Biodiversity conservation of mountains-rivers-forests-farmlands-lakes-grasslands using an ecological network: A case study on the Zuoyoujiang river basin in Guangxi Province, China

Fangning, 史芳宁 Shi; Shiliang, 刘世梁 Liu; Yi, 安毅 An; Yongxiu, 孙永秀 Sun

doi:10.5846/stxb201905311144

Cited by 6 publications

(6 citation statements)

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“…2 K factor represents the soil erodibility, which primarily is used to analyze the degree of erosion for different types of soil. The values for K are adopted from the research of Shi et al (2019). DEM (Digital Elevation Model) data is used to extract terrain factors L and S. The calculation formula for the LS (length-slope) factor is based on the method proposed by Yang and collaborators (Yang, et al, 2006).…”

Section: Soil Conservationmentioning

confidence: 99%

“…Chinese scholars have predominantly engaged in micro-scale research into the geographical conditions and ecological processes of various administrative units, while foreign scholars have primarily focused on urban-rural boundary planning, natural conservation, and the support of ecosystem services when addressing ecological security pattern. They emphasize regulated management of ecosystems, aiming to ensure the sustainable provision of ecosystem services and enhance human wellbeing within regional development (Kong and Yin, 2008;Yin, et al, 2016;Peng, et al, 2017;Shi, et al, 2019;Liu, et al, 2022). These diverse spatial scale researches, ranging from macro-level investigations of natural resources to micro-level examinations of geographical conditions and ecological processes within administrative units, significantly enriches the conceptual depth of ecological security pattern.…”

Section: Introductionmentioning

confidence: 99%

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Construction and optimization of ecological security patterns in the songnen plain

Liu,

Chen,

Zhang

et al. 2024

Front. Environ. Sci.

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To address the ecological security issues in the Songnen Plain, this study constructs the ecological security pattern by using the Multi-Criteria Evaluation Method, Minimum Cumulative Resistance (MCR) model, and Circuit Connectivity Model. Results show that: 1) The ecological source areas were 66, 52, and 56 blocks in 2000, 2010, and 2020 respectively, which are composed mainly of forests, water bodies, and wetlands. The distribution of resistance values of the ecological resistance surface shows a gradually increases trend from the source areas to the outward surrounding regions. The high and low value areas are more dispersed, consisting with the overall spatial distribution; 2) The numbers of ecological corridors show a temporal declining trend from 178 in 2000 to 159 in 2020 with a reduction of 645.46 km in total length. Node areas are mainly distributed in the southwestern and central-eastern regions and its number decreased from 232 in 2000 to 229 in 2020. The sizes of obstacle areas are 74029.52 km2, 70203.72 km2, and 75529.72 km2 in the three periods; 3) The size of important ecological source areas has decreased by 5779.16 km2, the area of medium ecological source areas has increased by 11466.44 km2, and the area of general ecological source areas has increased by 9509.16 km2. The areas being classified as ecological conservation, ecological enhancement, ecological restoration, and ecological control are 30346.68 km2, 8480.56 km2, 51473.92 km2, and 122047.48 km2, respectively. The multiple spatial pattern optimization strategies are proposed based on the identified ecological source areas, corridors, node points, and other comprehensive ecological security patterns. It not only provides practical reference for the ecological restoration and ecological protection in the Songnen Plain, but also can be used for the ecological security pattern investigations in other study regions in the world.

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Section: Soil Conservationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Construction and optimization of ecological security patterns in the songnen plain

Liu,

Chen,

Zhang

et al. 2024

Front. Environ. Sci.

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“…This method directly reflects the structural topology and complexity of the ecological network. Most previous ecological network studies have primarily concentrated on constructing and optimizing regional ecological networks, evaluating ecological network structures, and assessing landscape connectivity based on ecological networks [15,[18][19][20]. Nevertheless, certain aspects, such as identifying ecological sources and evaluating ecological network structures, have room for improvement.…”

Section: Introductionmentioning

confidence: 99%

Spatial Optimization and Temporal Changes in the Ecological Network: A Case Study of Wanning City, China

Zou,

Fan,

Gong

2024

Land

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Ecological networks serve as vital tools for safeguarding biodiversity and ensuring regional ecological stability. This study, conducted in Wanning City, employs minimum-area threshold analysis to pinpoint crucial ecological sources while extracting potential ecological corridors using the minimum cumulative resistance model. Our investigation delves into the ecological network’s elements and structural transformations within Wanning City, spanning the period from 2000 to 2020, and assesses the priorities for ecological network preservation. The findings of our research reveal noteworthy spatial disparities in the distribution of ecological sources across Wanning City. Furthermore, the ecological corridors display sparse patterns in the north and denser patterns in the south. Over the two decades from 2000 to 2020, Wanning’s ecological resources exhibited a discernible trend of contraction and fragmentation, accompanied by an uneven spatial distribution. The average path length of the ecological corridors has increased, indicative of reduced biological flow efficiency. Correspondingly, the structural accessibility of the ecological network has decreased, signifying a decline in landscape connectivity. Based on our analysis, we propose an ecological protection and restoration framework denoted as “One Belt, Four Sources, Eight districts, multiple corridors, and multiple points”. Therefore, with the Shangxi–Jianling, Liulianling, Nanlin, and Jiexin nature reserves as the core area, and Houan Town, Damao Town, Changfeng Town, and Liji Town as the key restoration areas, we have proposed an ecological protection and restoration pattern.

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“…Ecological network theory originated from the European natural resource conservation movement in the 1980s. It is based on landscape ecology [8] and integrates biogeography [9], urban planning [10], and other disciplines. It uses land interaction effects to reflect the rules Land 2023, 12, 1529 2 of 13 governing ecological elements and functional structure and to determine the spatial pattern required to maintain the stability of ecosystems [11].…”

Section: Introductionmentioning

confidence: 99%

Construction and Optimization of an Ecological Network in Funiu Mountain Area Based on MSPA and MCR Models, China

Wang,

Shi,

Huo

et al. 2023

Land

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Rapid urbanization has led to a significant expansion of urban space, causing ecological problems such as fragmentation, declining landscape connectivity, and decreasing biodiversity. There is an urgent need to mitigate the conflict between urban expansion and ecological environmental protection by constructing ecological networks to help promote sustainable regional development. This study selected the Funiu Mountain area as the study area. Morphological spatial pattern analysis, the minimal cumulative resistance model, and network index evaluation were used to construct an ecological network in the study area and conduct a comparative analysis with local nature reserves. The results showed: (1) nine ecological source sites were identified, concentrated in the central and northern regions, which had a high spatial overlap with local nature reserves; (2) 34 ecological corridors were extracted, which could effectively connect all ecological source sites as well as most nature reserves; (3) 32 ecological nodes were identified, of which 20 strategic points were scattered along ecological corridors, and 12 artificial environment points were scattered in low-lying areas around nature reserves; (4) the ecological network showed a structure of central concentration and peripheral dispersion. The structural evaluation of the network indicated that it had strong integrity.

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Biodiversity conservation of mountains-rivers-forests-farmlands-lakes-grasslands using an ecological network: A case study on the Zuoyoujiang river basin in Guangxi Province, China

Cited by 6 publications

References 0 publications

Construction and optimization of ecological security patterns in the songnen plain

Construction and optimization of ecological security patterns in the songnen plain

Spatial Optimization and Temporal Changes in the Ecological Network: A Case Study of Wanning City, China

Construction and Optimization of an Ecological Network in Funiu Mountain Area Based on MSPA and MCR Models, China

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