大兴安岭植被NDVI变化及其对气候的响应

doi:10.3969/j.issn.1673-503X.2019.02.011

Journal of Meteorology and Environment ›› 2019, Vol. 35 ›› Issue (2): 77-83.doi: 10.3969/j.issn.1673-503X.2019.02.011

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Variation of vegetation NDVI and its response to climate change in the Greater Khingan Range

QU Xue-bin^1,2, ZHANG Xu-ming², SUN Zhuo³

1. Lanzhou Institute of Arid Meteorology, China Meteorological Administration/Key Laboratory of Arid Climate Change and Reducing Disaster of Gansu Province/Key Laboratory of Arid Climate Change and Reducing Disaster of China Meteorological Administration, Lanzhou 730020, China;
2. Hulun Buir Meteorological Service, Hulun Buir 021008, China;
3. Panjin Meteorological Service, Panjin 124000, China

Received:2017-09-06 Revised:2018-03-29 Online:2019-04-30 Published:2019-04-30

Abstract

Abstract:

Vegetation NDVI series from 2000 to 2016 in the Greater Khingan Range was reconstructed using the S-G filter method.The variations of vegetation NDVI during the growing season and their responses to climate were analyzed considering the factors of elevation,slope orientation,slope angle,temperature,and precipitation.The results show that the average of vegetation NDVI during growing season increased by 0.029 per decade.The vegetation NDVI decreased slowly first,then increased rapidly with the increase of elevation.The vegetation NDVI showed an increasing trend with the increase of the slope.The variation of vegetation NDVI showed no obvious regularity with the change of slope orientation.The averaged of vegetation NDVI during growing season showed a significant positive correlation with precipitation of one year and two years ago,indicating that NDVI had obvious hysteresis compared to precipitation.There was a significant positive correlation between the vegetation NDVI at different elevations with the air temperature in the early days of vegetation restoration.There is a significant difference for correlation between vegetation NDVI and precipitation within a year in the vertical direction.

Key words: NDVI, Greater Khingan Range, Climate Response

CLC Number:

Q948
P467

QU Xue-bin, ZHANG Xu-ming, SUN Zhuo. Variation of vegetation NDVI and its response to climate change in the Greater Khingan Range[J]. Journal of Meteorology and Environment, 2019, 35(2): 77-83.

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Variation of vegetation NDVI and its response to climate change in the Greater Khingan Range

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