IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v18y2021i21p11314-d666599.html
   My bibliography  Save this article

Changes in Cultivated Land Area and Associated Soil and SOC Losses in Northeastern China: The Role of Land Use Policies

Author

Listed:
  • Haiyan Fang

    (Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China)

Abstract

Land use policy is the driving factor influencing land use; however, little research has been conducted to identify the role of agricultural policy in influencing land cultivation and associated soil and soil organic carbon (SOC) losses. The aims of this study were to explore temporal changes in cultivated land, soil erosion, and SOC loss and to identify the role of land use policy. The present study was conducted using the revised universal soil loss equation by integrating remote sensing images from 1980, 1990, 2000, and 2017. The study found that cultivated land areas increased from 275.11 thousand km 2 in 1980, to 300.03 thousand km 2 in 2000, and to 344.16 thousand km 2 in 2010, and then decreased by 326.94 thousand km 2 . The mean soil loss rates changed from 590.66 t·km −2 ·yr −1 in 1980 to 634.25 t·km −2 ·yr −1 in 2010, and then decreased to 495.66 t·km −2 ·yr −1 in 2017. Soil loss rate increased with increasing slope gradient. The changes in SOC loss rates demonstrated the same pattern as that of soil loss, with the largest loss rate of 728.27 kg·km −2 ·yr −1 . These changes can be explained by changed land use policy and population growth. In future land use management, reasonable implementation of soil conservation measures should be undertaken to reduce soil and SOC losses in the black soil region of northeastern China.

Suggested Citation

  • Haiyan Fang, 2021. "Changes in Cultivated Land Area and Associated Soil and SOC Losses in Northeastern China: The Role of Land Use Policies," IJERPH, MDPI, vol. 18(21), pages 1-13, October.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:21:p:11314-:d:666599
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/18/21/11314/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1660-4601/18/21/11314/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Haiyan Fang & Zemeng Fan, 2020. "Assessment of Soil Erosion at Multiple Spatial Scales Following Land Use Changes in 1980–2017 in the Black Soil Region, (NE) China," IJERPH, MDPI, vol. 17(20), pages 1-19, October.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Chen Qu & Wen Li & Jia Xu & Song Shi, 2023. "Blackland Conservation and Utilization, Carbon Storage and Ecological Risk in Green Space: A Case Study from Heilongjiang Province in China," IJERPH, MDPI, vol. 20(4), pages 1-21, February.
    2. Nan Shen & Zhanli Wang & Fengbao Zhang & Chunhong Zhou, 2023. "Response of Soil Detachment Rate to Sediment Load and Model Examination: A Key Process Simulation of Rill Erosion on Steep Loessial Hillslopes," IJERPH, MDPI, vol. 20(4), pages 1-12, February.
    3. Siyu Sheng & Bohan Yang & Bing Kuang, 2022. "Impact of Cereal Production Displacement from Urban Expansion on Ecosystem Service Values in China: Based on Three Cropland Supplement Strategies," IJERPH, MDPI, vol. 19(8), pages 1-19, April.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Qian Zuo & Yong Zhou & Jingyi Liu, 2022. "Construction and Optimization Strategy of an Ecological Network in Mountainous Areas: A Case Study in Southwestern Hubei Province, China," IJERPH, MDPI, vol. 19(15), pages 1-27, August.
    2. Nan Jiang & Fojun Yao & Tao Liu & Zhuo Chen & Chen Hu & Xinxia Geng, 2023. "Estimating the Soil Erosion Response to Land-Use Change Using GIS-Based RUSLE and Remote Sensing: A Case Study of Heilongjiang Province, China," Sustainability, MDPI, vol. 15(10), pages 1-19, May.
    3. Zhijia Gu & Shaomin Cao & Ao Li & Qiang Yi & Shuang Li & Panying Li, 2023. "Comparison of Sampling and Grid Methods for Regional Soil Erosion Assessment," Land, MDPI, vol. 12(9), pages 1-17, August.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jijerp:v:18:y:2021:i:21:p:11314-:d:666599. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.