IGSNRR OpenIR
FARMLAND CONVERSION DECREASES REGIONAL AND NATIONAL LAND QUALITY IN CHINA
Song, Wei1; Liu, Mingliang2
2017-02-01
Source PublicationLAND DEGRADATION & DEVELOPMENT
ISSN1085-3278
Volume28Issue:2Pages:459-471
Corresponding AuthorSong, Wei(songw@igsnrr.ac.cn)
AbstractMaintaining 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.
KeywordLand use conversion farmland land quality food security China
DOI10.1002/ldr.2518
WOS KeywordSOIL ORGANIC-CARBON ; CULTIVATED LAND ; IMPACTS ; RUNOFF ; MANAGEMENT ; EROSION ; BASIN ; GRAIN ; GREEN ; PRODUCTIVITY
Indexed BySCI
Language英语
Funding ProjectNational 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]
Funding OrganizationNational 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
WOS Research AreaEnvironmental Sciences & Ecology ; Agriculture
WOS SubjectEnvironmental Sciences ; Soil Science
WOS IDWOS:000394955500007
PublisherWILEY-BLACKWELL
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/64820
Collection中国科学院地理科学与资源研究所
Corresponding AuthorSong, Wei
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, 11A,Datun Rd, Beijing 100101, Peoples R China
2.Washington State Univ, Dept Civil & Environm Engn, Pullman, WA 99164 USA
Recommended Citation
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.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Song, Wei]'s Articles
[Liu, Mingliang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Song, Wei]'s Articles
[Liu, Mingliang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Song, Wei]'s Articles
[Liu, Mingliang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.