An analysis of regional carbon stock response under land use structure change and multi-scenario prediction, a case study of Hefei, China

Wang, Yiling; Liang, Dongdong; Wang, Jian; Zhang, Yajie; Chen, Fei; Ma, Xiaoyuan

doi:10.1016/j.ecolind.2023.110293

Cited by 20 publications

(6 citation statements)

References 66 publications

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“…The land-use dynamic attitude is an indicator that reflects the rapid change in land-use types; the greater the attitude toward land use, the faster the rate of land change and the more positively correlated the two are [45]. The land-use dynamic attitude includes the single land-use dynamic attitude (K) and integrated land-use dynamic attitude (LC), as detailed in Table 3.…”

Section: Land-use Change Analysismentioning

confidence: 99%

Landscape Ecological Risk and Drivers of Land-Use Transition under the Perspective of Differences in Topographic Gradient

Zhang,

Yu,

Feng

et al. 2024

Land

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Human activities have caused different degrees of land-use change on different topographic gradients, with impacts on the landscape and ecosystem. Effectively preventing and addressing ecological risk (ER) and achieving harmonious coexistence between humans and nature are important aspects of sustainable development. In this study, we used Gansu Province as an example, adopted five periods of land-use data in 1980, 1990, 2000, 2010 and 2020, and used the geoinformatic Tupu method and the terrain distribution index to study land-use changes under different topographic gradients, and then constructed the landscape ecological risk assessment (LERA) model based on the landscape pattern index to analyze landscape ecological risk (LER) spatiotemporal changes under different topographic gradients, and finally explored the LER driving factors using the geodetector model. The results showed that (1) the dominant land-use types were unused land and grassland, accounting for approximately 74% of the land. The situation of transferring and changing each type was more drastic. The distribution and changes in cropland and built-up land were easily found in low topographic gradient areas with low elevations and small slopes; the distribution and changes in woodland, grassland and water areas were easily found in high topographic gradient areas with high elevations and large slopes. (2) The landscape ecological risk index (LERI) was 0.018, 0.019, 0.019, 0.019 and 0.020, respectively, with spatial expressions of high in the northwest and low in the southeast. Low LER was concentrated in high topographic gradient ecological reserves; high LER was concentrated in low topographic gradient human interference areas and high topographic gradient natural environmental complex areas. (3) Natural factors mainly acted on the LER on moderate and high topographic position gradients; socioeconomic factors mainly acted on the LER on low topographic position gradients. Human interference interacted with natural factors more than human interference alone on LER. This study can provide a scientific basis for ensuring ecological security and sustainable development in areas with complex topography and geomorphology.

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Section: Land-use Change Analysismentioning

confidence: 99%

Landscape Ecological Risk and Drivers of Land-Use Transition under the Perspective of Differences in Topographic Gradient

Zhang,

Yu,

Feng

et al. 2024

Land

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“…The IPCC (Intergovernmental Panel on Climate Change) identified land use changes as a major factor contributing to alterations in carbon sequestration in terrestrial ecosystems [45], owing to the varying carbon sequestration capacities of different land use types [29]. Urbanization-induced shifts from high to low carbon density land use types were identified as the second largest cause of carbon sequestration increase after CO 2 emissions from fossil fuel combustion [45].…”

Section: Impact Of Land Use Changes On Ecosystem Servicesmentioning

confidence: 99%

“…Moreover, global ecosystems continue to degrade due to increasing anthropogenic disturbances [5,18]. Many studies have demonstrated that the pattern, intensity, and type of land use changes can significantly affect ecosystem services [29,30]. However, the impact of climate change and human activities on ecosystem services such as water conservation, carbon sequestration, and soil conservation remain unclear.…”

Section: Introductionmentioning

confidence: 99%

Long-Term Dynamics of Ecosystem Services and Their Influencing Factors in Ecologically Fragile Southwest China

Ci,

Ye,

Liao

et al. 2023

Sustainability

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Southwest China has one of the largest karst landscapes on the Earth and an ecologically fragile environment. A better understanding of how ecosystem services function in karst areas helps ecological preservation and policy implementation. However, little effort has been made to evaluate the long-term dynamics of ecosystem services across Southwest China. This study systematically analyzed the spatio-temporal patterns and the values of three typical ecosystem service functions, including water conservation, carbon sequestration, and soil conservation, as well as the effects of precipitation and land use changes between 2000 and 2020. The results showed that water conservation exhibited an overall decrease from southeast to northwest, while soil conservation showed the opposite trend. The regions with an increasing trend in carbon sequestration were mainly distributed in Guizhou, Guangxi, and Sichuan. Compared to the year 2000, the percentage of water conservation and soil conservation decreased by 4.50% and 0.76%, respectively. However, carbon sequestration increased by 94.35%. The total value of ecosystem services in Southwest China showed a 90.00% increase in 2020 relative to 2000. Water conservation and carbon sequestration had a much closer correlation with precipitation. The impact of soil conservation was more significantly influenced by land use changes.

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“…(1) A single dynamic index is used to describe the rate and magnitude of change of a single land-use type over a period, which can characterize land-use change. The formula for a single motivation is [55]:…”

Section: Super-sbm Modelmentioning

confidence: 99%

Relationship Identification between Water-Energy Resource Utilization Efficiency and Ecological Risk in the Context of Assessment-Decoupling Two-Stage Framework—A Case Study of Henan Province, China

Zhong,

Zuo,

et al. 2023

Water

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The situation of resource utilization and eco-environment protection remains critical globally. The harmony between eco-environment health and water-energy utilization efficiency is a strong support for the realization of high-quality development. In this paper, an Assessment-Decoupling two-stage framework was developed to investigate the relationship between water-energy resource utilization and ecological security. In detail, an improved input-output indicator system was constructed to assess the water-energy resource utilization efficiency (WEUE), and its influencing factors were examined from multiple system perspectives; then, we intended to evaluate the ecological risk (ER) from a raster-scale perspective based on land-use types; and finally, the decoupling idea was introduced to quantify the fitness relationship of the above two aspects. The framework was applied to Henan Province, China. The study found that: (1) the WEUE of Henan Province shows a “W” pattern of development during 2000–2020; in 2000–2010, the WEUE of South Henan declined, while in 2010–2020, the WEUE of Henan Province gradually improved, with significant increases in various districts. (2) The ecological risk index (ERI) in Henan Province generally shows a decreasing trend, and the spatial difference is more obvious, with the high-risk areas mainly concentrated in the central, east, and south Henan, and the west of Henan is mainly a low-risk area. (3) There is strong spatial variation in the decoupling states of WEUE and ERI of the 18 districts in Henan Province, and the differences become more pronounced over time. The number of districts with a strong negative decoupling state has been increasing during the entire period, and a total of 14 districts have reached the above state in 2020. The developed framework offers a new idea for clarifying the relationship between resource utilization and ecological conditions, and the obtained results can provide data support for the realization of sustainable development.

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An analysis of regional carbon stock response under land use structure change and multi-scenario prediction, a case study of Hefei, China

Cited by 20 publications

References 66 publications

Landscape Ecological Risk and Drivers of Land-Use Transition under the Perspective of Differences in Topographic Gradient

Landscape Ecological Risk and Drivers of Land-Use Transition under the Perspective of Differences in Topographic Gradient

Long-Term Dynamics of Ecosystem Services and Their Influencing Factors in Ecologically Fragile Southwest China

Relationship Identification between Water-Energy Resource Utilization Efficiency and Ecological Risk in the Context of Assessment-Decoupling Two-Stage Framework—A Case Study of Henan Province, China

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