Spatial–temporal variations of NDVI and its response to climate in China from 2001 to 2020
Vegetation plays an important role in global or regional environmental change. In this study, the spatial–temporal variations of NDVI and its response to climate in China and its seven sub-regions were investigated based on MODIS NDVI data, ERA5-land precipitation (PRE) and temperature (TEM) data fr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2022-12-01
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| Series: | International Journal of Digital Earth |
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| Online Access: | http://dx.doi.org/10.1080/17538947.2022.2116118 |
| _version_ | 1797678479662120960 |
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| author | Yuanyuan Wei Shougang Sun Dong Liang Zhaohong Jia |
| author_facet | Yuanyuan Wei Shougang Sun Dong Liang Zhaohong Jia |
| author_sort | Yuanyuan Wei |
| collection | DOAJ |
| description | Vegetation plays an important role in global or regional environmental change. In this study, the spatial–temporal variations of NDVI and its response to climate in China and its seven sub-regions were investigated based on MODIS NDVI data, ERA5-land precipitation (PRE) and temperature (TEM) data from 2001 to 2020. The inter-annual growth rate of NDVI in China was 0.0021/yr in the past 20 years. The inter-annual growth rates of NDVI in seven sub-regions had significant differences at regional or seasonal scales. The ratio of improved vegetation area to the total studied area reached about 70%. In summer, vegetation degradation was concentrated in East China and Southwest China. The vegetation in Central China and South China improved more obviously in autumn than in the other seasons. The vegetation of Northeast China had a remarkable degradation in autumn and winter, especially in winter. The influence degree of PRE (q = 0.54, P < 0.01) was greater than that of TEM (q = 0.27, P < 0.01) in the control of the spatial distribution of NDVI. The interaction influence degree q of PRE $\cap$ TEM was about 0.71 in the last 20 years. However, the PRE and TEM played different roles in vegetation growth in seven sub-regions. |
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| format | Article |
| id | doaj.art-423d9c8e6d78421c8abd64134ab54fcc |
| institution | Directory Open Access Journal |
| issn | 1753-8947 1753-8955 |
| language | English |
| last_indexed | 2024-03-11T23:00:21Z |
| publishDate | 2022-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | International Journal of Digital Earth |
| spelling | doaj.art-423d9c8e6d78421c8abd64134ab54fcc2023-09-21T14:57:11ZengTaylor & Francis GroupInternational Journal of Digital Earth1753-89471753-89552022-12-011511463148410.1080/17538947.2022.21161182116118Spatial–temporal variations of NDVI and its response to climate in China from 2001 to 2020Yuanyuan Wei0Shougang Sun1Dong Liang2Zhaohong Jia3Anhui UniversityAnhui UniversityAnhui UniversityAnhui UniversityVegetation plays an important role in global or regional environmental change. In this study, the spatial–temporal variations of NDVI and its response to climate in China and its seven sub-regions were investigated based on MODIS NDVI data, ERA5-land precipitation (PRE) and temperature (TEM) data from 2001 to 2020. The inter-annual growth rate of NDVI in China was 0.0021/yr in the past 20 years. The inter-annual growth rates of NDVI in seven sub-regions had significant differences at regional or seasonal scales. The ratio of improved vegetation area to the total studied area reached about 70%. In summer, vegetation degradation was concentrated in East China and Southwest China. The vegetation in Central China and South China improved more obviously in autumn than in the other seasons. The vegetation of Northeast China had a remarkable degradation in autumn and winter, especially in winter. The influence degree of PRE (q = 0.54, P < 0.01) was greater than that of TEM (q = 0.27, P < 0.01) in the control of the spatial distribution of NDVI. The interaction influence degree q of PRE $\cap$ TEM was about 0.71 in the last 20 years. However, the PRE and TEM played different roles in vegetation growth in seven sub-regions.http://dx.doi.org/10.1080/17538947.2022.2116118ndvispatial–temporal variationsclimate changemk testgeodetector |
| spellingShingle | Yuanyuan Wei Shougang Sun Dong Liang Zhaohong Jia Spatial–temporal variations of NDVI and its response to climate in China from 2001 to 2020 International Journal of Digital Earth ndvi spatial–temporal variations climate change mk test geodetector |
| title | Spatial–temporal variations of NDVI and its response to climate in China from 2001 to 2020 |
| title_full | Spatial–temporal variations of NDVI and its response to climate in China from 2001 to 2020 |
| title_fullStr | Spatial–temporal variations of NDVI and its response to climate in China from 2001 to 2020 |
| title_full_unstemmed | Spatial–temporal variations of NDVI and its response to climate in China from 2001 to 2020 |
| title_short | Spatial–temporal variations of NDVI and its response to climate in China from 2001 to 2020 |
| title_sort | spatial temporal variations of ndvi and its response to climate in china from 2001 to 2020 |
| topic | ndvi spatial–temporal variations climate change mk test geodetector |
| url | http://dx.doi.org/10.1080/17538947.2022.2116118 |
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