Changes in Cultivated Land Loss and Landscape Fragmentation in China from 2000 to 2020
文献类型：期刊论文
| 作者 | Wang, Xue |
| 刊名 | LAND
 |
| 出版日期 | 2022-05-01 |
| 卷号 | 11期号:5页码:16 |
| 关键词 | land-use change land fragmentation land-cover data cultivated land protection China |
| DOI | 10.3390/land11050684 |
| 通讯作者 | Wang, Xue(wangxue@igsnrr.ac.cn) |
| 英文摘要 | Cultivated land area and fragmentation are two crucial elements that influence food production in China. However, few studies have analyzed the fine-grained changes in both the area and the fragmentation of cultivated land from a national perspective. Using a 30 m annual land-cover dataset with the help of cultivated land area (CA) and a newly constructed coupling landscape fragmentation index (CLFI), this research identified the spatial distribution characteristics of both the area and the landscape fragmentation of cultivated land in Chinese counties and simultaneously analyzed the changes in the above two elements since the beginning of the 21st century. The results showed that the distribution pattern of CA in China's counties was large in the north and small in the south. During the first two decades of the 21st century, the total CA of China decreased, but the decrease rate decreased from 2.91% in 2000-2010 to 0.41% in 2010-2020; in contrast, the CLFI of China showed an increasing trend, but the increase rate also decreased, from 4.06% in 2000-2010 to 0.51% in 2010-2020. Spatially, from 2000 to 2010, there was an obvious reverse distribution pattern between counties with large CA changes and those with large CLFI changes; however, this pattern became less obvious from 2010 to 2020. Urban expansion, sloping land conversion programs and other ecological protection programs, and land development and consolidation programs were major causes of changes in the CA and CLFI across China. The findings of this research provide a data basis and scientific support for the protection and large-scale utilization of cultivated land, where this information is necessary to ensure food security. |
| WOS关键词 | FARMLAND ABANDONMENT ; CONSOLIDATION PROJECT ; LOESS PLATEAU ; AREAS ; PRODUCTIVITY ; CIRCULATION ; EXPANSION ; DYNAMICS ; PROVINCE ; DRIVERS |
| 资助项目 | National Natural Science Foundation of China[42171264] ; National Natural Science Foundation of China[41930757] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000801696600001 |
| 出版者 | MDPI |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/178650]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Xue |
| 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 | Wang, Xue. Changes in Cultivated Land Loss and Landscape Fragmentation in China from 2000 to 2020[J]. LAND,2022,11(5):16. |
| APA | Wang, Xue.(2022).Changes in Cultivated Land Loss and Landscape Fragmentation in China from 2000 to 2020.LAND,11(5),16. |
| MLA | Wang, Xue."Changes in Cultivated Land Loss and Landscape Fragmentation in China from 2000 to 2020".LAND 11.5(2022):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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