Land use change induced ecological risk in the urbanized karst region of North China: a case study of Jinan city

Qi, Shanzhong; Guo, Jiamei; Jia, Rong; Sheng, Wenfei

doi:10.1007/s12665-020-09036-w

Cited by 11 publications

(5 citation statements)

References 17 publications

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“…The underlying surface has undergone drastic changes in urban areas. In horizontal landscapes, the permeable surfaces (such as cropland, forestland and grassland) have converted to impervious surfaces (such as residential area, commercial area and industrial area), and residential land witnessed the greatest growth [46,47]. In vertical landscapes, bungalows have converted to multi-layer and high-rise buildings, with high-rise buildings concentrated in the central urban areas and low-rise buildings concentrated in the city edge [48,49].…”

Section: Discussionmentioning

confidence: 99%

Impact of Urban Expansion on Rain Island Effect in Jinan City, North China

Zhao

Xia

et al. 2021

Remote Sensing

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Rapid urbanization leads to changes in urban micro meteorology, such as the urban heat island effect and rain island effect, which eventually brings about urban waterlogging and other problems. In this study, the data of precipitation, temperatures and impervious surfaces with long series and high resolution are used to study the rain island effect in Jinan City, China. MK-Sen’s slope estimator, Pettitt test and Pearson correlation analysis are used to quantitatively analyze the effects of urban expansion on extreme climate indices. The results show that Jinan City has experienced rapid urbanization since the 1978 economic reform, and the impervious surface areas have increased from 311.68 km2 (3.04%) in 1978 to 2389.50 km2 (23.33%) in 2017. Urban expansion has a significant impact on temperature, with large variations in extreme temperature indices over the intensive construction area relative to the sparse construction area, as well as significant positive correlations with impervious surfaces. Jinan City shows a certain degree of rain island effect, which seems to be spatially correlated with the urban heat island effect. The frequency of short-duration precipitation events significantly increases and the intensity of precipitation events generally increases. The magnitude and frequency of extreme precipitation indices in the intensive construction area significantly increases when compared to that in the sparse construction area, and they have a significant correlation with impervious surfaces. The tendency of Jinan City’s precipitation regime center shifts toward the intensive construction area.

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Section: Discussionmentioning

confidence: 99%

Impact of Urban Expansion on Rain Island Effect in Jinan City, North China

Zhao

Xia

et al. 2021

Remote Sensing

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“…At present, many regions are in a critical period of ecological environment quality transformation (Cohen, 2006). As the capital of Shandong, Jinan is in the stage of rapid urbanization and is faced with considerable discussion on land use and ecological environmental protection (Qi et al, 2020;Liu et al, 2021a). The systematic evaluation and analysis of land ecological security and its influencing factors have important significance for ecological civilization construction and highquality social economic development in Jinan.…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Differentiation of Land Ecological Security and Its Influencing Factors: A Case Study in Jinan, Shandong Province, China

Liu

Cao

Zhao

et al. 2022

Front. Environ. Sci.

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Land ecological security plays an important role in the sustainable land resources utilization and social economic development. In this study, the Pressure-State-Response (PSR) model was constructed to measure the land ecological security pattern based on grids scale of Jinan from 2006 to 2016. Then, Moran’s index was used to explore the spatial autocorrelation of the land ecological security score. Finally, the driving factors of land ecological security pattern differentiation in Jinan were revealed by using geographical detector method. The results showed that the level of land ecological security in Jinan, generally, decreased at the beginning and then gradually increased during the research periods. More specifically, land ecological security was represented as a downward trend in the central region and an upward trend in the southern mountainous area. The apparent regional heterogeneity of land ecological security level in Jinan showed the overall distribution pattern “low in the middle and high around” and the direction of urban expansion consistent with the low-level land ecological security. Land ecological security presented a significant spatial autocorrelation. The differentiation of land ecological security pattern was mainly driven by social and economic development factors, among which urban expansion was most important, so urban development should try to avoid occupying those areas with high level of land ecological security. From the study, the valuable information could be provided in the improvement of land ecosystem environment and in the facilitation of sustainable development.

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“…Although many studies and investigations have been done in the last forty years in the Jinan's karst area (Li, 1985;Li & Kang, 1999;Wu et al, 2010;Gao et al, 2020), the most have mainly concentrated on the purpose of karst spring protection. However, the karst landscape disturbance resulted from land use change in the study area has received little attention, although the issue on land use change has been reported in Jinan city (Qi et al, 2020). So, the present study is to detect land use change through GIS and three Landsat TM images of 1987, 2000, and to evaluate its landscape response to the karst ecosystem of from 1987 to 2018 which would have implicational significance to urban planning and sustainability.…”

Section: Introductionmentioning

confidence: 96%

“…Belonging to one of the China's northern karst mountainous areas and well known for its fractured karst springs, Jinan city is in the stage of rapid urban expansion and is faced with considerable landscape pattern change of land use and ecological environmental protection (Qi et al, 2020;Liu et al, 2022), particularly in its karst mountain region. Meanwhile, the karst urban mountain area is currently faced with many environmental problems (Qi & Zhang, 2011), landscape change of urban hills (Xu et al, 2012), and ecological risks (Qi et al, 2020). Although many studies and investigations have been done in the last forty years in the Jinan's karst area (Li, 1985;Li & Kang, 1999;Wu et al, 2010;Gao et al, 2020), the most have mainly concentrated on the purpose of karst spring protection.…”

Section: Introductionmentioning

confidence: 99%

Landscape Change of Land Use in the Karst Region of Jinan City, North China

Heng

2023

Journal of Environmental Engineering and Landscape Management

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With the rapid development of urbanization, land use change has occurred in most karst mountain regions of North China over the last decade, so studying landscape pattern changes induced by urbanization would have implicational significance to regional planning and sustainability. Based on RS, GIS, and field investigation, land use change induced by urbanization in Jinan city belonging to the karst mountainous area of North China was analyzed over 30 years from 1987 to 2018, and further the landscape response of these changes was explored. The results indicate that (1) the most obvious changes have occurred in both urban/built-up land area and cropland area with rapid urbanization development in Jinan’s karst area, and the former increased by 246.4 km2 but the latter decreased by 343.3 km2 from 1987 to 2018; (2) landscape pattern of land use is profoundly changed by quick urbanization in the period from 2000 to 2018, but does not siginificently from 1987 to 2000; and (3) in the monitoring period, the cropland’s shape inclines to fragmentation and regularization, and the shapes of urban/built-up land and barren land have become increasingly distinct from the patch class level; from patch landscape level, the artificial landscape type (urban/built-up land) is increasingly dominant but the natural landscape type (grassland) is decreasingly dominant, thereby resulting in the disturbance of urban karst environment of Jinan city. Therefore, a protection policy should be taken to achieve strong urban karst sustainable development of North China.

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Land use change induced ecological risk in the urbanized karst region of North China: a case study of Jinan city

Cited by 11 publications

References 17 publications

Impact of Urban Expansion on Rain Island Effect in Jinan City, North China

Impact of Urban Expansion on Rain Island Effect in Jinan City, North China

Spatiotemporal Differentiation of Land Ecological Security and Its Influencing Factors: A Case Study in Jinan, Shandong Province, China

Landscape Change of Land Use in the Karst Region of Jinan City, North China

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