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[1]ZHENG Fang,ZHANG Jian-jun.Temporal and Spatial Changes of Soil Moisture in Remanent Loess Plateau Gully Region of Western Shanxi Province[J].Research of Soil and Water Conservation,2010,17(05):226-230.

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Temporal and Spatial Changes of Soil Moisture in Remanent Loess Plateau Gully Region of Western Shanxi Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 17 Number of periods: 2010 05 Page number: 226-230 Column: Public date: 2010-10-20

Title:: Temporal and Spatial Changes of Soil Moisture in Remanent Loess Plateau Gully Region of Western Shanxi Province

Author(s):: ZHENG Fang¹, ZHANG Jian-jun^1,2; 1. College of Soil & Water Conservation, Beijing Forestry University, Beijing 100083, China;
2. The key Laboratory for Soil & Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China

Keywords:: soil moisture; seasonal variation; vertical variation; remanet Loess Plateau gully region

CLC:: S152.7

DOI:: -

Abstract:: Studying on soil moisture is of great significance for vegetation restoration and reconstruction in arid and semi-arid on the Loess Plateau.The dynamic changes of soil moisture in slope grassland, Robinia pseudoacacia forestland, Ostryopsis davidiana shrubland in remanet loess plateau gully region of western Shanxi province were analyzed. The results showed that whether seasonal or vertical variation of soil moisture, the dynamic changes of soil moisture in the study area in the rainy year (1990) were significantly different from those in the normal rainfall pattern year (1991). In the rainy year (1990) the charts of seasonal variation of soil moisture in experimental plots were concave curve, while in the normal year (1991) the charts of seasonal variation of soil moisture in experimental plots were W-shaped curve; whether in the rainy year (1990) or in the normal year (1991), the soil water contents decreased during the growing season; the vertical changes of soil moisture in Ostryopsis davidiana shrubland in the normal year (1991) were much smaller than in the rainy year (1990), and the loss of soil water in deep layers in Robinia pseudoacacia forestland was greater in the normal year (1991) than in the rainy year (1990). After multiple comparisons, differences of soil water contents among all layers in slope grassland were not significant, while differences of soil water contents between top layers (0-20,20-40 cm) and deep layers (60-100 cm) in forestland were significant.

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