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Effects of soil drought on seedling growth and water metabolism of three common shrubs in Loess Plateau, Northwest China

  • Research Article
  • Published:
Frontiers of Forestry in China

Abstract

The growth and water metabolism of three common shrubs on the Loess Plateau were studied under soil with different water contents. Results showed that water consumption of those species decreased with the increase in drought stress, and water consumptions of these shrubs were different: Forsythia suspensa was the greatest, and Syringa oblata was the lowest. The growth rate of new branches and leaf area of three species were the fastest under adequate soil water conditions, and were the lowest under severe drought. Under the same water conditions, the growth of F. suspensa was the fastest while that of S. oblata was the slowest. The water content, proline and chlorophyll content of different species changed with the increase in soil water stress. The leaf water content of Periploca sepium and F. suspensa was obviously higher than that of S. oblata, while the leaf proline content of F. suspensa and S. oblata was lower than that of P. sepium. The ratio leaf chlorophyll a: b of F. suspensa and S. oblata decreased with the decrease in soil water content. Although these three shrubs had different mechanisms in response to drought stress, they all had higher drought resistance and could adapt to the drought condition on the Loess Plateau. This paper provided some bases for choosing tree species on the Loess Plateau.

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Authors and Affiliations

  1. College of Life Science, Northwest A&F University, Yangling, 712100, China

    An Yuyan & Liang Zongsuo

  2. Institute of Soil and Water Conservation, Northwest A&F University, Yangling, 712100, China

    Liang Zongsuo, Han Ruilian & Liu Guobin

Authors
  1. An Yuyan
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  2. Liang Zongsuo
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  3. Han Ruilian
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  4. Liu Guobin
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Corresponding author

Correspondence to Liang Zongsuo.

Additional information

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Translated from Acta Botanica Boreali-Occidentalia Sinica, 2007, 27(1): 91–97 [译自: 西北植物学报]

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An, Y., Liang, Z., Han, R. et al. Effects of soil drought on seedling growth and water metabolism of three common shrubs in Loess Plateau, Northwest China. Front. Forest. China 2, 410–416 (2007). https://doi.org/10.1007/s11461-007-0065-5

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  • DOI: https://doi.org/10.1007/s11461-007-0065-5

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