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Effect of Topographic Factors on Ecological Environment Quality in the Red Soil Region of Southern China: A Case from Changting County

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  • Junming Chen

    (College of Geographical Sciences, Fujian Normal University, Fuzhou 350117, China)

  • Guangfa Lin

    (Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou 350117, China)

  • Zhibiao Chen

    (Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou 350117, China)

Abstract

The evaluation of ecological environment quality (EEQ) is an important method to determine regional eco-environment status, and topography, as one of the key factors affecting eco-environment, has an impact on the EEQ by influencing hydrothermal conditions. However, research on the effect of topography on the EEQ still needs to be strengthened, especially in the red soil region of southern China. Therefore, based on the evaluation of the EEQ for Changting County using the remote sensing ecological index (RSEI) combined with Landsat images from 2000 to 2019, the effects of topography on the EEQ were analyzed further. The main findings indicated, firstly, that the average values of topographic factors increased as the EEQ grade raised; secondly, the distribution of the EEQ gradually moved to the lower terrain factor categories as the EEQ grade declined for each study period on the whole; thirdly, the coupling effect of any two topographic factors on the EEQ was greater than the effect of a single topographic factor, and the coupling effect of the aspect with the elevation and topographic position index (TPI) on the EEQ was the most prominent. The main findings of the research can enhance the understanding of the variability of the EEQ and the effects of topography on the EEQ.

Suggested Citation

  • Junming Chen & Guangfa Lin & Zhibiao Chen, 2025. "Effect of Topographic Factors on Ecological Environment Quality in the Red Soil Region of Southern China: A Case from Changting County," Sustainability, MDPI, vol. 17(4), pages 1-16, February.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:4:p:1501-:d:1589113
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    References listed on IDEAS

    as
    1. Jian Xu & Liangjun Zheng & Ruiqu Ma & Han Tian, 2023. "Correlation between Distribution of Rural Settlements and Topography in Plateau-Mountain Area: A Study of Yunnan Province, China," Sustainability, MDPI, vol. 15(4), pages 1-15, February.
    2. Xintian Gan & Xiaochu Du & Chengjun Duan & Linhan Peng, 2024. "Evaluation of Ecological Environment Quality and Analysis of Influencing Factors in Wuhan City Based on RSEI," Sustainability, MDPI, vol. 16(13), pages 1-20, July.
    3. Yuxin Cen & Bin Zhang & Jun Luo & Qingchun Deng & Hui Liu & Lei Wang, 2022. "Influence of Topographic Factors on the Characteristics of Gully Systems in Mountainous Areas of Ningnan Dry-Hot Valley, SW China," IJERPH, MDPI, vol. 19(14), pages 1-17, July.
    4. Yizhuo Liu & Tinggang Zhou & Wenping Yu, 2024. "Analysis of Changes in Ecological Environment Quality and Influencing Factors in Chongqing Based on a Remote-Sensing Ecological Index Mode," Land, MDPI, vol. 13(2), pages 1-17, February.
    5. Qiulin Xiong & Qingwen Hong & Wenbo Chen, 2024. "Temporal and Spatial Response of Ecological Environmental Quality to Land Use Transfer in Nanling Mountain Region, China Based on RSEI: A Case Study of Longnan City," Land, MDPI, vol. 13(5), pages 1-23, May.
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