated in the eighteen streams of Cangshan Mountain; and landscape nodes are more balanced in spatial distribution. The study results can provide a reference for composite ecological network construction.
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来源期刊
ISPRS International Journal of Geo-Information
ISPRS International Journal of Geo-Information GEOGRAPHY, PHYSICALREMOTE SENSING&nb-REMOTE SENSING
CiteScore
6.90
自引率
11.80%
发文量
520
审稿时长
19.87 days
期刊介绍: ISPRS International Journal of Geo-Information (ISSN 2220-9964) provides an advanced forum for the science and technology of geographic information. ISPRS International Journal of Geo-Information publishes regular research papers, reviews and communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. The 2018 IJGI Outstanding Reviewer Award has been launched! This award acknowledge those who have generously dedicated their time to review manuscripts submitted to IJGI. See full details at http://www.mdpi.com/journal/ijgi/awards.
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