LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 3 of total 3

Search options

  1. Article ; Online: Assessment of Soil Heavy Metal Pollution and Health Risks in Different Functional Areas on the Northern Slope of the Eastern Tianshan Mountains in Xinjiang, NW China

    Halidan Asaiduli / Abdugheni Abliz / Abudukeyimu Abulizi / Xiaoli Sun / Panqing Ye

    International Journal of Environmental Research and Public Health, Vol 20, Iss 4843, p

    2023  Volume 4843

    Abstract: In typical semi-arid areas, the timely and effective monitoring and evaluation of soil heavy metal pollution are of critical importance to prevent soil deterioration and achieve the sustainable use of soil resources. To further understand the degree of ... ...

    Abstract In typical semi-arid areas, the timely and effective monitoring and evaluation of soil heavy metal pollution are of critical importance to prevent soil deterioration and achieve the sustainable use of soil resources. To further understand the degree of soil heavy metal pollution in different functional areas, we studied the soil heavy metal pollution on the northern slope of the eastern Tianshan Mountains in Xinjiang. We collected 104 surface soil samples from typical commercial (A), industrial (B), and agricultural (C) areas with different land-use patterns. The contents of Zn, Cu, Cr, Pb, As, and Hg in the soil of different functional areas were evaluated using the geo-accumulation index, the single-factor pollution index, and potential ecological risk. The results showed that the contents of Pb, As, and Hg in soils of different functional areas exceeded 4.47, 8.03, and 1.5 times the background values of Xinjiang soil, respectively. The average contents of Zn, Cu, and Cr were lower than the background values of Xinjiang soil. Except for As in different functional areas, the contents of the other elements in the different functional areas reached the level of soil environmental quality standards in China (GB15618-2018). The geo-accumulation index of heavy metals in different functional areas was in the order of Area C > Area A > Area B, indicating that Area C was the most polluted. The results of the single-factor pollution index showed that the pollution levels of Pb, As, and Hg were higher, and the pollution levels of Cr, Cu, and Zn were lower. The results of the potential ecological risk index showed that the northwest of Area A was higher, the southeast of Area B was more polluted, and the central and eastern parts of Area C were more polluted. From the perspective of spatial distribution, the spatial distribution characteristics of Zn and Cr elements in different functional areas are consistent, but the spatial distribution characteristics of Cu, Pb, As, and Hg in different functional areas are quite ...
    Keywords different functional areas ; soil heavy metal ; spatial distribution ; pollution assessment ; source analysis ; Medicine ; R
    Subject code 910
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  2. Article ; Online: Evolution of environmental quality and its response to human disturbances of the urban agglomeration in the northern slope of the Tianshan Mountains

    Tingting Yu / Abudukeyimu Abulizi / Zhonglin Xu / Jiao Jiang / Adila Akbar / Bin Ou / Fujin Xu

    Ecological Indicators, Vol 153, Iss , Pp 110481- (2023)

    2023  

    Abstract: Increased human disturbances have disturbed the global ecosystem at various scales. A growing need exists for effective techniques that can be used to quantify human disturbances and detect the resulting spatial and temporal variations in ecological ... ...

    Abstract Increased human disturbances have disturbed the global ecosystem at various scales. A growing need exists for effective techniques that can be used to quantify human disturbances and detect the resulting spatial and temporal variations in ecological status. Remote sensing can be used as an effective means to detect changes in environmental quality. Consequently, this study employed multi-source remote sensing data and principal component analysis (PCA) to create a remote sensing ecological index (RSEI) and a human footprint index used to clarify the human disturbances intensity (HDI). Then, unary linear regression was used to evaluate the change trends of HDI and the RSEI; spatial autocorrelation analysis and correlation analysis were used to reveal the evolution characteristics of environmental quality and its response to human disturbances of the Urban Agglomeration in the Northern Slope of the Tianshan Mountains (UANST) from 2000 to 2020. The results show the following: (1) An RSEI is applicable to both medium- and large-scale regions and can be used to effectively quantify and reveal the environmental quality of the UANST. (2) From 2000 to 2020, the annual average RSEI of UANST was 0.29, with the environmental quality graded as poor for more than 40% of the region. Although high proportions of the UANST were ranked as having poor and fair environmental quality, the overall trend was toward increasing the areas with good and excellent grades. The spatial characteristics of environmental quality showed that the environment was generally better in the central area and poorer in the northern and southern areas. (3) From 2000 to 2020, the HDI in the majority of the UANST was low but showed an increase over time and gradually attenuated from the city center to the edge of each county. (4) A significant positive correlation was found between environmental quality and human disturbances in the cropland area in the central part of the UANST, while a significant negative correlation was found in the surrounding urban ...
    Keywords Environmental quality ; Remote sensing ecological index ; Human disturbances intensity ; Urban agglomeration ; Ecology ; QH540-549.5
    Subject code 333
    Language English
    Publishing date 2023-09-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Article ; Online: Construction of Landscape Ecological Security Pattern in the Zhundong Region, Xinjiang, NW China

    Jiao Jiang / Abudukeyimu Abulizi / Abdugheni Abliz / Abudoukeremujiang Zayiti / Adila Akbar / Bin Ou

    International Journal of Environmental Research and Public Health, Vol 19, Iss 6301, p

    2022  Volume 6301

    Abstract: The Xinjiang Zhundong Economic and Technological Development Zone, which contains the largest coalfield in China, is a mega energy base for west–east gas transmission and outbound electricity transmission in China; however, resource exploitation and the ... ...

    Abstract The Xinjiang Zhundong Economic and Technological Development Zone, which contains the largest coalfield in China, is a mega energy base for west–east gas transmission and outbound electricity transmission in China; however, resource exploitation and the region’s arid climate have led to the region’s ecological environment being increasingly vulnerable. The morphological spatial pattern analysis (MSPA) method and landscape connectivity were used in this study to identify the ecological sources and extract the ecological corridors and ecological nodes based on the minimum cumulative resistance (MCR) model, used to construct the landscape ecological security pattern in the Zhundong region from 2016 to 2021. The results show that (a) from 2016 to 2021, the area of ecological sources increased by 117.86 ha and the distribution density of which decreased from the southern-central region to the northern and northwestern regions. (b) From 2016 to 2021, the number of ecological corridors and ecological nodes decreased, and the ecological corridors with dense distributions in the south gradually moved to the north and west. The length of the ecological corridors in the south gradually became longer, and the number of ecological corridors connecting the east and west in the north increased. (c) The landscape ecological security pattern of the Zhundong region was constructed by “a network and multiple points” using the model of ecological sources–ecological corridors–ecological nodes. The findings of this study provide a scientific foundation for the construction of an ecological security development plan and the ecologically protective development of coal resources in Zhundong.
    Keywords Zhundong region ; MSPA method ; MCR model ; landscape ecological security pattern ; Medicine ; R
    Subject code 910
    Language English
    Publishing date 2022-05-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top