Advances in Atmospheric Sciences

, Volume 29, Issue 5, pp 1063–1077

Responses of grassland and forest to temperature and precipitation changes in Northeast China

  • Jing Peng (彭 静)
  • Wenjie Dong (董文杰)
  • Wenping Yuan (袁文平)
  • Yong Zhang (张 勇)
Article

DOI: 10.1007/s00376-012-1172-2

Cite this article as:
Peng, J., Dong, W., Yuan, W. et al. Adv. Atmos. Sci. (2012) 29: 1063. doi:10.1007/s00376-012-1172-2

Abstract

Using the Normalized Difference Vegetation Index (NDVI) as an indicator of vegetation growth, we explored the characteristics and differences in the response to drought of five vegetation biomes in Northeast China, including typical steppe, desert steppe, meadow steppe, deciduous coniferous forest and deciduous broad-leaved forest during the period 1982–2009. The results indicate that growing season precipitation may be the primary vegetation growth-limiting factor in grasslands. More than 70% of the temporal variations in NDVI can be explained by the amount of precipitation during the growing season in typical and desert steppes. During the same period, the mean temperature in the growing season could explain nearly 43% of the variations in the mean growing season NDVI and is therefore a dominant growth-limiting factor for forest ecosystems. Therefore, the NDVI trends differ largely due to differences in the vegetation growth-limiting factors of the different vegetation biomes. The NDVI responses to droughts vary in magnitude and direction and depend on the drought-affected areas of the five vegetation types. Specifically, the changes in NDVI are consistent with the variations in precipitation for grassland ecosystems. A lack of precipitation resulted in decreases in NDVI, thereby reducing vegetation growth in these regions. Conversely, increasing precipitation decreased the NDVI of forest ecosystems. The results also suggest that grasslands under arid and semi-arid environments may be more sensitive to drought than forests under humid environments. Among grassland ecosystems, desert steppe was most sensitive to drought, followed by typical steppe; meadow steppe was the least sensitive.

Key words

drought grassland forest NDVI departures precipitation departures temperature departures Northeast China 

Copyright information

© Chinese National Committee for International Association of Meteorology and Atmospheric Sciences, Institute of Atmospheric Physics, Science Press and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Jing Peng (彭 静)
    • 1
    • 2
  • Wenjie Dong (董文杰)
    • 1
    • 2
  • Wenping Yuan (袁文平)
    • 1
    • 2
  • Yong Zhang (张 勇)
    • 3
  1. 1.State Key Laboratory of Earth Surface Processes and Resource Ecology, College of Global Change and Earth System ScienceBeijing Normal UniversityZhuhaiChina
  2. 2.State Key Laboratory of Earth Surface Processes and Resource Ecology, College of Global Change and Earth System ScienceBeijing Normal UniversityBeijingChina
  3. 3.National Climate CenterChina Meteorological AdministrationBeijingChina

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