FARMLAND CONVERSION DECREASES REGIONAL AND NATIONAL LAND QUALITY IN CHINA
文献类型：期刊论文
| 作者 | Song, Wei2; Liu, Mingliang1 |
| 刊名 | LAND DEGRADATION & DEVELOPMENT
 |
| 出版日期 | 2017-02-01 |
| 卷号 | 28期号:2页码:459-471 |
| 关键词 | Land use conversion farmland land quality food security China |
| ISSN号 | 1085-3278 |
| DOI | 10.1002/ldr.2518 |
| 通讯作者 | Song, Wei(songw@igsnrr.ac.cn) |
| 英文摘要 | Maintaining sufficient farmland to ensure food security and a strong rural economy is crucial for China. At the national as well as regional levels, we compared the quality of the land converted from and to farmland during the period 1986-2005, thus quantifying the change in farmland quality directly attributable to land-use conversion. Specifically, we compared land cover maps compiled for the initial and final years of the study period at a 1:250,000 scale by institutes of the Chinese Academy of Sciences, and combined this with national land quality assessment data compiled at the beginning of the period. Comparison of the land cover maps revealed that over the 20-year period 12.9Mha of farmland were converted to other land uses and 14.0Mha of new farmland were brought under cultivation. Large net increases in farmland area occurred in Heilongjiang, Jilin, Liaoning, Xinjiang, and Inner Mongolia, together contributing 3.5Mha of the net increase in farmland area. Several developed provinces, e.g. Beijing (-21.20%), Shanghai (-15.81%), Zhejiang (-9.85%), Guangdong (-7.79%), and Tianjin (-6.35%), experienced rapid farmland decreases. Although there was a net increase in farmland, the most suitable and productive farmland decreased by 1.8% while low-quality farmland increased by 1.4%. Thus, focusing solely on maintaining the total farmland area did not prevent overall loss of a substantial amount of high-quality farmland. Farmland protection policies should therefore take into account both farmland quantity and quality. Copyright (C) 2016 John Wiley & Sons, Ltd. |
| WOS关键词 | SOIL ORGANIC-CARBON ; CULTIVATED LAND ; IMPACTS ; RUNOFF ; MANAGEMENT ; EROSION ; BASIN ; GRAIN ; GREEN ; PRODUCTIVITY |
| 资助项目 | National Natural Science Foundation of China[41501192] ; National Natural Science Foundation of China[41001108] ; National Key Basic Research Program of China[2015CB452702] ; Key Laboratory of Geo-Informatics of National Administration of Surveying, Mapping and Geoinformation[777142107] |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000394955500007 |
| 出版者 | WILEY-BLACKWELL |
| 资助机构 | National Natural Science Foundation of China ; National Key Basic Research Program of China ; Key Laboratory of Geo-Informatics of National Administration of Surveying, Mapping and Geoinformation |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/64819]  |
| 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 | 1.Washington State Univ, Dept Civil & Environm Engn, Pullman, WA 99164 USA 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, 11A,Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Wei,Liu, Mingliang. FARMLAND CONVERSION DECREASES REGIONAL AND NATIONAL LAND QUALITY IN CHINA[J]. LAND DEGRADATION & DEVELOPMENT,2017,28(2):459-471. |
| APA | Song, Wei,&Liu, Mingliang.(2017).FARMLAND CONVERSION DECREASES REGIONAL AND NATIONAL LAND QUALITY IN CHINA.LAND DEGRADATION & DEVELOPMENT,28(2),459-471. |
| MLA | Song, Wei,et al."FARMLAND CONVERSION DECREASES REGIONAL AND NATIONAL LAND QUALITY IN CHINA".LAND DEGRADATION & DEVELOPMENT 28.2(2017):459-471. |
入库方式： OAI收割
来源：地理科学与资源研究所
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