Ecological conservation and restoration of Life Community Theory based on the construction of ecological security pattern

Wang, Xiaoyu; Feng, Zhe; Wu, Kening; Qian, Lin

doi:10.5846/stxb201905281103

Cited by 2 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The accessibility and connectivity between ecological patches can be judged by setting the minimum expansion resistance value, since species need to overcome certain resistance for spatial movement [ 19 ]. The setting of the resistance value of ecological expansion should consider various factors influencing the dispersal behavior of specific wild species [ 20 ].…”

Section: Methodsmentioning

confidence: 99%

Identifying Migration Routes of Wild Asian Elephants in China Based on Ecological Networks Constructed by Circuit Theory Model

Jiang

Liu

Jiang

et al. 2023

Animals

View full text Add to dashboard Cite

Humans overlap with Asian elephants, resulting in frequent costly human–elephant conflicts, which disturb and even threaten local residents. In this study, we treat provincial and national nature reserves where Asian elephants still exist and other alternative habitats suitable for Asian elephants in southern Yunnan, China, as ecological patches. By using this approach, we can treat the terrain and surface state factors that hinder the migration of Asian elephants as a form of ecological resistance surface. We can then use a circuit theory model and remote sensing data to construct an ecological network, which allows us to identify ecological corridors and ecological pinch points. Herein, the possible migration routes of wild Asian elephants were identified. The main results are as follows: (1) In the study area, dense forests with steep slopes and high altitudes, cultivated land, and building land have greater migration resistance, while the gently undulating shrubs, bamboo forests, and grasslands far away from the city have less migration resistance. (2) There are three ecological corridor groups in the study area, mainly composed of shrub and grassland. The ecological corridors identified in this paper are the most likely migration routes of wild Asian elephants in China, and areas with higher simulated current densities reflect a higher probability of Asian elephants passing through. (3) According to the analysis, the ecological pinch points in the study area are 602 km2 in total, and woodland and grassland account for 89.2% of the total ecological pinch area. The areas where the pinch points are located have a high probability of Asian elephants passing through and a narrow space. Our findings can provide suggestions and solutions for the current conservation of wild Asian elephant species, alleviate human–elephant conflicts, promote the harmonious coexistence between humans and nature, and provide reference for biological protection and biological reserve planning.

show abstract

Section: Methodsmentioning

confidence: 99%

Identifying Migration Routes of Wild Asian Elephants in China Based on Ecological Networks Constructed by Circuit Theory Model

Jiang

Liu

Jiang

et al. 2023

Animals

View full text Add to dashboard Cite

show abstract

“…Landscape connectivity is a measure of the continuity among landscape spatialstructure units [30], reflecting the extent to which landscape promotes or hinders species movement among the patches [51,52]. Higher landscape connectivity is conducive to maintaining ecological processes and biodiversity.…”

Section: Connectivity Evaluationmentioning

confidence: 99%

“…In circuit theory, ecological sources are equivalent to circuit nodes, and the non-ecological-source areas are equated with the resistors with different resistance values. The random walk of electrons in the circuit was used to simulate the migration process of individual species in the landscape so as to predict the movement law of species and identify multiple paths in the landscape surfacethat is, the ecological corridors [30,51]. Ecological nodes include barrier points and pinch points, which could be identified by the Barrier Mapper and Pinchpoint Mapper tools in the Linkage Mapper 3.0 toolbox.…”

Section: Extraction Of Ecological Corridors and Nodesmentioning

confidence: 99%

“…[15,26,27]. For evaluation of the patches themselves, some scholars are inclined to the patch importance of connectivity [28][29][30]. MSPA (morphological spatial-pattern analysis), a morphology-based pattern-analysis method, is also applied to extract the core and islet in MSPA as ecological spaces that can serve as habitats for species [31,32].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Construction and Optimization of the Ecological Security Pattern in Liyang, China

Fan

Cheng

Tan

et al. 2022

Land

View full text Add to dashboard Cite

Rapid urbanization with unreasonable human disturbances has caused a serious ecological crisis. By constructing an ecological-security pattern (ESP), key landscape elements can be effectively identified. ESP optimization helps to improve a city’s ecosystem services and achieve the harmonious development between man and nature. Therefore, it is crucial to construct an accurate ESP and propose practical ESP optimization strategies. Taking Liyang City as an example, this paper first constructed the ESP with a combination methodology of circuit theory, graph theory, the granularity-reverse method, and the comprehensive-evaluation method. Then, strategies for ESP optimization were proposed in terms of ecological restoration and ecological source promotion. Finally, the optimized ESP was verified by quantitative assessment involving landscape connectivity and network structure. Research results show that the current ESP includes 24 ecological sources, 41 ecological corridors, and 50 ecological nodes that need ecological restoration. In the optimized ESP, 31.5 km2 of ecological land is added, 3 ecological sources are added, 55 ecological corridors are generated, and the number of nodes in the ecological network is increased by 4. By comparing the evaluation results before and after optimization, it can be seen that the optimization scheme has a positive effect on landscape connectivity and ecological coordination of the whole region.

show abstract

Ecological conservation and restoration of Life Community Theory based on the construction of ecological security pattern

Cited by 2 publications

References 0 publications

Identifying Migration Routes of Wild Asian Elephants in China Based on Ecological Networks Constructed by Circuit Theory Model

Identifying Migration Routes of Wild Asian Elephants in China Based on Ecological Networks Constructed by Circuit Theory Model

Construction and Optimization of the Ecological Security Pattern in Liyang, China

Contact Info

Product

Resources

About