Hydrological Effects of Pinus Tabulae f ormis and Larix Princpis Forest Litters in North Mountain of Hebei Province
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    Abstract:

    This study investigated water-holding characteristics of Pinus tabulaeformis and Larix princpis forest litter found in Mulan-Weichang National forest farm. The results show that in the Pinus tabulaefor-mis and Larix princpis forests, the litter was as thick as 6.1 and 4.0 cm, with total water holding capacity of 33.93 and 43.16 t/hm2, absorbed water contents of 268.10 g and 157.54 g(measured after 24 h immer-sion), and effective interception capacity of 30.07 and 57.56 t/hm2, respectively. The litters of Pinus tabu-laeformis and Larix princpis showed similar water-holding capacity, water absorption rate and soaking time. Overall, the relationship between litter water-holding capacity and soaking time was described well with a logarithmic curve, and that between the water absorption rate and soaking time was fitted well with a power function. The water absorption rate was fastest in the initial 0-4 h, decreased gradually in 4-8 h after immersion, and the water content reached its maximum water-holding capacity after 10 h.

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梁文俊,丁国栋,周美思,臧荫桐,贺宇,安云,高广磊,包岩峰.冀北山地油松和落叶松林下枯落物的水文效应[J].水土保持通报英文版,2012,(4):71-74

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History
  • Received:October 05,2011
  • Revised:
  • Adopted:
  • Online: November 25,2014
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