[1]Liang Yanrong,Zhang Yan,Li Kunheng,et al.Investigation on the Effects of Gully Control in China's Black Soil Region over a 10-Year Scale Based on High-Resolution Remote Sensing[J].Research of Soil and Water Conservation,2024,31(06):67-73.[doi:10.13869/j.cnki.rswc.2024.06.025]
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
31
Number of periods:
2024 06
Page number:
67-73
Column:
Public date:
2024-12-10
- Title:
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Investigation on the Effects of Gully Control in China's Black Soil Region over a 10-Year Scale Based on High-Resolution Remote Sensing
- Author(s):
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Liang Yanrong, Zhang Yan, Li Kunheng, Zhang Junbin, Yang Runze, Chen Chang
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(School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China)
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- Keywords:
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black soil; sampling survey; high-resolution remote sensing; gully erosion; gully treatment
- CLC:
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S157
- DOI:
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10.13869/j.cnki.rswc.2024.06.025
- Abstract:
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[Objective]This study aims to investigate the distribution of gully treatment measures, to analyze post-treatment gully evolution, and to assess the effectiveness of gully rehabilitation in black soil areas at the decadal scale. [Methods]The Songnen typical black soil region, the largest black soil area in China, was taken as the study area. A systematic sampling method combined with the interpretation of high-resolution remote sensing imagery from three different periods was employed to evaluate the effect of gully erosion control and the recurrence of gullies on cultivated land from 2010 to 2018. [Results]In 998 sampled units in the Songnen typical black soil region, 73 units which represented 10.11% of all cropland units received gully control treatments. An overwhelming 93.2% of these treated units were situated within black soil belt areas. From 2010 to 2018, around 30% of the sampled units demonstrated an increase in gully density despite the control measures, particularly where erosion intensity was already high. The soil conservation measures had been substantially effective in stemming gully progression, with approximately 80% of previously formed gullies either remaining stable or showing signs of regression. However, about 8% of gullies continued to expand, and 12% of gullies were emerged after establishment of conservation measures. [Conclusion]The soil conservation measures of cultivated land in the black soil region of northeast China have been widely distributed after 2010 and can effectively control the development of gully, but this indicates that there is requirements for improvement in gully control strategies to bolster the long-term success of these measures and guarantee the sustainable utilization of black soil resources.