Dynamic prediction and impact factors analysis of ecological risk in Chinese farming-pastoral ecotone

Yan, Jiye; Li, Guang; Qi, Guangping; Yao, Xiangdong; Hongqiang, Qiao; Song, Miao; Gao, Ping; Huang, Chung‐Ju; Li, Jie; Da, Qihong

doi:10.1080/10807039.2022.2143318

Cited by 5 publications

(2 citation statements)

References 62 publications

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“…This has put the basin under enormous pressure and has seriously threatened the ecological recovery of the basin [21]. Climate determines the distribution of heat and moisture at the basin scale, which in turn affects landscape pattern changes and the spatial heterogeneity of ecological risks [22]. Highaltitude and high-slope areas are generally less disturbed by human activities, resulting in lower landscape fragmentation levels [23].…”

Section: Introductionmentioning

confidence: 99%

Spatio-Temporal Assessment of Landscape Ecological Risk and Associated Drivers: A Case Study of the Yellow River Basin in Inner Mongolia

Zhang

et al. 2023

Land

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The Yellow River Basin in Inner Mongolia (YRBIM) has witnessed major changes in land use/land cover (LULC), which have had an impact on the basin’s ecosystem, in the context of fast economic development and urbanization. This study set out to investigate the ecological risk and key driving forces in the basin as LULC evolves. In order to evaluate the ecological risk of the basin and use a geographic detector model to understand the causes of its spatial heterogeneity, we built a landscape ecological risk index (ERI) model based on changes in LULC from 1990 to 2020. The findings indicate that between 1990 and 2020, LULC modifications led to the transfer of several land types to a small number of land types, all of which have since changed into other land types. With high risk areas primarily located in the Hobq Desert, the Hetao irrigation area, and some portions of the Mu Us Sandy Land, the ecological risk level in the basin is gradually decreasing. Human activities are the main cause of the regional variation of ecological risk in the basin, with topography and climate coming in second and third. The Yellow River Basin’s ecological danger and environmental quality have only received a limited amount of analysis to date. This study is a crucial resource for the development of civilization and ecological restoration in the region.

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Section: Introductionmentioning

confidence: 99%

Spatio-Temporal Assessment of Landscape Ecological Risk and Associated Drivers: A Case Study of the Yellow River Basin in Inner Mongolia

Zhang

et al. 2023

Land

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“…At the same time, the academic research on ecological risk has been quite abundant, including the heavy metal ecological risk in sediments [8], microbial ecological risk in water [9], carbon emission risk [10], ecological risk after land consolidation [11] and urban and river basin ecological risk [12]. Generally speaking, from the research object, the ecological risk assessment is mainly carried out around river basins [13], cities and industrial and mining areas [14], as well as in ecologically sensitive and fragile wetlands [15,16], arid areas [17], alpine areas [18] and karst areas [19]. Judging from the evaluation unit, most of them take the administrative region as the evaluation unit, which separates the original natural geographical relationship of the surface, resulting in a relative lack of consideration of spatial heterogeneity.…”

Section: Introductionmentioning

confidence: 99%

Research on Land Use Pattern and Ecological Risk of Lanzhou–Xining Urban Agglomeration from the Perspective of Terrain Gradient

Wang

Shi

et al. 2023

Land

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At the intersection of the Qinghai–Tibet Plateau and Loess Plateau, topographic factors often profoundly affect the evolution of the regional land use pattern and ecological risk. This paper takes the Lanzhou–Xining urban agglomeration as the research area, divides the topographic gradient based on the topographic index, analyzes the characteristics of the land use pattern using the land use transfer matrix model, dynamic attitude and state degree model, and analyzes the influence of topographic factors on the land use pattern using the distribution model. At the same time, an ecological risk evaluation index system is constructed, the spatial principal component method is used to evaluate the ecological risk, and the influence of topography on the regional ecological risk is discussed. The results show that from 1990 to 2020, the area of construction land in the study area increased by 1045.807 km2 and the area of ecological land increased by 587.41 km2, with the most significant changes occurring in the attitude and state of construction land and unused land. It is found that cultivated land, water area and construction land are dominant in low terrain, while woodland, grassland and unused land are mainly distributed in middle and high terrain. During the study period, the ecological risk in the midwest and southeast of the Lanzhou–Xining urban agglomeration decreased, while the ecological risk in the northeast increased first and then decreased, although generally there was an increasing trend. Moran’s I varied from 0.942 to 0.955 from 1990 to 2020, indicating that the ecological risk index in the study area was highly positively correlated in space, while the spatial aggregation effect of the ecological risk was obvious. Low and moderately low risk areas are mainly distributed in high terrain, while high and moderately high risk areas are dominant in low terrain. The research results of this paper can make a lot of sense for ecological protection, land resource utilization and sustainable development of the Lanzhou–Xining urban agglomeration.

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Ecological risk assessment and multi-scenario dynamic prediction of the arid oasis cities in northwest China from 1990 to 2030

Gan

Halik

Lei

et al. 2023

Stoch Environ Res Risk Assess

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Dynamic prediction and impact factors analysis of ecological risk in Chinese farming-pastoral ecotone

Cited by 5 publications

References 62 publications

Spatio-Temporal Assessment of Landscape Ecological Risk and Associated Drivers: A Case Study of the Yellow River Basin in Inner Mongolia

Spatio-Temporal Assessment of Landscape Ecological Risk and Associated Drivers: A Case Study of the Yellow River Basin in Inner Mongolia

Research on Land Use Pattern and Ecological Risk of Lanzhou–Xining Urban Agglomeration from the Perspective of Terrain Gradient

Ecological risk assessment and multi-scenario dynamic prediction of the arid oasis cities in northwest China from 1990 to 2030

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