WANG Yucheng. Effects of Broad-leaved Forest on Rainfall Redistribution in Mountain Land in Northern Hebei Province[J]. Bulletin of Soiland Water Conservation, 2018, 38(1): 107-110.
DOI:
WANG Yucheng. Effects of Broad-leaved Forest on Rainfall Redistribution in Mountain Land in Northern Hebei Province[J]. Bulletin of Soiland Water Conservation, 2018, 38(1): 107-110. DOI: 10.13961/j.cnki.stbctb.2018.01.018.
Effects of Broad-leaved Forest on Rainfall Redistribution in Mountain Land in Northern Hebei Province
[Objective] The paper aims to discuss the influence of canopy rainfall penetration
canopy interception and trunk runoff on rainfall redistribution in the mountainous hilly forest of Northern Hebei Province
and provide a basis for forest construction and forest structure adjustment in this area.[Methods] The correlation analysis and regression analysis of forest rainfall data were conducted on SPSS.[Results] The penetrating rain accounted for the largest proportion
accounting for 70.22% of the total. The canopy interception accounted for 28.20% while the trunk runoff accounted for 1.58% (R2=0.997 9)
there was no rain through the forest when the rainfall was relatively small. And when the rainfall outside the forest reached 0.78 mm
penetration occurs. Canopy interception played a very important role in the redistribution of rainfall. There was a significant power function relationship between canopy interception and rainfall outside the forest (p<0.01). There was a positive correlation between trunk runoff and rainfall outside the forest (R2=0.9703). When the rainfall reached 4.88 mm
the trunk runoff occurred in the broad-leaved forest
but the trunk runoff had a time lag
which was closely related to the forest itself and the intensity of rainfall. When the leaf area index is small
and the angle between branches is about 45%
the bark surface was smooth
trunk runoff was relatively easy to occur.[Conclusion] The forest canopy had an important influence on the redistribution of rainfall. The hydrological effects of the canopy of broad-leaved forest in northern Hebei Province were related to the forest health development.
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Related Author
Wang Ligang
Cui Lin
Si Si
Ji Xiaohui
Zhao Ying
Fang Yufeng
Zhang Yuzhu
SUN Qing-yang
Related Institution
CAS Key Laboratory of Forest;Ecology and Silviculture, Institute of Applied Ecology, Chinese Academy of Sciences , Shengyang
Heilongjiang Zhalong Wetland Ecosystem;Observation and Research Station
National Permanent Scientific Research Base on Shelter forest in Nenjiang Plain, Heilongjiang Songnen;Plain Farmland Shelterbelt Ecosystem Observation and Research Station, Qiqihar Branch of Heilongjiang;Academy of Forestry
College of Soil and Water Conservation, Key Laboratory of Soil and Water Conservation and Combating Deserti fication of Ministry of Education, Beijing Forestry University
College of Soil and Water Conservation, and Key Lab of Soil and Water Conservation and Desertification Combating of the Ministry of Education, Beijing Forestry University