Changes in Cultivated Land Area and Associated Soil and SOC Losses in Northeastern China
The Role of Land Use Policies
Bibliographic Data
| ID | 15475007 |
|---|---|
| Authors | Haiyan Fang (0000-0002-2768-521X, Chinese Academy of Sciences, corresponding author) |
| Year | 2021 |
| Volume | 18 |
| Issue | 21 |
| Pages | 11314-11314 |
| Publication date | 2021-10-28 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Environmental Research and Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph182111314 |
| PMID | 34769829 |
| OpenAlex | W3208362261 |
| Language | EN |
| Citations received | 4 |
| References cited | 37 |
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
Agricultural land · Agroforestry · China · Erosion · Geography · Hydrology (agriculture · Land development · Land management · Land use · Land use, land-use change and forestry · Population · Soil carbon · Soil loss · Soil water · Conservation, Biodiversity, and Resource Management · Demography · Environmental Science · Rangeland Management and Livestock Ecology · Soil erosion and sediment transport · Ecology · Geology · Soil Science
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| Unique citing works | 4 |
|---|---|
| Citations per year | 1 |
| Citation span | 2022 - 2025 (4) |
| Citation velocity | recent |
| Highly cited | No |
| Citation types | Neutral: 4 |