XING Xiaoguang, SHEN Huitao, MA Wencai, et al. Hydrological Effects of Larix Principis-rupprechtii and Betula Platyphylla Forest Litters in Northwest Mountain of Hebei Province[J]. Bulletin of Soiland Water Conservation, 2016, 36(5): 126-130.
DOI:
XING Xiaoguang, SHEN Huitao, MA Wencai, et al. Hydrological Effects of Larix Principis-rupprechtii and Betula Platyphylla Forest Litters in Northwest Mountain of Hebei Province[J]. Bulletin of Soiland Water Conservation, 2016, 36(5): 126-130. DOI: 10.13961/j.cnki.stbctb.2016.05.004.
Hydrological Effects of Larix Principis-rupprechtii and Betula Platyphylla Forest Litters in Northwest Mountain of Hebei Province
[Objective] The differences in litter water-holding characteristics of different plantation types were investigated to provide scientific basis for understanding the forest hydrological cycles and its management in study area.[Methods] Larix principis-rupprechtii and Betula platyphylla plantations in Chongli mountain of Zhangjiakou City were chosen in this study. We established standard plots under the two forest types. The depth and storage of the litter layer were measured and water-holding characteristics of litter were measured using immersion method.[Results] The litter was as thick as 4.2 cm and 3.4 cm and the total litter volume was 10.90 t/hm2and 4.92 t/hm2 in the L. principis-rupprechtii and B. platyphylla plantations
respectively. The maximum water holding capacity(measured after 24 h immersion) of litter layer in L. principis-rupprechtii and B. platyphylla were 4 228.5 g/kg and 5 208.6 g/kg
and the corresponding effective water holding capacity were 14.06 t/hm2 and 8.85 t/hm2
respectively. During the whole water holding process
the water holding capacity
absorption and the immersed time change with same trend
they were superior to the rest of time in the first 4 hours and the water holding capacity reached saturation after 10 h immersion. In addition
the relationship between litter water holding capacity and immersed time followed a logarithmic curve
and that between the water absorption rate and immersed time was fitted well with a power function.[Conclusion] Hydrological function of forest litter is regulated by both litter storage and water-holding capacity. Some factors
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Related Author
KONG Ling-wei
CHEN Xiang-wei
LU Shao-wei
LI Shao-ning
CHEN Bo
GAO Chen
SHI Yuan
YANG Xiao-yan
Related Institution
College of Forestry, Northeast Forestry University
Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences
College of Forestry, Agricultural University of Hebei Province
College of Forestry, Hebei Agricultural University