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Effects of Soil Aggregate Stability on Soil Organic Carbon and Nitrogen under Land Use Change in an Erodible Region in Southwest China

Author

Listed:
  • Man Liu

    (Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing 100083, China)

  • Guilin Han

    (Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing 100083, China)

  • Qian Zhang

    (School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, China)

Abstract

Soil aggregate stability can indicate soil quality, and affects soil organic carbon (SOC) and soil organic nitrogen (SON) sequestration. However, for erodible soils, the effects of soil aggregate stability on SOC and SON under land use change are not well known. In this study, soil aggregate distribution, SOC and SON content, soil aggregate stability, and soil erodibility were determined in the soils at different depths along the stages following agricultural abandonment, including cropland, abandoned cropland, and native vegetation land in an erodible region of Southwest China. Soil aggregation, soil aggregate stability, and SOC and SON content in the 0–20 cm depth soils increased after agricultural abandonment, but soil texture and soil erodibility were not affected by land use change. Soil erodibility remained in a low level when SOC contents were over 20 g·kg −1 , and it significantly increased with the loss of soil organic matter (SOM). The SOC and SON contents increased with soil aggregate stability. This study suggests that rapidly recovered soil aggregate stability after agricultural abandonment promotes SOM sequestration, whereas sufficient SOM can effectively maintain soil quality in karst ecological restoration.

Suggested Citation

  • Man Liu & Guilin Han & Qian Zhang, 2019. "Effects of Soil Aggregate Stability on Soil Organic Carbon and Nitrogen under Land Use Change in an Erodible Region in Southwest China," IJERPH, MDPI, vol. 16(20), pages 1-14, October.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:20:p:3809-:d:274734
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    References listed on IDEAS

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    1. Qian Zhang & Guilin Han & Man Liu & Lingqing Wang, 2019. "Geochemical Characteristics of Rare Earth Elements in Soils from Puding Karst Critical Zone Observatory, Southwest China," Sustainability, MDPI, vol. 11(18), pages 1-14, September.
    2. Wang, Bing & Gao, Peng & Niu, Xiang & Sun, Jianni, 2017. "Policy-driven China’s Grain to Green Program: Implications for ecosystem services," Ecosystem Services, Elsevier, vol. 27(PA), pages 38-47.
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    Cited by:

    1. Sriroop Chaudhuri & Mimi Roy & Louis M. McDonald & Yves Emendack, 2023. "Land Degradation–Desertification in Relation to Farming Practices in India: An Overview of Current Practices and Agro-Policy Perspectives," Sustainability, MDPI, vol. 15(8), pages 1-27, April.
    2. Retno Meitasari & Eko Hanudin & Benito Heru Purwanto, . "Comparison of two soil quality assessment models under different land uses and topographical units on the southwest slope of Mount Merapi," Soil and Water Research, Czech Academy of Agricultural Sciences, vol. 0.
    3. Xiaoqin Tian & Zhuo Li & Longchang Wang & Yifan Wang & Biao Li & Meichun Duan & Bangyan Liu, 2019. "Effects of Biochar Combined with Nitrogen Fertilizer Reduction on Rapeseed Yield and Soil Aggregate Stability in Upland of Purple Soils," IJERPH, MDPI, vol. 17(1), pages 1-17, December.
    4. Ya Liu & Ziqi Liu & Kangning Xiong & Yuan Li & Xiaoxi Lyu & Lulu Cai, 2023. "Carbon Nitrogen Isotope Coupling of Soils and Seasonal Variation Characteristics in a Small Karst Watershed in Southern China," Land, MDPI, vol. 12(2), pages 1-14, February.
    5. Ying Li & Zhanming Ma & Yutao Liu & Zilong Cui & Qiuyu Mo & Can Zhang & Haiyan Sheng & Wen Wang & Yongkun Zhang, 2023. "Variation in Soil Aggregate Stability Due to Land Use Changes from Alpine Grassland in a High-Altitude Watershed," Land, MDPI, vol. 12(2), pages 1-16, February.
    6. Carla L. Abán & Giovanni Larama & Antonella Ducci & Jorgelina Huidobro & Michel Abanto & Silvina Vargas-Gil & Carolina Pérez-Brandan, 2022. "Soil Properties and Bacterial Communities Associated with the Rhizosphere of the Common Bean after Using Brachiaria brizantha as a Service Crop: A 10-Year Field Experiment," Sustainability, MDPI, vol. 15(1), pages 1-23, December.
    7. Man Liu & Guilin Han & Xiaoqiang Li & Shitong Zhang & Wenxiang Zhou & Qian Zhang, 2020. "Effects of Soil Properties on K Factor in the Granite and Limestone Regions of China," IJERPH, MDPI, vol. 17(3), pages 1-13, January.
    8. Mingyong Zhu & Wenming He & Youcun Liu & Zhiyun Chen & Zhicheng Dong & Changbai Zhu & Yankui Chen & Yongzhu Xiong, 2022. "Characteristics of Soil Erodibility in the Yinna Mountainous Area, Eastern Guangdong Province, China," IJERPH, MDPI, vol. 19(23), pages 1-22, November.
    9. Ruiyin Han & Zhifang Xu, 2021. "Geochemical Behaviors of Rare Earth Elements (REEs) in Karst Soils under Different Land-Use Types: A Case in Yinjiang Karst Catchment, Southwest China," IJERPH, MDPI, vol. 18(2), pages 1-18, January.
    10. Qingjian Zhao & Zuomin Wen & Shulin Chen & Sheng Ding & Minxin Zhang, 2019. "Quantifying Land Use/Land Cover and Landscape Pattern Changes and Impacts on Ecosystem Services," IJERPH, MDPI, vol. 17(1), pages 1-21, December.

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