Construction of Ecological Network Based on Multi-Scale Conversion and Nesting
文献类型：期刊论文
| 作者 | Yu, Haoran; Wang, Yongzheng; Eme, Chan; Fan, Xin; Rong, Yuejing; Zhang, Qiang; Liang, Zhe |
| 刊名 | WATER
 |
| 出版日期 | 2021-05 |
| 卷号 | 13期号:9页码:- |
| 关键词 | multi-scale ecological network the circuit theory the least-cost path method space overlay |
| 英文摘要 | Ecological protection and the restoration of full-array ecosystems is an important part of ecological civilization construction, which is a powerful measure to implement the concept of green development and help bridge the gap between the respective inevitable requirements of the current ecological environment and economic development. To solve this problem, a multi-scale index system was constructed to identify ecological sources comprehensively. The minimum-cost path method, the circuit theory, and the cyclic window search method were adopted to quantitatively identify the important ecological sources and corridors in scale nesting and pinch points and barrier points that affect multi-level connectivity. Furthermore, the specific optimization layout strategy of the ecological network structure of the Hefei metropolitan area was proposed. According to the results, if ecological sources and corridors at two scales are overlaid, the coincident area of ecological sources at two scales is 1719.95 km(2). As important ecological sources, Chaohu Lake Basin, Niuwangzhai, and Wuding Mountain, which are important areas to maintain the ecological network, need to be protected. Ten overlapping ecological corridors, which are mainly distributed in Changfeng County, are easily damaged long term. As a result, ecological nodes should be set up as temporary habitats for species transfer. In addition, based on the circuit theory and the cyclic window search method, calculating areas of pinch points at two scales yields 1637.75 km(2) and 434.22 km(2), respectively, and for areas of barrier points yields 2182.75 km(2) and 126.97 km(2), respectively. The ecological pinch points at two overlapping scales among them are important areas for future protection. Due to the small and fragmented spatial distribution in the urban area, pinch points with an average size of 0.58 km(2) are easy to be restored and will greatly improve the connectivity of the ecological network after restoration. Furthermore, through the quantitative identification of ecological network elements of two scales, the paper puts forward an optimization strategy for an ecological network in the Hefei metropolitan area from three aspects of point-line-polygon. The research results can reference decision-making concerning the delineation of urban growth boundary, regional ecological security pattern, land space renovation, and ecosystem restoration. |
| WOS研究方向 | Environmental Sciences ; Water Resources |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45440]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Anhui Jianzhu Univ, Sch Architecture & Planning, Hefei 230022, Peoples R China 2.Anhui Urbanizat Dev Res Ctr, Hefei 230022, Peoples R China 3.China Univ Geosci Wuhan, Sch Publ Adm, Wuhan 430074, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Haoran,Wang, Yongzheng,Eme, Chan,et al. Construction of Ecological Network Based on Multi-Scale Conversion and Nesting[J]. WATER,2021,13(9):-. |
| APA | Yu, Haoran.,Wang, Yongzheng.,Eme, Chan.,Fan, Xin.,Rong, Yuejing.,...&Liang, Zhe.(2021).Construction of Ecological Network Based on Multi-Scale Conversion and Nesting.WATER,13(9),-. |
| MLA | Yu, Haoran,et al."Construction of Ecological Network Based on Multi-Scale Conversion and Nesting".WATER 13.9(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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