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Effects of Landscape Positions and Landscape Types on Soil Properties and Chlorophyll Content of Citrus in a Sloping Orchard in the Three Gorges Reservoir Area, China

Author

Listed:
  • Siyue Sun

    (College of the Arts, Guangxi University, Nanning 530004, China)

  • Guolin Zhang

    (College of Architecture and Landscape, Peking University, Beijing 100080, China)

  • Tieguang He

    (Agricultural Resources and Environment Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China)

  • Shufang Song

    (School of Information and Statistics, Guangxi University of Finance and Economics, Nanning 530003, China)

  • Xingbiao Chu

    (College of the Arts, Guangxi University, Nanning 530004, China)

Abstract

In recent years, soil degradation and decreasing orchard productivity in the sloping orchards of the Three Gorges Reservoir Area of China have received considerable attention both inside and outside the country. More studies pay attention to the effects of topography on soil property changes, but less research is conducted from the landscape. Therefore, understanding the effects of landscape positions and landscape types on soil properties and chlorophyll content of citrus in a sloping orchard is of great significance in this area. Our results showed that landscape positions and types had a significant effect on the soil properties and chlorophyll content of citrus. The lowest soil nutrient content was detected in the upper slope position and sloping land, while the highest exists at the footslope and terraces. The chlorophyll content of citrus in the middle and upper landscape position was significantly higher than the footslope. The redundancy analysis showed that the first two ordination axes together accounted for 81.32% of the total variation, which could be explained by the changes of soil total nitrogen, total phosphorus, total potassium, available nitrogen, available potassium, organic matter, pH, and chlorophyll content of the citrus. Overall, this study indicates the significant influence of landscape positions and types on soil properties and chlorophyll content of citrus. Further, this study provides a reference for the determination of targeted land management measures and orchard landscape design so that the soil quality and orchard yield can be improved, and finally, the sustainable development of agriculture and ecology can be realized.

Suggested Citation

  • Siyue Sun & Guolin Zhang & Tieguang He & Shufang Song & Xingbiao Chu, 2021. "Effects of Landscape Positions and Landscape Types on Soil Properties and Chlorophyll Content of Citrus in a Sloping Orchard in the Three Gorges Reservoir Area, China," Sustainability, MDPI, vol. 13(8), pages 1-14, April.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:8:p:4288-:d:534815
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    References listed on IDEAS

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    1. Xinxin Guo & Qiang Fu & Yanhong Hang & He Lu & Fengjie Gao & Jingbo Si, 2020. "Spatial Variability of Soil Moisture in Relation to Land Use Types and Topographic Features on Hillslopes in the Black Soil (Mollisols) Area of Northeast China," Sustainability, MDPI, vol. 12(9), pages 1-21, April.
    2. Xiaowen Ding & Lin Liu, 2019. "Long-Term Effects of Anthropogenic Factors on Nonpoint Source Pollution in the Upper Reaches of the Yangtze River," Sustainability, MDPI, vol. 11(8), pages 1-20, April.
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    Cited by:

    1. Zuliang Lu & Xiankui Wu & Fei Cai & Fei Huang, 2021. "An Empirical Study for Real Options of Water Management in the Three Gorges Reservoir Area," Sustainability, MDPI, vol. 13(20), pages 1-16, October.
    2. D. Mandal & S. Patra & N. K. Sharma & N. M. Alam & C. Jana & R. Lal, 2023. "Impacts of Soil Erosion on Soil Quality and Agricultural Sustainability in the North-Western Himalayan Region of India," Sustainability, MDPI, vol. 15(6), pages 1-14, March.

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