WANG Ping, LI Hao, CHEN Qiang, et al. Different Scale Observation Sites of Snow Melt Runoff in Typical Black Soil Area[J]. Bulletin of Soiland Water Conservation, 2014, 33(5): 244-247.
DOI:
WANG Ping, LI Hao, CHEN Qiang, et al. Different Scale Observation Sites of Snow Melt Runoff in Typical Black Soil Area[J]. Bulletin of Soiland Water Conservation, 2014, 33(5): 244-247. DOI: 10.13961/j.cnki.stbctb.2014.05.051.
Different Scale Observation Sites of Snow Melt Runoff in Typical Black Soil Area
The snow melt runoff in different scale observation sites of slope
mini watershed and small watershed were monitored during past four years in the typical black soil area of Northeast China. The results showed that the beginning and duration of snow melt runoff was determined by the daily maximum temperature and the amount of snowfall in the winter. The runoff coefficient of snowfall was much larger than that of rainfall
and the annual amount of snow melt runoff was even more than that of rainfall in some years. The runoff coefficient in slope scale was larger than that in watersheds. The amount of snow melt runoff in small watershed could figure out the amount of snow melt into river. The runoff coefficient of snow had a large fluctuation
from 3 percent to 83.6 percent during the past four years
and annual mean runoff of snow melt was 59.3 percent of runoff of precipitation. Hence
the snow melt runoff can not be neglected in runoff monitoring.
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