Spatial Distribution and Simulation of Cropland Abandonment in Wushan County, Chongqing, China
文献类型：期刊论文
| 作者 | Guo, Yuchen; Song, Wei
|
| 刊名 | SUSTAINABILITY
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 11期号:5页码:25 |
| 关键词 | cropland abandonment mountain area CART algorithm scenarios simulation Wushan County China |
| ISSN号 | 2071-1050 |
| DOI | 10.3390/su11051367 |
| 通讯作者 | Song, Wei(songw@igsnrr.ac.cn) |
| 英文摘要 | Cropland abandonment (CRA) is an extreme case of cropland marginalization. With the continuous development of global industrialization and urbanization, the phenomenon of CRA gradually spreads from developed countries such as eastern and western European countries and the United States to developing countries such as China, especially in regions with poor geographical conditions such as mountainous areas. However, research on CRA in developing countries is sparse, and adequate identification methods and spatial distribution information are lacking in China, impeding the comprehensive understanding of the status quo of CRA as well as the formulation of related policies and measures. Therefore, taking Wushan County in Chongqing as an example, we developed a CRA extraction method to identify cropland. Landsat 8 OLI_TIRS remote sensing images were adopted in the extraction. Subsequently, Google Earth images were used to verify the extraction results, and the extraction accuracy of abandoned cropland plaques reached 89.33%. The CRA rate in Wushan between 2011 and 2016 was 28.71%, and abandoned cropland was highly scattered across the region. In areas above 800 m and with slopes of more than 15 degrees, large areas were abandoned. However, an increasing irrigation radius resulted in higher labor costs and, ultimately, larger abandoned areas. Using the Conversion of Land Use and its Effects-Small (CLUE-S) model, the CRA status under different scenarios was simulated, and under the scenario of economic development, the CRA rate in the next 20 years was as low as 28.84%, while under the scenario of natural growth, the rate reached 33.54%. When the model used the scenario of ecological protection, the cropland area in Wushan County decreased significantly, and the CRA rate reached 42.11%. |
| WOS关键词 | AGRICULTURAL LAND ABANDONMENT ; FARMLAND ABANDONMENT ; CULTIVATED LAND ; MOUNTAINOUS AREAS ; MARGINAL LAND ; COVER CHANGE ; SOIL ; CONVERSION ; DRIVERS ; IMPACTS |
| 资助项目 | National Natural Science Foundation of China[41671177] ; National Natural Science Foundation of China[41501192] ; National Key Research and Development Program[2016YFA0602402] ; National Key Research Program of China (973 Program)[2015CB452702] ; Key Laboratory of Earth Observation and Geospatial Information Science of NASG[201807] |
| WOS研究方向 | Science & Technology - Other Topics ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000462661000151 |
| 出版者 | MDPI |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program ; National Key Research Program of China (973 Program) ; Key Laboratory of Earth Observation and Geospatial Information Science of NASG |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/48621]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Song, Wei |
| 作者单位 | Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Yuchen,Song, Wei. Spatial Distribution and Simulation of Cropland Abandonment in Wushan County, Chongqing, China[J]. SUSTAINABILITY,2019,11(5):25. |
| APA | Guo, Yuchen,&Song, Wei.(2019).Spatial Distribution and Simulation of Cropland Abandonment in Wushan County, Chongqing, China.SUSTAINABILITY,11(5),25. |
| MLA | Guo, Yuchen,et al."Spatial Distribution and Simulation of Cropland Abandonment in Wushan County, Chongqing, China".SUSTAINABILITY 11.5(2019):25. |
入库方式： OAI收割
来源：地理科学与资源研究所
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