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When and where did the Loess Plateau turn "green"? Analysis of the tendency and breakpoints of the normalized difference vegetation index
Cao, Zhi1,2; Li, Yurui1,2; Liu, Yansui1,2; Chen, Yufu1,2; Wang, Yongsheng1,2
2018
Source PublicationLAND DEGRADATION & DEVELOPMENT
ISSN1085-3278
Volume29Issue:1Pages:162-175
Corresponding AuthorLiu, Yansui(liuys@igsnrr.ac.cn)
AbstractThe Loess Plateau experiences the most serious soil erosion problems in China and possibly even globally. Many measures have been taken to increase the vegetation cover and to control soil erosion. Of these measures, the Grain for Green Project, launched in 1999, has been the most effective, changing the ecological and socio-economic situation of the Plateau significantly. Using time series normalized difference vegetation index (NDVI) data from 1981 to 2013, this study analysed spatial patterns of changes in vegetation cover, detected spatial patterns of the abrupt-change time of NDVI trends, and investigated factors that may contribute to these changes. The results showed that (a) vegetation restoration was obvious over the last decades, especially in the 2000s, and the increase in NDVI during 2000-2013 was more than 3-times that during 1990-2000. Approximately 54.99% of the Plateau during 2000-2013 had a statistically significant increase, mainly distributing in loess hilly and gully region and loess gully region. (b) Vegetation restoration was comprehensively affected by climate change and human activities (e.g., the Grain for Green Project, urbanization and policies), and the effects of each factor varied for different regions. (c) Vegetation in most of the Plateau began to increase around 2007-2010, and 4 discrete areas with different timings of such break points were detected. The difference in the timing of break points in NDVI may be related with precipitation, reproducing tree species, management measures, and survival rate. These results imply that integrating natural and human factors is important when making effective and suitable measures and policies.
Keywordabrupt change in NDVI break points of NDVI Loess Plateau NDVI the Grain for Green Project
DOI10.1002/ldr.2852
WOS KeywordSOIL-EROSION ; LAND-USE ; ECOLOGICAL RESTORATION ; ECOSYSTEM SERVICES ; YELLOW-RIVER ; CHINA ; GRAIN ; PROJECT ; REGION ; PRECIPITATION
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2017YFC0504700] ; National Natural Science Foundation of China[41571166]
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology ; Agriculture
WOS SubjectEnvironmental Sciences ; Soil Science
WOS IDWOS:000423123700015
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/56885
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiu, Yansui
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Ctr Assessment & Res Targeted Poverty Alleviat, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Cao, Zhi,Li, Yurui,Liu, Yansui,et al. When and where did the Loess Plateau turn "green"? Analysis of the tendency and breakpoints of the normalized difference vegetation index[J]. LAND DEGRADATION & DEVELOPMENT,2018,29(1):162-175.
APA Cao, Zhi,Li, Yurui,Liu, Yansui,Chen, Yufu,&Wang, Yongsheng.(2018).When and where did the Loess Plateau turn "green"? Analysis of the tendency and breakpoints of the normalized difference vegetation index.LAND DEGRADATION & DEVELOPMENT,29(1),162-175.
MLA Cao, Zhi,et al."When and where did the Loess Plateau turn "green"? Analysis of the tendency and breakpoints of the normalized difference vegetation index".LAND DEGRADATION & DEVELOPMENT 29.1(2018):162-175.
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