Ecological Security and Ecosystem Quality: A Case Study of Xia-Zhang-Quan Metropolitan Area in China

Liang, Fachao; Bai, Mengdi; Hu, Qiyu; Lin, Sheng-Hau

doi:10.3390/land11050707

Cited by 3 publications

(2 citation statements)

References 19 publications

(22 reference statements)

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“…Landscape indices are used to determine the relationship between landscape pattern and the process of landscape change [36]. In this study, the number of patches (NP), patch density (PD), largest patch index (LPI), edge density (ED), landscape shape index (LSI), splitting index (SPLIT), Shannon's diversity index (SHDI), and aggregation index (AI) were selected to reflect the level of landscape pattern subsystem [44,45]. The selected landscape index was calculated using FRAGSTATS 4.2 software.…”

Section: Construction Of the Index Systemmentioning

confidence: 99%

The Spatiotemporal Evolution of Ecological Security in Border Areas: A Case Study of Southwest China

Qian

Teng

et al. 2022

Land

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Fewer studies on ecological security (ES) in border areas limit the synergistic development of border areas in the context of rapid globalization. The study of ES in border areas of southwest China can enrich the evaluation methods, summarize the knowledge related to ES in border areas, and provide references for similar areas in the world. Therefore, twenty-five international border counties in Yunnan Province were selected to establish a system to evaluate ES; an entropy weight TOPSIS model was used to evaluate the changes in ES from 2004 to 2019. Then, an obstacle degree model was used to diagnose the factors affecting ES. The state of ES was predicted by a gray prediction model (GM) (1,1) in 2025 and 2030. The results show that an improving ES situation presented a spatial distribution pattern of high to low from the southwest to the west and east. Various factors, including fixed assets investment, per-capita fiscal revenue, per-capita GDP, food production, and water regulation, created obstacles to a desirable ES in the study area. Although the ES of border areas will maintain an upward trend under the existing development model, the number of counties that will reach a secure state of ES in 2025 and 2030 is predicted to only be 1 and 2, respectively.

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Section: Construction Of the Index Systemmentioning

confidence: 99%

The Spatiotemporal Evolution of Ecological Security in Border Areas: A Case Study of Southwest China

Qian

Teng

et al. 2022

Land

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“…In terms of ecological optimization, there are apparent differences in proposed optimization strategies because of scholars’ different claims. For example, Yang Junfu optimized the ecological security pattern of the Loess Plateau in China through landscape index [ 18 ], Shi H et al optimized the ecological security pattern of Tianchi in Xinjiang based on landscape pattern [ 30 ], and Liang Fachao et al optimized the ecological security pattern of Quanzhou, China from the perspective of ecological environment quality [ 31 ]. In general, the current optimization strategies based on ecological security pattern focus on optimizing ecological security patterns through landscape index, pattern, and ecological environment quality.…”

Section: Introductionmentioning

confidence: 99%

Ecological Restoration Strategies for Mountainous Cities Based on Ecological Security Patterns and Circuit Theory: A Case of Central Urban Areas in Chongqing, China

Zhang

Zhu

et al. 2022

IJERPH

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Urban ecosystems are under enormous pressure in the background of rapid urbanization. Mountainous cities are more prone to degradation due to dramatic topography. Ecological security patterns combined with circuit theory can effectively identify ecological barriers and “pinch points” and propose targeted ecological restoration and protection strategies. In order to ensure the ecosystem health and sustainable development of mountainous cities, this paper applies the MSPA model, Invest model, MCR model, and Linkage Mapper Tools to identify the ecological source regions, eco-corridors, and “key points” in the central metropolitan area of Chongqing. The study shows that: (1) There are 43 ecological sources in the central urban area of Chongqing, with a total area of 986.56 km2, and it forms a linear distribution with a multi-patch scattering pattern. (2) A series of 86 ecological corridors in the area, totaling 315.14 km, show a pattern of more corridors in the east and fewer in the west. (3) The research found 17 sites totaling 24.20 km of the ecological corridor in the barrier point zone. In addition, up to 22 segments, totaling 19.27 km of the ecological corridor, are located in the “pinch point” zone. (4) The barrier point and “pinch point” on the ecological corridors are identified to obtain their type, scale, and location, thus suggesting conservation-restoration.

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Valoración económica de los servicios ecosistémicos: una revisión sistemática

Sánchez¹,

Figueroa²,

Vargas-Marín³

2023

RVG

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La valoración económica de los servicios ecosistémicos resulta clave en una época caracterizada por la aceleración del deterioro ambiental ligado al crecimiento económico. Pero aún no existe consenso acerca de los métodos más adecuados, por lo que las propuestas surgidas desde la economía difieren sustancialmente de las provenientes de las ciencias naturales. El objetivo de este trabajo es presentar un avance en una posible integración disciplinar basado en la revisión de las publicaciones en esta área; para tal fin se recurrió al algoritmo Tree of Science (ToS) para compilar y analizar la información obtenida en las bases de datos Web of Science y Scopus. Se obtuvieron 1922 registros consolidados, los cuales permitieron identificar que el año 2017, es el que tiene la mayor cantidad de fuentes. La mayor parte de las investigaciones se generan en pocos países, siendo los países latinoamericanos los más escasos. En conclusión, los trabajos seminales en este tema propenden por una valoración de los servicios económicos, ecológicos y sociales de los ecosistemas, a diferencia de los métodos tradicionales en economía que privilegian los servicios de tipo económico; sin embargo, tales investigaciones apuntan a mantener la valoración en términos monetarios a la manera como se hace en economía. La revisión realizada evidencia la necesidad de hacer investigaciones sobre valoración de SE en Latinoamérica, dadas las peculiaridades ecológicas, económicas y sociales que caracterizan a la región.

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Ecological Security and Ecosystem Quality: A Case Study of Xia-Zhang-Quan Metropolitan Area in China

Cited by 3 publications

References 19 publications

The Spatiotemporal Evolution of Ecological Security in Border Areas: A Case Study of Southwest China

The Spatiotemporal Evolution of Ecological Security in Border Areas: A Case Study of Southwest China

Ecological Restoration Strategies for Mountainous Cities Based on Ecological Security Patterns and Circuit Theory: A Case of Central Urban Areas in Chongqing, China

Valoración económica de los servicios ecosistémicos: una revisión sistemática

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