The characteristics of water deficit in various vegetation soils in northwestern Shanxi Province
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The characteristics of water deficit in various vegetation soils in northwestern Shanxi Province
Acta Scientiarum Naturalium Universitatis SunYatseniVol. 57, Issue 1, Pages: 102-109(2018)
作者机构:
太原师范学院历史地理与环境变迁研究所,山西,晋中,030619
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Published:2018,
Published Online:25 January 2018,
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WANG Ling, LIU Geng, FENG Xiangxing, et al. The characteristics of water deficit in various vegetation soils in northwestern Shanxi Province. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 57(1):102-109(2018)
DOI:
WANG Ling, LIU Geng, FENG Xiangxing, et al. The characteristics of water deficit in various vegetation soils in northwestern Shanxi Province. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 57(1):102-109(2018)DOI:
The characteristics of water deficit in various vegetation soils in northwestern Shanxi Province
We aimed to clarify the variation characteristics of soil water and the soil water deficit of artificial forestland in order to provide theoretical support for the selection of vegetation types and ecological restoration pattern. It was necessary to measure soil water in Northwestern Shanxi Loess hilly regions in Lan county. The moisture storage capacity and soil water deficit index of Cartagena korshinskii
Pinus tabuliformis and abandoned land in soil profiles of 0~600 cm depth were calculated to quantify soil water deficit during the rainy season and non-rainy season. The results showed that : ① The soil water changed with vegetation types
and even for the same vegetation type
the soil water was not consistent with other soil layers. The soil water content of 3 vegetation types showed first decreasing and then increasing trend with soil depth on the whole. Soil water profile contents of Cartagena korshinskii and Pinus tabuliformis showed a decreasing trend in the depth of 300 cm and 400 cm
respectively. In addition
the soil water content of abandoned land was higher than that of other artificial forestlands
and presented increasing type. ② The effective moisture storage capacity range showed the same trend for 3 vegetation types
with abandoned land>Cartagena korshinskii> Pinus tabuliformis
and the deficit soil water storage presented Pinus tabuliformis>Cartagena korshinskii>abandoned land. ③ There was a significant deficit phenomenon of Cartagena korshinskii and Pinus tabuliformis. The plot compared soil water deficit index of Cartagena korshinskii land and Pinus tabuliformis land was 0.24
0.69
respectively. Nevertheless
the plot compared soil water deficit index of abandoned land was only -0.19. Therefore
the water deficiency of Pinus tabuliformis land was worse than that of other soil types as a whole.
关键词
土壤水分亏缺人工林地植被类型晋西北
Keywords
soil water deficitartificial forestlandvegetation typesnorthwest Shanxi Province