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[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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Analysis of Spatiotemporal Dynamics and Influencing Factors of Vegetation NDVI in Lüliang City from 2000 to 2019

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:: Analysis of Spatiotemporal Dynamics and Influencing Factors of Vegetation NDVI in Lüliang City from 2000 to 2019

Author(s):: LI Mengwei¹, LUAN Qing¹, ZHANG Ning², CHANG Qing³, FAN Zihan⁴, YANG Qian¹, ZHAO Yongqiang¹, MI Xiaonan¹; (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)

Keywords:: Lü; liang City; vegetation coverage; residual analysis; human activities

CLC:: Q948

DOI:: -

Abstract:: 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.

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Last Update: 2022-06-20