Spatial Quantification of Cropland Soil Erosion Dynamics in the Yunnan Plateau Based on Sampling Survey and Multi-Source LUCC Data
文献类型：期刊论文
| 作者 | Chen, Guokun1,2; Zhao, Jingjing1; Duan, Xingwu3,4,5; Tang, Bohui1,2,6; Zuo, Lijun7,8; Wang, Xiao7,9; Guo, Qiankun10,11 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2024-03-01 |
| 卷号 | 16期号:6页码:25 |
| 关键词 | sampling survey CSLE land use change non-homologous data voting cropland erosion rate |
| DOI | 10.3390/rs16060977 |
| 通讯作者 | Zhao, Jingjing(20200014@kust.edu.cn) |
| 英文摘要 | The mapping and dynamic monitoring of large-scale cropland erosion rates are critical for agricultural planning but extremely challenging. In this study, using field investigation data collected from 20,155 land parcels in 2817 sample units in the National Soil Erosion Survey, as well as land use change data for two decades from the National Land Use/Cover Database of China (NLUD-C), we proposed a new point-to-surface approach to quantitatively assess long-term cropland erosion based on the CSLE model and non-homologous data voting. The results show that cropland in Yunnan suffers from serious problems, with an unsustainable mean soil erosion rate of 40.47 t/(ha center dot a) and an erosion ratio of 70.11%, which are significantly higher than those of other land types. Engineering control measures (ECMS) have a profound impact on reducing soil erosion; the soil erosion rates of cropland with and without ECMs differ more than five-fold. Over the past two decades, the cropland area in Yunnan has continued to decrease, with a net reduction of 7461.83 km2 and a ratio of -10.55%, causing a corresponding 0.32 x 108 t (12.12%) reduction in cropland soil loss. We also quantified the impact of different LUCC scenarios on cropland erosion, and extraordinarily high variability was found in soil loss in different basins and periods. Conversion from cropland to forest contributes the most to cropland erosion reduction, while conversion from grassland to cropland contributes 56.18% of the increase in soil erosion. Considering the current speed of cropland regulation, it is the sharp reduction in land area that leads to cropland erosion reduction rather than treatments. The choice between the Grain for Green Policy and Cropland Protecting Strategy in mountainous areas should be made carefully, with understanding and collaboration between different roles. |
| WOS关键词 | WATER EROSION ; LAND-USE ; CHINA ; PREDICTION ; LIMITATIONS ; PROVINCE ; RUNOFF ; 1980S ; END |
| 资助项目 | Basic Research Project of Yunnan Province |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:001192821900001 |
| 资助机构 | Basic Research Project of Yunnan Province |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/204013]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhao, Jingjing |
| 作者单位 | 1.Kunming Univ Sci & Technol, Fac Land Resource Engn, Kunming 650093, Peoples R China 2.Yunnan Prov Dept Educ, Key Lab Plateau Remote Sensing, Kunming 650093, Peoples R China 3.Yunnan Univ, Inst Int Rivers & Ecosecur, Kunming 650091, Peoples R China 4.Yunnan Univ, Yunnan Key Lab Soil Eros Prevent & Green Dev, Kunming 650091, Peoples R China 5.Yunnan Univ, Yuanjiang Dry Hot Valley Water & Soil Conservat Ob, Kunming 650091, Peoples R China 6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 7.Chinese Acad Sci, Aerosp Informat Res Inst, Beijing 100101, Peoples R China 8.Int Res Ctr Big Data Sustainable Dev Goals, Beijing 100094, Peoples R China 9.Chinese Acad Sci, Natl Engn Res Ctr Geomat NCG, Beijing 100101, Peoples R China 10.China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing 100048, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Guokun,Zhao, Jingjing,Duan, Xingwu,et al. Spatial Quantification of Cropland Soil Erosion Dynamics in the Yunnan Plateau Based on Sampling Survey and Multi-Source LUCC Data[J]. REMOTE SENSING,2024,16(6):25. |
| APA | Chen, Guokun.,Zhao, Jingjing.,Duan, Xingwu.,Tang, Bohui.,Zuo, Lijun.,...&Guo, Qiankun.(2024).Spatial Quantification of Cropland Soil Erosion Dynamics in the Yunnan Plateau Based on Sampling Survey and Multi-Source LUCC Data.REMOTE SENSING,16(6),25. |
| MLA | Chen, Guokun,et al."Spatial Quantification of Cropland Soil Erosion Dynamics in the Yunnan Plateau Based on Sampling Survey and Multi-Source LUCC Data".REMOTE SENSING 16.6(2024):25. |
入库方式： OAI收割
来源：地理科学与资源研究所
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