[1]LI Mengwei,LUAN Qing,ZHANG Ning,et al.Analysis of Spatiotemporal Dynamics and Influencing Factors of Vegetation NDVI in Lliang City from 2000 to 2019[J].Research of Soil and Water Conservation,2022,29(04):248-254.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
29
Number of periods:
2022 04
Page number:
248-254
Column:
Public date:
2022-06-20
- Title:
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Analysis of Spatiotemporal Dynamics and Influencing Factors of Vegetation NDVI in Lüliang City from 2000 to 2019
- Author(s):
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LI Mengwei1, LUAN Qing1, ZHANG Ning2, CHANG Qing3, FAN Zihan4, YANG Qian1, ZHAO Yongqiang1, MI Xiaonan1
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(1.Shanxi Climate Center, Taiyuan 030006, China; 2.Shanxi Meteorological Information Center, Taiyuan 030006, China; 3.Shanxi Meteorological Service Center, Taiyuan 030002, China; 4.Shanxi Forestry and Grassland Engineering Station, Taiyuan 030001, China)
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- Keywords:
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Lü; liang City; vegetation coverage; residual analysis; human activities
- CLC:
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Q948
- DOI:
-
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- Abstract:
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Based on the method of spatial interpolation, spatial correlation analysis and residual analysis, the annual normalized difference vegetation index(NDVI), annual temperature and precipitation meteorological observation data at 13 meteorological observation stations from 2000 to 2019 were selected to analyze the spatiotemporal variation characteristics of vegetation NDVI and the impact of climate change and human activities. NDVI showed a fluctuating increase trend from 2000 to 2019 in 96.32% of Lüliang City. However, there were obvious spatial differences in Lüliang City. NDVI was higher in the Lüliang Mountain, and lower in the eastern plain area and along the western Yellow River area. As a whole, NDVI in Lüliang City showed a fluctuating increase trend, with the maximum in 2018. Spatial correlation analysis showed that NDVI was positively correlated with both annual precipitation and temperature in the whole of regions, which was significantly correlated(p<0.05)in 38% of Lüliang City. As for precipitation, the influence was stronger than temperature. Residual analysis shows that human activities influenced positively the vegetation coverage change in more than 95% of Lüliang City. Therefore, returning farmland to forestland and grassland projects have boosted increase of vegetation coverage in Lüliang City.