An estimation of the extent of cropland abandonment in mountainous regions of China
文献类型：期刊论文
| 作者 | Li, Shengfa1,2,3; Li, Xiubin2,3; Sun, Laixiang4; Cao, Guiying4; Fischer, Guenther4; Tramberend, Sylvia4 |
| 刊名 | LAND DEGRADATION & DEVELOPMENT
 |
| 出版日期 | 2018-05-01 |
| 卷号 | 29期号:5页码:1327-1342 |
| 关键词 | agricultural labour productivity China cropland abandonment mountainous regions population projection |
| ISSN号 | 1085-3278 |
| DOI | 10.1002/ldr.2924 |
| 通讯作者 | Li, Xiubin(lixb@igsnrr.ac.cn) |
| 英文摘要 | With the wages for migrant workers increasing dramatically in China since 2003, the size of the agricultural labour forces has been shrinking rapidly. Intensively substituting agricultural machinery for the shrinking farm labour force is hardly possible for croplands in the mountainous regions of China where mechanization is difficult to achieve due to small field size and rough terrain. This has eventually led to cropland abandonment in these regions. Considering the high pressure for food security in China, cropland abandonment in the mountainous regions should not be ignored. By employing a novel method, this study estimates the extent of recently abandoned croplands (period 2000-2010) and the changes that can be expected in the future in China's mountainous areas. The results show that the total extent of abandoned croplands in Chinese mountainous counties during the period 2000 to 2010 is estimated at 147 million mu (1 mu=666.67m(2)); in total, about 28% of croplands in mountainous counties was abandoned, including croplands converted in the Grain for Green Programme. With 3 scenario assumptions, a sizeable extent, 114 to 203 million mu, of croplands may be abandoned from 2010 to 2030 with the rapid decrease and ageing of projected farm labour forces. This could exacerbate the future challenges of maintaining China's food security. A substantial increase in agricultural project investments, including land consolidation and agricultural productive fixed assets, especially microtillage machines, could help mitigate the risk of cropland abandonment. Additionally, land-use and environmental policymaking should take into account the expanding cropland abandonment in mountainous regions. |
| WOS关键词 | AGRICULTURAL LAND ABANDONMENT ; FOREST-TRANSITION THEORY ; SOIL ORGANIC-CARBON ; FARMLAND ABANDONMENT ; GREEN PROGRAM ; SWISS MOUNTAINS ; TM DATA ; AREAS ; COVER ; GRAIN |
| 资助项目 | National Basic Research Program of China (973 Program)[2015CB452706] ; GDAS' Special Project of Science and Technology Development[2018GDASCX-0903] ; GDAS' Special Project of Science and Technology Development[2017GDASCX-0101] ; GDAS' Special Project of Science and Technology Development[2018GDASCX-0101] ; National Natural Science Foundation of China[41161140352] |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000433587400003 |
| 出版者 | WILEY |
| 资助机构 | National Basic Research Program of China (973 Program) ; GDAS' Special Project of Science and Technology Development ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/54750]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Li, Xiubin |
| 作者单位 | 1.Guangzhou Inst Geog, Guangdong Open Lab Geospatial Informat Technol &, Guangzhou 510070, Guangdong, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Int Inst Appl Syst Anal, A-2361 Laxenburg, Austria |
| 推荐引用方式 GB/T 7714 | Li, Shengfa,Li, Xiubin,Sun, Laixiang,et al. An estimation of the extent of cropland abandonment in mountainous regions of China[J]. LAND DEGRADATION & DEVELOPMENT,2018,29(5):1327-1342. |
| APA | Li, Shengfa,Li, Xiubin,Sun, Laixiang,Cao, Guiying,Fischer, Guenther,&Tramberend, Sylvia.(2018).An estimation of the extent of cropland abandonment in mountainous regions of China.LAND DEGRADATION & DEVELOPMENT,29(5),1327-1342. |
| MLA | Li, Shengfa,et al."An estimation of the extent of cropland abandonment in mountainous regions of China".LAND DEGRADATION & DEVELOPMENT 29.5(2018):1327-1342. |
入库方式： OAI收割
来源：地理科学与资源研究所
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