[1]WEN Lu-zhe,CHEN Xi,WANG Chuan-zi,et al.Analysis on Factors Influencing Hydrologic Features Based on Lysimeters[J].Research of Soil and Water Conservation,2012,19(04):252-255.
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Analysis on Factors Influencing Hydrologic Features Based on Lysimeters
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
19
Number of periods:
2012 04
Page number:
252-255
Column:
Public date:
2012-08-20
- Title:
- Analysis on Factors Influencing Hydrologic Features Based on Lysimeters
- Keywords:
- Wudaogou Hydrologic Experimental Station; precipitation infiltration; runoff; phreatic water evaporation; influence factor
- CLC:
- TV11;P333.6
- DOI:
- -
- Abstract:
- The infiltration, runoff, phreatic water evaporation etc are the key factors governing the hydrology and environment of local area. The influences of rainfall soil moisture, rainfall intensity, underground water depth and crops on the precipitation infiltration, runoff and phreatic water evaporation was statistical analyzed based on data from lysimeters at Wudaogou Hydrologic Experimental Station. The results showed that without considering the infiltration-excess runoff, and under the other same condition, the preliminary soil moisture was greater, precipitation intensity was smaller, infiltration and runoff coefficient were bigger. Regardless of crops, the infiltration supplies, runoff and phreatic water evaporation coefficient increased along with the underground water depth reduced. The supply coefficient of non-crops cover was smaller than crop cover, when the rainfall was less than 100 mm. And the result was opposite when the rainfall intensity was more than 100 mm. The runoff coefficient of non-crops cover was greater than that of crop cover, while the phreatic water evaporation coefficient was smaller, and the difference of phreatic water evaporation coefficient was more obvious in the growth season. The above results offer some important references for soil and water loss control and ecological environment protection.
- References:
-
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Last Update:
1900-01-01