基于"结构-功能"的视角,在沿海城市建设和优化生态走廊
Bowen Jin1, Jianwei Geng1, Zhengning Ding2
1College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou, 350102, China.
Scientific reports
|November 14, 2024
概括
本研究使用MSPA-RSEI和MCR方法确定了乐区的生态来源并构建了优化的生态走廊. 这些发现有助于城市生态规划和沿海生态系统保护.
科学领域:
- 城市生态城市生态学
- 景观生态学 景观生态学
- 环境科学 环境科学
背景情况:
- 城市发展的增加给生态环境保护带来了挑战.
- 生态走廊对于保持城市生态系统健康和连通性至关重要.
- 在沿海城市中,平衡经济增长与环境保护是关键问题.
研究的目的:
- 确定福州长乐区的生态资源,建设/优化生态走廊.
- 为生态来源识别提出一个"结构-功能"的观点.
- 为沿海城市地区的生态建筑提供科学基础.
主要方法:
- 形态空间模式分析 (MSPA) 和遥感生态指数 (RSEI) 用于生态来源的识别.
- 最低累积电阻 (MCR) 模型和电路理论用于走廊的构建和优化.
- 链接映射器,点和障碍映射器,以及用于走廊评估和宽度确定的缓冲区分析.
主要成果:
- 使用MSPA-RSEI确定了20个生态来源.
- 31个生态走廊 (8级1,13级2,10级3) 已建成.
- 确定了关键的"紧点" (6.01平方公里) 和障碍点 (2.59平方公里),具有独特的土地使用特征.
- 确定了最佳的走廊宽度 (一级30米,二级60米),从而增加了生态流.
结论:
- 综合的MSPA-RSEI和MCR方法有效地识别生态来源并构建优化的走廊.
- 了解点和障碍对于有针对性的生态恢复和管理至关重要.
- 该研究为城区和类似的沿海城市环境的生态规划提供了宝贵的见解.
相关概念视频
Design Example: Sustainability in Concrete Building
160
As the construction industry moves towards more eco-friendly practices, concrete's adaptability and its ability to incorporate sustainable features make it a key material in the drive towards greener building solutions.
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...
160
Design Example: Maintaining Level of an Embankment
52
Constructing a roadway embankment over uneven terrain requires precise leveling to ensure stability and proper drainage. Surveyors use a leveling instrument and staff to calculate ground elevations and determine the required fill material at each point along the embankment alignment.The process begins by positioning a leveling instrument near a benchmark with a known elevation. A backsight reading establishes the instrument height, which serves as a reference for subsequent measurements. A...
52
Design Example: Alignment of a Road Line Using GIS
42
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
42
Design Example: Design of an Irrigation Channel
77
Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature a flat bottom and sloping sides, making them stable and easier to construct compared to other shapes. The bottom width and side slope ratio are determined based on the required flow capacity and site conditions. The side slope is kept gentle for unlined channels to prevent soil erosion.Hydraulic parameters in channel design include the flow...
77
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
40
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
40
Habitat Fragmentation
17.4K
Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
17.4K


