ZHANG Ning, GUO Binliang, ZHANG Nan, et al. Hydrological Effect of Litter Layer and Soil Layer Under Typical Stands in Luanhe River[J]. Bulletin of Soiland Water Conservation, 2015, 35(3): 44-48.
DOI:
ZHANG Ning, GUO Binliang, ZHANG Nan, et al. Hydrological Effect of Litter Layer and Soil Layer Under Typical Stands in Luanhe River[J]. Bulletin of Soiland Water Conservation, 2015, 35(3): 44-48. DOI: 10.13961/j.cnki.stbctb.2015.03.005.
Hydrological Effect of Litter Layer and Soil Layer Under Typical Stands in Luanhe River
[Objective] To study the hydrological effect of typical forest litter layer and soil layer on the upper Luanhe River
in order to provide theoretical basis for monitoring and evaluation of the forest. [Methods] The non-decomposed layer and semi-decomposed layer of three different types forest litter were investigated. [Results] (1) The litter accumulation amount
the maximum moisture capacity
and the effective retaining content of Pinus tabulaeformis forest were 12.03
19.4
and 23.52 t/hm2 respectively
those of larch forest were 9.51
11.9
and 17.03 t/hm2 respectively
and those of mixed forest of larch and birch were 5.54
13.0
and 13.7 t/hm2
respectively. (2) It nearly reached saturation in 8 h for semi-decomposed layer
while it needed 10 h for non-decomposed layer. The water absorption rate of litter reached maximum within 0.5 h
and it slowed down obviously at about 6 h. (3) The water holding capacity of soil layer for Larix gmelini and Betula platyphylla mixed forest was highest
which was 375.92 t/hm2
while it was lowest in soil layer of Pinus tabulaeformis forest
which was 248.04 t/hm2. Using the power function to fit the infiltration rate and infiltration time
the correlation coefficient R2 was more than 0.98. [Conclusion] The biomass
maximum water holding capacity
and the effective holding capacity are maximum in the litter layer of Pinus tabulaeformis forest
and the mixed forest of larch and birch have the highest soil water holding capacity.
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