Related Experiment Video
Updated: Oct 7, 2025
12:44
Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
8.2K
Simulating Urban Expansion Based on Ecological Security Pattern-A Case Study of Hangzhou, China
Xiaochang Yang1, Sinan Li1, Congmou Zhu1
1Institute of Applied Remote Sensing and Information Technology, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
International Journal of Environmental Research and Public Health
|January 11, 2022
Summary
Ecological security patterns effectively curb urban expansion by simulating future growth scenarios. Hangzhou
Area of Science:
- Urban ecology and spatial planning
- Geographic Information Systems (GIS) and remote sensing
- Sustainable development and environmental management
Background:
- Disordered urban expansion threatens ecological land and regional sustainable development.
- Ecological security patterns offer a framework to balance urban growth and ecological preservation.
- Understanding the impact of these patterns on urban expansion is crucial for effective planning.
Purpose of the Study:
- To analyze the impact of ecological security patterns on urban expansion in Hangzhou.
- To simulate urban expansion under natural and ecological security scenarios using advanced modeling techniques.
- To provide insights for urban planning and green development in metropolitan areas.
Main Methods:
- Utilized the Cellular Automata-Markov (CA-Markov) model and the Future Land Use Simulation (FLUS) model.
- Simulated urban expansion patterns for 2030 under two distinct scenarios: natural development and ecological security.
- Identified and analyzed ecological source areas, corridors, and nodes within the study region.
Main Results:
- Ecological source areas are concentrated in western mountainous regions, with 14 corridors primarily along valleys and rivers.
- Construction land expansion showed directional shifts and outward movement from the city center between 2000 and 2018.
- Simulations indicated that ecological security patterns significantly reduce construction land area, proportion, and growth rates compared to natural development by 2030.
Conclusions:
- Ecological security patterns demonstrate a clear capacity to effectively curb and manage urban expansion.
- The study highlights the importance of integrating ecological considerations into urban planning for sustainable development.
- Findings offer valuable theoretical and practical references for metropolitan planning and green development strategies.
Related Concept Videos
01:17Design Example: Analyzing Capacity Contours for Flood Risk Assessment
140
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...
140
02:31Habitat Fragmentation
18.1K
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.
18.1K
01:23Sampling Plans
317
Sampling is a crucial step in analytical chemistry, allowing researchers to collect representative data from a large population. Common sampling methods include random, judgmental, systematic, stratified, and cluster sampling.
Random sampling is a method where each member of the population has an equal chance of being selected for the sample. It involves selecting individuals randomly, often using random number generators or lottery-type methods. For example, when analyzing the properties of a...
Random sampling is a method where each member of the population has an equal chance of being selected for the sample. It involves selecting individuals randomly, often using random number generators or lottery-type methods. For example, when analyzing the properties of a...
317
01:21Manipulation and Analysis
85
GIS manipulation and analysis functions are vital for decision-making and planning. These activities range from data retrieval tasks, such as selecting information based on specific criteria, to advanced analytical techniques that address complex spatial problems.One critical GIS analysis method is overlaying, which combines multiple data layers to examine impacts. For example, overlaying a river-dammed lake boundary with road networks can identify affected infrastructure. Another common...
85
01:26Design Example: Sustainability in Concrete Building
242
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...
242
01:50Threats to Biodiversity
23.1K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
23.1K