[1]LU Shao-wei,CHEN Bo,PAN Qing-hua,et al.Hydrological Effects of Forest Litters and Soil in Pinus Tabuliformis Plantations at the Different Altitudes of Mountains of Beijing[J].Research of Soil and Water Conservation,2013,20(06):54-58,70.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 06
Page number:
54-58,70
Column:
Public date:
2013-12-28
- Title:
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Hydrological Effects of Forest Litters and Soil in Pinus Tabuliformis Plantations at the Different Altitudes of Mountains of Beijing
- Author(s):
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LU Shao-wei1, CHEN Bo1, PAN Qing-hua1, LI Shao-ning1, ZHANG Yu-ping1, REN Cui-mei2
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1. Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100093, China;
2. Daqing Branch, Heilongjiang Academy of Agricultural Sciences, Daqing, Heilongjiang 163316, China
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- Keywords:
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soil and water conservation; mountain of Beijing; Pinus Tabuliformis; altitudes; litters; hydrologyof soil
- CLC:
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S715.7
- DOI:
-
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- Abstract:
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A preliminary study on hydrological effects of litter layers and soil layer in planted Pinus Tabuliformis forests was carried out at four different altitudes (480, 540, 690 m and 820 m) in Badaling Shifosi shallow mountain of Beijing. The result showed that the litter total storage capacity, the maximum water holding capacity and the modified interception capacity increased initially and then decreased, the maximum water holding rate decreased then increased, the total storage capacity of litter was about 10.63~31.42 t/hm2, the maximum water holding capacity was about 17.27~37.17 t/hm2, the modified interception capacity was about 6.72~28.71 t/hm2, the maximum water holding rate was about 164.32%~185.77%. Water holding capacity and soaking time of without decomposition litter and semi-decomposition litter both had visible logarithmic relationship(R > 0.93), relationship between absorption rate and immersion time was described by power function(R > 0.73). The soil bulk density increased with the increase of altitude, the average of soil bulk density ranged from 0.97 g/cm3 to 1.22 g/cm3, with the altitudes increase, both the total soil porosity and the soil water-holding capacity decreased. The relation between infiltration rate and infiltration fit time can be described by power function(R > 0.96). Generally, Pinus tabulaeformis forest at low altitude has the stronger water conservation function compared with that in highaltitude.