[1]ZHANG Yongwang,WAN Shanshan,WANG Jun,et al.Soil Water Deficit During Vegetation Succession on the Loess Plateau[J].Research of Soil and Water Conservation,2020,27(05):120-125,132.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 05
Page number:
120-125,132
Column:
目次
Public date:
2020-08-20
- Title:
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Soil Water Deficit During Vegetation Succession on the Loess Plateau
- Author(s):
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ZHANG Yongwang1, WAN Shanshan1, WANG Jun1, WEI Yaoyao1, QU Yatan1, LIU Shipeng1, CHANG Haifei1, WANG Yan1, SHANGGUAN Zhouping2
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(1.College of Life Sciences, Yan'an University, Yan'an, Shaanxi 716000, China; 2.Institute of Soil and Water Conservation, Chinese Academy of Sciences and ministry of Water Resources, Yangling, Shaanxi 712100, China)
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- Keywords:
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soil water deficit; secondary forest; vegetation type; Loess Plateau
- CLC:
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S154.1
- DOI:
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- Abstract:
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Soil water deficit is serious during the vegetation restoration on the Loess Plateau, which causes great obstacle to ecological restoration and vegetation construction on the Loess Plateau. Only by fully understanding the characteristics of soil moisture and its deficiency on the Loess Plateau can provide a theoretical basis for vegetation restoration. In this study, soil water contents of typical secondary forest and grassland on the Loess Plateau were measured, and soil water storage capacity and soil water deficit on the Populus davidiana Dode, Hippophae rhamnoides(Linn.), Quercus liaotungensis Koidz woodland and layland in rainy and non-rainy seasons were quantitatively evaluated. The results showed that the soil moisture contents and water storage capacities in the 0—500 cm soil layer of the three kinds of forestlands increased first and then declined slowly with the increase of soil depth, and those at the layland increased with the increase of soil depth, and the water content and water storage capacity were the highest; The soil water content and water storage of different restored vegetation decreased in the order: layland>Hippophae rhamnoides(Linn.)>Populus davidiana Dode> Quercus liaotungensis Koidz woodland; compared with the layland, the relative deficit index of three kinds of woodlands decreased in the order: Quercus liaotungensis Koidz>Populus davidiana Dode>Hippophae rhamnoides(Linn.)woodland, the soil deficit in the rainy season was more serious than that in the non-rainy season; vegetation type, soil texture and soil depth are the key factors affecting soil water deficit during the vegetation succession.