城市和农村空间利用效率基于本地和远程合模型之间的合协调的动态演变和趋势预测
Fengtai Zhang1,2, Aiyu Xie1, Jiawei Zhang1
1School of Management, Chongqing University of Technology, Chongqing, 400054, China.
Heliyon
|June 6, 2024
概括
优化领土空间利用对于可持续发展至关重要. 这项研究显示,在成都-重庆城市聚集区,城市空间利用效率落后于农村地区,新模型更好地捕捉了区域发展相关性.
科学领域:
- 城市和区域规划 城市和区域规划
- 可持续发展研究 可持续发展研究
- 空间经济学 空间经济学
背景情况:
- 全球城市化需要理解领土空间利用效率,以实现平衡的城乡发展.
- 城市集群是未来城市发展的关键,需要对空间利用模式进行分析.
- 现有的模型可能无法完全捕捉到领土空间利用中的复杂相互作用.
研究的目的:
- 在成都-重庆城市聚集区 (CCEC) 探索城市和农村空间利用效率 (URSUE).
- 使用合协调度 (CCD) 视角分析URSUE.
- 引入和应用一个局部和远程合协调 (LTCCD) 模型,计算远程交互.
主要方法:
- 城市和农村空间利用效率的比较分析.
- 合协调度 (CCD) 模型的应用.
- 开发和实施本地和远程连接协调 (LTCCD) 模型,以评估互动开发.
主要成果:
- 在CCEC中,经济发达的城市显示城市空间利用效率落后于农村地区.
- 根据LTCCD模型,地理中心地区的协调程度更高.
- 与其CCD相比,经济核心城市的LTCCD更高,特别是成都市,突出了空间溢出效应.
结论:
- LTCCD模型通过考虑区域发展相关性和空间溢出效应,提供了对领土空间利用的更全面的评估.
- 调查结果提供了对城市和农村空间分配挑战的见解.
- 该研究为旨在实现可持续发展的城市聚集区的领土空间利用规划提供了指导.
相关概念视频
Short-distance Transport of Resources
15.9K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
15.9K
Maximum Power Flow and Line Loadability
107
The maximum power flow for lossy transmission lines is derived using ABCD parameters in phasor form. These parameters create a matrix relationship between the sending-end and receiving-end voltages and currents, allowing the determination of the receiving-end current. This relationship facilitates calculating the complex power delivered to the receiving end, from which real and reactive power components are derived.
107
Distributed Loads: Problem Solving
642
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
642
Relation Between the Distributed Load and Shear
630
Understanding the relationship between the distributed load and shear force in structural analysis is crucial for analyzing beams subjected to various loading conditions. Consider the case of a beam experiencing a distributed load, two concentrated loads, and a couple moment.
630
Distributed Loads
529
Distributed loads are a common type of load that engineers and scientists encounter in various practical situations. Distributed loads often refer to a type of load spread over a surface or a structure and can be modeled as continuous force per unit area.
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
529
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
43
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...
43


