[1]LIU Nana,CHEN Huijuan,KONG Dejie.Soil Moisture Budget in Different Types of Grasslands in Yanchi County of Ningxia Arid Zone[J].Research of Soil and Water Conservation,2016,23(01):23-28.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 01
Page number:
23-28
Column:
Public date:
2016-02-28
- Title:
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Soil Moisture Budget in Different Types of Grasslands in Yanchi County of Ningxia Arid Zone
- Author(s):
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LIU Nana1, CHEN Huijuan1, KONG Dejie2,3,4
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1. Ningxia Agricultural Institute of Survey Design, Yinchuan 750002, China;
2. Agricultural Biotechnology Center of Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan 750002, China;
3. College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China;
4. Research Center of Recycle Agriculture Engineering and Technology of Shaanxi Province, Yangling, Shaanxi 712100, China
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- Keywords:
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soil moisture; grassland types; moisture storage; Surfer
- CLC:
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S152.7
- DOI:
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- Abstract:
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Six types of grasslands in Yanchi County of Ningxia arid zone were chosen as the research sites. Soil moisture monitoring in the depths ranging from 0 cm to 100 cm in 6 types grasslands was carried out, and spatial characteristics of soil moisture was analyzed by Surfer software. The total soil moisture storage of different depth was calculated by soil water balance equation, moreover, the change of soil moisture storage and evapotranspiration were analyzed based on the precipitation in the test plots of different grasslands in growing season. The results showed that rainfall and vegetation types were the main reason for soil moisture dynamic variation in different types in Ningxia farming pastoral zone, soil moisture variation of sand dune is more intense, and the coefficient of variation changed a lot in the field of transplanting Caragana korshinskii, indicating that soil water loss was the highest in the drought condition, and most moisture was maintained under the rainfall. So we should increase vegetation coverage of sand dune, and perform moderate mowing and grazing of eugenic vegetation in order to reduce vegetation evapotranspiration, and to keep the soil water resources to be long-term stable and sustainable.